HK1113305B

HK1113305B - Lactam compounds and their use as pharmaceuticals

Info

Publication number: HK1113305B
Application number: HK08100816.4A
Authority: HK
Inventors: Wenqing Yao; Chunhong He; Jincong Zhuo; Meizhong Xu; Colin Zhang; Ding-Quan Qian; David Burns; Brian W. Metcalf
Original assignee: Incyte Holdings Corporation
Priority date: 2004-11-10
Filing date: 2005-11-09
Publication date: 2016-08-19

Description

FIELD OF THE INVENTION

The present invention relates to modulators of 11-β hydroxyl steroid dehydrogenase type 1 (11βHSD1) and/or mineralocorticoid receptor (MR), compositions thereof and methods of using the same.

BACKGROUND OF THE INVENTION

Glucocorticoids are steroid hormones that regulate fat metabolism, function and distribution. In vertebrates, glucocorticoids also have profound and diverse physiological effects on development, neurobiology, inflammation, blood pressure, metabolism and programmed cell death. In humans, the primary endogenously-produced glucocorticoid is cortisol. Cortisol is synthesized in the zona fasciculate of the adrenal cortex under the control of a short-term neuroendocrine feedback circuit called the hypothalamic-pituitary-adrenal (HPA) axis. Adrenal production of cortisol proceeds under the control of adrenocorticotrophic hormone (ACTH), a factor produced and secreted by the anterior pituitary. Production of ACTH in the anterior pituitary is itself highly regulated, driven by corticotropin releasing hormone (CRH) produced by the paraventricular nucleus of the hypothalamus. The HPA axis maintains circulating cortisol concentrations within restricted limits, with forward drive at the diurnal maximum or during periods of stress, and is rapidly attenuated by a negative feedback loop resulting from the ability of cortisol to suppress ACTH production in the anterior pituitary and CRH production in the hypothalamus.

Aldosterone is another hormone produced by the adrenal cortex; aldosterone regulates sodium and potassium homeostasis. Fifty years ago, a role for aldosterone excess in human disease was reported in a description of the syndrome of primary aldosteronism (Conn, (1955), J. Lab. Clin. Med. 45: 6-17). It is now clear that elevated levels of aldosterone are associated with deleterious effects on the heart and kidneys, and are a major contributing factor to morbidity and mortality in both heart failure and hypertension.

Two members of the nuclear hormone receptor superfamily, glucocorticoid receptor (GR) and mineralocorticoid receptor (MR), mediate cortisol function in vivo, while the primary intracellular receptor for aldosterone is the MR. These receptors are also referred to as 'ligand-dependent transcription factors,' because their functionality is dependent on the receptor being bound to its ligand (for example, cortisol); upon ligand-binding these receptors directly modulate transcription via DNA-binding zinc finger domains and transcriptional activation domains.

Historically, the major determinants of glucocorticoid action were attributed to three primary factors: 1) circulating levels of glucocorticoid (driven primarily by the HPA axis), 2) protein binding of glucocorticoids in circulation, and 3) intracellular receptor density inside target tissues. Recently, a fourth determinant of glucocorticoid function was identified: tissue-specific pre-receptor metabolism by glucocorticoid-activating and -inactivating enzymes. These 11-beta-hydroxysteroid dehydrogenase (11-β-HSD) enzymes act as pre-receptor control enzymes that modulate activation of the GR and MR by regulation of glucocorticoid hormones. To date, two distinct isozymes of 11-beta-HSD have been cloned and characterized: 11βHSD1 (also known as 11-beta-HSD type 1, 11betaHSD1, HSD11B1, HDL, and HSD11L) and 11βHSD2. 11βHSD1 and 11βHSD2 catalyze the interconversion of hormonally active cortisol (corticosterone in rodents) and inactive cortisone (11-dehydrocorticosterone in rodents). 11βHSD1 is widely distributed in rat and human tissues; expression of the enzyme and corresponding mRNA have been detected in lung, testis, and most abundantly in liver and adipose tissue. 11βHSD1 catalyzes both 11-beta-dehydrogenation and the reverse 11-oxoreduction reaction, although 11βHSD1 acts predominantly as a NADPH-dependent oxoreductase in intact cells and tissues, catalyzing the activation of cortisol from inert cortisone (Low et al. (1994) J. Mol. Endocrin. 13: 167-174) and has been reported to regulate glucocorticoid access to the GR. Conversely, 11βHSD2 expression is found mainly in mineralocorticoid target tissues such as kidney, placenta, colon and salivary gland, acts as an NAD-dependent dehydrogenase catalyzing the inactivation of cortisol to cortisone (Albiston et al. (1994) Mol. Cell. Endocrin. 105: R11-R17), and has been found to protect the MR from glucocorticoid excess, such as high levels of receptor-active cortisol (Blum, et al., (2003) Prog. Nucl. Acid Res. Mol. Biol. 75:173-216).

In vitro, the MR binds cortisol and aldosterone with equal affinity. The tissue specificity of aldosterone activity, however, is conferred by the expression of 11βHSD2 (Funder et al. (1988), Science 242: 583-585). The inactivation of cortisol to cortisone by 11βHSD2 at the site of the MR enables aldosterone to bind to this receptor in vivo. The binding of aldosterone to the MR results in dissociation of the ligand-activated MR from a multiprotein complex containing chaperone proteins, translocation of the MR into the nucleus, and its binding to hormone response elements in regulatory regions of target gene promoters. Within the distal nephron of the kidney, induction of serum and glucocorticoid inducible kinase-1 (sgk-1) expression leads to the absorption of Na⁺ ions and water through the epithelial sodium channel, as well as potassium excretion with subsequent volume expansion and hypertension (Bhargava et al., (2001), Endo 142: 1587-1594).

In humans, elevated aldosterone concentrations are associated with endothelial dysfunction, myocardial infarction, left ventricular atrophy, and death. In attempts to modulate these ill effects, multiple intervention strategies have been adopted to control aldosterone overactivity and attenuate the resultant hypertension and its associated cardiovascular consequences. Inhibition of angiotensin-converting enzyme (ACE) and blockade of the angiotensin type 1 receptor (AT1R) are two strategies that directly impact the rennin-angiotensin-aldosterone system (RAAS). However, although ACE inhibition and AT1R antagonism initially reduce aldosterone concentrations, circulating concentrations of this hormone return to baseline levels with chronic therapy (known as 'aldosterone escape'). Importantly, co-administration of the MR antagonist Spironolactone or Eplerenone directly blocks the deleterious effects of this escape mechanism and dramatically reduces patient mortality (Pitt et al., New England J. Med. (1999), 341: 709-719; Pitt et al., New England J. Med. (2003), 348: 1309-1321). Therefore, MR antagonism may be an important treatment strategy for many patients with hypertension and cardiovascular disease, particularly those hypertensive patients at risk for target-organ damage.

Mutations in either of the genes encoding the 11-beta-HSD enzymes are associated with human pathology. For example, 11βHSD2 is expressed in aldosterone-sensitive tissues such as the distal nephron, salivary gland, and colonic mucosa where its cortisol dehydrogenase activity serves to protect the intrinsically non-selective MR from illicit occupation by cortisol (Edwards et al. (1988) Lancet 2: 986-989). Individuals with mutations in 11βHSD2 are deficient in this cortisol-inactivation activity and, as a result, present with a syndrome of apparent mineralocorticoid excess (also referred to as 'SAME') characterized by hypertension, hypokalemia, and sodium retention (Wilson et al. (1998) Proc. Natl. Acad. Sci. 95: 10200-10205). Likewise, mutations in 11βHSD1, a primary regulator of tissue-specific glucocorticoid bioavailability, and in the gene encoding a co-localized NADPH-generating enzyme, hexose 6-phosphate dehydrogenase (H6PD), can result in cortisone reductase deficiency (CRD), in which activation of cortisone to cortisol does not occur, resulting in adrenocorticotropin-mediated androgen excess. CRD patients excrete virtually all glucocorticoids as cortisone metabolites (tetrahydrocortisone) with low or absent cortisol metabolites (tetrahydrocortisols). When challenged with oral cortisone, CRD patients exhibit abnormally low plasma cortisol concentrations. These individuals present with ACTH-mediated androgen excess (hirsutism, menstrual irregularity, hyperandrogenism), a phenotype resembling polycystic ovary syndrome (PCOS) (Draper et al. (2003) Nat. Genet. 34: 434-439).

The importance of the HPA axis in controlling glucocorticoid excursions is evident from the fact that disruption of homeostasis in the HPA axis by either excess or deficient secretion or action results in Cushing's syndrome or Addison's disease, respectively (Miller and Chrousos (2001) Endocrinology and Metabolism, eds. Felig and Frohman (McGraw-Hill, New York), 4th Ed.: 387-524). Patients with Cushing's syndrome (a rare disease characterized by systemic glucocorticoid excess originating from the adrenal or pituitary tumors) or receiving glucocorticoid therapy develop reversible visceral fat obesity. Interestingly, the phenotype of Cushing's syndrome patients closely resembles that of Reaven's metabolic syndrome (also known as Syndrome X or insulin resistance syndrome) the symptoms of which include visceral obesity, glucose intolerance, insulin resistance, hypertension, type 2 diabetes and hyperlipidemia (Reaven (1993) Ann. Rev. Med. 44: 121-131). However, the role of glucocorticoids in prevalent forms of human obesity has remained obscure because circulating glucocorticoid concentrations are not elevated in the majority of metabolic syndrome patients. In fact, glucocorticoid action on target tissue depends not only on circulating levels but also on intracellular concentration, locally enhanced action of glucocorticoids in adipose tissue and skeletal muscle has been demonstrated in metabolic syndrome. Evidence has accumulated that enzyme activity of 11βHSD1, which regenerates active glucocorticoids from inactive forms and plays a central role in regulating intracellular glucocorticoid concentration, is commonly elevated in fat depots from obese individuals. This suggests a role for local glucocorticoid reactivation in obesity and metabolic syndrome.

Given the ability of 11βHSD1 to regenerate cortisol from inert circulating cortisone, considerable attention has been given to its role in the amplification of glucocorticoid function. 11βHSD1 is expressed in many key GR-rich tissues, including tissues of considerable metabolic importance such as liver, adipose, and skeletal muscle, and, as such, has been postulated to aid in the tissue-specific potentiation of glucocorticoid-mediated antagonism of insulin function. Considering a) the phenotypic similarity between glucocorticoid excess (Cushing's syndrome) and the metabolic syndrome with normal circulating glucocorticoids in the latter, as well as b) the ability of 11βHSD1 to generate active cortisol from inactive cortisone in a tissue-specific manner, it has been suggested that central obesity and the associated metabolic complications in syndrome X result from increased activity of 11βHSD1 within adipose tissue, resulting in 'Cushing's disease of the omentum' (Bujalska et al. (1997) Lancet 349: 1210-1213). Indeed, 11βHSD1 has been shown to be upregulated in adipose tissue of obese rodents and humans (Livingstone et al. (2000) Endocrinology 131: 560-563; Rask et al. (2001) J. Clin. Endocrinol. Metab. 86: 1418-1421; Lindsay et al. (2003) J. Clin. Endocrinol. Metab. 88: 2738-2744; Wake et al. (2003) J. Clin. Endocrinol. Metab. 88: 3983-3988).

Additional support for this notion has come from studies in mouse transgenic models. Adipose-specific overexpression of 11βHSD1 under the control of the aP2 promoter in mouse produces a phenotype remarkably reminiscent of human metabolic syndrome (Masuzaki et al. (2001) Science 294: 2166-2170; Masuzaki et al. (2003) J. Clinical Invest. 112: 83-90). Importantly, this phenotype occurs without an increase in total circulating corticosterone, but rather is driven by a local production of corticosterone within the adipose depots. The increased activity of 11βHSD1 in these mice (2-3 fold) is very similar to that observed in human obesity (Rask et al. (2001) J. Clin. Endocrinol. Metab. 86: 1418-1421). This suggests that local 11βHSD1-mediated conversion of inert glucocorticoid to active glucocorticoid can have profound influences whole body insulin sensitivity.

Based on this data, it would be predicted that the loss of 11βHSD1 would lead to an increase in insulin sensitivity and glucose tolerance due to a tissue-specific deficiency in active glucocorticoid levels. This is, in fact, the case as shown in studies with 11βHSD1-deficient mice produced by homologous recombination (Kotelevstev et al. (1997) Proc. Natl. Acad. Sci. 94: 14924-14929; Morton et al. (2001) J. Biol. Chem. 276: 41293-41300; Morton et al. (2004) Diabetes 53: 931-938). These mice are completely devoid of 11-keto reductase activity, confirming that 11βHSD1 encodes the only activity capable of generating active corticosterone from inert 11-dehydrocorticosterone. 11βHSD1-deficient mice are resistant to diet- and stress-induced hyperglycemia, exhibit attenuated induction of hepatic gluconeogenic enzymes (PEPCK, G6P), show increased insulin sensitivity within adipose, and have an improved lipid profile (decreased triglycerides and increased cardio-protective HDL). Additionally, these animals show resistance to high fat diet-induced obesity. Taken together, these transgenic mouse studies confirm a role for local reactivation of glucocorticoids in controlling hepatic and peripheral insulin sensitivity, and suggest that inhibition of 11βHSD1 activity may prove beneficial in treating a number of glucocorticoid-related disorders, including obesity, insulin resistance, hyperglycemia, and hyperlipidemia.

Data in support of this hypothesis has been published. Recently, it was reported that 11βHSD1 plays a role in the pathogenesis of central obesity and the appearance of the metabolic syndrome in humans. Increased expression of the 11βHSD1 gene is associated with metabolic abnormalities in obese women and that increased expression of this gene is suspected to contribute to the increased local conversion of cortisone to cortisol in adipose tissue of obese individuals (Engeli, et al., (2004) Obes. Res. 12: 9-17).

A new class of 11βHSD1 inhibitors, the arylsulfonamidothiazoles, was shown to improve hepatic insulin sensitivity and reduce blood glucose levels in hyperglycemic strains of mice (Barf et al. (2002) J. Med. Chem. 45: 3813-3815; Alberts et al. Endocrinology (2003) 144: 4755-4762). Furthermore, it was recently reported that selective inhibitors of 11βHSD1 can ameliorate severe hyperglycemia in genetically diabetic obese mice. Thus, 11βHSD1 is a promising pharmaceutical target for the treatment of the Metabolic Syndrome (Masuzaki, et al., (2003) Curr. Drug Targets Immune Endocr. Metabol. Disord. 3: 255-62).

A. Obesity and metabolic syndrome

As described above, multiple lines of evidence suggest that inhibition of 11βHSD1 activity can be effective in combating obesity and/or aspects of the metabolic syndrome cluster, including glucose intolerance, insulin resistance, hyperglycemia, hypertension, and/or hyperlipidemia. Glucocorticoids are known antagonists of insulin action, and reductions in local glucocorticoid levels by inhibition of intracellular cortisone to cortisol conversion should increase hepatic and/or peripheral insulin sensitivity and potentially reduce visceral adiposity. As described above, 11βHSD1 knockout mice are resistant to hyperglycemia, exhibit attenuated induction of key hepatic gluconeogenic enzymes, show markedly increased insulin sensitivity within adipose, and have an improved lipid profile. Additionally, these animals show resistance to high fat diet-induced obesity (Kotelevstev et al. (1997) Proc. Natl. Acad. Sci. 94: 14924-14929; Morton et al. (2001) J. Biol. Chem. 276: 41293-41300; Morton et al. (2004) Diabetes 53: 931-938). Thus, inhibition of 11βHSD1 is predicted to have multiple beneficial effects in the liver, adipose, and/or skeletal muscle, particularly related to alleviation of component(s) of the metabolic syndrome and/or obesity.

B. Pancreatic function

Glucocorticoids are known to inhibit the glucose-stimulated secretion of insulin from pancreatic beta-cells (Billaudel and Sutter (1979) Horm. Metab. Res. 11: 555-560). In both Cushing's syndrome and diabetic Zucker fa/fa rats, glucose-stimulated insulin secretion is markedly reduced (Ogawa et al. (1992) J. Clin. Invest. 90: 497-504). 11βHSD1 mRNA and activity has been reported in the pancreatic islet cells of ob/ob mice and inhibition of this activity with carbenoxolone, an 11βHSD1 inhibitor, improves glucose-stimulated insulin release (Davani et al. (2000) J. Biol. Chem. 275: 34841-34844). Thus, inhibition of 11βHSD1 is predicted to have beneficial effects on the pancreas, including the enhancement of glucose-stimulated insulin release.

C. Cognition and dementia

Mild cognitive impairment is a common feature of aging that may be ultimately related to the progression of dementia. In both aged animals and humans, inter-individual differences in general cognitive function have been linked to variability in the long-term exposure to glucocorticoids (Lupien et al. (1998) Nat. Neurosci. 1: 69-73). Further, dysregulation of the HPA axis resulting in chronic exposure to glucocorticoid excess in certain brain subregions has been proposed to contribute to the decline of cognitive function (McEwen and Sapolsky (1995) Curr. Opin. Neurobiol. 5: 205-216). 11βHSD1 is abundant in the brain, and is expressed in multiple subregions including the hippocampus, frontal cortex, and cerebellum (Sandeep et al. (2004) Proc. Natl. Acad. Sci. Early Edition: 1-6). Treatment of primary hippocampal cells with the 11βHSD1 inhibitor carbenoxolone protects the cells from glucocorticoid-mediated exacerbation of excitatory amino acid neurotoxicity (Rajan et al. (1996) J. Neurosci. 16: 65-70). Additionally, 11βHSD1-deficient mice are protected from glucocorticoid-associated hippocampal dysfunction that is associated with aging (Yau et al. (2001) Proc. Natl. Acad. Sci. 98: 4716-4721). In two randomized, double-blind, placebo-controlled crossover studies, administration of carbenoxolone improved verbal fluency and verbal memory (Sandeep et al. (2004) Proc. Natl. Acad. Sci. Early Edition: 1-6). Thus, inhibition of 11βHSD1 is predicted to reduce exposure to glucocorticoids in the brain and protect against deleterious glucocorticoid effects on neuronal function, including cognitive impairment, dementia, and/or depression.

D. Intra-ocular pressure

Glucocorticoids can be used topically and systemically for a wide range of conditions in clinical ophthalmology. One particular complication with these treatment regimens is corticosteroid-induced glaucoma. This pathology is characterized by a significant increase in intra-ocular pressure (IOP). In its most advanced and untreated form, IOP can lead to partial visual field loss and eventually blindness. IOP is produced by the relationship between aqueous humour production and drainage. Aqueous humour production occurs in the non-pigmented epithelial cells (NPE) and its drainage is through the cells of the trabecular meshwork. 11βHSD1 has been localized to NPE cells (Stokes et al. (2000) Invest. Ophthalmol. Vis. Sci. 41: 1629-1683; Rauz et al. (2001) Invest. Ophthalmol. Vis. Sci. 42: 2037-2042) and its function is likely relevant to the amplification of glucocorticoid activity within these cells. This notion has been confirmed by the observation that free cortisol concentration greatly exceeds that of cortisone in the aqueous humour (14:1 ratio). The functional significance of 11βHSD1 in the eye has been evaluated using the inhibitor carbenoxolone in healthy volunteers (Rauz et al. (2001) Invest. Ophthalmol. Vis. Sci. 42: 2037-2042). After seven days of carbenoxolone treatment, IOP was reduced by 18%. Thus, inhibition of 11βHSD1 in the eye is predicted to reduce local glucocorticoid concentrations and IOP, producing beneficial effects in the management of glaucoma and other visual disorders.

E. Hypertension

Adipocyte-derived hypertensive substances such as leptin and angiotensinogen have been proposed to be involved in the pathogenesis of obesity-related hypertension (Matsuzawa et al. (1999) Ann. N.Y. Acad. Sci. 892: 146-154; Wajchenberg (2000) Endocr. Rev. 21: 697-738). Leptin, which is secreted in excess in aP2-11βHSD1 transgenic mice (Masuzaki et al. (2003) J. Clinical Invest. 112: 83-90), can activate various sympathetic nervous system pathways, including those that regulate blood pressure (Matsuzawa et al. (1999) Ann. N.Y. Acad. Sci. 892: 146-154). Additionally, the renin-angiotensin system (RAS) has been shown to be a major determinant of blood pressure (Walker et al. (1979) Hypertension 1: 287-291). Angiotensinogen, which is produced in liver and adipose tissue, is the key substrate for renin and drives RAS activation. Plasma angiotensinogen levels are markedly elevated in aP2-11βHSD1 transgenic mice, as are angiotensin II and aldosterone (Masuzaki et al. (2003) J. Clinical Invest. 112: 83-90). These forces likely drive the elevated blood pressure observed in aP2-11βHSD1 transgenic mice. Treatment of these mice with low doses of an angiotensin II receptor antagonist abolishes this hypertension (Masuzaki et al. (2003) J. Clinical Invest. 112: 83-90). This data illustrates the importance of local glucocorticoid reactivation in adipose tissue and liver, and suggests that hypertension may be caused or exacerbated by 11βHSD1 activity. Thus, inhibition of 11βHSD1 and reduction in adipose and/or hepatic glucocorticoid levels is predicted to have beneficial effects on hypertension and hypertension-related cardiovascular disorders.

F. Bone disease

Glucocorticoids can have adverse effects on skeletal tissues. Continued exposure to even moderate glucocorticoid doses can result in osteoporosis (Cannalis (1996) J. Clin. Endocrinol. Metab. 81: 3441-3447) and increased risk for fractures. Experiments in vitro confirm the deleterious effects of glucocorticoids on both bone-resorbing cells (also known as osteoclasts) and bone forming cells (osteoblasts). 11βHSD1 has been shown to be present in cultures of human primary osteoblasts as well as cells from adult bone, likely a mixture of osteoclasts and osteoblasts (Cooper et al. (2000) Bone 27: 375-381), and the 11βHSD1 inhibitor carbenoxolone has been shown to attenuate the negative effects of glucocorticoids on bone nodule formation (Bellows et al. (1998) Bone 23: 119-125). Thus, inhibition of 11βHSD1 is predicted to decrease the local glucocorticoid concentration within osteoblasts and osteoclasts, producing beneficial effects in various forms of bone disease, including osteoporosis.

Small molecule inhibitors of 11βHSD1 are currently being developed to treat or prevent 11βHSD1-related diseases such as those described above. For example, certain amide-based inhibitors are reported in WO 2004/089470 , WO 2004/089896 , WO 2004/056745 , and WO 2004/065351 .

Antagonists of 11βHSD1 have been evaluated in human clinical trials (Kurukulasuriya, et al., (2003) Curr. Med. Chem. 10: 123-53).

In light of the experimental data indicating a role for 11βHSD1 in glucocorticoid-related disorders, metabolic syndrome, hypertension, obesity, insulin resistance, hyperglycemia, hyperlipidemia, type 2 diabetes, androgen excess (hirsutism, menstrual irregularity, hyperandrogenism) and polycystic ovary syndrome (PCOS), therapeutic agents aimed at augmentation or suppression of these metabolic pathways, by modulating glucocorticoid signal transduction at the level of 11βHSD1 are desirable.

Furthermore, because the MR binds to aldosterone (its natural ligand) and cortisol with equal affinities, compounds that are designed to interact with the active site of 11βHSD1 (which binds to cortisone/cortisol) may also interact with the MR and act as antagonists. Because the MR is implicated in heart failure, hypertension, and related pathologies including atherosclerosis, arteriosclerosis, coronary artery disease, thrombosis, angina, peripheral vascular disease, vascular wall damage, and stroke, MR antagonists are desirable and may also be useful in treating complex cardiovascular, renal, and inflammatory pathologies including disorders of lipid metabolism including dyslipidemia or hyperlipoproteinaemia, diabetic dyslipidemia, mixed dyslipidemia, hypercholesterolemia, hypertriglyceridemia, as well as those associated with type 1 diabetes, type 2 diabetes, obesity, metabolic syndrome, and insulin resistance, and general aldosterone-related target-organ damage.

As evidenced herein, there is a continuing need for new and improved drugs that target 11βHSD1 and/or MR. The compounds, compositions and methods described herein help meet this and other needs.

SUMMARY OF THE INVENTION

The present invention provides, inter alia, compounds of Formula I: or pharmaceutically acceptable salts thereof, wherein constituent members are defined in the claims.

The present invention further provides compositions comprising compounds of the invention and a pharmaceutically acceptable carrier.

The present invention further provides a compound of the invention for use in medicine.

The present invention further provides a compound of the invention for use in the treatment of a disease associated with expression or activity of 11βHSD1 or MR as defined in the claims.

The present invention further provides a compound or composition for use in the preparation of a medicament for the treatment of a disease associated with expression or activity of 11βHSD1 or MR as defined in the claims.

DETAILED DESCRIPTION

The present invention provides compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein:

Cy is aryl or heteroaryl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z;
each -W-X-Y-Z is, independently, halo, CN, NO2, C1-4 alkoxy, heteroaryloxy, C2-6 alkynyl, C1-4 haloalkoxy, NRcC(O)Rd NRcC(O)ORa, C(O)NRcRd, NRcRd, NReS(O)2Rb, C1-4 haloalkyl, C1-6 alkyl, heterocycloalkyl, aryl or heteroaryl, wherein each of said C1-6 alkyl, aryl or heteroaryl is optionally substituted by 1, 2 or 3 halo, C1-6 alkyl, C1-4 haloalkyl, CN, NO2, ORa, SRa, C(O)NRcRd, NRcC(O)Rd or COORa;
L is (CR12R13)q1, and q1 is 0;
Q is cyclohexyl substituted at the 4-position with at least one -W'-X'-Y'-Z';
each -W'-X'-Y'-Z' is, independently, OH, C1-4 alkoxy, CN, C1-4 alkyl, -O-heteroaryl,-(C1-4 alkyl)-CN, COORa, C(O)NRcRd or NRcC(O)ORa;
E is ethylene;
R4, R5, R6, R7, R8, R9, R10 and R11 are each H;
R12 and R13 are each, independently, H, halo, C1-4 alkyl, C1-4 haloalkyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, CN, NO2, ORa, SRa , C(O)Rb', C(O)NRc'Rd', C(O)ORa', OC(O)Rb', OC(O)NRc'Rd', NRc'Rd', NRcC(O)Rd', NRcC(O)ORa', S(O)Rb', S(O)NRc'Rd', S(O)2Rb', or S(O)2NRc'Rd'; Ra and Ra' are each, independently, H, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl, wherein said C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl is optionally substituted with H, OH, amino, halo, C1-6 alkyl, C1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl; Rb, and Rb' are each, independently, H, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl; Rc and Rd are each, independently, H, C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl;
or Rc and Rd together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group; Rc' and Rd' are each, independently, H, C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl;
or Rc' and Rd' together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group;
Re is H, C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl; and
r is 1.

In some embodiments, Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl, thiazolyl, pyrazinyl, purinyl, quinazolinyl, quinolinyl, isoquinolinyl, pyrrolo[2,3-d]pyrimidinyl, or 1,3-benzothiazolyl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z.

In some embodiments, Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl or thienyl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z.

In some embodiments, Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl, thiazolyl, pyrazinyl, purinyl, quinazolinyl, quinolinyl, isoquinolinyl, pyrrolo[2,3-d]pyrimidinyl, or 1,3-benzothiazolyl, each optionally substituted with 1, 2, 3 or 4 halo, CN, NO₂, C_1-4 alkoxy, heteroaryloxy, C_2-6 alkynyl, C_1-4 haloalkoxy, NR^cC(O)R^d, NR^cC(O)OR^a, C(O)NR^cR^d, NR^cR^d, NR^eS(O)₂R^b, C_1-4 haloalkyl, C_1-6 alkyl, heterocycloalkyl, aryl or heteraryl, wherein each of said C_1-6 alkyl, aryl or heteraryl is optionally substituted by 1, 2 or 3 halo, C_1-6 alkyl, C_1-4 haloalkyl, CN, NO₂, OR^a, SR^a, C(O)NR^cR^d, NR^cC(O)R^d or COOR^a.

In some embodiments, Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl, thienyl, thiazolyl, pyrazinyl, purinyl, quinazolinyl, quinolinyl, isoquinolinyl, pyrrolo[2,3-d]pyrimidinyl, or 1,3-benzothiazolyl, each optionally substituted with 1, 2, 3 or 4 substituents independently selected from:

halo, CN, NO2, C1-4 alkoxy, pyridin-2-yloxy, pyridin-3-yloxy, pyridin-4-yloxy, C2-6 alkynyl, C1-4 haloalkoxy, NRcC(O)Rd, NRcC(O)ORa, C(O)NRcRd, NRcRd, NReS(O)2Rb, C1-4 haloalkyl, C1-6 alkyl, phenyl, pyridyl, pyrimidinyl, isoxazolyl, pyrazolyl, 1,2,3,6-tetrahydro-pyridinyl, 2-oxo-(2H)-pyridinyl, 2-oxo-[1,3]oxazolidinyl, 2-oxo-pyrrolidinyl, pyrrolidinyl, 2-oxopiperidinyl, and 2-oxo-[1,3]oxazinanyl; wherein each of said C1-6 alkyl, phenyl, pyridyl, pyrimidinyl, isoxazolyl, pyrazolyl, 1,2,3,6-tetrahydro-pyridinyl, 2-oxo-(2H)-pyridinyl, 2-oxo-[1,3]oxazolidinyl, 2-oxo-pyrrolidinyl, pyrrolidinyl, 2-oxopiperidinyl, or 2-oxo-[1,3]oxazinanyl is optionally substituted by 1, 2 or 3 halo, C1-6 alkyl, C1-4 haloalkyl, CN, NO2, ORa, SRa, C(O)NRcRd, NRcC(O)Rd or COORa.

In some embodiments, Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl or thienyl, each optionally substituted with 1, 2, or 3 halo, CN, C_1-4 alkoxy, C_1-4 haloalkoxy, C_1-6 alkyl or aryl, wherein said C_1-6 alkyl or aryl is optionally substituted by 1, 2 or 3 halo, C_1-6 alkyl, C_1-4 haloalkyl, CN, NO₂, OR^a, or SR^a.

In some embodiments, Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl or thienyl, each optionally substituted with 1, 2, or 3 halo, CN, C_1-4alkoxy, C_1-4 haloalkoxy, C_1-6 alkyl or aryl, wherein said C_1-6 alkyl or aryl is optionally substituted by 1, 2 or 3 halo or C_1-6 alkyl.

In some embodiments, Cy is phenyl, pyridyl, pyrimidinyl, quinolinyl, or isoquinolinyl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z.

In some embodiments, Cy is phenyl, pyridyl, pyrimidinyl, quinolinyl, or isoquinolinyl, each optionally substituted with 1, 2, or 3 halo, CN, Alkyl, C_1-6 haloalkyl, C_1-6 alkoxy,, -NR^eC(O)O-Z, -C(O)O-Z, or NR^eC(O)-Z.

In certain embodiments of the invention, the compound may be selected from:

7-(4-Fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4,5]decan-1-one;
7-(3-Fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-phenyl-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;
6-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile;
2-(trans-4-Hydroxycyclohexyl)-7-(6-methoxypyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-(6-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-(5-methylpyridin-2-yl)-2,7-diazaspiro[ [4.5] decan-1 -one;
7-(5-Fluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-[6-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;
(5S)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;
(5R)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;
7-(6-Fluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-(3-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-(4-methoxypyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-pyridin-2-yl-2,7 -diazaspiro [4.5]decan-1-one;
7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile;
2-(trans-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]decan-1-one;
3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile;
Isopropyl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl carbamate;
Prop-2-yn-1-yl {d-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl carbamate;
Methyl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl] phenyl carbamate;
N-{4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro [4.5]dec-7-yl]phenyl acetamide;
N-{4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide;
Isopropyl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;
Prop-2-yn-1-yl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;
Methyl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;
N-{3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide;
7-(4-Chloropyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;
2-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile
7-(5-Chloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
7-(3,5-Dichloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one
2-(trans-4-Hydroxycyclohexyl)-7-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5] decan-1-one;
Methyl 6-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinate;
2-(trans-4-Hydroxycyclohexyl)-7-isoquinolin-1-yl-2,7-diazaspiro[4.5]decan-1-one;
2-(trans-4-Hydroxycyclohexyl)-7-quinolin-2-yl-2,7-diazaspiro[4.5]decan-1-one;
N-{3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl] phenyl acetamide;
4-{1-Oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexanecarbonitrile;
4-{1-Oxo-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexanecarbonitrile;
4-{7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-oxo-2,7-diazaspiro[4.5]dec-2-yl}cyclohexanecarbonitrile;
4-[7-(3,5-Dichloropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexanecarbonitrile;
4-[7-(6-Fluoropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexanecarbonitrile;
(trans-4-{1-Oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexyl)acetonitrile;
(trans-4-{1-Oxo-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]dec-2-yl }cyclohexyl)acetonitrile;
(trans-4-{7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-oxo-2,7-diazaspiro[4.5]dec-2-yl }cyclohexyl)acetonitrile;
{trans-4-[7-(3,5-Dichloropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl} acetonitrile;;
{trans-4-[7-(6-Fluoropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl}acetonitrile;
7-(2-fluoro-4-nitrophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
2-{trans-4-Hydroxycyclohexyl}-7-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro [4.5] decan-1 -one;
7-(5-Ethylpyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
7-(2-Chloropyrimidin-4-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;
6-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N,N-dimethylnicotinamide;

or a pharmaceutically acceptable salt thereof.

At various places in the present specification, substituents of compounds of the invention are disclosed in groups or in ranges. It is specifically intended that the invention include each and every individual subcombination of the members of such groups and ranges. For example, the term "C_1-6 alkyl" is specifically intended to individually disclose methyl, ethyl, C₃ alkyl, C₄ alkyl, C₅ alkyl, and C₆ alkyl.

It is further appreciated that certain features, which are, for clarity, described in the context of separate embodiments, can also be provided in combination in a single embodiment. Conversely, various features which are, for brevity, described in the context of a single embodiment, can also be provided separately or in any suitable subcombination.

The term "n-membered" where n is an integer typically describes the number of ring-forming atoms in a moiety where the number of ring-forming atoms is n. For example, piperidinyl is an example of a 6-membered heterocycloalkyl ring and 1,2,3,4-tetrahydro-naphthalene is an example of a 10-membered cycloalkyl group.

As used herein, the term "alkyl" is meant to refer to a saturated hydrocarbon group which is straight-chained or branched. Example alkyl groups include methyl (Me), ethyl (Et), propyl (e.g., n-propyl and isopropyl), butyl (e.g., n-butyl, isobutyl, t-butyl), pentyl (e.g., n-pentyl, isopentyl, neopentyl), and the like. An alkyl group can contain from 1 to about 20, from 2 to about 20, from 1 to about 10, from 1 to about 8, from 1 to about 6, from 1 to about 4, or from 1 to about 3 carbon atoms. The term "alkylenyl" refers to a divalent alkyl linking group.

As used herein, "alkenyl" refers to an alkyl group having one or more double carbon-carbon bonds. Example alkenyl groups include ethenyl, propenyl, cyclohexenyl, and the like. The term "alkenylenyl" refers to a divalent linking alkenyl group.

As used herein, "alkynyl" refers to an alkyl group having one or more triple carbon-carbon bonds. Example alkynyl groups include ethynyl, propynyl, and the like. The term "alkynylenyl" refers to a divalent linking alkynyl group.

As used herein, "haloalkyl" refers to an alkyl group having one or more halogen substituents. Example haloalkyl groups include CF₃, C₂F₅, CHF₂, CCl₃, CHCl₂, C₂Cl₅, and the like.

As used herein, "aryl" refers to monocyclic or polycyclic (e.g., having 2, 3 or 4 fused rings) aromatic hydrocarbons such as, for example, phenyl, naphthyl, anthracenyl, phenanthrenyl, indanyl, indenyl, and the like. In some embodiments, aryl groups have from 6 to about 20 carbon atoms.

As used herein, "cycloalkyl" refers to non-aromatic cyclic hydrocarbons including cyclized alkyl, alkenyl, and alkynyl groups. Cycloalkyl groups can include mono- or polycyclic (e.g., having 2, 3 or 4 fused rings) groups. Ring-forming carbon atoms of a cycloalkyl group can be optionally substituted by oxo or sulfido. Example cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, cyclohexadienyl, cycloheptatrienyl, norbornyl, norpinyl, norcarnyl, adamantyl, and the like. Also included in the definition of cycloalkyl are moieties that have one or more aromatic rings fused (i.e., having a bond in common with) to the cycloalkyl ring, for example, benzo or thienyl derivatives of pentane, pentene, hexane, and the like.

As used herein, "heteroaryl" refers to an aromatic heterocycle having at least one heteroatom ring member such as sulfur, oxygen, or nitrogen. Heteroaryl groups include monocyclic and polycyclic (e.g., having 2, 3 or 4 fused rings) systems. Examples of heteroaryl groups include without limitation, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, furyl, quinolyl, isoquinolyl, thienyl, imidazolyl, thiazolyl, indolyl, pyrryl, oxazolyl, benzofuryl, benzothienyl, benzthiazolyl, isoxazolyl, pyrazolyl, triazolyl, tetrazolyl, indazolyl, 1,2,4-thiadiazolyl, isothiazolyl, benzothienyl, purinyl, carbazolyl, benzimidazolyl, indolinyl, and the like. In some embodiments, the heteroaryl group has from 1 to about 20 carbon atoms, and in further embodiments from about 3 to about 20 carbon atoms. In some embodiments, the heteroaryl group contains 3 to about 14, 4 to about 14, 3 to about 7, or 5 to 6 ring-forming atoms. In some embodiments, the heteroaryl group has 1 to about 4, 1 to about 3, or 1 to 2 heteroatoms.

As used herein, "heterocycloalkyl" refers to non-aromatic heterocycles including cyclized alkyl, alkenyl, and alkynyl groups where one or more of the ring-forming carbon atoms is replaced by a heteroatom such as an O, N, or S atom. Heterocycloalkyl groups include monocyclic and polycyclic (e.g., having 2, 3 or 4 fused rings) systems. Example "heterocycloalkyl" groups include morpholino, thiomorpholino, piperazinyl, tetrahydrofuranyl, tetrahydrothienyl, 2,3-dihydrobenzofuryl, 1,3-benzodioxole, benzo-1,4-dioxane, piperidinyl, pyrrolidinyl, isoxazolidinyl, isothiazolidinyl, pyrazolidinyl, oxazolidinyl, thiazolidinyl, imidazolidinyl, and the like. Ring-forming carbon atoms and heteroatoms of a heterocycloalkyl group can be optionally substituted by oxo or sulfido. Also included in the definition of heterocycloalkyl are moieties that have one or more aromatic rings fused (i.e., having a bond in common with) to the nonaromatic heterocyclic ring, for example phthalimidyl, naphthalimidyl, and benzo derivatives of heterocycles such as indolene and isoindolene groups. In some embodiments, the heterocycloalkyl group has from 1 to about 20 carbon atoms, and in further embodiments from about 3 to about 20 carbon atoms. In some embodiments, the heterocycloalkyl group contains 3 to about 14, 4 to about 14, 3 to about 7, or 5 to 6 ring-forming atoms. In some embodiments, the heterocycloalkyl group has 1 to about 4, 1 to about 3, or 1 to 2 heteroatoms. In some embodiments, the heterocycloalkyl group contains 0 to 3 double or triple bonds. In some embodiments, the heterocycloalkyl group contains 0 to 2 double or triple bonds.

As used herein, "halo" or "halogen" includes fluoro, chloro, bromo, and iodo.

As used herein, "alkoxy" refers to an -O-alkyl group. Example alkoxy groups include methoxy, ethoxy, propoxy (e.g., n-propoxy and isopropoxy), t-butoxy, and the like.

As used here, "haloalkoxy" refers to an -O-haloalkyl group. An example haloalkoxy group is OCF₃.

As used herein, "heteroaryloxy" refers to -O-heteroaryl. An example heteroaryloxy is pyridine-2-yloxy [i.e., -O-(pyridine-2-yl)].

As used herein, "arylalkyl" refers to alkyl substituted by aryl and "cycloalkylalkyl" refers to alkyl substituted by cycloalkyl. An example arylalkyl group is benzyl.

As used herein, "amino" refers to NH₂.

As used herein, "alkylamino" refers to an amino group substituted by an alkyl group.

As used herein, "dialkylamino" refers to an amino group substituted by two alkyl groups.

The compounds described herein can be asymmetric (e.g., having one or more stereocenters). All stereoisomers, such as enantiomers and diastereomers, are intended unless otherwise indicated. Compounds of the present invention that contain asymmetrically substituted carbon atoms can be isolated in optically active or racemic forms. Methods on how to prepare optically active forms from optically active starting materials are known in the art, such as by resolution of racemic mixtures or by stereoselective synthesis. Many geometric isomers of olefins, C=N double bonds, and the like can also be present in the compounds described herein, and all such stable isomers are contemplated in the present invention. Cis and trans geometric isomers of the compounds of the present invention are described and may be isolated as a mixture of isomers or as separated isomeric forms.

Resolution of racemic mixtures of compounds can be carried out by any of numerous methods known in the art. An example method includes fractional recrystallizaion using a chiral resolving acid which is an optically active, salt-forming organic acid. Suitable resolving agents for fractional recrystallization methods are, for example, optically active acids, such as the D and L forms of tartaric acid, diacetyltartaric acid, dibenzoyltartaric acid, mandelic acid, malic acid, lactic acid or the various optically active camphorsulfonic acids such as β-camphorsulfonic acid. Other resolving agents suitable for fractional crystallization methods include stereoisomerically pure forms of α-methylbenzylamine (e.g., S and R forms, or diastereomerically pure forms), 2-phenylglycinol, norephedrine, ephedrine, N-methylephedrine, cyclohexylethylamine, 1,2-diaminocyclohexane, and the like.

Resolution of racemic mixtures can also be carried out by elution on a column packed with an optically active resolving agent (e.g., dinitrobenzoylphenylglycine). Suitable elution solvent composition can be determined by one skilled in the art.

Compounds of the invention also include tautomeric forms, such as keto-enol tautomers.

Compounds of the invention further include hydrates and solvates, as well as anyhydrous and non-solvated forms.

Compounds of the invention can also include all isotopes of atoms occurring in the intermediates or final compounds. Isotopes include those atoms having the same atomic number but different mass numbers. For example, isotopes of hydrogen include tritium and deuterium.

The phrase "pharmaceutically acceptable" is employed herein to refer to those compounds, materials, compositions, and/or dosage forms which are, within the scope of sound medical judgement, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit/risk ratio.

The present invention also includes pharmaceutically acceptable salts of the compounds as defined in the claims. As used herein, "pharmaceutically acceptable salts" refers to derivatives of the disclosed compounds wherein the parent compound is modified by converting an existing acid or base moiety to its salt form. Examples of pharmaceutically acceptable salts include, but are not limited to, mineral or organic acid salts of basic residues such as amines; alkali or organic salts of acidic residues such as carboxylic acids; and the like. The pharmaceutically acceptable salts of the present invention include the conventional non-toxic salts or the quaternary ammonium salts of the parent compound formed, for example, from non-toxic inorganic or organic acids. The pharmaceutically acceptable salts of the present invention can be synthesized from the parent compound which contains a basic or acidic moiety by conventional chemical methods. Generally, such salts can be prepared by reacting the free acid or base forms of these compounds with a stoichiometric amount of the appropriate base or acid in water or in an organic solvent, or in a mixture of the two; generally, nonaqueous media like ether, ethyl acetate, ethanol, isopropanol, or acetonitrile are preferred. Lists of suitable salts are found in Remington's Pharmaceutical Science, 17th ed., Mack Publishing Company, Easton, Pa., 1985, p. 1418 and Journal of Pharmaceutical Science, 66, 2 (1977).

As used herein, "prodrugs" refer to any covalently bonded carriers which release the active parent drug when administered to a mammalian subject. Prodrugs can be prepared by modifying functional groups present in the compounds in such a way that the modifications are cleaved, either in routine manipulation or in vivo, to the parent compounds. Prodrugs include compounds wherein hydroxyl, amino, sulfhydryl, or carboxyl groups are bonded to any group that, when administered to a mammalian subject, cleaves to form a free hydroxyl, amino, sulfhydryl, or carboxyl group respectively. Examples of prodrugs include, but are not limited to, acetate, formate and benzoate derivatives of alcohol and amine functional groups in the compounds of the invention. Preparation and use of prodrugs is discussed in T. Higuchi and V. Stella, "Pro-drugs as Novel Delivery Systems," Vol. 14 of the A.C.S. Symposium Series, and in Bioreversible Carriers in Drug Design, ed. Edward B. Roche, American Pharmaceutical Association and Pergamon Press, 1987.

Synthesis

The novel compounds of the present invention as defined in the claims can be prepared in a variety of ways known to one skilled in the art of organic synthesis. The compounds of the present invention as defined in the claims can be synthesized using the methods as hereinafter described below, together with synthetic methods known in the art of synthetic organic chemistry or variations thereon as appreciated by those skilled in the art.

The compounds of this invention as defined in the claims can be prepared from readily available starting materials using the following general methods and procedures. It will be appreciated that where typical or preferred process conditions (i.e., reaction temperatures, times, mole ratios of reactants, solvents, pressures, etc.) are given; other process conditions can also be used unless otherwise stated. Optimum reaction conditions may vary with the particular reactants or solvent used, but such conditions can be determined by one skilled in the art by routine optimization procedures.

The processes described herein can be monitored according to any suitable method known in the art. For example, product formation can be monitored by spectroscopic means, such as nuclear magnetic resonance spectroscopy (e.g., ¹H or ¹³C) infrared spectroscopy, spectrophotometry (e.g., UV-visible), or mass spectrometry, or by chromatography such as high performance liquid chromatograpy (HPLC) or thin layer chromatography.

Preparation of compounds can involve the protection and deprotection of various chemical groups. The need for protection and deprotection, and the selection of appropriate protecting groups can be readily determined by one skilled in the art. The chemistry of protecting groups can be found, for example, in Greene, et al., Protective Groups in Organic Synthesis, 2d. Ed., Wiley & Sons, 1991.

The reactions of the processes described herein can be carried out in suitable solvents which can be readily selected by one of skill in the art of organic synthesis. Suitable solvents can be substantially nonreactive with the starting materials (reactants), the intermediates, or products at the temperatures at which the reactions are carried out, i.e., temperatures which can range from the solvent's freezing temperature to the solvent's boiling temperature. A given reaction can be carried out in one solvent or a mixture of more than one solvent. Depending on the particular reaction step, suitable solvents for a particular reaction step can be selected.

The compounds of the invention can be prepared, for example, using the reaction pathways and techniques described below.

Compounds of the invention can be generally prepared by the method outlined in Schemes 1, 2 and 3. Schemes 4, 5 and 6 are present for reference. Reagents of formula 1-1 (X is a leaving group such as halo) can be reacted with an amines of formula 1-2 (or its salts) in an appropriate solvent (e.g., CH₂Cl₂) and optionally in the presence of a base such as diisopropyl ethyl amine to provide the desired products 1-3. As a reference example, sulfonyl chlorides of formula 1-4 can be reacted with the amines of formula 1-2 to provide sulfonyl linked compounds of formula 1-5.

A series of spirocyclyl amines of formula 2-8 can be prepared according to the procedure outlined in Scheme 2. N-protected 2-1 (Pr is an amino protecting group such as Boc) can be treated with a base such as LDA at low temperature in a solvent such as tetrahydrofuran followed by addition of 1-bromo-3-methyl-2-butene (2-2). The resulting intermediate (2-3) can be treated with ozone and then reduced with methyl sulfide to provide the aldehyde 2-4. Reductive amination of 2-4 with amines 2-5 can be conducted in a solvent such as methanol and using a reducing agent such as sodium triacetoxyborohydride, and the product 2-6 can be cyclized in the presence of a base such as isopropylmagnesium bromide to provide the lactam 2-7 which upon acidic cleavage of the Boc group yields the desired amine 2-8.

A series of amines of formula 3-7 can be prepared according to the procedure outlined in Scheme 3. Treatment of Boc protected nipecotic ethyl ester 3-1 with a base such as LDA at low temperature in a solvent such as tetrahydrofuran followed by addition of 1-bromo-3-methyl-2-butene can result in an intermediate 3-2, which can be treated with ozone followed by reduction with methyl sulfide to provide the aldehyde 3-3. Reductive amination of 3-3 with amines 3-4 (where Q₁ is, e.g., substituted or unsubstituted cycloalkyl or aryl) can be conducted in a solvent such as methanol and using a reducing agent such as sodium triacetoxyborohydride. The resulting intermediate 3-5 can be cyclized in the presence of a base such as isopropylmagnesium bromide to provide the lactam 3-6 which upon acidic cleavage of the Boc group yields the desired piperidine 3-7.

A series of piperdines of 4-4 can be prepared by the method outlined in Reference Scheme 4. Compound 4-1 can be readily converted to the spirohydantoin 4-2 under Bucherer-Bergs conditions, using, e.g., ammonium carbonate and either sodium cyanide or potassium cyanide in aqueous ethanol. Alkylation of compound 4-2 with one equivalent of alkyl halide QX (X is a leaving group such as halo) in the presence of potassium carbonate in DMF, followed by a second alkylation with R^3cX (X is a leaving group such as halo) in the presence of sodium hydride in DMF provides substituted hydantoins 4-3, which upon acidic cleavage of the Boc group yields the desired piperidines 4-4.

Alternatively, treatment of compound 5-1 with alkyl amines R^3cNH₂ and sodium cyanide can provide alkylated hydantoin derivatives 5-2. Aromatic substituted hydantoins 5-4 can be obtained by coupling compounds 5-2 with aromatic boronic acids or aromatic halides 5-3 in the presence of catalyst. Acidic cleavage of the Boc group yields the desired piperidines 5-4 (Reference Scheme 5).

In a further alternative route, piperdines 6-6 can also be prepared by the method outlined in Reference Scheme 6. The protected amino acid 6-1 can be coupled with an amine Q-NH₂ using a coupling agent such as BOP to provide compound 6-2 which, in turn, can be hydrogenated at the presence of Pd catalyst to yield compound 6-3. Compound 6-3 can be treated with methyl chloroformate and a base such as triethyl amine in CH₂Cl₂ to complete the ring closure and form hydantoin 6-4. As described previously, N alkylation with R^3cX (X is a leaving group such as halo) can yield compounds of formula 6-5 and acid cleavage can yield compounds of formula 6-6.

Uses

Compounds of the invention as defined in the claims can be used in medicine.

The present invention further provides methods of a compound of the invention or a pharmaceutically acceptable salt thereof for treating a disease wherein said disease is obesity, diabetes, glucose intolerance, insulin resistance, hyperglycemia, hypertension, hyperlipidemia, cognitive impairment, dementia, depression (e.g., psychotic depression), glaucoma, cardiovascular disorders, osteoporosis, inflammation, renal disease, heart failure, atherosclerosis, arteriosclerosis, coronary artery disease, thrombosis, angina, peripheral vascular disease, vascular wall damage, stroke, dyslipidemia, hyperlipoproteinaemia, diabetic dyslipidemia, mixed dyslipidemia, hypercholesterolemia, hypertriglyceridemia, metabolic syndrome, or general aldosterone-related target organ damage.

The invention also provides the use of compounds as defined in the claims in the manufacture of a medicament for treating a disease as defined above.

In one embodiment of the invention, the invention may be a compound as defined above or a pharmaceutically acceptable salt thereof, for treating type 2 diabetes.

The invention also extends to the use of a compound as defined above, or a pharmaceutically acceptable salt thereof, in the manufacture of a medicament for treating type 2 diabetes.

As used herein, the term "cell" is meant to refer to a cell that is in vitro, ex vivo or in vivo. In some embodiments, an ex vivo cell can be part of a tissue sample excised from an organism such as a mammal. In some embodiments, an in vitro cell can be a cell in a cell culture. In some embodiments, an in vivo cell is a cell living in an organism such as a mammal. In some embodiments, the cell is an adipocyte, a pancreatic cell, a hepatocyte, neuron, or cell comprising the eye.

As used herein, the term "contacting" refers to the bringing together of indicated moieties in an in vitro system or an in vivo system. For example, "contacting" the 11βHSD1 enzyme with a compound of the invention includes the administration of a compound of the present invention to an individual or patient, such as a human, having 11βHSD1, as well as, for example, introducing a compound of the invention into a sample containing a cellular or purified preparation containing the 11βHSD1 enzyme.

As used herein, the term "individual" or "patient," used interchangeably, refers to any animal, including mammals, preferably mice, rats, other rodents, rabbits, dogs, cats, swine, cattle, sheep, horses, or primates, and most preferably humans.

As used herein, the phrase "therapeutically effective amount" refers to the amount of active compound or pharmaceutical agent that elicits the biological or medicinal response that is being sought in a tissue, system, animal, individual or human by a researcher, veterinarian, medical doctor or other clinician, which includes one or more of the following:

(1) preventing the disease; for example, preventing a disease, condition or disorder in an individual who may be predisposed to the disease, condition or disorder but does not yet experience or display the pathology or symptomatology of the disease;
(2) inhibiting the disease; for example, inhibiting a disease, condition or disorder in an individual who is experiencing or displaying the pathology or symptomatology of the disease, condition or disorder (i.e., arresting further development of the pathology and/or symptomatology); and
(3) ameliorating the disease; for example, ameliorating a disease, condition or disorder in an individual who is experiencing or displaying the pathology or symptomatology of the disease, condition or disorder (i.e., reversing the pathology and/or symptomatology).

Pharmaceutical Formulations and Dosage Forms

When employed as pharmaceuticals, the compounds of Formula I can be administered in the form of pharmaceutical compositions. These compositions can be prepared in a manner well known in the pharmaceutical art, and can be administered by a variety of routes, depending upon whether local or systemic treatment is desired and upon the area to be treated. Administration may be topical (including ophthalmic and to mucous membranes including intranasal, vaginal and rectal delivery), pulmonary (e.g., by inhalation or insufflation of powders or aerosols, including by nebulizer; intratracheal, intranasal, epidermal and transdermal), ocular, oral or parenteral. Methods for ocular delivery can include topical administration (eye drops), subconjunctival, periocular or intravitreal injection or introduction by balloon catheter or ophthalmic inserts surgically placed in the conjunctival sac. Parenteral administration includes intravenous, intraarterial, subcutaneous, intraperitoneal or intramuscular injection or infusion; or intracranial, e.g., intrathecal or intraventricular, administration. Parenteral administration can be in the form of a single bolus dose, or may be, for example, by a continuous perfusion pump. Pharmaceutical compositions and formulations for topical administration may include transdermal patches, ointments, lotions, creams, gels, drops, suppositories, sprays, liquids and powders. Conventional pharmaceutical carriers, aqueous, powder or oily bases, thickeners and the like may be necessary or desirable.

This invention also includes pharmaceutical compositions which contain, as the active ingredient, one or more of the compounds of the invention above in combination with one or more pharmaceutically acceptable carriers. In making the compositions of the invention, the active ingredient is typically mixed with an excipient, diluted by an excipient or enclosed within such a carrier in the form of, for example, a capsule, sachet, paper, or other container. When the excipient serves as a diluent, it can be a solid, semi-solid, or liquid material, which acts as a vehicle, carrier or medium for the active ingredient. Thus, the compositions can be in the form of tablets, pills, powders, lozenges, sachets, cachets, elixirs, suspensions, emulsions, solutions, syrups, aerosols (as a solid or in a liquid medium), ointments containing, for example, up to 10 % by weight of the active compound, soft and hard gelatin capsules, suppositories, sterile injectable solutions, and sterile packaged powders.

In preparing a formulation, the active compound can be milled to provide the appropriate particle size prior to combining with the other ingredients. If the active compound is substantially insoluble, it can be milled to a particle size of less than 200 mesh. If the active compound is substantially water soluble, the particle size can be adjusted by milling to provide a substantially uniform distribution in the formulation, e.g. about 40 mesh.

Some examples of suitable excipients include lactose, dextrose, sucrose, sorbitol, mannitol, starches, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, syrup, and methyl cellulose. The formulations can additionally include: lubricating agents such as talc, magnesium stearate, and mineral oil; wetting agents; emulsifying and suspending agents; preserving agents such as methyl- and propylhydroxy-benzoates; sweetening agents; and flavoring agents. The compositions of the invention can be formulated so as to provide quick, sustained or delayed release of the active ingredient after administration to the patient by employing procedures known in the art.

The compositions can be formulated in a unit dosage form, each dosage containing from about 5 to about 100 mg, more usually about 10 to about 30 mg, of the active ingredient. The term "unit dosage forms" refers to physically discrete units suitable as unitary dosages for human subjects and other mammals, each unit containing a predetermined quantity of active material calculated to produce the desired therapeutic effect, in association with a suitable pharmaceutical excipient.

The active compound can be effective over a wide dosage range and is generally administered in a pharmaceutically effective amount. It will be understood, however, that the amount of the compound actually administered will usually be determined by a physician, according to the relevant circumstances, including the condition to be treated, the chosen route of administration, the actual compound administered, the age, weight, and response of the individual patient, the severity of the patient's symptoms, and the like.

For preparing solid compositions such as tablets, the principal active ingredient is mixed with a pharmaceutical excipient to form a solid preformulation composition containing a homogeneous mixture of a compound of the present invention. When referring to these preformulation compositions as homogeneous, the active ingredient is typically dispersed evenly throughout the composition so that the composition can be readily subdivided into equally effective unit dosage forms such as tablets, pills and capsules. This solid preformulation is then subdivided into unit dosage forms of the type described above containing from, for example, 0.1 to about 500 mg of the active ingredient of the present invention.

The tablets or pills of the present invention can be coated or otherwise compounded to provide a dosage form affording the advantage of prolonged action. For example, the tablet or pill can comprise an inner dosage and an outer dosage component, the latter being in the form of an envelope over the former. The two components can be separated by an enteric layer which serves to resist disintegration in the stomach and permit the inner component to pass intact into the duodenum or to be delayed in release. A variety of materials can be used for such enteric layers or coatings, such materials including a number of polymeric acids and mixtures of polymeric acids with such materials as shellac, cetyl alcohol, and cellulose acetate.

The liquid forms in which the compounds and compositions of the present invention can be incorporated for administration orally or by injection include aqueous solutions, suitably flavored syrups, aqueous or oil suspensions, and flavored emulsions with edible oils such as cottonseed oil, sesame oil, coconut oil, or peanut oil, as well as elixirs and similar pharmaceutical vehicles.

Compositions for inhalation or insufflation include solutions and suspensions in pharmaceutically acceptable, aqueous or organic solvents, or mixtures thereof, and powders. The liquid or solid compositions may contain suitable pharmaceutically acceptable excipients as described supra. In some embodiments, the compositions are administered by the oral or nasal respiratory route for local or systemic effect. Compositions in can be nebulized by use of inert gases. Nebulized solutions may be breathed directly from the nebulizing device or the nebulizing device can be attached to a face masks tent, or intermittent positive pressure breathing machine. Solution, suspension, or powder compositions can be administered orally or nasally from devices which deliver the formulation in an appropriate manner.

The amount of compound or composition administered to a patient will vary depending upon what is being administered, the purpose of the administration, such as prophylaxis or therapy, the state of the patient, the manner of administration, and the like. In therapeutic applications, compositions can be administered to a patient already suffering from a disease in an amount sufficient to cure or at least partially arrest the symptoms of the disease and its complications. Effective doses will depend on the disease condition being treated as well as by the judgment of the attending clinician depending upon factors such as the severity of the disease, the age, weight and general condition of the patient, and the like.

The compositions administered to a patient can be in the form of pharmaceutical compositions described above. These compositions can be sterilized by conventional sterilization techniques, or may be sterile filtered. Aqueous solutions can be packaged for use as is, or lyophilized, the lyophilized preparation being combined with a sterile aqueous carrier prior to administration. The pH of the compound preparations typically will be between 3 and 11, more preferably from 5 to 9 and most preferably from 7 to 8. It will be understood that use of certain of the foregoing excipients, carriers, or stabilizers will result in the formation of pharmaceutical salts.

The therapeutic dosage of the compounds of the present invention can vary according to, for example, the particular use for which the treatment is made, the manner of administration of the compound, the health and condition of the patient, and the judgment of the prescribing physician. The proportion or concentration of a compound of the invention in a pharmaceutical composition can vary depending upon a number of factors including dosage, chemical characteristics (e.g., hydrophobicity), and the route of administration. For example, the compounds of the invention can be provided in an aqueous physiological buffer solution containing about 0.1 to about 10% w/v of the compound for parenteral adminstration. Some typical dose ranges are from about 1 µg/kg to about 1 g/kg of body weight per day. In some embodiments, the dose range is from about 0.01 mg/kg to about 100 mg/kg of body weight per day. The dosage is likely to depend on such variables as the type and extent of progression of the disease or disorder, the overall health status of the particular patient, the relative biological efficacy of the compound selected, formulation of the excipient, and its route of administration. Effective doses can be extrapolated from dose-response curves derived from in vitro or animal model test systems.

The compounds of the invention can also be formulated in combination with one or more additional active ingredients which can include any pharmaceutical agent such as anti-viral agents, antibodies, immune suppressants, anti-inflammatory agents and the like.

The invention will be described in greater detail by way of specific examples of the invention. Reference examples are also shown. The following examples are offered for illustrative purposes, and are not intended to limit the invention in any manner. Those of skill in the art will readily recognize a variety of noncritical parameters which can be changed or modified to yield essentially the same results. The compounds of the Examples were tested for activity as inhibitors of 11βHSD1 and/or MR according to one or more of the assays provided herein.

Examples of the invention are indicated thus "#".

Reference examples are indicated thus "*".

EXAMPLES Example 1 - *

7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one Step1. 1-tert-butyl 3-ethyl 3-(3-methylbut-2-en-1-yl)piperidine-1,3-dicarboxylate

To a solution of 1-tert-butyl 3-ethyl piperidine-1,3-dicarboxylate (2.6 g, 10.0 mmol) in THF (30 mL) was slowly added LDA (6.7 mL, 12.0 mmol, 1.8 M solution in heptane-/tetrahydrofuran/ethylbenzene) at -78 °C and the mixture was slowly warmed to -55 °C over 1 h. To this mixture, 1-bromo-3-methyl-2-butene (1.55 g, 10.5 mmol) was slowly added and the reaction was warmed to room temperature and stirred for 4 h. The mixture was quenched with saturated NH₄Cl and extract with diethyl ether and the combined extract was washed with brine, dried and concentrated. The product (2.75 g, 85%) was purified by CombiFlash eluted with Hexane/ethyl acetate.

Step 2. 1-tert-buyl 3-ethyl 3-(2-oxoethyl)piperidine-1,3-dicarboxylate

1-tert-Butyl 3-ethyl 3-(3-methylbut-2-en-1-yl)piperidine-1,3-dicarboxylate (2.75 g, 8.5 mmol) in CH₂Cl₂ (100 mL) was cooed to -78 °C, and ozone was passed into the reaction mixture until a light blue color was observed (ca.15 min). Nitrogen was then bubbled through the solution to remove the excess ozone. Dimethyl sulfide (10 mL) was added and the reaction was slowly warmed to room temperature and stirred overnight. The reaction was then washed with water and brine, dried and concentrated to give the product (2.5 g).

Step 3. 1-tert-butyl 3-ethyl 3-{2-[(cis-4-hydroxycyclohexyl)amino]ethyl}piperidine-1,3-dicarboxylate

DIPEA (1.05 eq.) was added to a solution of trans-4-aminocyclohexanol hydrochloride (0.080 g, 0.53 mmol) in methanol (2.0 mL) and stirred for 5 min., to this solution 1-tert-tutyl 3-ethyl 3-(2-oxoethyl)-piperidine-1,3-dicarboxylate (0.15 g, 0.5 mmol) was added followed by sodium triacetoxyborohydride (0.21 g, 1.0 mmol) and the mixture was stirred for 2 h. The reaction was acidified by adding AcOH and diluted with water and extracted with ether, the aqueous phase was the basified by adding 1 N NaOH and the extracted with ethyl acetate which was then washed with water, brine, dried and concentrated to give the desired product (0.17 g, 85%). LC-MS: 399.2 (M+H)⁺.

Step 4. tert-butyl 2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate

iso-Propylmagnesium bromide (1.0 M in THF, 1.5 mL) was slowly added to a solution of 1-tert-butyl 3-ethyl 3-{2-[(cis-4-hydroxycyclohexyl)amino]ethyl}piperidine-1,3-dicarboxylate (0.15 g, 0.38 mmol) at 0 °C and the mixture was stirred at this temperature for 1 h. The reaction was then poured to cold water and extracted with ethyl acetate, dried and concentrated to give the desired product (0.11 g, 85 %). LC-MS: 353.2 (M+H)⁺, 297.1 (M+H-56)⁺.

Step 5. 2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride

Hydrogen chloride (2.0 mL, 4.0 M in 1,4-dioxnae) was added to a solution of tert-butyl 2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (0.10 g) in ethyl acetate (0.5 mL) at room temperature and the mixture was stirred for 1 h. the solvent was then removed under vacuum to give the product. LC-MS: 253.2 (M+H)⁺.

Step 6. 7-[(3-chloro-2-methylphenyl)sulfonyl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

A solution of 3-chloro-2 -methylbenzenesulfonyl chloride (0.050 g, 0.22 mmol) in CH₂Cl₂ (1.0 mL) was slowly added to a mixture of 2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (0.060 g, 0.2 mmol) and DIPEA (0.10 mL, 0.6 mmol) in CH₂Cl₂ (1.0 mL) at 0 °C and the reaction was stirred for 1 h. The mixture was diluted with ethyl acetate and then washed with diluted HCl, water and brine, dried and concentrated. The product was purified by CombiFlash eluted with CH₂Cl₂/EtOAc. LC-MS: 441.2/443.2 (M+H)⁺.

Example 2 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 441.1/443.1 (M+H)⁺.

Example 3 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-(2-methylphenyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 433.1/435.1 (M+H)⁺.

Example 4 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-phenyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 419.2/421.2 (M+H)⁺.

Example 5 - * Trans-4-{7-[(3-chloro-2-methylphenyl)sulfonyl]-1-oxo-2,7-diazaspiro[4.5]dec-2-yl}cyclohexanecarbonitrile

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 450.2/452.2 (M+H)⁺.

Example 6 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-cycloheptyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 439.1/441.1 (M+H)⁺.

Example 7 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 425.1/427.1 (M+H)⁺.

Example 8 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-(4-methylpyridin-3-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 434.1/435.1 (M+H)⁺.

Example 9 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-[cis-4-(pyridin-2-yloxy)cyclohexyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 518.2/520.2 (M+H)⁺.

Example 10 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-[cis-4-(pyridin-3-yloxy)cyclohexyl]-2,7-diazaspiro[4.5]decan-1-one

Example 11 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-[cis-4-(pyridin-4-yloxy)cyclohexyl]-2,7-diazaspiro[4.5]decan-1-one

Example 12 - * 2-(1-Adamantyl)-7-[(3-chloro-2-methylphenyl)sulfonyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 477.2/479.2 (M+H)⁺.

Example 13 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-(1-methyl-2-phenylethyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those of for example 1. LC-MS: 461.1/463.1 (M+H)⁺.

Example 14 - * (5R)-7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-cycloheptyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using a chiral column to separate the enantiomers of example 6. LC-MS: 439.1/441.1 (M+H)⁺.

Example 15 - * (5S)-7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-cycloheptyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those for the synthesis of example 1. LC-MS: 439.1/441.1 (M+H)⁺.

Example 16 - * cis-4-{7-[(3-Chloro-2-methylphenyl)sulfonyl]-l-oxo-2,7-diazaspiro[4.5]dec-2-yl}cyclohexanecarbonitrile

This compound was prepared using procedures analogous to those for the synthesis of example 1. LC-MS: 450.2/452.2 (M+H)⁺.

Example 17 - * 2-Cyclohexyl-7-(2-fluorophenyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures that were analogous to those described for the synthesis of example 1, steps 1-5, followed by the following microwave mediated amine/aryl coupling procedure:

A mixture of 2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one hydrochloride (0.025 g, 0.000092 mol), 1-bromo-2-fluorobenzene (0.032 g, 0.00018 mol), and sodium tert-butoxide (0.026 g, 0.00027 mol) in DMSO (0.5 mL) was microwave irradiated at 180 °C for 5 min. After cooling the reaction mixture to ambient temperature the crude product was purified by prep.-HPLC. LC-MS: 331.2 (M+H)+.

Example 18 - * 2-Cyclohexyl-7-(4-fluorophenyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those for the synthesis of example 17. LC-MS: 331.2 (M+H)⁺.

Example 19 - * 2-Cyclohexyl-7-(3-fluorophenyl)-2,7-diazaspiro[4.5]decan-1-one

Example 20 - * 2-Cyclohexyl-7-phenyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those for the synthesis of example 17. LC-MS: 313.2 (M+H)⁺.

Example 21 - # 7-(4-Fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those for the synthesis of example 17. LC-MS: 347.2 (M+H)⁺.

Example 22 - # 7-(3-Fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 23 - # 2-(trans-4-Hydroxycyclohexyl)-7-phenyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared using procedures analogous to those for the synthesis of example 17. LC-MS: 329.2 (M+H)⁺.

Example 26 - * Methyl 1-[7-(2-fluorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl] cyclopropanecarboxylate

This compound was prepared by using procedures that were analogous to those described for the synthesis of example 1, steps 1-3, followed by the following reductive amination/cyclization and amine/aryl coupling procedure:

1-Aminocyclopropanecarboxylic acid (0.10 g, 0.00099 mol) in MeOH (3 mL) with 4 N HCl (1.5 mL) was stirred at rt for 2 h. LCMS analysis indicated that the carboxylic acid was successfully converted to methyl ester. (m/z 116.3). The volatiles were removed in-vacuo to afford 150 mg of the methyl ester HCl salt. To this methyl ester, 1-tert-butyl 3-ethyl 3-(2-oxoethyl)piperidine-1,3-dicarboxylate (0.25 g, 0.00084 mol), and triethylamine (190 µL, 0.0013 mol) in 1,2-dichloroethane (1.5 mL, 0.019 mol) was stirred at .rt for 30 min. To the mixture was added sodium triacetoxyborohydride (0.35 g, 0.0017 mol) with stirring. After stirring at rt for 2 h, the reaction mixture then was heated to 70 °C and stirred for 16 h. LCMS data indicated that the spiro-ring formed and the methyl ester was hydrolyzed (m/z 283.0, (M - Bu + 2H)+). The reaction mixture was diluted with ethyl acetate and the organic solution was washed with 1N HCl, water, brine, and dried over Na2SO4. After filtration, the filtrate was concentrated to yield 300 mg of crude material. The residue was stirred with a solution of MeOH (2 mL) in 4 N HCl-dioxane solution for 2 h to form the methyl ester. The volatiles were removed in-vacuo to yield 268 mg of the desired product. LC-MS: 253.2 (M+H)+.

Example 27 - # 2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures that were analogous to those described for the synthesis of example 1, steps 1-5, and by the following microwave mediated amine/aryl coupling procedure:

A mixture of 2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (5 mg, 0.00002 mol), 2-chloro-5-(trifluoromethyl)pyridine (6 mg, 0.00003 mol), and triethylamine (20 µL, 0.0001 mol) in N-methylpyrrolidinone (800 µL, 0.008 mol) was microwave irradiated at 180 °C for 10 min. After cooling, it was purified by prep.-HPLC to afford 1.7 mg of the desired product. LC-MS: 398.3 (M+H)+.

Example 28 - # 6-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 355.3 (M+H)⁺.

Example 29 - # 2-(trans-4-Hydroxycyclohexyl)-7-(6-methoxypyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of 2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (35 mg, 0.00012 mol), 2-bromo-6-methoxypyridine (34 mg, 0.00018 mol), triethylamine (200 µL, 0.001 mol), and copper(I) iodide (28 mg, 0.00014 mol) in N-methylpyrrolidinone (1.0 mL, 0.010 mol) was microwave irradiated at 180 °C for 20 min. After allowing the reaction mixture to cool to rt the crude mixture was purified by prep.-HPLC to afford 8.3 mg of the desired product. LC-MS: 360.3 (M+H)+.

Example 30 - # 2-(trans-4-Hydroxycyclohexyl)-7-(6-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 344.3 (M+H)⁺.

Example 31 - # 2-(trans-4-Hydroxycyclohexyl)-7-(5-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

Example 32 - # 7-(5-Fuoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 348.3 (M+H)⁺.

Example 33 - # 2-(trans-4-Hydroxycyclohexyl)-7-[6-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 398.3 (M+H)⁺.

Example 34- # (5S)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by chiral separation of example 27. LC-MS: 398.3 (M+H)⁺.

Example 35 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 36 - # 7-(6-Fuoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 37 - # 2-(trans-4-Hydroxycyclohexyl)-7-(3-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 344.2 (M+H)⁺.

Example 38 - # 2-(trans-4-Hydroxycyclohexyl)-7-(4-methoxypyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 360.3 (M+H)⁺.

Example 39 -# 2-(trans-4-Hydroxycyclohexyl)-7-pyridin-2-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 330.3 (M+H)⁺.

Example 40 - * (5R)-2-Cyclohexyl-7-phenyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 17 followed by separation of the enantiomers using a chiral column. LC-MS: 313.3 (M+H)⁺.

Example 41 - * (5S)-2-Cyclohexyl-7-phenyl-2,7-diazaspiro[4.5]decan-1-one

Example 42 - # 7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 432.2 (M+H)⁺.

Example 43 - # 4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 17, with the exception that NaO-(t-Bu) was replaced by K₂CO₃. LC-MS: 354.2 (M+H)⁺.

Example 44 - # 2-(trans-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

A mixture of 2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (25 mg, 0.000086 mol), 1-bromo-4-(trifluoromethyl)benzene (29 mg, 0.00013 mol), sodium tert-butoxide (28 mg, 0.00029 mol), palladium acetate (0.6 mg, 0.000002 mol), and 2-(di-tert-butylphosphino)biphenyl (0.8 mg, 0.000002 mol) in 1,4-dioxane (1.0 mL, 0.013 mol) was heated at 100 °C with stirring for 16 h. LCMS indicated that most of the desired product was oxidized to the ketone so the crude reaction mixture was cooled to -10 °C and 1.0 M of L-selectride ® in tetrahydrofuran (0.2 mL) was added and the mixture was stirred for 20 min. LCMS indicated that the ketone was converted to the alcohol. The crude mixture was purified by prep.-HPLC. to afford 5.2 mg of the desired product. LC-MS: 397.2 (M+H)+.

Example 45 - # 3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 43. LC-MS: 372.2 (M+H)⁺.

Example 46 - * 4-(2-Cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl)benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 43. LC-MS: 338.3 (M+H)⁺.

Example 47 - * 4-(2-Cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl)-3-fluorobenzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 43. LC-MS: 356.3 (M+H)⁺.

Example 48 - * 2-(trans-4-Hydroxycyclohexyl)-7-(piperidin-1-ylcarbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures that were analogous to those described for the synthesis of example 1, steps 1-5, and by the following urea coupling procedure.

Step 1. 4-nitrophenyl 2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate

A mixture of 2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (0.30 g, 0.0010 mol), p-nitrophenyl chloroformate (0.25 g, 0.0012 mol), and N,N-diisopropylethylamine (540 µL, 0.0031 mol) in methylene chloride (4 mL, 0.06 mol) was stirred at rt for 16 h. The crude reaction mixture was purified by flash column chromatography to afford 120 mg of the desired product.

Step 2. 2-(trans-4-hydroxycyclohexyl)-7-(piperidin-1-ylcarbonyl)-2,7-diazaspiro[4.5]decan-1-one

To a solution of 4-nitrophenyl 2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (30 mg, 0.00007 mol) in tetrahydrofuran (0.5 mL, 0.006 mol) was added N,N-diisopropylethylamine (25.0 µL, 0.000144 mol) and piperidine (10 µL, 0.0001 mol). After stirring at rt for 16 h, the crude reaction mixture was purified by prep.-HPLC to afford the desired product. LC-MS: 364.3 (M+H)⁺.

Example 49 - * 2-(trans-4-Hydroxycyclohexyl)-7-(pyrrolidin-1-ylcarbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 350.3 (M+H)⁺.

Example 50 - * 2-(trans-4-Hydroxycyclohexyl)-7-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 438.3 (M+H)⁺.

Example 51 - * 2-(trans-4-Hydroxycyclohexyl)-7-[(4-phenylpiperidin-1-yl)carbonyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 440.3 (M+H)⁺.

Example 52 - * 2-(trans-4-Hydroxycyclohexyl)-7-[(4-phenylpiperazin-1-yl)carbonyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 441.2 (M+H)⁺.

Example 53 - * 7-{[4-(2-Fluorophenyl)piperazin-1-yl]carbonyl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 459.2 (M+H)⁺.

Example 54 - * 2-(trans-4-Hydroxycyclohexyl)-7-({4-[2-(trifluoromethyl)phenyl]piperazin-1-yl}carbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 509.2 (M+H)⁺.

Example 55 - * 2-Cyclohexyl-7-isonicotinoyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures that were analogous to those described for the synthesis of example 1, steps 1-5, followed by the following acylation procedure:

A mixture of 2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one hydrochloride (15 mg, 0.000055 mol), isonicotinoyl chloride hydrochloride (12 mg, 0.000066 mol), and triethylamine (27 µL, 0.00019 mol) in acetonitrile (0.5 mL, 0.01 mol) was stirred at rt for 2 h. The crude reaction mixture was purified by prep.-HPLC. to afford 18 mg of the desired product. LC-MS: 342.3 (M+H)+.

Example 56 - * 7-Benzoyl-2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 55. LC-MS: 340.3 (M+H)⁺.

Example 57 - * 2-Cyclohexyl-7-(pyridin-3-ylcarbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 55. LC-MS: 342.3 (M+H)⁺.

Example 58 - * 2-(trans-4-Hydroxycyclohexyl)-7-isonicotinoyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 55. LC-MS: 358.3 (M+H)⁺.

Example 59 - * 7-Benzoyl-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 55. LC-MS: 357.2 (M+H)⁺.

Example 60 - * 2-(trans-4-Hydroxycyclohexyl)-7-(pyridin-3-ylcarbonyl)-2,7-diazaspiro[4.5]decan-1-one

Example 61 - # Isopropyl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

Step 1. 7-(4-Aminophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of 2-(trans-4-hydroxycyclohexyl)-7-(4-nitrophenyl)-2,7-diazaspiro[4.5]decan-1-one (0.13 g, 0.00028 mol, prepared by using a procedure that was analogous to that described for the synthesis of example 43), 10% Pd/C (activated) in methanol (5 mL, 0.1 mol) was stirred under a H₂ atmosphere (balloon) for 1.5 hour. The catalyst was filtered and the filtrate was concentrated in-vauo to afford the desired product in quantitative yield. LC-MS: 344.3 (M+H)⁺.

Step 2. isopropyl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

A mixture of 7-(4-aminophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one (20 mg, 0.00006 mol), isopropyl chloroformate (11 mg, 0.000087 mol), and triethylamine (20 µL, 0.0002 mol) in methylene chloride (300 µL, 0.005 mol) was stirred at rt for 2 h. The crude reaction mixture was purified by prep.-HPLC to afford 17.4 mg of the desired product. LC-MS: 430.3 (M+H)⁺.

Example 62 - # Prop-2-yn-1-yl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 426.3 (M+H)⁺.

Example 63 - # Methyl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 402.2 (M+H)⁺.

Example 64 - # N{4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 386.3 (M+H)⁺.

Example 65 - # N-{4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 412.3 (M+H)⁺.

Example 66 - # Isopropyl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 448.3 (M+H)⁺.

Example 67 - # Prop-2-yn-1-yl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 444.3 (M+H)⁺.

Example 68 - # Methyl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 420.3 (M+H)⁺.

Example 69 - # N-{3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 430.3 (M+H)⁺.

Example 70 - # 7-(4-Chloropyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 365.3 (M+H)⁺.

Example 71 - * 2-Cyclohexyl-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 382.2 (M+H)⁺.

Example 72 - * 2-Cyclohexyl-7-pyridin-2-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 314.3 (M+H)⁺.

Example 73 - * 7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 416.2 (M+H)⁺.

Example 74 - * 2-Cyclohexyl-7-(piperidin-1-ylcarbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures that were analogous to those described for the synthesis of example 1, steps 1-5, and by the following urea coupling procedure:

To a solution of 2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one hydrochloride (20 mg, 0.00007 mol) in methylene chloride (0.5 mL, 0.008 mol) was added N,N-diisopropylethylamine (14.0 µL, 0.0000806 mol) and the solution was stirred at rt for 5 min. prior to the addition of N,N-carbonyldiimidazole (24 mg, 0.00015 mol). After stirring the reaction mixture at rt for 3 h, piperidine (6.2 mg, 0.00007 mol) was added and stirring was continued for 12 h. To drive the reaction to completion the mixture was heated at 170 °C under microwave irradiation for 1 h. The crude mixture was purified by prep.-HPLC to afford the desired product. LC-MS: 348.2 (M+H)+.

Example 75 - * 2-Cyclohexyl-7-(pyrrolidin-1-ylcarbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 74. LC-MS: 334.2 (M+H)⁺.

Example 76 - * 2-Cyclohexyl-7-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 74. LC-MS: 422.2 (M+H)⁺.

Example 77 - * 2-Cyclohexyl-7-[(4-phenylpiperidin-1-yl)carbonyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 74. LC-MS: 424.2 (M+H)⁺.

Example 78 - * 2-Cyclohexyl-7-[(4-phenylpiperazin-1-yl)carbonyl]-2,7-diazaspiro[4.5]decan-1-one

Example 79 - * 2-Cyclohexyl-7-{[4-(2-fluorophenyl)piperazin-1-yl]carbonyl}-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 74. LC-MS: 443.2 (M+H)⁺.

Example 80 - * 2-Cyclohexyl-7-({4-[2-(trifluoromethyl)phenyl]piperazin-1-yl}carbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 74. LC-MS: 493.2 (M+H)⁺.

Example 83 - # 2-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 355.2 (M+H)⁺.

Example 84 - # 7-(5-Chloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 364.2/366.2 (M+H)⁺.

Example 85 - # 7-(3,5-Dichloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 398.2/400.2/402.2 (M+H)⁺.

Example 86 - # 2-(trans-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 398.2 (M+H)⁺.

Example 87 - # 2-(trans-4-Hydroxycyclohexyl)-7-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 412.3 (M+H)⁺.

Example 88 - # Methyl 6-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinate

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 388.2 (M+H)⁺.

Example 89 - # 2-(trans-4-Hydroxycyclohexyl)-7-isoquinolin-1-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 380.3 (M+H)⁺.

Example 90 - # 2-(trans-4-Hydroxycyclohexyl)-7-quinolin-2-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 27. LC-MS: 380.2 (M+H)⁺.

Example 91 - # N-{3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 61. LC-MS: 404.3 (M+H)⁺.

Example 92 - * (5R)-2-(2-Chlorophenyl)-7-(3,5-dichloropyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

Step 1. 1-tert-butyl 3-ethyl 3-(2-chloroethyl)piperidine-1,3-dicarboxylate

Lithium diisopropylamide (1.8 M in THF, 3.9 mL) was slowly added to a solution of 1-tert-butyl 3-ethyl piperidine-1,3-dicarboxylate (1.50 g, 0.00583 mol) in tetrahydrofuran (20 mL, 0.2 mol) at -78 °C and the mixture was stirred for about 1 hour during which the temperature was allowed to rise to about -50 °C. 1-Bromo-2-chloro-ethane (0.75 mL, 0.0082 mol) was slowly added to the mixture and then the resulting mixture was allowed to warm to rt (room temperature). After stirring for 2 h, the reaction mixture was quenched with saturated NH₄Cl and extracted with ethyl ether twice. The combined organic layers were dried and concentrated in-vacuo to afford the crude product, which was purified by CombiFlash eluting with hexane/EtOAc (max. EA 20%).

Step 2. tert-butyl (5S)-2-(2-chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate and tert-butyl (5R)-2-(2-chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate

Lithium hexamethyldisilazide (1.0 M in tetrahydrofuran, 2.5 mL) was slowly added to a solution of o-chloroaniline (0.14 g, 0.0011 mol) in tetrahydrofuran (4.0 mL, 0.049 mol) at -78 °C and stirred for 30 min. To this mixture was added a solution of 1-tert-butyl 3-ethyl 3-(2-chloroethyl)piperidine-1,3-dicarboxylate (0.320 g, 0.00100 mol) in THF (0.5 mL) and the resultant mixture was stirred for additional 18 h. The reaction mixture was quenched by an addition of methanol (2 mL) and the solvent was removed in-vacuo to afford the racemic product, which was purified by CombiFlash (12 g column, eluting with hexane/EtOAc with max. EtOAc 30%) to afford the desired racemate (0.26 g, 72%). LC-MS: 309.1 (M+ H- t-Bu (56)).⁺ The pure enantiomers were separated by chiral column. The shorter retention time peak was designated as the S-enantiomer and the longer retention time peak was designated as the R-enantiomer (the R-enantiomer was found to be active).

Step 3. (5R)-2-(2-chlorophenyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride

Hydrogen chloride (4.0 M in 1,4-dioxane, 2.0 mL) was added to a solution of tert-butyl (5R)-2-(2-chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (0.103 g, 0.000283 mol) in ethyl acetate (0.5 mL) and the mixture was stirred for 2 h. Then the solvent was removed in-vacuo to afford the desired product. LC-MS: 265.2 (M+H).⁺

Step 4. (5R)-2-(2-chlorophenyl)-7-(3,5-dichloropyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of (5R)-2-(2-chlorophenyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (18.2 mg, 0.0000604 mol), 2,3,5-trichloropyridine (16 mg, 0.000091 mol) and triethylamine (0.025 mL, 0.00018 mol) in N,N-dimethylformamide (0.4 mL, 0.005 mol) was irradiated with microwaves to heat the mixture to 180 °C for 20 min. The crude product was purified by prep-HPLC to afford the desired product. LC-MS: 410.1/ 412.1/ 414.0 (M+H)⁺.

Example 93 - * 2-(2-Chlorophenyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

A mixture of 2-(2-chlorophenyl)-2,7-diazaspiro[4.5]decan-1-one (16.0 mg, 0.0000604 mol, which was prepared by using a procedure that was analogous to that used for the synthesis of example 1, steps 1-5), 2-chloro-5-(trifluoromethyl)pyridine (13 mg, 0.000072 mol) and N,N-diisopropylethylamine (0.032 mL, 0.00018 mol) in N-methylpyrrolidinone (0.4 mL, 0.005 mol) was irradiated with microwaves to heat the reaction mixture to 180 °C for 20 min. The crude product was purified by prep-HPLC to afford the desired product. LC-MS: 410.2/412.2 (M+H)⁺.

Example 94 - * 2-(2-Chlorophenyl)-7-(3-chloropyrazin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 377.1/379.1 (M+H)⁺.

Example 95 - * 2-(2-Chlorophenyl)-7-(3-chloropyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 376.1/378.1 (M+H)⁺.

Example 96 - * 2-[(5R)-2-(2-Chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 92. LC-MS: 367.2/369.1 (M+H)⁺.

Example 97 - * (5R)-2-(2-Chlorophenyl)-7-[3-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 92. LC-MS: 410.1/412.1 (M+H)⁺.

Example 98 - * 6-[(5R)-2-(2-Chlorophenyl)-l-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

Example 99 - * Methyl {6-[(5R)-2-(2-chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Step 1. (5R)-7-(5-aminopyridin-2-yl)-2-(2-chlorophenyl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of (5R)-2-(2-chlorophenyl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (40.0 mg, 0.000133 mol, prepared by using a procedure analogous to that used for the synthesis of example 92, steps 1-3), 2-chloro-5-nitropyridine (23 mg, 0.00015 mol), and potassium carbonate (55 mg, 0.00040 mol) in N,N-dimethylformamide (1.0 mL, 0.013 mol) was stirred at 120 °C for 1.5 hours. After cooling the reaction mixture to ambient temperature the solid was filtered off and the filtrate was concentrated in-vacuo to afford the desired product. LC-MS: 387.1 (M+H)⁺. The resulting residue was dissolved in methanol and to this solution was added platinum [5 wt. % (dry basis) on activated carbon, wet, Degussa type F101, RA/W (Aldrich # 330159), 15 mg] under an atmosphere of H₂ (g) at rt for 2 h. The catalyst was filtered off from the mxture and the filtrate was concentrated in-vacuo to afford the product in quantitative yield. LC-MS: 357.1 (M+H)⁺.

Step 2. Methyl {6-[(5R)-2-(2-chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Methyl chloroformate (4.4 µL, 0.000057 mol) was added to a solution of (5R)-7-(5-aminopyridin-2-yl)-2-(2-chlorophenyl)-2,7-diazaspiro[4.5]decan-1-one (18.5 mg, 0.0000478 mol) and pyridine (13 µL, 0.00016 mol) methylene chloride (1.0 mL, 0.016 mol) and the mixture was stirred for 0.5 h at rt. The volatiles were removed in-vacuo and the crude product was purified by prep-HPLC. LC-MS: 415.1/417.1 (M+H)⁺.

Example 100 - * Ethyl {6-[(5R)-2-(2-chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 99. LC-MS: 429.1 (M+H)⁺.

Example 101 - * Propyl {6-[(5R)-2-(2-chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 99. LC-MS: 443.1 (M+H)⁺.

Example 102 - * 6-[2-(2-Chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N-methylnicotinamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 399.2 (M+H)⁺.

Example 103 - * 6-[2-(2-Chlorophenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N-ethylnicotinamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 413.2 (M+H)⁺.

Example 104 - * (5R)-2-(Tetrahydro-2H-pyran-4-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Racemic 2-(tetrahydro-2H-pyran-4-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one (9.0 mg, 0.000023 mol, the racemic mixture was prepared by using procedures analogous to those described for the synthesis of example 93) was purified by chiral column to give the pure two enantiomers. The shorter retention time peak was designated as S-enantiomer and the longer retention time peak was designated as R-enantiomer and collected. The R-enantiomer was fount to be active. LC-MS: 384.2 (M+H)⁺.

Example 105 - * Methyl {6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Step 1. (5R)-7-(5-aminopyridin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of (5R)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one [90 mg, 0.0004 mol, this compound was prepared by using procedures analogous to those described for the synthesis of example 1, steps 1-5], 2-cloro-5-nitropyridine (69 mg, 0.00044 mol), and potassium carbonate (160 mg, 0.0012 mol) in N,N-dimethylformamide (2 mL, 0.02 mol) was stirred at 120 °C for 1.5 hours. After cooling the reaction mixture to ambient temperature, the solid was filtered off and the filtrate was concentrated in-vacuo to afford the desired product. LC-MS: 361.2 (M+H)⁺. The resulting residue was dissolved in methanol and to this solution was added 10% Pd on carbon and the reaction vessel was placed under a H₂ (g) atmosphere and stirred at rt for 1.5 h. The catalyst was filtered off from the mixture and the filtrate was concentrated to afford the desired product in quantitative yield and was used in the next step without further purification. LC-MS: 331.2 (M+H)⁺.

Step 2. Methyl {6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Methyl chloroformate (4.4 µL, 0.000057 mol) was added to a solution of (5R)-7-(5-aminopyridin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one (15.8 mg, 0.0000478 mol), N,N-diisopropylethylamine (27 µL, 0.00016 mol) and methylene chloride (1.0 mL, 0.016 mol); and the mixture was stirred for 1 h. The volatiles were removed in-vacuo and the crude product was purified by prep-HPLC. LC-MS: 389.2 (M+H)⁺.

Example 106 - * Ethyl {6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 403.3 (M+H)⁺.

Example 107 - * Propyl {6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 417.3 (M+H)⁺.

Example 108 - * Isopropyl {6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Example 109 - * Isobutyl {6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 431.3 (M+H)⁺.

Example 110 - * (5R)-7-(3-Chloropyrazin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 351.1 (M+H)⁺.

Example 111 - * 3-[(5R)-1-Oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyrazine-2-carbonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 342.2 (M+H)⁺.

Example 112 - * (5R)-7-(3-Chloropyridin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 350.2 (M+H)⁺.

Example 113 - * 2-[(5R)-1-Oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 341.2 (M+H)⁺.

Example 114 - * (5R)-2-(Tetrahydro-2H-pyran-4-yl)-7-[3-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 384.2 (M+H)⁺.

Example 115 - * (5R)-7-(3,5-Dichloropyridin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 384.1 (M+H)⁺.

Example 116 - * (5R)-7-(5-Chloropyridin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of (5R)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one hydrochloride (29.4 mg, 0.000107 mol, this compound was prepared by using procedures analogous to those described for the synthesis of example 1, steps 1-5), 5-chloro-2-fluoropyridine (17 mg, 0.00013 mol) and potassium carbonate (0.029 mL, 0.00032 mol) in N,N-dimethylformamide (0.6 mL, 0.008 mol) was heated at 120 °C for 5 h. The crude product was purified by prep-HPLC to afford the desired product. LC-MS: 350.2 (M+H)⁺.

Example 117 - * Methyl {5-chloro-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 423.1 (M+H)⁺.

Example 118 - * Ethyl {5-chloro-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 437.2 (M+H)⁺.

Example 119 - * Propyl {5-chloro-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 451.2 (M+H)⁺.

Example 120 - * Isopropyl {5-chloro-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Example 121 - * Isobutyl {5-chloro-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 465.2 (M+H)⁺.

Example 122 - * 3-Chloro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 351.1 (M+H)⁺.

Example 123 - * 6-[(5R)-1-Oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 341.2 (M+H)⁺.

Example 124 - * (5R)-7-(3,5-Difluoropyridin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 352.2 (M+H)⁺.

Example 125 - * (5R)-7-Isoquinolin-1-yl-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 366.3 (M+H)⁺.

Example 126 - * (5R)-7-quinolin-2-yl-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 366.2 (M+H)⁺.

Example 127 - * Methyl {5-methyl-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 403.2 (M+H)⁺.

Example 128 - * Ethyl {5-methyl-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 417.2 (M+H)⁺.

Example 129 - * Propyl {5-methyl-6-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 431.2 (M+H)⁺.

Example 130 - * Methyl {3-fluoro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 406.3 (M+H)⁺.

Example 131 - * Ethyl {3-fluoro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 420.2 (M+H)⁺.

Example 132 - * Propyl {3-fluoro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 434.2 (M+H)⁺.

Example 133 - * Isopropyl {3-fluoro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 434.3 (M+H)⁺.

Example 134 - * Isobutyl {3-fluoro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 448.3 (M+H)⁺.

Example 135 - * Methyl {4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 388.3 (M+H)⁺.

Example 136 - * Ethyl {4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 402.2 (M+H)⁺.

Example 137 - * Propyl {4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 416.3 (M+H)⁺.

Example 138 - * Isopropyl {4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 416.2 (M+H)⁺.

Example 139 - * Isobutyl {4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 430.3 (M+H)⁺.

Example 140 - * Methyl methyl{4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

Sodium hydride (1.6 mg, 0.000041 mol) was added to a solution of methyl {4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate (8.0 mg, 0.000021 mol) in tetrahydrofuran (1.0 mL, 0.012 mol) at rt. After stirring for 5 min., methyl iodide (2.6 µL, 0.000041 mol) was added and the reaction mixture was stirred for 1 h at rt. The crude product was purified by prep- HPLC. LC-MS: 402.3 (M+H)⁺.

Example 141 - * 3-Fluoro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 358.2 (M+H)⁺.

Example 142 - * 2-(1-Methylpiperidin-4-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 397.2 (M+H)⁺.

Example 143 - * Methyl 4-{1-oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}piperidine-1-carboxylate

Step 1. 2-piperidin-4-yl-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

A mixture of tert-butyl 4-(1-oxo-2,7-diazaspiro[4.5]dec-2-yl)piperidine-1-carboxylate (36.0 mg, 0.000107 mol, this compound was prepared by using a procedure that was analogous to that described for the synthesis of example 1, steps 1-5), 2-chloro-5-(trifluoromethyl)pyridine (23 mg, 0.00013 mol) and N,N-diisopropylethylamine (0.056 mL, 0.00032 mol) in N-methylpyrrolidinone (0.8 mL, 0.008 mol) was irradiated with microwaves to heat the mixture to 180 °C for 20 min. The mixture was diluted with ethyl acetate and washed with water and brine, dried over sodium sulfate, filtered and concentrated to afford the desired Boc-protected product. LC-MS: 483.2 (M+H)⁺. The residue was treated with 4 N HCl in dioxane to afford the de-Boc product. LC-MS: 383.2 (M+H)⁺.

Step 2. Methyl 4-{1-oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}piperidine-1-carboxylate

Methyl chloroformate (4.4 µL, 0.000057 mol) was added to a solution of 2-piperidin-4-yl-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one (18.3 mg, 0.0000478 mol) and N,N-diisopropylethylamine (27 µL, 0.00016 mol) in methylene chloride (1.0 mL, 0.016 mol); and the mixture was stirred for 0.5 h. The volatiles were removed in-vacuo and the product was purified by prep-HPLC. LC-MS: 441.2 (M+H)⁺.

Example 144 - * N,N-Dimethyl-4-{1-oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}piperidine-1-carboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 143. LC-MS: 454.2 (M+H)⁺.

Example 145 - * 7-(3-Chloropyrazin-2-yl)-2-quinolin-5-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 394.2 (M+H)⁺.

Example 146 - * 7-(3-Chloropyridin-2-yl)-2-quinolin-5-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 393.2 (M+H)⁺.

Example 147 - * 7-(3,5-Dichloropyridin-2-yl)-2-quinolin-5-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 427.2 (M+H)⁺.

Example 148 - * 2-(2-Methylphenyl)-7-[4-(trifluoromethyl)pyrimidin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 391.2 (M+H)⁺.

Example 149 - * 7-(4-Chloropyrimidin-2-yl)-2-(2-methylphenyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 357.2 (M+H)⁺.

Example 150 - * 7-(6-Chloro-7H-purin-2-yl)-2-(2-methylphenyl)-2,7-diazaspiro[4.5]decan-1-one

Example 151 - * 3-[2-(2-Methylphenyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrazine-2-carbonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 348.2 (M+H)⁺.

Example 152 - * 7-(6-Chloropyrazin-2-yl)-2-(2-methylphenyl)-2,7-diazaspiro[4.5]decan-1-one

Example 153 - * 7-(3-Chloropyrazin-2-yl)-2-(2-methylphenyl)-2,7-diazaspiro[4.5]decan-1-one

Example 154 - * 2-(2-Methylphenyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 390.2 (M+H)⁺.

Example 155 - * 2-Quinolin-5-yl-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 156 - * 2-Isoquinolin-5-yl-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 157 - * 2-(4-Bromo-2-methylphenyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 468.1/470.1 (M+H)⁺.

Example 158 - * 3-Methyl-4-{1-oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}benzonitrile

A mixture of 2-(4-bromo-2-methylphenyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one (63.6 mg, 0.000136 mol), zinc cyanide (32 mg, 0.00027 mol), potassium carbonate (0.056 g, 0.00041 mol) and tetrakis(triphenylphosphine) palladium(0) (8 mg, 0.000007 mol) in N,N-dimethylformamide (0.5 mL, 0.006 mol) was stirred at 100 °C for 2 days. The reaction mixture was cooled to ambient temperature and purified by prep-HPLC (under PH ∼ 10) to afford the desired product. LC-MS: 415.2 (M+H)⁺.

Example 159 - * N-(3-Methyl-4-{1-oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}phenyl)acetamide

To a solution of 2-(4-bromo-2-methylphenyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one (38.1 mg, 0.0000814 mol), in 1,4-dioxane (0.5 mL, 0.006 mol) was added (1S,2S)-N,N'-dimethylcyclohexane-1,2-diamine (2.3 mg, 0.000016 mol), copper(I) iodide (1.6 mg, 0.0000081 mol), acetamide (9.6 mg, 0.00016 mol), and potassium carbonate (23.6 mg, 0.000171 mol) and the mixture was stirred at 100 °C overnight. The product was purified by prep-HPLC. LC-MS: 447.2 (M+H)⁺.

Example 160 - * N-(3-Methyl-4-{1-oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}phenyl)methanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 159. LC-MS: 483.2 (M+H)⁺.

Example 161 - * 2-(3-Methylpyridin-4-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Step 1. 1-tert-butyl 3-ethyl 3-[2-(tritylamino)ethyl]piperidine-1,3-dicarboxylate

Tritylamine (180 mg, 0.00068 mol) was added to a solution of 1-tert-butyl 3-ethyl 3-(2-oxoethyl)piperidine-1,3-dicarboxylate (0.170 g, 0.000568 mol, this was prepared by using procedures analogous to that described for the synthesis of example 1, steps 1-2) in 1,2-dichloroethane (4.0 mL, 0.051 mol) and followed by sodium triacetoxyborohydride (0.36 g, 0.0017 mol) and the mixture was stirred overnight. The mixture was poured into pre-cooled water, and extracted with ethyl acetate. The organic layer was separated, dried (NaSO₄), and concentrated in-vacuo. The product was purified by CombiFlash eluting with hexane/EtOAc (max EtOAc 20%). LC-MS: 543.3 (M+H)⁺; 243.2.

Step 2. 2,7-diazaspiro[4.5]decan-1-one

Trifluoroacetic acid (1.0 mL, 0.013 mol) was added to a solution of 1-tert-butyl 3-ethyl 3-[2-(tritylamino)ethyl]piperidine-1,3-dicarboxylate (0.10 g, 0.00018 mol) in methylene chloride (1.0 mL, 0.016 mol) and the mixture was stirred for 1 h at rt to remove the Boc and trityl groups. Then the solvent was removed under vacuum and to the resultant residue was added 1,4-dioxane (3.0 mL, 0.038 mol) followed by N,N-diisopropylethylamine (0.13 mL, 0.00074 mol) and the resultant mixture was stirred at 150 °C (microwave) for 1 h. The solvent from the mixture was removed under vacuum and the crude product was used in the next step without further purification. LC-MS: 155.2 (M+H)⁺.

Step 3. 7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

A mixture of 2,7-diazaspiro[4.5]decan-1-one (50.0 mg, 0.000324 mol), 2-chloro-5-(trifluoromethyl)pyridine (71 mg, 0.00039 mol) and N,N-diisopropylethylamine (0.17 mL, 0.00097 mol) in N-methylpyrrolidinone (2 mL, 0.02 mol) was irradiated with microwaves at 180 °C for 20 min. The product was purified by prep-HPLC. LC-MS: 300.2 (M+H)⁺.

Step 4. 2-(3-methylpyridin-4-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

To a solution of 7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one (24.4 mg, 0.0000814 mol) in 1,4-dioxane (0.5 mL, 0.006 mol) were added (1S,2S)-N,N'-dimethylcyclohexane-1,2-diamine (2.3 mg, 0.000016 mol), copper(I) iodide (1.6 mg, 0.0000081 mol), 4-bromo-3-methylpyridine (28 mg, 0.00016 mol) and potassium carbonate (23.6 mg, 0.000171 mol); and the mixture was stirred at 100 °C overnight. The product was purified by prep-HPLC. LC-MS: 391.2 (M+H)⁺.

Example 162 - * (5R)-2-(4-Methylpyridin-3-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Step 1. 1-tert-butyl 3-ethyl 3-{2-[(4-methylpyridin-3-yl)amino]ethyl}piperidine-1,3-dicarboxylate

4-methylpyridin-3-amine (36.0 mg, 0.000333 mol) was added to a solution of 1-tert-butyl 3-ethyl 3-(2-oxoethyl)piperidine-1,3-dicarboxylate (0.095 g, 0.00032 mol) in 1,2-dichloroethane (1.9 mL, 0.025 mol) and followed by sodium triacetoxyborohydride (0.20 g, 0.00095 mol) and the mixture was stirred for 24 h. The mixture was poured into pre-cooled water, extracted with ethyl acetate. The organic layer was separated, dried and concentrated. The product was purified by CombiFlash using CH₂Cl₂/EtOAc (max EtOAc 50%). LC-MS: 392.3 (M+H)⁺.

Step 2. ethyl 3-{2-[(4-methylpyridin-3-yl)amino]ethyl}piperidine-3-carboxylate trihydrochloride

Hydrogen chloride in 1,4-dioxane (4.0 M, 2.0 mL) was added to a solution of 1-tert-butyl 3-ethyl 3-{2-[(4-methylpyridin-3-yl)amino]ethyl}piperidine-1,3-dicarboxylate (0.036 g, 0.000092 mol) in ethyl acetate (0.5 mL) and the mixture was stirred for 2 h. Then the solvent was removed in-vacuo to afford the product. LC-MS: 292.3 (M+H)⁺.

Step 3. (5R)-2-(4-methylpyridin-3-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

A mixture of ethyl 3-{2-[(4-methylpyridin-3-yl)amino]ethyl}piperidine-3-carboxylate trihydrochloride (42.8 mg, 0.000107 mol), 2-chloro-5-(trifluoromethyl)pyridine (23 mg, 0.00013 mol) and N,N-diisopropylethylamine (0.056 mL, 0.00032 mol) in N-methylpyrrolidinone (0.8 mL, 0.008 mol) was irradiated with microwaves to 180 °C for 20 min. Sodium hydride (30.0 mg) was then added to the above solution and the mixture was stirred overnight. The product was purified by prep-HPLC. LC-MS: 391.2 (M+H)⁺.

Example 163 - * 7-(3-Chloropyrazin-2-yl)-2-(1-methylpiperidin-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 364.1 (M+H)⁺.

Example 164 - * Methyl [4-[(5R)-2-cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 454.2 (M+H)⁺.

Example 165 - * Ethyl [4-[(5R)-2-cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 468.2 (M+H)⁺.

Example 166 - * Prop-2-yn-1-yl [4-[(5R)-2-cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 478.1 (M+H)⁺.

Example 167 - * N-[4-[(5R)-2-Cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 438.1 (M+H)⁺.

Example 168 - * N-[4-[(5R)-2-Cyclohexyl-1-oxo-2,7-diazaspiro[4.5] dec-7-yl]-3-(trifluoromethyl)phenyl]methanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 474.1 (M+H)⁺.

Example 169 - * Methyl methyl[4-[(SR)-2-cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 468.1 (M+H)⁺.

Example 170 - # Prop-2-yn-1-yl {5-chloro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 461.1 (M+H)⁺.

Example 171 - # Methyl {5-chloro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 437.1 (M+H)⁺.

Example 172 - # Ethyl {5-chloro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 450.1 (M+H)⁺.

Example 173 - # N-{5-Chloro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 421.1 (M+H)⁺.

Example 174 - # N-{5-Chloro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl} methanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 457.2 (M+H)⁺.

Example 175 - # 4-{1-Oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexanecarbonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 407.2 (M+H)⁺.

Example 176 - # 4-{1-Oxo-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexanecarbonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 406.2 (M+H)⁺.

Example 177 - # 4-{7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-oxo-2,7-diazaspiro[4.5]dec-2-yl} cyclohexanecarbonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 441.2 (M+H)⁺.

Example 178 - # 4-[7-(3,5-Dichloropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexanecarbonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 407.2/409.2 (M+H)⁺.

Example 179 - # 4-[7-(6-Fluoropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexanecarbonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 357.1 (M+H)⁺.

Example 180 - # (5R)-7-(2-Fluoro-4-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of (5R)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one (20 mg, 0.00007 mol, this compound was prepared by using procedures analogous to those described in example 1, steps 1-5), 4-methyl-2-fluoro-1-iodobenzene (21 mg, 0.00009 mol), sodium tert-butoxide (9.98 mg, 0.000104 mol), 1,4,7,10,13,16-hexaoxacyclooctadecane (27.4 mg, 0.000104 mol), 2-(di-tert-butylphosphino)biphenyl (0.8 mg, 0.000003 mol), tris(dibenzylideneacetone)dipalladium(0) (1 mg, 0.000001 mol), in tert-butyl alcohol (1.0 mL, 0.010 mol) was stirred at rt for 18. The crude product was purified by prep-HPLC to afford the desired product.. LC-MS: 361.1 (M+H)⁺.

Example 181 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(4-methoxyphenyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 359.1 (M+H)⁺.

Example 182 - # {4-[(5R)-2-(trazzs-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}acetonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 368.1 (M+H)⁺.

Example 183 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[3-(trifluoromethoxy)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 413.1 (M+H)⁺.

Example 184 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[3-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 397.1 (M+H)⁺.

Example 185 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[2-(trifluoromethoxy)phenyl]-2,7-diazaspiro[4.5]decan-1-one

Example 186 - # (5R)-7-(4-Chloro-2-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 377.1 (M+H)⁺.

Example 187 - # (5R)-7-(3-Chloro-2-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 188 - # (5R)-7-(2-Chloro-4-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of (5R)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one (20 mg, 0.00007 mol, this compound was prepared by using procedures analogous to those described in example 1, steps 1-5), 2,4-dichloroiodobenzene (22.7 mg, 0.0000831 mol), potassium carbonate (20.1 mg, 0.000145 mol), copper(I) iodide (0.6 mg, 0.000003 mol), and (1S,2S)-cyclohexane-1,2-diol (16.1 mg, 0.000138 mol) in tert-butyl alcohol (1.0 mL, 0.010 mol) was heated at 100 °C for 18 h. The crude product was purified by prep-HPLC to afford the desired product. LC-MS: 377.1 (M+H)⁺.

Example 189 - # 2-Fluoro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 188. LC-MS: 372.1 (M+H)⁺.

Example 190 - # (5R)-7-(2,5-Dichlorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 188. LC-MS: 397.2/399.2 (M+H)⁺.

Example 191 - # (5R)-7-(2,3-Dichlorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 192- # (5R)-7-(3,5-Difluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 188. LC-MS: 365.1 (M+H)⁺.

Example 193 - # (5R)-7-(4-Chloro-2-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 188. LC-MS: 377.1 (M+H)⁺.

Example 194 - # (5R)-7-(3-Chloro-2-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 195 - # (5R)-7-(2,6-Dichlorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 196 - # 3-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 188. LC-MS: 354.2 (M+H)⁺.

Example 197 - # (5R)-7-(2-Fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 347.1 (M+H)⁺.

Example 198 - # (5R)-7-(2-Chlorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 363.1 (M+H)⁺.

Example 199 - # (5R)-7-(4-Chloro-2-fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 381.1 (M+H)⁺.

Example 200 - # (5R)-7-(2,4-Difluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 365.1 (M+H)⁺.

Example 201 - # (5R)-7-(3-Chloro-2-fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 202 - # (trans-4-{1-Oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexyl)acetonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 421.1 (M+H)⁺.

Example 203 - # (trans-4-{1-Oxo-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexyl)acetonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 420.1 (M+H)⁺.

Example 204 - # (trans-4-{7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-oxo-2,7-diazaspiro[4.5]dec-2-yl}cyclohexyl)acetonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 455.1 (M+H)⁺.

Example 205 - # {trans-4-[7-(3,5-Dichloropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl}acetonitrile

Example 206 - # {trans-4-[7-(6-Fluoropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl}acetonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 371.1 (M+H)⁺.

Example 207 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(3,5,6-trifluoropyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

Example 208 - # (5R)-7-(4,6-Dimethoxypyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 391.1 (M+H)⁺.

Example 209 - # (5R)-7-[4-Fluoro-5-(trifluoromethyl)pyrimidin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 417.1 (M+H)⁺.

Example 210 - # (5R)-7-(2,5-Difluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 211 - # (5R)-7-[2-(Difluoromethoxy)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 395.1 (M+H)⁺.

Example 212 - # (5R)-7-(4-Fluoropyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 349.1 (M+H)⁺.

Example 213 - # (5R)-7-[4-Chloro-5-(trifluoromethyl)pyrimidin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 433.1 (M+H)⁺.

Example 214 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-quinazolin-4-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 381.1 (M+H)⁺.

Example 215 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(6-methoxypyridin-3-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 360.1 (M+H)⁺.

Example 216 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[6-(methylamino)-9H-purin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 400.1 (M+H)⁺.

Example 217 - # tert-Butyl (trans-4-{1-oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl}cyclohexyl)carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 497.1 (M+H)⁺.

Example 218-a - * 7-{[4-(2-Chlorophenyl)piperazin-1-yl]carbonyl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 475.1 (M+H)⁺.

Example 218-b - * 2-(trans-4-Hydroxycyclohexyl)-7-({4-[2-(trifluoromethyl)quinolin-4-yl]piperazin-1-yl}carbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 560.1 (M+H)⁺.

Example 219 - * 2-(trans-4-Hydroxycyclohexyl)-7-({4-[3-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}carbonyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 510.1 (M+H)⁺.

Example 220 - * 2-(trans-4-Hydroxycyclohexyl)-7-{[4-(2-methylphenyl)piperazin-1-yl]carbonyl}-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 455.1 (M+H)⁺.

Example 221 - * 7-{[4-(3,4-Dichlorophenyl)piperazin-1-yl]carbonyl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 509.1 (M+H)⁺.

Example 222 - * 2-(trans-4-Hydroxycyclohexyl)-7-({4-[3-(trifluoromethyl)phenyl]piperazin-1-yl}carbonyl)-2,7-diazaspiro[4.5]decan-1-one

Example 223 - * 7-[(4-Biphenyl-4-ylpiperazin-1-yl)carbonyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 517.1 (M+H)⁺.

Example 224 - * 2-(trans-4-Hydroxycyclohexyl)-7-({4-[5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}carbonyl)-2,7-diazaspiro[4.5]decan-1-one

Example 225 - * 2-(trans-4-Hydroxycyclohexyl)-7-{[4-(2-methoxyphenyl)piperazin-1-yl]carbonyl}-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 471.1 (M+H)⁺.

Example 226 - * 2-(trans-4-Hydroxycyclohexyl)-7-[(4-pyridin-2-ylpiperazin-1-yl)carbonyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 442.1 (M+H)⁺.

Example 227 - * 7-{[4-(4-Chlorophenyl)piperazin-1-yl]carbonyl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 228 - * 7-{[4-(2-Ethoxyphenyl)piperazin-1-yl]carbonyl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 485.1 (M+H)⁺.

Example 229 - * 2-(trans-4-Hydroxycyclohexyl)-7-{[4-(3-methoxyphenyl)piperazin-1-yl]carbonyl}-2,7-diazaspiro[4.5]decan-1-one

Example 230 - * 2-(trans-4-Hydroxycyclohexyl)-7-{[4-(3-methylphenyl)piperazin-l-yl]carbonyl}-2,7-diazaspiro[4.5]decan-1-one

Example 231 - * 7-{[4-(3-Chlorophenyl)piperazin-1-yl]carbonyl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 232 - * 2-(trans-4-Hydroxycyclohexyl)-7-{[4-(4-methoxyphenyl)piperazin-1-yl]carbonyl}-2,7-diazaspiro[4.5]decan-1-one

Example 233 - * 4-(4-{[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]carbonyl}piperazin-1-yl)benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 48. LC-MS: 466.1 (M+H)⁺.

Example 234 - * 7-{[4-(3,5-Dichloropyridin-4-yl)piperazin-1-yl]carbonyl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 235 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(1,3-thiazol-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 336.2 (M+H)⁺.

Example 236 - * 2-(trans-4-Hydroxycyclohexyl)-7-({4-[4-(trifluoromethyl)phenyl]piperazin-1-yl}carbonyl)-2,7-diazaspiro[4.5]decan-1-one

Example 237 - * 7-(3,5-Dichloropyridin-2-yl)-2-(4-hydroxy-1-adamantyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 451.1 (M+H)⁺.

Example 238 - * Propyl {3-fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 500.2 (M+H)⁺.

Example 239 - * 2-(4-Hydroxy-1-adamantyl)-7-[3-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 450.2 (M+H)⁺.

Example 240 - * Ethyl {3-fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 486.2 (M+H)⁺.

Example 241 - * 7-(3,5-Difluoropyridin-2-yl)-2-(4-hydroxy-1-adamantyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 418.2 (M+H)⁺.

Example 242 - * 3-Fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 424.2 (M+H)⁺.

Example 243 - * 2-[2-(4-Hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

Example 244 - * 4-[2-(4-Hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

Example 245 - * N-{3-Fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 482.2 (M+H)⁺.

Example 246 - * 2-(4-Hydroxy-1-adamantyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 247 - * 7-(5-Ethylpyrimidin-2-yl)-2-(4-hydroxy-1-adamantyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 411.2 (M+H)⁺.

Example 248 - * 7-(3-Fluoropyridin-2-yl)-2-(4-hydroxy-1-adamantyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 400.2 (M+H)⁺.

Example 249 - * N-{3-Fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 456.2 (M+H)⁺.

Example 250 - * N-{3-Fluoro-4-[2-(4-1hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}propanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 470.2 (M+H)⁺.

Example 251 - * N-{3-Fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}methanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 492.2 (M+H)⁺.

Example 252 - # (5R)-7-(2,3-Difluorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 365.2 (M+H)⁺.

Example 253 - # (5R)-7-(3-Fluorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 347.3 (M+H)⁺.

Example 254 - # 5R)-7-(2-Chloro-3-fluorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 381.2 (M+H)⁺.

Example 255 - # (5R)-7-(4-Fluorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 347.2 (M+H)⁺.

Example 256 - # (5R)-7-[3-Chloro-5-(2-oxo-1,3-oxazinan-3-yl)pyridin-2-yl]-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

3-Chloropropyl chloridocarbonate (15.1 µL, 0.000125 mol) was added to a mixture of (5R)-7-(5-amino-3-chloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one (37.89 mg, 0.0001000 mol, this compound was prepared by using procedures analogous to those described for the synthesis of example 105, step 1) and 4-dimethylaminopyridine (18.3 mg, 0.000150 mol) in DMF (1.00 mL). After stirring the mixture for 1 h, 1.0000 M of potassium tert-butoxide in tetrahydrofuran (0.375 mL) was added and the resultant mixture was stirred at rt for 2 h. The mixture was diluted with methanol (0.8 mL) and was adjusted to pH = 2.0 with TFA. The resulting solution was purified by prep.-HPLC to give the desired product. LC-MS: 463.1 (M+H)⁺.

Example 257 - # (5R)-7-(3,4'-Bipyridin-6-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Sodium carbonate (10.6 mg, 0.000100 mol) in water(0.10 mL) was added to a mixture of (5R)-7-(5-bromopyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one (20.4 mg, 0.0000500 mol, this compound was prepared by using a procedure that was analogous to the one described for the synthesis of example 93) in NMP (0.25 mL), 4-pyridinylboronic acid (9.22 mg, 0.0000750 mol) and tetrakis(triphenylphosphine) palladium(0) (1.7 mg, 0.0000015 mol) in toluene (200.0 µL, 0.001878 mol) and ethanol (100.000 µL, 1.71267E-3 mol). The resulting mixture was heated at 120 °C for 20 min. The mixture was filtered and the filtrate was diluted with methanol and adjusted to pH = 2 with TFA. The resulting solution was purified by prep.-HPLC to give the desired product. LC-MS: 407.2 (M+H)⁺.

Example 258 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(6'-methoxy-3,3'-bipyridin-6-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 437.3 (M+H)⁺.

Example 259 - # 4-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}-N,N-dimethylbenzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 477.3 (M+H)⁺.

Example 260 - # 4-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 449.3 (M+H)⁺.

Example 261 - # N-Cyclopropyl-4-{6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 489.3 (M+H)⁺.

Example 262 - # N-(4-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}phenyl)acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 463.3 (M+H)⁺.

Example 263 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(4-methoxyphenyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 436.3 (M+H)⁺.

Example 264 - # (5R)-7-[5-(4-Fluorophenyl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 424.2 (M+H)⁺.

Example 265 - # (5R)-7-(3,3'-Bipyridin-6-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 407.3 (M+H)⁺.

Example 266 - # (5R)-7-(6'-Fluoro-3,3'-bipyridin-6-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 425.3 (M+H)⁺.

Example 267 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(5-pyrimidin-5-ylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 408.3 (M+H)⁺.

Example 268 - # 3-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}benzamide

Example 269 - # N-(3-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}phenyl)acetamide

Example 270 - # (5R)-7-[5-(3,5-Dimethylisoxazol-4-yl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 271 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(1-methyl-1H-pyrazol-4-yl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 410.3 (M+H)⁺.

Example 272 - # 4-{2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrimidin-5-yl}-N,N-dimethylbenzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 478.2 (M+H)⁺.

Example 273 - # (5R)-2-(trans-4-Methoxycyclohexyl)-7-[3-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 412.2 (M+H)⁺.

Example 274 - # N-Cyclopropyl-4-{2-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrimidin-5-yl}benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 490.2 (M+H)⁺.

Example 275 - # (5R)-7-(5-Chloro-3,3'-bipyridin-6-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 441.2 (M+H)⁺.

Example 276 - # (5R)-7-(5-Bromopyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 409.1/411.1 (M+H)⁺.

Example 277 - # (5R)-7-[3-Chloro-5-(1-methyl-1H-pyrazol-4-yl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 444.2 (M+H)⁺.

Example 278 - # 4-{2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrimidin-5-yl}benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 450.2 (M+H)⁺.

Example 279 - # (5R)-7-(3,5-Difluoropyridin-2-yl)-2-(trans-4-methoxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 380.2 (M+H)⁺.

Example 280 - # (5R)-7-(5-Chloro-3,4'-bipyridin-6-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 281 - # (5R)-7-(5-Ethylpyrimidin-2-yl)-2-(trans-4-methoxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 373.3 (M+H)⁺.

Example 282 - * tert-Butyl 5-chloro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3',6'-dihydro-3,4'-bipyridine-1'(2'H)-carboxylate

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 545.3 (M+H)⁺.

Example 283 - # (5R)-7-(5-Fluoropyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 349.2 (M+H)⁺.

Example 284 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[4-(2-oxo-1,3-oxazolidin-3-yl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 414.3 (M+H)⁺.

Example 285 - # (5R)-7-[2-Fluoro-4-(2-oxo-1,3-oxazolidin-3-yl)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 432.2 (M+H)⁺.

Example 286 - # (5R)-7-[2-Fluoro-4-(2-oxopyrrolidin-1-yl)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 430.3 (M+H)⁺.

Example 287 - # (5R)-7-[3-Chloro-5-(2-oxopyrrolidin-1-yl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 447.3 (M+H)⁺.

Example 288 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[4-(2-oxopyrrolidin-1-yl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 412.2 (M+H)⁺.

Example 289 - # (5R)-7-[3-Chloro-5-(2-oxo-1,3-oxazolidin-3-yl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 449.1 (M+H)⁺.

Example 290 - # (5R)-7-(2-Fluoro-4-pyrrolidin-1-ylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of 1,4-diiodobutane (13.5 µL, 0.000100 mol), (5R)-7-(4-amino-2-fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one (28.9 mg, 0.0000800 mol, this compound was prepared by using procedures analogous to that described for the synthesis of example 105, step 1) and 4-dimethylaminopyridine (14.7 mg, 0.000120 mol) in DMF (1.00 mL), and potassium iodide (1.5 mg, 0.0000090 mol) was heated at 110 °C by microwave for 15 min. The mixture was diluted with methanol (0.8 mL) and was adjusted to be acidic with TFA ( the pH was about 2.0). The resulting solution was purified by prep-HPLC to give the desired product. LC-MS: 416.2 (M+H)⁺.

Example 291 - # (5R)-7-(3-Chloro-5-pyrrolidin-1-ylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 290. LC-MS: 433.2 (M+H)⁺.

Example 292 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(5-pyrrolidin-1-ylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 290. LC-MS: 499.2 (M+H)⁺.

Example 293 - # (5R)-7-[2-Fluoro-4-(2-oxo-piperidin-1-yl)-phenyl]-2-(trans-4-hydroxy-cyclohexyl)-2,7-diaza-spiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 444.3 (M+H)⁺.

Example 294 - # (5R)-7-[2-Fluoro-4-(2-oxo-1,3-oxazinan-3-yl)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 446.3 (M+H)⁺.

Example 295 - # (5R)-2-(trans-4-hydroxycyclohexyl)-7-[4-(2-oxopiperidin-1-yl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 426.3 (M+H)⁺.

Example 296 - # (5R)-7-(1,3-Benzothiazol-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 386.2 (M+H)⁺.

Example 297 - # 2-[(5R)-2-(trans-4-Methoxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 369.2 (M+H)⁺.

Example 298 - # (5R)-2-(trans-4-Methoxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 299 - # (5R)-7-(5-Fluoropyrimidin-2-yl)-2-(trans-4-methoxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 363.2 (M+H)⁺.

Example 300 - # (5R)-7-{3-Chloro-5-[4-(trifluoromethoxy)phenyl]pyridin-2-yl}-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 524.2 (M+H)⁺.

Example 301 - # (5R)-7-(2-Chloro-9H-purin-6-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 405.2 (M+H)⁺.

Example 302 - # (5R)-7-(4-Amino-5-fluoropyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 464.2 (M+H)⁺.

Example 303 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide

Example 304 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclobutanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 444.3 (M+H)⁺.

Example 305 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopentanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 458.3 (M+H)⁺.

Example 306 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclohexanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 472.3 (M+H)⁺.

Example 307 - # Ethyl {3-fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

Example 308 - # Propyl {3-fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

Example 309 - # Isobutyl {3-fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 462.3 (M+H)⁺.

Example 310 -# N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}propanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 418.3 (M+H)⁺.

Example 311 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}-2-methylpropanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 432.3 (M+H)⁺.

Example 312 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}methanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 440.2 (M+H)⁺.

Example 313 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}ethanesulfonamide

Example 314 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[3-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 398.2 (M+H)⁺.

Example 315 - # Ethyl [4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 484.3 (M+H)⁺.

Example 316 - # Methyl [4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

Example 317 - # Propyl [4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 498.3 (M+H)⁺.

Example 318 - # Isobutyl [4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 512.3 (M+H)⁺.

Example 319 - # Isopropyl [4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]carbamate

Example 320 - # N-[4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]cyclopropanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 480.3 (M+H)⁺.

Example 321 - # N-[4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]cyclobutanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 494.3 (M+H)⁺.

Example 322 - # N-[4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]cyclopentanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 508.3 (M+H)⁺.

Example 323 - # N-[4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]methanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 490.2 (M+H)⁺.

Example 324 - # N-[4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 454.3 (M+H)⁺.

Example 325 - # N-[4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]propanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 468.3 (M+H)⁺.

Example 326 - # N-[4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-(trifluoromethyl)phenyl]-2-methylpropanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 482.3 (M+H)⁺.

Example 327 - # (5R)-7-[2-Fluoro-4-(pyridin-2-yloxy)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 440.3 (M+H)⁺.

Example 328 - # Methyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Example 329 - # Ethyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Example 330 - # Propyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Example 331 - # Isobutyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 445.3 (M+H)⁺.

Example 332 - # Isopropyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Example 333 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl} cyclopropanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 413.3 (M+H)⁺.

Example 334 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl} cyclobutanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 427.3 (M+H)⁺.

Example 335 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl} cyclopentanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 441.3 (M+H)⁺.

Example 336 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 387.3 (M+H)⁺.

Example 337 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}propanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 401.3 (M+H)⁺.

Example 338 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}-2-methylpropanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 415.3 (M+H)⁺.

Example 339 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl} cyclohexanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 455.3 (M+H)⁺.

Example 340 - # Methyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methylpyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 417.1 (M+H)⁺.

Example 341 - # Ethyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methylpyridin-3-yl} carbamate

Example 342 - # Propyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methylpyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 445.1 (M+H)⁺.

Example 343 - # Methyl {3-cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 427.2 (M+H)⁺.

Example 344 - # Ethyl {3-cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

Example 345 - # Propyl {3-cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

Example 346 - # Isobutyl {3-cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 469.3 (M+H)⁺.

Example 347 - # Isopropyl {3-cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

Example 348 - # N-{3-Cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 437.3 (M+H)⁺.

Example 349 - # N-{3-Cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclobutanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 451.3 (M+H)⁺.

Example 350 - # N-{3-Cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopentanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 465.3 (M+H)⁺.

Example 351 - # N-{3-Cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 425.3 (M+H)⁺.

Example 352 - # N-{3-Cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}propanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 439.3 (M+H)⁺.

Example 353 - # N-{3-Cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}-2-methylpropanamide

Example 354 - # N-{3-Cyano-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclohexanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 479.3 (M+H)⁺.

Example 355 - # Methyl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}carbamate

Example 356 - # Ethyl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}carbamate

Example 357 - # Propyl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}carbamate

Example 358 - # Isobutyl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}carbamate

Example 359 - # Isopropyl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}carbamate

Example 360 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}cyclopropanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 426.3 (M+H)⁺.

Example 361 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}cyclobutanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 440.3 (M+H)⁺.

Example 362 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}cyclopentanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 454.4 (M+H)⁺.

Example 363 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}cyclohexanecarboxamide

Example 364 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl} acetamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 400.3 (M+H)⁺.

Example 365 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}propanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 414.3 (M+H)⁺.

Example 366 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}-2-methylpropanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 428.3 (M+H)⁺.

Example 367 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)quinolin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 448.3 (M+H)⁺.

Example 368 - # (5R)-7-(3-Chloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 364.2 (M+H)⁺.

Example 369 - # (5R)-7-[3-Fluoro-4-(trifluoromethyl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 354.2 (M+H)⁺.

Example 370 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(3,5,6-trifluoro-4-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

Example 371 - # 2,3,5-Trifluoro-6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]isonicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 409.2 (M+H)⁺.

Example 372 - # (5R)-7-(3,5-Difluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 366.2 (M+H)⁺.

Example 373 - # (SR)-2-(trans-4-hydroxycyclohexyl)-7-[4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 374 - # (5R)-7-(3-Fluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 348.2 (M+H)⁺.

Example 375 - # (5R)-7-(5-Chloro-3-fluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 382.1 (M+H)⁺.

Example 376 - # (5R)-7-(3-Ethynylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of (5R)-2-(trans-4-hydroxycyclohexyl)-7-{3-[(trimethylsilyl)ethynyl]pyridin-2-yl}-2,7-diazaspiro[4.5]decan-1-one (10 mg, 0.00002 mol, this compound was prepared by using procedures analogous to those described for the synthesis of example 93), lithium hydroxide monohydrate (1.1 mg, 0.000026 mol) in tetrahydrofuran (0.5 mL, 0.006 mol) and a couple of drops of water was stirred at rt for 30 min. The crude reaction mixture was purified by prep-HPLC to afford 7.2 mg of the desired product. LC-MS: 354.2 (M+H)⁺.

Example 377 - # 7-(2-fluoro-4-nitrophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 43. LC-MS: 392.2 (M+H)⁺.

Example 378 - # 2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-6-methylnicotinonitrile

Example 379 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-quinolin-2-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 380.3 (M+H)⁺.

Example 380 - # 2-(trans-4-Hydroxycyclohexyl)-7-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 412.3 (M+H)⁺.

Example 381 - # (5R)-7-(3-Fluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 382 - # 7-(5-Ethylpyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 359.3 (M+H)⁺.

Example 383 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(3-methylquinolin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 394.3 (M+H)⁺.

Example 384 - # N-{4-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}methanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 422.2 (M+H)⁺.

Example 385 - # (5R)-7-[2-Fluoro-4-(pyridin-4-yloxy)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 440.2 (M+H)⁺.

Example 386 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(hydroxymethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 387 - # 6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N-methylnicotinamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 387.3 (M+H)⁺.

Example 388 - # (5R)-7-(3-Fluoropyridin-4-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 348.3 (M+H)⁺.

Example 389 - # (5R)-7-(2-Chloropyridin-4-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 390 - # N-{3-Fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}-N-methylmethanesulfonamide

A mixture of N-{3-fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}methanesulfonamide (20 mg, 0.00006 mol, example 312), methyl iodide (4.1 µL, 0.000066 mol), and potassium carbonate (10 mg, in excess) in acetone (2 mL, 0.03 mol) was stirred at rt for 2 h and then heated to 40 °C for 2 h. The reaction mixture was allowed to cool to rt and was purified by prep- HPLC to afford the desired product. LC-MS: 454.2 (M+H)⁺.

Example 391 - # N-{6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}-2-methylpropanamide

Example 392 - # 7-(2-Chloropyrimidin-4-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 365.2 (M+H)⁺.

Example 393 - # 6-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N,N-dimethylnicotinamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 29. LC-MS: 401.2 (M+H)⁺.

Example 394 - # Ethyl {2-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-6-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 447.2 (M+H)⁺.

Example 395 - # Methyl {2-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-6-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 433.2 (M+H)⁺.

Example 396 - # N-{2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-6-methoxypyridin-3-yl}acetamide

Example 397 - # 5-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N-methylpyridine-2-carboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 387.2 (M+H)⁺.

Example 398 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(3-methoxypyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 360.2 (M+H)⁺.

Example 399 - * 2-[8-(trans-4-Hydroxycyclohexyl)-7-oxo-2,8-diazaspiro[5.5]undec-2-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 92. LC-MS: 369.2 (M+H)⁺.

Example 400 - * 2-(trans-4-Hydroxycyclohexyl)-8-[3-(trifluoromethyl)pyridin-2-yl]-2,8-diazaspiro[5.5]undecan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 92. LC-MS: 412.2 (M+H)⁺.

Example 401 - * 3-Cyclohexyl-7-[5-(trifluoromethyl)pyridin-2-yl]-1,3,7-triazaspiro[4.5]decane-2,4-dione

Step 1. tert-butyl 3-oxopiperidine-1-carboxylate

To a solution of pyridinium chlorochromate (3.21 g, 0.0149 mol) in methylene chloride (18 mL) was added another solution of tert-butyl 3-hydroxypiperidine-1-carboxylate (1.00 g, 0.00497 mol) in 7 mL methylene chloride at rt. After stirring for 18 h, the reaction mixture was diluted with diethyl ether, filtered through a bed of celite, concentrated in-vacuo, and then purified by Combiflash to afford the desired product verified by NMR.

Step 2. tert-butyl 2,4-dioxo-1,3,7-triazaspiro[4.5]decane-7-carboxylate

A mixture of tert-butyl 3-oxopiperidine-1-carboxylate (0.20 g, 0.0010 mol), potassium cyanide (0.13 g, 0.0020 mol) and ammonium carbonate (0.77 g, 0.0080 mol) in ethanol (4.0 mL, 0.068 mol) and water (2.0 mL) was stirred at 70 °C for 4 h. The mixture was then diluted with ethyl acetate and washed with water, brine, dried and concentrated to give the desired product. LC-MS: 292.0 (M+Na)⁺.

Step 3. tert-butyl 3-cyclohexyl-2,4-dioxo-1,3,7-triazaspiro[4.5]decane-7-carboxylate

Diethyl azodicarboxylate (0.315 mL, 0.00200 mol) was added to a mixture of tert-butyl 2,4-dioxo-1,3,7-triazaspiro[4.5]decane-7-carboxylate (269.3 mg, 0.001000 mol), cyclohexanol (0.156 mL, 0.00150 mol), and triphenylphosphine (524 mg, 0.00200 mol) in tetrahydrofuran (6 mL, 0.08 mol). The reaction mixture was stirred at room temperature overnight. The mixture was concentrated and the residue was purified by Combiflash with ethyl acetate/heaxane. LC-MS: 296.2 (M - Bu + 2H)⁺.

Step 4. 3-cyclohexyl-7-[5-(trifluoromethyl)pyridin-2-yl]-1,3,7-triazaspiro[4.5]decane-2,4-dione

This compound was prepared by using procedures analogous to those described for the synthesis of example 92, steps 3 and 4. LC-MS: 397.2 (M+H)⁺.

Example 402 - * 6-(3-cyclohexyl-2,4-dioxo-1,3,7-triazaspiro[4.5]dec-7-yl)nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 401. LC-MS: 354.2 (M+H)⁺.

Example 403 - * 4-(3-Cyclohexyl-2,4-dioxo-1,3,7-triazaspiro[4.5]dec-7-yl)-3-fluorobenzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 401. LC-MS: 393.1 (M+Na)⁺, 371.1 (M+H)⁺.

Example 404 - * 3-Cyclohexyl-7-(5-ethylpyrimidin-2-yl)-1,3,7-triazaspiro[4.5]decane-2,4-dione

This compound was prepared by using procedures analogous to those described for the synthesis of example 401. LC-MS: 358.1 (M+H)⁺.

Example 405 - * 3-Cyclohexyl-7-(3-fluoropyridin-2-yl)-1,3,7-triazaspiro[4.5]decane-2,4-dione

This compound was prepared by using procedures analogous to those described for the synthesis of example 401. LC-MS: 347.1 (M+H)⁺.

Example 406 - * 3-Cyclohexyl-7-(3,5-difluoropyridin-2-yl)-1,3,7-triazaspiro[4.5]decane-2,4-dione

This compound was prepared by using procedures analogous to those described for the synthesis of example 401. LC-MS: 365.2 (M+H)⁺.

Example 407 - * 3-Cyclohexyl-7-(3,5-dichloropyridin-2-yl)-1,3,7-triazaspiro[4.5]decane-2,4-dione

This compound was prepared by using procedures analogous to those described for the synthesis of example 401. LC-MS: 397.1/399.1 (M+H)⁺.

Example 408 - * 2-(3-Methylpyridin-2-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 92. LC-MS: 391.2 (M+H)⁺.

Example 409 - * N,N-Dimethyl-5-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]pyridine-2-carboxamide

Example 410 - * 3-Fluoro-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 43. LC-MS: 358.2 (M+H)⁺.

Example 411 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(6-methoxy-2-methylpyridin-3-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 374.2 (M+H)⁺.

Example 412 - # (5R)-2-(4-Hydroxycyclohexyl)-7-(6-methoxy-4-methylpyridin-3-yl)-2,7-diazaspiro[4.5]decan-1-one

Example 413 - # (5R)-7-(2,6-Difluorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 365.2 (M+H)⁺.

Example 414 - * 7-(5-Chloropyridin-2-yl)-2-(4-hydroxy-1-adamantyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 416.2 (M+H)⁺.

Example 415 - * 7-(3-Fluoropyridin-4-yl)-2-(4-hydroxy-1-adamantyl)-2,7-diazaspiro[4.5]decan-1-one

Example 416 - * N-{3-Fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}propanamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 470.1 (M+H)⁺.

Example 417 - * Methyl {3-fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 472.1 (M+H)⁺.

Example 418 - * Propyl {3-fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 500.1 (M+H)⁺.

Example 419 - * N-{3-Fluoro-4-[2-(4-hydroxy-1-adamantyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}ethanesulfonamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 506.1 (M+H)⁺.

Example 420 - # 2-[(5R)-2-(cis-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

Step 1. benzyl (5R)-2-[cis-4-(benzoyloxy)cyclohexyl]-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate

Diethyl azodicarboxylate (163.0 µL, 0.001035 mol) was added to a mixture of benzyl (5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (200.0 mg, 0.0005175 mol, this compound was prepared by using procedures analogous to those described for the synthesis of example 1, steps 1-4), and triphenylphosphine (271.4 mg, 0.001035 mol) in tetrahydrofuran (3.0 mL, 0.037 mol) at rt. The mixture was stirred at rt for 5 minutes, then benzoic acid (66.36 mg, 0.0005434 mol) was added. After stirring for additional 2 h, the volatiles in the mixture were removed in-vacuo and the residue was purified by flash chromatography to afford the desired product.

Step 2. cis-4-[(5R)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl benzoate

Benzyl (5R)-2-[cis-4-(benzoyloxy)cyclohexyl]-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (0.16 g, 0.00033 mol) in methanol (5 mL, 0.1 mol) was stirred with palladium (20 mg, 0.00002 mol) under an atmosphere of hydrogen for 2 h. The mixture was filtered and the filtrate was concentrated to afford the desired product. LC-MS: 357.2 (M+H)⁺.

Step 3. 2-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

A mixture of cis-4-[(5R)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl benzoate (19.0 mg, 0.0000533 mol), 2-chloronicotinonitrile (8.12 mg, 0.0000586 mol) and N,N-diisopropylethylamine (20.0 µL, 0.000115 mol) in N-methylpyrrolidinone (0.6 mL, 0.006 mol) was irradiated by microwaves at 180 °C for 20 min. After cooling to rt, lithium hydroxide aqueous solution (1.0 M, 0.150 mL) was added, followed by methanol (0.2 mL). The mixture was heated at 100 °C for 5 h. The crude reaction mixture was then purified by prep-HPLC under basic conditions to afford the desired product. LC-MS: 355.2 (M+H)⁺.

Example 421 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[3-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 398.2 (M+H)⁺.

Example 422 - # (5R)-7-(3-Fluoropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 348.2 (M+H)⁺.

Example 423 - # (5R)-7-(3,5-Dichloropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 398.1/400.2 (M+H)⁺.

Example 424 - # (5R)-7-(5-Chloro-3-fluoropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 382.2 (M+H)⁺.

Example 425 - # (5R)-7-(3-Chloropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 364.2 (M+H)⁺.

Example 426 - # Methyl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-2-methylphenyl}carbamate

Example 427 - # Ethyl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-2-methylphenyl}carbamate

Example 428 - # Prop-2-yn-1-yl {4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-2-methylphenyl}carbamate

Example 429 - # Methyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-4-methylpyridin-3-yl} carbamate

Example 430 - # Ethyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-4-methylpyridin-3-yl} carbamate

Example 431 - # Prop-2-yn-1-yl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-4-methylpyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 441.2 (M+H)⁺.

Example 432 - # Methyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 433.3 (M+H)⁺.

Example 433 - # Ethyl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 447.3 (M+H)⁺.

Example 434 - # Prop-2-yn-1-yl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

Example 435 - # Methyl {5-fluoro-2-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrimidin-4-yl}carbamate

Example 436 - # Isopropyl {3-fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}methylcarbamate

A mixture of isopropyl {3-fluoro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate (6 mg, 0.00001 mol, this compound was prepared by using procedures analogous to those described for the synthesis of example 105), methyl iodide (0.5 mL, 0.008 mol), and potassium carbonate (6 mg, 0.00004 mol) was stirred at rt for 24 h at 60 °C. After cooling, the reaction mixture was purified by prep.-HPLC to afford the desired product. LC-MS: 462.3 (M+H)⁺.

Example 437 - # (5R)-7-(3-Bromo-5-methylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 422.2/424.2 (M+H)⁺.

Example 438 - * 2-[(5R)-2-Cyclohexyl-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 339.2 (M+H)⁺.

Example 439 - # 2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-l-oxo-2,7-diazaspiro[4.5]dec-7-yl]isonicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 355.2 (M+H)⁺.

Example 440 - # (5R)-7-(3-Fluoro-6-methylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 441 - # 6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-2-methylnicotinonitrile

Example 442 - # 2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-4,6-dimethylnicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 383.2 (M+H)⁺.

Example 443 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[2-(trifluoromethyl)quinazolin-4-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 449.1 (M+H)⁺.

Example 444 - * (5R)-2-Cyclohexyl-7-[2-fluoro-4-(2-oxo-1,3-oxazolidin-3-yl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 416.1 (M+H)⁺.

Example 445 - * (5R)-2-Cyclohexyl-7-[2-fluoro-4-(2-oxopyrrolidin-1-yl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 414.1 (M+H)⁺.

Example 446 - * (5R)-7-(3-Fluoropyridin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 334.1 (M+H)⁺.

Example 447 - * (5R)-7-[2-Fluoro-4-(2-oxo-1,3-oxazolidin-3-yl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 418.1 (M+H)⁺.

Example 448 - * (5R)-7-[2-Fluoro-4-(2-oxo-1,3-oxazinan-3-yl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

Example 449 - * (5R)-7-[2-Fluoro-4-(2-oxopiperidin-1-yl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 430.2 (M+H)⁺.

Example 450 - * (5R)-7-[2-Fluoro-4-(2-oxopyrrolidin-1-yl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 416.2 (M+H)⁺.

Example 451 - * 3-Fluoro-N-methyl-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 390.2 (M+H)⁺.

Example 452 - * 3-Fluoro-N,N-dimethyl-4-[(5R)-1-oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 404.2 (M+H)⁺.

Example 453 - * 2-[(5R)-1-Oxo-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 340.2 (M+H)⁺.

Example 454 - * (5R)-7-(3,5-Dichloropyridin-2-yl)-2-(3-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

Example 455 - # 3-Bromo-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 432.1/434.1 (M+H)⁺.

Example 456 - # (5R)-7-(2,5-difluorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 457 - # (5R)-7-(2-Bromo-3-fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 425.1/427.1 (M+H)⁺.

Example 458 - # (5R)-7-(5-Fluoro-2-methylphenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 361.2 (M+H)⁺.

Example 459 - # (5R)-7-(2,3-Dichlorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 397.1/399.1 (M+H)⁺.

Example 460 - # (5R)-7-(2,6-Dichlorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 461 - # 4-Bromo-2-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 432.1 (M+H)⁺.

Example 462 - # 2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 44. LC-MS: 354.2 (M+H)⁺.

Example 463 - # (5R)-7-(2-Fluorophenyl)-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 464 - # 2-[(5R)-2-(cis-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]isonicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 355.2 (M+H)⁺.

Example 465 - # (5R)-7-(3-Bromo-5-fluoropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 426.1/428.1 (M+H)⁺.

Example 466 - # (5R)-7-(3-Fluoro-4-methylpyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 362.2 (M+H)⁺.

Example 467 - # 6-[(5R)-2-(cis-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-2-methylnicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 369.2 (M+H)⁺.

Example 468 - # (5R)-7-(5-Chloro-3-methylpyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 378.1 (M+H)⁺.

Example 469 - # 4-Chloro-2-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 388.1 (M+H)⁺.

Example 470 - # 2-Fluoro-4-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 372.1 (M+H)⁺.

Example 471 - # 4-Bromo-2-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 432.1 (M+H)⁺.

Example 472 - * 7-[(3-Chloro-2-methylphenyl)sulfonyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 1. LC-MS: 441.2/443.2 (M+H)⁺.

Example 472-a - # (5R)-7-[2-Chloro-5-(trifluoromethyl)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Step 1. Benzyl (5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate

A mixture of 1-benzyl 3-ethyl 3-(2-oxoethyl)piperidine-1,3-dicarboxylate (1.0 g, 0.0030 mol, prepared by using procedures analogous to those described for the synthesis of example 1, steps 1 and 2), trans-4-aminocyclohexanol hydrochloride (0.50 g, 0.0033 mol), and triethylamine (0.48 g, 0.0048 mol) in 1,2-dichloroethane (8 mL, 0.1 mol) was stirred at rt for 30 min. To the mixture was added sodium triacetoxyborohydride (1.6 g, 0.0075 mol) and the resulting mixture was stirred at rt for 1 h. The reaction mixture then was warmed to 80 °C with stirring for 16 h. After cooling to ambient temperature, the reaction mixture was diluted with dichloromethane and the solution was washed with 1N HCl, water, brine, and dried over MgSO₄. After filtration, the filtrate was concentrated in-vacuo and the resulting residue was purified by flash column chromatography to afford 1.04 g of the desired product. Further purification by chiral HPLC led to the isolation of both diastereoisomers. The first peak to elute was assigned the S configuration and the second peak was assigned as the R configuration. LC-MS: 387.3 (M+H)⁺.

Step 2. Benzyl (5R)-1-oxo-2-{trans-4-[(triethylsilyl)oxy]cyclohexyl}-2,7-diazaspiro[4.5]decane-7-carboxylate

To a solution of benzyl (5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (2.0 g, 0.0052 mol) in N,N-dimethylformamide (5 mL, 0.06 mol) were added 1H-imidazole (0.986 g, 0.0145 mol) and chlorotriethylsilane (1.13 mL, 0.00673 mol) at rt. After stirring for 2 h ice-water was added and the resulting mixture was stirred at room temperature for 30 minutes and extracted three times with AcOEt. The combined extracts were washed with brine, dried over sodium sulfate, and concentrated. The residual oil was purified by column chromatography using 30% by volume AcOEt in hexanes.

Step 3. (5R)-2-{trans-4-[(triethylsilyl)oxo]cyclohexyl}-2,7-diazaspiro[4.5]decan-1-one

To a solution of benzyl (5R)-1-oxo-2-{trans-4-[(triethylsilyl)oxy]cyclohexyl}-2,7-diazaspiro[4.5]decane-7-carboxylate (2.4 g, 0.0048 mol) in methanol (10 mL, 0.2 mol) was added Pd/C, and the suspension was stirred at rt under a H₂ balloon for 1.5 h. The inorganics were filtered and the filtrate was concentrated to afford the desired product.

Step 4. (5R)-7-[2-chloro-5-(trifluoromethyl)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

A mixture of aryl bromide, tris(dibenzylideneacetone)dipalladium(0) (2 mg, 0.000002 mol), 2'-(dicyclohexylphosphino)-N,N-dimethylbiphenyl-2-amine (5 mg, 0.00001 mol) in 1,4-dioxane (0.5 mL, 0.006 mol) was stirred under N₂ (g) for 20 min. To this were added (5R)-2-{trans-4-[(triethylsilyl)oxy]cyclohexyl}-2,7-diazaspiro[4.5]decan-1-one (30 mg, 0.00008 mol) and sodium tert-butoxide (11.8 mg, 0.000123 mol), and the resulting mixture was degassed and stirred at 100 °C for 16 h. At this time 1M TBAF in THF (0.3 mL) was added dropwise to the reaction mixture and the solution was stirred at rt for 1 h. The volatiles were removed in-vacuo and the residue was purified by prep-HPLC to afford the desired product. LC-MS: 431.1 (M+H)⁺.

Example 473 - # (5R)-7-[3-Fluoro-5-(trifluoromethyl)phenyl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 472-a. LC-MS: 415.1 (M+H)⁺.

Example 474 - # (5R)-7-(4-Chloro-2-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 472-a. LC-MS: 377.4 (M+H)⁺.

Example 475 - # (5R)-7-(3-chloro-2-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 476 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-quinolin-8-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 472-a. LC-MS: 380.2 (M+H)⁺.

Example 477 - # {3-[(5R)-2-(trans-4-Hydroxycyclohexyl)-l-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}acetonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 472-a. LC-MS: 354.2 (M+H)⁺.

Example 478 - # (5R)-7-(4-Fluoro-2-methylphenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 361.2 (M+H)⁺.

Example 479 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[4-(2-oxopyrrolidin-1-yl)-2-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 480.2 (M+H)⁺.

Example 480 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[4-(2-oxo-1,3-oxazolidin-3-yl)-2-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 482.2 (M+H)⁺.

Example 481 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[4-(2-oxo-1,3-oxazinan-3-yl)-2-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 496.2 (M+H)⁺.

Example 482 - # (5R)-7-[3-Fluoro-4-(pyridin-2-yloxy)phenyl]-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 483 - # (5R)-7-[3-Fluoro-4-(pyridin-4-yloxy)phenyl]-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 484 - # (5R)-7-[3-Fluoro-4-(pyridin-3-yloxy)phenyl]-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 485 - # (5R)-7-[2-Fluoro-4-(pyridin-3-yloxy)phenyl]-2-(4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 486 - * Methyl {3-chloro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 436.3 (M+H)⁺.

Example 487 - # Ethyl {3-chloro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 450.3 (M+H)⁺.

Example 488 - # Prop-2-yn-1-yl {3-chloro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 460.3 (M+H)⁺.

Example 489 - # Propyl {3-chloro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 465.1 (M+H)⁺.

Example 490 - # N-{3-Chloro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopentanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 475.1 (M+H)⁺.

Example 491 - # N-{3-Chloro-4-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclohexanecarboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 489.1 (M+H)⁺.

Example 492 - # (5R)-7-(5-Fluoropyrimidin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 493 - # (5R)-7-(5-Bromopyrimidin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 494 - # (5R)-7-(5-Ethylpyrimidin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 359.1 (M+H)⁺.

Example 495 - # 4-{2-[(5R)-2-(cis-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrimidin-5-yl}benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 450.1 (M+H)⁺.

Example 496 - # N-Cyclopropyl-4-{2-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrimidin-5-yl}benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 490.1 (M+H)⁺.

Example 497 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[5-(4-methoxyphenyl)pyrimidin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 437.1 (M+H)⁺.

Example 498 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-(5-pyridin-3-ylpyrimidin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 408.2 (M+H)⁺.

Example 499 - # 5-{2-[(5R)-2-(cis-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyrimidin-5-yl}-N,N-dimethylpyridine-2-carboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 479.1 (M+H)⁺.

Example 500 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-(5-pyridin-4-ylpyrimidin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

Example 501 - # 4-{5-Chloro-6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}-N-cyclopropylbenzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 523.2 (M+H)⁺.

Example 502 - # 5'-Chloro-N-ethyl-6'-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3,3'-bipyridine-6-carboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 512.2 (M+H)⁺.

Example 503 - # 2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]isonicotinonitrile

Example 504 - # Methyl {4-[(5R)-2-(cis-4-hydroxy-4-methylcyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3-methylphenyl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 105. LC-MS: 430.1 (M+H)⁺.

Example 505 - # Prop-2-yn-1-yl {6-[(5R)-2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

Example 506 - * (5R)-7-(5-Fluoropyrimidin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 335.1 (M+H)⁺.

Example 507 - * (5R)-7-(5-Ethylpyrimidin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 345.1 (M+H)⁺.

Example 508 - * (5R)-2-(Tetrahydro-2H-pyran-4-yl)-7-[4-(trifluoromethyl)pyrimidin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 385.1 (M+H)⁺.

Example 509 - * (5R)-7-(4-Methoxypyrimidin-2-yl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 116. LC-MS: 347.1 (M+H)⁺.

Example 510 - * (5R)-7-(2-Fluorophenyl)-2-(tetrahydro-2H-pyran-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 180. LC-MS: 333.1 (M+H)⁺.

Example 511 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[5-(1H-pyrazol-1-yl)pyrimidin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

To a solution of (5R)-7-(5-bromopyrimidin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one (30 mg, 0.00007 mol, this compound was prepared by using a procedures that were analogous to those described for the synthesis of example 420) in 1,4-dioxane (1 mL, 0.01 mol) was added 1H-pyrazole (6.0 mg, 0.0000880 mol), (1S,2S)-N,N'-dimethylcyclohexane-1,2-diamine (2.3 uL, 0.000015 mol), copper(I) iodide (1.4 mg, 0.0000073 mol), and potassium carbonate (0.0213 g, 0.000154 mol). After stirring at 150 °C for 16 h, the reaction mixture was filtered and purified by prep-HPLC to afford the desired product. LC-MS: 397.2 (M+H)⁺.

Example 512 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[5-(3-methyl-1H-pyrazol-1-yl)pyrimidin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 511. LC-MS: 411.2 (M+H)⁺.

Example 513 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-{5-[3-(trifluoromethyl)-1H-pyrazol-1-yl]pyrimidin-2-yl}-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 511. LC-MS: 465.2 (M+H)⁺.

Example 514 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-pyrimidin-2-yl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 511. LC-MS: 331.2 (M+H)⁺.

Example 515 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[5-(2-oxopyridin-1(2H)-yl)pyrimidin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 511. LC-MS: 424.2 (M+H)⁺.

Example 516 - # (5R)-7-(2,5-Difluoropyridin-3-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 366.1 (M+H)⁺.

Example 517 - # (5R)-7-(3,5-Difluoropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 518 - # (5R)-7-[3-Fluoro-4-(trifluoromethyl)pyridin-2-yl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 416.1 (M+H)⁺.

Example 519 - # (5R)-7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 432.2 (M+H)⁺.

Example 520 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Example 521 - # (5R)-7-(5-Bromo-2-chloropyridin-3-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 442.2/444.2 (M+H)⁺.

Example 522a - # (5R)-7-(5-Bromo-3-fluoropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 446.2/448.2 (M+H)⁺.

Example 522b - # (5R)-7-(5-Bromo-3-chloropyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 523 - # (5R)-7-(5-Bromo-3-methylpyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 420. LC-MS: 422.2/424.2 (M+H)⁺.

Example 524 - # Methyl 16-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methylpyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of examples 420, steps 1 and 2 followed by using procedures that were analogous to those described for the synthesis of example 105, steps 1 and 2. LC-MS: 417.2 (M+H)⁺.

Example 525 - # Ethyl {6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methylpyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 431.2 (M+H)⁺.

Example 526 - # Propyl {6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methylpyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 445.2 (M+H)⁺.

Example 527 - # Prop-2-yn-1-yl {6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methylpyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 441.2 (M+H)⁺.

Example 528 - # Methyl {6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 433.2 (M+H)⁺.

Example 529 - # Ethyl {6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 447.2 (M+H)⁺.

Example 530 - # Propyl {6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 461.2 (M+H)⁺.

Example 531 - # Prop-2-yn-1-yl {6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-methoxypyridin-3-yl} carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 457.2 (M+H)⁺.

Example 532 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[3-methoxy-5-(2-oxopyrrolidin-1-yl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of examples 420, steps 1 and 2 followed by using procedures that were analogous to those described for the synthesis of example 256. LC-MS: 443.2 (M+H)⁺.

Example 533 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[3-methoxy-5-(2-oxo-1,3-oxazolidin-3-yl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 532. LC-MS: 445.2 (M+H)⁺.

Example 534 - # (5R)-2-(cis-4-Hydroxycyclohexyl)-7-[3-methoxy-5-(2-oxo-1,3-oxazinan-3-yl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 532. LC-MS: 459.1 (M+H)⁺.

Example 535 - # (5R)-7-(3-Chloro-5-phenylpyridin-2-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of examples 420, steps 1 and 2 followed by using procedures that were analogous to those described for the synthesis of example 257. LC-MS: 440.2 (M+H)⁺.

Example 536a - # (5R)-7-[3-Chloro-5-(4-methoxyphenyl)pyridin-2-yl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 535. LC-MS: 471.2 (M+H)⁺.

Example 536b - # 4-{5-Chloro-6-[(SR)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl] pyridin-3-yl}benzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 535. LC-MS: 483.2 (M+H)⁺.

Example 537 - # (5R)-7-(5-Chloro-3,4'-bipyridin-6-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 535. LC-MS: 441.2 (M+H)⁺.

Example 538 - # 5'-Chloro-6'-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N,N-dimethyl-3,3'-bipyridine-6-carboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 535. LC-MS: 512.2 (M+H)⁺.

Example 539 - # 5'-Chloro-N,N-diethyl-6'-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-3,3'-bipyridine-6-carboxamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 535. LC-MS: 540.2 (M+H)⁺.

Example 540 - # 4-{5-Chloro-6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}-N,N-dimethylbenzamide

This compound was prepared by using procedures analogous to those described for the synthesis of example 535. LC-MS: 511.2 (M+H)⁺.

Example 541 - # Methyl {5-chloro-6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 437.2 (M+H)⁺.

Example 542 - # Ethyl {5-chloro-6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 451.2 (M+H)⁺.

Example 543 - # Propyl {5-chloro-6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

This compound was prepared by using procedures analogous to those described for the synthesis of example 524. LC-MS: 465.2 (M+H)⁺.

Example 544 - # Prop-2-yn-1-yl {5-chloro-6-[(5R)-2-(cis-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]pyridin-3-yl}carbamate

Example 545 - # (5R)-7-[3-Chloro-5-(2-oxo-1,3-oxazolidin-3-yl)pyridin-2-yl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 532. LC-MS: 449.2 (M+H)⁺.

Example 546 - # (5R)-7-[3-Chloro-5-(2-oxo-1,3-oxazinan-3-yl)pyridin-2-yl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 532. LC-MS: 463.2 (M+H)⁺.

Example 547 - # (5R)-7-[3-Chloro-5-(2-oxopyrrolidin-1-yl)pyridin-2-yl]-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 532. LC-MS: 447.2 (M+H)⁺.

Example 548 - # (5R)-7-(5-Chloro-3,3'-bipyridin-6-yl)-2-(cis-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 549 - # (5R)-7-(3-Fluoro-6-methylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 362.2 (M+H)⁺.

Example 550 - # 6-[(5R)-2-(trans-4-Hydroxycyclohexyl)-l-oxo-2,7-diazaspiro[4.5]dec-7-yl]-2-methylnicotinonitrile

Example 551 - # 2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-4,6-dimethylnicotinonitrile

Example 552 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-[2-(trifluoromethyl)quinazolin-4-yl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 449.2 (M+H)⁺.

Example 553 - * (5R)-2-Cyclohexyl-7-[2-fhioro-4-(2-oxopyrrolidin-1-yl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 414.2 (M+H)⁺.

Example 554 - * (5R)-2-Cyclohexyl-7-[2-fluoro-4-(2-oxo-1,3-oxazolidin-3-yl)phenyl]-2,7-diazaspiro[4.5]decan-1-one

Example 555 - # (5R)-7-(5-Chloro-3-methylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 378.2 (M+H)⁺.

Example 556 - # (5R)-7-(3-Fluoro-4-methylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 557 - # (5R)-7-(5-Fluoro-3-methylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 558 - # (5R)-7-(5-Fluoro-6-methylpyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one

Example 559 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 370.2 (M+H)⁺.

Example 560 - # (5R)-2-(trans-4-Hydroxycyclohexyl)-7-(5-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 93. LC-MS: 344.2 (M+H)⁺.

Example 561 - # 2-[(5R)-2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-5-phenylnicotinonitrile

This compound was prepared by using procedures analogous to those described for the synthesis of example 257. LC-MS: 431.2 (M+H)⁺.

Example 562 - * (5R)-7-[3-Chloro-5-(2-oxo-l,3-oxazolidin-3-yl)pyridin- 2-yl]-2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 433.2 (M+H)⁺.

Example 563 - * (5R)-7-[3-Chloro-5-(2-oxopyrrolidin-1-yl)pyridin-2-yl]-2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 431.2 (M+H)⁺.

Example 564 - * (5R)-7-[3-Chloro-5-(2-oxo-1,3-oxazinan-3-yl)pyridin-2-yl]-2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 447.2 (M+H)⁺.

Example 565 - * (5R)-7-[3-Chloro-5-(2-oxopiperidin-1-yl)pyridin-2-yl]-2-cyclohexyl-2,7-diazaspiro[4.5]decan-1-one

This compound was prepared by using procedures analogous to those described for the synthesis of example 256. LC-MS: 445.2 (M+H)⁺.

Example A - # Enzymatic assay of 11βHSD1

All in vitro assays were performed with clarified lysates as the source of 11βHSD1 activity. HEK-293 transient transfectants expressing an epitope-tagged version of full-length human 11βHSD1 were harvested by centrifugation. Roughly 2 x 10⁷ cells were resuspended in 40 mL of lysis buffer (25 mM Tris-HCl, pH 7.5, 0.1 M NaCl, 1 mM MgCl₂ and 250 mM sucrose) and lysed in a microfluidizer. Lysates were clarified by centrifugation and the supernatants were aliquoted and frozen.

Inhibition of 11βHSD1 by test compounds was assessed in vitro by a Scintillation Proximity Assay (SPA). Dry test compounds were dissolved at 5 mM in DMSO. These were diluted in DMSO to suitable concentrations for the SPA assay. 0.8 µL of 2-fold serial dilutions of compounds were dotted on 384 well plates in DMSO such that 3 logs of compound concentration were covered. 20 µL of clarified lysate was added to each well. Reactions were initiated by addition of 20 µL of substrate-cofactor mix in assay buffer (25 mM Tris-HCl, pH 7.5, 0.1 M NaCl, 1 mM MgCl₂) to final concentrations of 400 µM NADPH, 25 nM ³H-cortisone and 0.007% Triton X-100. Plates were incubated at 37 °C for one hour. Reactions were quenched by addition of 40 µL of anti-mouse coated SPA beads that had been pre-incubated with 10 µM carbenoxolone and a cortisol-specific monoclonal antibody. Quenched plates were incubated for a minimum of 30 minutes at RT prior to reading on a Topcount scintillation counter. Controls with no lysate, inhibited lysate, and with no mAb were run routinely. Roughly 30% of input cortisone is reduced by 11βHSD1 in the uninhibited reaction under these conditions.

Test compounds having an IC₅₀ value less than about 20 µM according to this assay were considered active.

Example B - # Cell-based assays for HSD activity

Peripheral blood mononuclear cells (PBMCs) were isolated from normal human volunteers by Ficoll density centrifugation. Cells were plated at 4x10⁵ cells/well in 200 µL of AIM V (Gibco-BRL) media in 96 well plates. The cells were stimulated overnight with 50 ng/ml recombinant human IL-4 (R&D Systems). The following morning, 200 nM cortisone (Sigma) was added in the presence or absence of various concentrations of compound. The cells were incubated for 48 hours and then supernatants were harvested. Conversion of cortisone to cortisol was determined by a commercially available ELISA (Assay Design).

Example C - # Cellular assay to evaluate MR antagonism

Assays for MR antagonism were performed essentially as described (Jausons-Loffreda et al. J Biolumin and Chemilumin, 1994, 9: 217-221). Briefly, HEK293/MSR cells (Invitrogen Corp.) were co-transfected with three plasmids: 1) one designed to express a fusion protein of the GAL4 DNA binding domain and the mineralocorticoid receptor ligand binding domain, 2) one containing the GAL4 upstream activation sequence positioned upstream of a firefly luciferase reporter gene (pFR-LUC, Stratagene, Inc.), and 3) one containing the Renilla luciferase reporter gene cloned downstream of a thymidine kinase promoter (Promega). Transfections were performed using the FuGENE6 reagent (Roche). Transfected cells were ready for use in subsequent assays 24 hours post-transfection.

In order to evaluate a compound's ability to antagonize the MR, test compounds are diluted in cell culture medium (E-MEM, 10% charcoal-stripped FBS, 2 mM L-glutamine) supplemented with 1 nM aldosterone and applied to the transfected cells for 16-18 hours. After the incubation of the cells with the test compound and aldosterone, the activity of firefly luciferase (indicative of MR agonism by aldosterone) and Renilla luciferase (normalization control) were determined using the Dual-Glo Luciferae Assay System (Promega). Antagonism of the mineralocorticoid receptor was determined by monitoring the ability of a test compound to attenuate the aldosterone-induced firefly luciferase activity.

Compounds having an IC₅₀ of 100 µM or less were considered active.

Claims

A compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein:
Cy is aryl or heteroaryl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z;

each -W-X-Y-Z is, independently, halo, CN, NO₂, C_1-4 alkoxy, heteroaryloxy, C_2-6 alkynyl, C_1-4 haloalkoxy, NR^cC(O)R^d, NR^cC(O)OR^a, C(O)NR^cR^d, NR^cR^d, NR^eS(O)₂R^b, C_1-4 haloalkyl, C_1-6 alkyl, heterocycloalkyl, aryl or heteroaryl, wherein each of said C_1-6 alkyl, aryl or heteroaryl is optionally substituted by 1, 2 or 3 halo, C_1-6 alkyl, C_1-4 haloalkyl, CN, NO₂, OR^a, SR^a, C(O)NR^cR^d, NR^cC(O)R^d or COOR^a;

L is (CR¹²R¹³)_q1, and q1 is 0;

Q is cyclohexyl substituted at the 4-position with at least one -W'-X'-Y'-Z';

each -W'-X'-Y'-Z' is, independently, OH, C_1-4 alkoxy, CN, C_1-4 alkyl, -O-heteroaryl, -(C_1-4 alkyl)-CN, COOR^a, C(O)NR^cR^d or NR^cC(O)OR^a;

E is ethylene;

R⁴, R⁵, R⁶, R⁷, R⁸, R⁹, R¹⁰ and R¹¹ are each H;

R¹² and R¹³ are each, independently, H, halo, C_1-4 alkyl, C_1-4 haloalkyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, CN, NO₂, OR^a', SR^a', C(O)R^b', C(O)NR^c'R^d', C(O)OR^a', OC(O)R^b', OC(O)NR^c'R^d', NR^c'R^d', NR^cC(O)R^d', NR^c'C(O)OR^a', S(O)R^b', S(O)NR^c'R^d', S(O)₂R^b', or S(O)₂NR^c'R^d';

R^a and R^a' are each, independently, H, C_1-6 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl, wherein said C_1-6 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl is optionally substituted with H, OH, amino, halo, C_1-6 alkyl, C_1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl;

R^b, and R^b' are each, independently, H, C_1-6 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C_1-6 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C_1-6 alkyl, C_1-6 haloalkyl, C_1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl;

R^c and R^d are each, independently, H, C_1-10 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C_1-10 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C_1-6 alkyl, C_1-6 haloalkyl, C_1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl;

or R^c and R^d together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group;

R^c' and R^d' are each, independently, H, C_1-10 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C_1-10 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C_1-6 alkyl, C_1-6 haloalkyl, C_1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl;

or R^c' and R^d' together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group;

R^e is H, C_1-10 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl, wherein said C_1-10 alkyl, C_1-6 haloalkyl, C_2-6 alkenyl, C_2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with H, OH, amino, halo, C_1-6 alkyl, C_1-6 haloalkyl, C_1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl; and

r is 1.
The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl, thiazolyl, pyrazinyl, purinyl, quinazolinyl, quinolinyl, isoquinolinyl, pyrrolo[2,3-d]pyrimidinyl, or 1,3-benzothiazolyl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z.
The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl or thienyl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z.
The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl, thiazolyl, pyrazinyl, purinyl, quinazolinyl, quinolinyl, isoquinolinyl, pyrrolo[2,3-d]pyrimidinyl, or 1,3-benzothiazolyl, each optionally substituted with 1, 2, 3 or 4 halo, CN, NO₂, C_1-4 alkoxy, heteroaryloxy, C_2-6 alkynyl, C_1-4 haloalkoxy, NR^cC(O)R^d, NR^cC(O)OR^a, C(O)NR^cR^d, NR^cR^d, NR^eS(O)₂R^b, C_1-4 haloalkyl, C_1-6 alkyl, heterocycloalkyl, aryl or heteroaryl, wherein each of said C_1-6 alkyl, aryl or heteroaryl is optionally substituted by 1, 2 or 3 halo, C_1-6 alkyl, C_1-4 haloalkyl, CN, NO₂, OR^a, SR^a, C(O)NR^cR^d, NR^cC(O)R^d or COOR^a.
The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl, thienyl, thiazolyl, pyrazinyl, purinyl, quinazolinyl, quinolinyl, isoquinolinyl, pyrrolo[2,3-d]pyrimidinyl, or 1,3-benzothiazolyl, each optionally substituted with 1, 2, 3 or 4 substituents independently selected from:
halo, CN, NO₂, C_1-4 alkoxy, pyridin-2-yloxy, pyridin-3-yloxy, pyridin-4-yloxy, C_2-6 alkynyl, C_1-4 haloalkoxy, NR^cC(O)R^d, NR^cC(O)OR^a, C(O)NR^cR^d, NR^cR^d, NR^eS(O)R^b, C_1-4 haloalkyl, C_1-6 alkyl, phenyl, pyridyl, pyrimidinyl, isoxazolyl, pyrazolyl, 1,2,3,6-tetrahydro-pyridinyl, 2-oxo-(2H)-pyridinyl, 2-oxo-[1,3]oxazolidinyl, 2-oxo-pyrrolidinyl, pyrrolidinyl, 2-oxopiperidinyl, and 2-oxo-[1,3]oxazinanyl; wherein each of said C_1-6 alkyl, phenyl, pyridyl, pyrimidinyl, isoxazolyl, pyrazolyl, 1,2,3,6-tetrahydro-pyridinyl, 2-oxo-(2H)-pyridinyl, 2-oxo-[1,3]oxazolidinyl, 2-oxo-pyrrolidinyl, pyrrolidinyl, 2-oxopiperidinyl, or 2-oxo-[1,3]oxazinanyl is optionally substituted by 1, 2 or 3 halo, C_1-6 alkyl, C_1-4 haloalkyl, CN, NO₂, OR^a, SR^a, C(O)NR^cR^d, NR^cC(O)R^d or COOR^a.
The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl or thienyl, each optionally substituted with 1, 2, or 3 halo, CN, C_1-4 alkoxy, C_1-4 haloalkoxy, C_1-6 alkyl or aryl, wherein said C_1-6 alkyl or aryl is optionally substituted by 1, 2 or 3 halo, C_1-6 alkyl, C_1-4 haloalkyl, CN, NO₂, OR^a, or SR^a.
The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein Cy is phenyl, naphthyl, pyridyl, pyrimidinyl, triazinyl, furanyl or thienyl, each optionally substituted with 1, 2, or 3 halo, CN, C_1-4 alkoxy, C_1-4 haloalkoxy, C_1-6 alkyl or aryl, wherein said C_1-6 alkyl or aryl is optionally substituted by 1, 2 or 3 halo or C_1-6 alkyl.
The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein Cy is phenyl, pyridyl, pyrimidinyl, quinolinyl, or isoquinolinyl, each optionally substituted with 1, 2, 3, 4 or 5 -W-X-Y-Z.
A compound according to claim 1 selected from:
7-(4-Fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

7-(3-Fluorophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-phenyl-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;

6-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile;

2-(trans-4-Hydroxycyclohexyl)-7-(6-methoxypyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-(6-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-(5-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;

7-(5-Fluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-[6-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;

(5S)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;

(5R)-2-(trans-4-Hydroxycyclohexyl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;

7-(6-Fluoropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-(3-methylpyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-(4-methoxypyridin-2-yl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-pyridin-2-yl-2,7-diazaspiro[4.5]decan-1-one;

7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile;

2-(trans-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]decan-1-one;

3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]benzonitrile;

Isopropyl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;

Prop-2-yn-1-yl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;

Methyl {4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;

N-{4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl} acetamide;

N-{4-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}cyclopropanecarboxamide;

Isopropyl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;

Prop-2-yn-1-yl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;

Methyl {3-fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl}carbamate;

N-{3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]phenyl} cyclopropanecarboxamide;

7-(4-Chloropyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-[4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;

2-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinonitrile;

7-(5-Chloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

7-(3,5-Dichloropyridin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;

Methyl 6-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]nicotinate;

2-(trans-4-Hydroxycyclohexyl)-7-isoquinolin-1-yl-2,7-diazaspiro [4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-quinolin-2-yl-2,7-diazaspiro [4.5]decan-1-one;

N-{3-Fluoro-4-[2-(trans-4-hydroxycyclohexyl)-1-oxo-2,7-diazaspiro [4.5]dec-7-yl]phenyl} acetamide;

4- {1-Oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl} cyclohexanecarbonitrile;

4-{1-Oxo-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]dec-2-yl} cyclohexanecarbonitrile;

4- {7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-oxo-2,7-diazaspiro[4.5]dec-2-yl} cyclohexanecarbonitrile;

4-[7-(3,5-Dichloropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl] cyclohexanecarbonitrile;

4-[7-(6-Fluoropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl] cyclohexanecarbonitrile;

(trans-4-{1-Oxo-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]dec-2-yl} cyclohexyl)acetonitrile;

(trans-4- {1-Oxo-7-[4-(trifluoromethyl)phenyl]-2,7-diazaspiro[4.5]dec-2-yl} cyclohexyl)acetonitrile;

(trans-4-{7-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-oxo-2,7-diazaspiro [4.5]dec-2-yl} cyclohexyl)acetonitrile;

{trans-4-[7-(3,5-Dichloropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl} acetonitrile;

{trans-4-[7-(6-Fluoropyridin-2-yl)-1-oxo-2,7-diazaspiro[4.5]dec-2-yl]cyclohexyl} acetonitrile;

7-(2-fluoro-4-nitrophenyl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

2-(trans-4-Hydroxycyclohexyl)-7-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one;

7-(5-Ethylpyrimidin-2-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one;

7-(2-Chloropyrimidin-4-yl)-2-(trans-4-hydroxycyclohexyl)-2,7-diazaspiro[4.5]decan-1-one; and

6-[2-(trans-4-Hydroxycyclohexyl)-1-oxo-2,7-diazaspiro[4.5]dec-7-yl]-N,N-dimethylnicotinamide;
or a pharmaceutically acceptable salt thereof.
A composition comprising a compound according to any one of claims 1 to 9, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
A compound according to any one of claims 1 to 9, or a pharmaceutically acceptable salt thereof, for use in medicine.
A compound according to any one of claims 1 to 9, or a pharmaceutically acceptable salt thereof, for use in treating a disease, wherein said disease is obesity, diabetes, glucose intolerance, insulin resistance, hyperglycemia, hypertension, hyperlipidemia, cognitive impairment, depression, dementia, glaucoma, a cardiovascular disorder, osteoporosis, inflammation, renal disease, heart failure, atherosclerosis, arteriosclerosis, coronary artery disease, thrombosis, angina, peripheral vascular disease, vascular wall damage, stroke, dyslipidemia, hyperlipoproteinaemia, diabetic dyslipidemia, mixed dyslipidemia, hypercholesterolemia, hypertriglyceridemia, metabolic syndrome or general aldosterone-related target organ damage.
Use of a compound according to any one of claims 1 to 9, or a pharmaceutically acceptable salt thereof, in the manufacture of a medicament for treating a disease, wherein said disease is obesity, diabetes, glucose intolerance, insulin resistance, hyperglycemia, hypertension, hyperlipidemia, cognitive impairment, depression, dementia, glaucoma, a cardiovascular disorder, osteoporosis, inflammation, renal disease, heart failure, atherosclerosis, arteriosclerosis, coronary artery disease, thrombosis, angina, peripheral vascular disease, vascular wall damage, stroke, dyslipidemia, hyperlipoproteinaemia, diabetic dyslipidemia, mixed dyslipidemia, hypercholesterolemia, hypertriglyceridemia, metabolic syndrome or general aldosterone-related target organ damage.
A compound according to any one of claims 1 to 9, or a pharmaceutically acceptable salt thereof, for use in treating type 2 diabetes.
Use of a compound according to any one of claims 1 to 9, or a pharmaceutically acceptable salt thereof, in the manufacture of a medicament for treating type 2 diabetes.