WO2016063906A1 - プロドラッグ - Google Patents
プロドラッグ Download PDFInfo
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- WO2016063906A1 WO2016063906A1 PCT/JP2015/079689 JP2015079689W WO2016063906A1 WO 2016063906 A1 WO2016063906 A1 WO 2016063906A1 JP 2015079689 W JP2015079689 W JP 2015079689W WO 2016063906 A1 WO2016063906 A1 WO 2016063906A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/72—Nitrogen atoms
- C07D213/75—Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- the present invention relates to a prodrug.
- Phosphodiesterase (PDE) inhibitors are known to be effective for treating inflammatory diseases.
- N- (3,5-dichloropyrid-4-yl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide (also called roflumilast), which is a PDE4 inhibitor
- PDE4 inhibitor PDE4 inhibitor
- ⁇ Roflumilast is a compound that is very difficult to dissolve in water. Therefore, special measures are required to contain roflumilast in a high concentration in the preparation. In addition, roflumilast is a compound that has a low skin permeability, and is therefore a compound that is very difficult to prepare as a transdermal absorption preparation.
- an object of the present invention is to provide a compound or a salt thereof that is excellent in water solubility and skin permeability and is rapidly metabolized in the body to produce roflumilast.
- the present invention provides the following (1) to (15).
- (1) Formula (I) [Wherein R is a hydrogen atom, a C 1-6 alkyl group optionally substituted with a hydroxyl group, a C 1-6 alkoxy group or a cyano group] or a pharmaceutically acceptable salt thereof salt.
- a disease in which PDE4 is effectively inhibited comprising administering the compound according to any one of (1) to (4) or a pharmaceutically acceptable salt thereof to a subject in need thereof Or a method of treating symptoms.
- the use according to (11), wherein the disease or symptom is chronic obstructive pulmonary disease.
- the compound represented by the formula (I) or a pharmaceutically acceptable salt thereof according to the present invention is excellent in water solubility and skin permeability and can be rapidly metabolized in the body to produce roflumilast. Therefore, the compound according to the present invention or a pharmaceutically acceptable salt thereof can be used as an active ingredient in a wide variety of preparations such as aqueous preparations, and produces roflumilast immediately after being absorbed into the body. There is an advantage that it is easy to manage the blood concentration of. That is, the compound represented by the formula (I) or a pharmaceutically acceptable salt thereof according to the present invention is useful as a prodrug of roflumilast.
- the compound represented by the formula (I) or a pharmaceutically acceptable salt thereof according to the present invention can be produced from roflumilast in a short process and in a high yield.
- the present embodiment is a compound represented by formula (I) (hereinafter also referred to as compound (I)) or a pharmaceutically acceptable salt thereof.
- R is a hydrogen atom, a C 1-6 alkyl group optionally substituted with a hydroxyl group, a C 1-6 alkoxy group, or a cyano group.
- the C 1-6 alkyl group means an alkyl group having 1 to 6 carbon atoms.
- Examples of the C 1-6 alkyl group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, and an n-butyl group.
- the C 1-6 alkyl group may be optionally substituted with a hydroxyl group.
- Examples of the C 1-6 alkyl group substituted with a hydroxyl group include a hydroxymethyl group, a 1-hydroxyethyl group, a 2-hydroxyethyl group, and a 2,3-dihydroxypropan-1-yl group.
- the C 1-6 alkoxy group means an alkoxy group having 1 to 6 carbon atoms.
- Examples of the C 1-6 alkoxy group include a methoxy group, an ethoxy group, an n-propyloxy group, an isopropyloxy group, an n -Butyloxy group, isobutyloxy group, tert-butyloxy group, n-pentyloxy group, 2-pentyloxy group, 3-pentyloxy group, n-hexyloxy group, 2-hexyloxy group, 3-hexyloxy group It is done.
- the pharmaceutically acceptable salt is not particularly limited as long as it is an inorganic acid or organic acid salt and can be used in the pharmaceutical field.
- the inorganic acid include hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid, nitric acid and the like.
- organic acids include carboxylic acids such as acetic acid, citric acid, fumaric acid, maleic acid, tartaric acid, benzoic acid, and pamoic acid, sulfonic acids such as methanesulfonic acid, benzenesulfonic acid, and toluenesulfonic acid, glutamic acid, Examples include acidic amino acids such as aspartic acid, carbonic acid, and bicarbonate.
- R is a hydrogen atom, a C 1-6 alkyl group optionally substituted with a hydroxyl group, a C 1-6 alkoxy group or a cyano group, preferably a C atom substituted with a hydrogen atom or a hydroxyl group.
- a methoxy group or a cyano group particularly preferably a hydrogen atom, a hydroxymethyl group, a methoxy group or a cyano group.
- N-cyanomethyl-N- (3,5-dichloropyrid-4-yl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide N- (3,5-dichloropyrid-4-yl) -N- (2-hydroxyethyl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide; N- (3,5-dichloropyrid-4-yl) -N-methyl-3-cyclopropylmethoxy-4-difluoromethoxybenzamide, N- (3,5-dichloropyrid-4-yl) -N- (2,3-dihydroxypropan-1-yl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide, N- (3,5-dichloropyrid-4-yl) -N- (3-hydroxypropan-1-yl) -3-cyclopropylmethoxy-4-difluorometh
- Compound (I) can be produced by reacting roflumilast with compound (II) in the presence of a base.
- the base used in the above reaction is not particularly limited as long as the proton on the nitrogen atom of benzamide can be deprotonated.
- the base include metal hydroxides such as sodium hydroxide and potassium hydroxide; metal alkoxides such as sodium methoxide and potassium tert-butoxide; metal hydrides such as sodium hydride and potassium hydride; sodium hexamethyldisilazide And metal amides such as lithium hexamethyldisilazide; and alkyl metal compounds such as butyl lithium and isopropyl magnesium bromide.
- a preferred base is sodium hydride.
- R has the same meaning as defined in compound (I), and X is a leaving group.
- X is not particularly limited as long as it acts as a leaving group; halogen atoms such as fluorine atom, chlorine atom, bromine atom and iodine atom; alkylsulfonyloxy group such as methanesulfonyloxy group; trifluoromethanesulfonyl Examples thereof include fluoroalkylsulfonyloxy groups such as oxy group and nonafluorobutanesulfonyloxy group; arylsulfonyloxy groups such as toluenesulfonyloxy group.
- the compound (I) when R is a C 1-6 alkyl group substituted with a hydroxyl group, the compound (II) is a C 1-6 alkyl substituted with a group capable of converting R to a hydroxyl group. You may react using the compound which is group. Examples of the group that can be converted to a hydroxyl group include derivatives or esters in which the hydroxyl group is protected. In this case, after the above reaction, it can be converted to a hydroxyl group by appropriate deprotection or reduction by a method well known to those skilled in the art.
- the above reaction may be performed in a solvent or without a solvent.
- the solvent used in the above reaction is not particularly limited as long as it does not affect the reaction.
- the solvent include ether solvents such as diethyl ether, diisopropyl ether, and tetrahydrofuran (THF), hydrocarbon solvents such as benzene, toluene, and xylene, halogen-containing hydrocarbon solvents such as dichloromethane and chloroform, N, N—
- ether solvents such as diethyl ether, diisopropyl ether, and tetrahydrofuran (THF)
- hydrocarbon solvents such as benzene, toluene, and xylene
- halogen-containing hydrocarbon solvents such as dichloromethane and chloroform
- N, N— examples include aprotic polar organic solvents such as dimethylformamide (DMF) and dimethyl sulfoxide (DMSO).
- the above reaction can be stopped by adding water to the reaction mixture.
- water to be added an aqueous ammonium chloride solution or the like may be used.
- Compound (I) obtained by the above reaction can be purified by methods well known to those skilled in the art.
- Examples of the purification method include column chromatography, gel filtration chromatography, and crystallization.
- Another embodiment of the present invention is a pharmaceutical composition containing compound (I).
- the pharmaceutical composition can contain additives that can be added as pharmaceuticals in addition to the compound (I) in accordance with the target dosage form.
- additives include excipients, isotonic agents, stabilizers, solubilizers, buffers, pH adjusters, fillers, binders, disintegrants, lubricants, colorants, and fragrances.
- the pharmaceutical composition containing the compound or the pharmaceutically acceptable salt thereof is a tablet, a capsule, or a granule.
- an oral preparation such as a powder or liquid, or as an injection (may be administered intravenously, intramuscularly, subcutaneously or intraperitoneally), it is easier to formulate than a preparation containing roflumilast. Yes, with high reliability of pharmacological action.
- a pharmaceutical composition containing the compound or a pharmaceutically acceptable salt thereof can be used as a patch, a pap.
- the pharmaceutical composition containing the compound of the present embodiment or a pharmaceutically acceptable salt thereof may be an inhalant, nasal drops, eye drops, suppositories, or the like.
- Example 1 N-cyanomethyl-N- (3,5-dichloropyrid-4-yl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide Under a nitrogen stream, 56.4 mg of sodium hydride (60% dispersion in oil, 1.41 mmol) was added to a dry DMF solution (5 mL) of 0.5 g (1.24 mmol) of roflumilast, and the mixture was stirred at room temperature for about 15 minutes. To the reaction mixture, 0.172 mL (2.73 mmol) of chloroacetonitrile and 0.4 g (0.269 mmol) of sodium iodide were added and held at room temperature for 2 hours.
- sodium hydride 50% dispersion in oil, 1.41 mmol
- reaction mixture was allowed to cool to room temperature, 3 mL of water was added, and the mixture was extracted 3 times with 9 mL of chloroform. The organic layer was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give 649 mg (1.37 mmol) of the title compound as an orange oil.
- Example 2 N- (3,5-dichloropyrid-4-yl) -N- (2-hydroxyethyl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide Under a nitrogen stream, 0.257 g (0.541 mmol) of the compound obtained in Production Example 1 and 0.111 g (2.93 mmol) of sodium borohydride are dissolved in 5 mL of methanol and 1.5 mL of THF, and stirred at room temperature for 24 hours. did. After completion of the reaction, the solvent was distilled off under reduced pressure, 5 mL of water was added to the residue, and the mixture was extracted 3 times with 5 mL of chloroform.
- Example 3 N- (3,5-dichloropyrid-4-yl) -N-methyl-3-cyclopropylmethoxy-4-difluoromethoxybenzamide Under a nitrogen stream, 72 mg of sodium hydride (60% dispersion in oil, 3.0 mmol) and 0.19 mL of methyl iodide (3.3) were added at 0 ° C. to a dry DMF solution (5 ml) of roflumilast 0.25 g (0.60 mmol). 0 mmol) was added and stirred at room temperature for 12 hours. 3 mL of water was added to the reaction mixture, and the mixture was extracted 3 times with ethyl acetate.
- the obtained reaction mixture was extracted with dichloromethane, and the organic layer was washed with saturated brine and dried over anhydrous sodium sulfate, and then the solvent was distilled off under reduced pressure to obtain 5.54 g of a white solid.
- the obtained solid was successively dispersed and washed with diethyl ether and hexane, and then purified by silica gel column chromatography to obtain 1.04 g (4.28 mmol) of the title compound as a colorless oil.
- Example 4 N- (3,5-dichloropyrid-4-yl) -N- (2,3-dihydroxypropan-1-yl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide 2 mL of 1M hydrochloric acid was added to a THF solution (1.0 mL) of 47 mg (0.092 mmol) of the compound obtained in Production Example 2-2, and the mixture was stirred at room temperature for 12 hours. A saturated aqueous sodium hydrogen carbonate solution was added to the reaction mixture to adjust the pH to 7 to 8, followed by extraction with chloroform three times. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure.
- Example 5 N- (3,5-dichloropyrid-4-yl) -N- (3-hydroxypropan-1-yl) -3-cyclopropylmethoxy-4-difluoromethoxybenzamide 180 mg (0.31 mmol) of the compound obtained in Production Example 3-1 was dissolved in 3 mL of a mixture of methanol and concentrated hydrochloric acid (volume ratio 97: 3) and stirred at room temperature for 1 hour. The reaction mixture was concentrated under reduced pressure and purified using silica gel column chromatography (heptane / ethyl acetate).
- Example 6 N- (3,5-dichloropyrid-4-yl) -N-methoxymethyl-3-cyclopropylmethoxy-4-difluoromethoxybenzamide Under a nitrogen stream, sodium hydride 69 mg (60% dispersion in oil, 1.73 mmol) was added to a dry DMF solution (5 mL) of roflumilast 505 mg (1.25 mmol), and then bromomethyl methyl ether 0.3 mL (3. 67 mmol) was added and stirred at room temperature for 2 hours. 5 mL of water was added to the reaction mixture, and the mixture was extracted 3 times with chloroform to obtain an organic layer.
- the obtained organic layers were combined and dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure to obtain a pale yellow residue.
- 1N hydrochloric acid was added until the pH of the aqueous layer became 1, and the mixture was extracted 3 times with 5 mL of chloroform.
- the obtained organic layer was dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure.
- the obtained residue was purified by silica gel column chromatography (chloroform / methanol) to obtain 0.342 mg (0.740 mmol, yield 54%) of the title compound as a pale yellow amorphous.
- Test Example 1 In vitro metabolic test To a 100 mmol / L Tris-HCl buffer containing a coenzyme (NADPH production system), a human liver enzyme fraction was added to a concentration of 0.5 mg protein / mL at 37 ° C. Preincubation for 5 minutes. Each compound was added to this solution to a concentration of 0.1 ⁇ mol / L, incubated at 37 ° C. for 1 hour, and then water-cooled acetonitrile was added to stop the reaction. The obtained solution was filtered and then quantified by LC-MS / MS to calculate the metabolic rate (%) to roflumilast.
- “with heat treatment” means that the metabolic enzyme was inactivated by preheating before adding the human liver enzyme fraction.
- Table 1 The results are shown in Table 1.
- the numerical values in Table 1 mean the metabolic rate (%) to roflumilast.
- the compounds of Examples 1-6 were metabolized by an enzyme derived from human liver to produce roflumilast. Moreover, when the metabolic enzyme was inactivated by heat-treating the human liver enzyme fraction before use, roflumilast was not produced. On the other hand, the compounds of Reference Examples 1 and 2 did not produce roflumilast even when treated with the human liver enzyme fraction.
- Test Example 2 Water solubility evaluation test An excessive amount of each compound was added to 10 mL of phosphate buffer (pH 7), and sonication was performed for 30 minutes. The obtained suspension is filtered, 0.5 mL of acetonitrile is added to 0.5 mL of the filtrate to obtain a test solution, and the concentration of each compound in the test solution is measured by a high performance liquid chromatographic method to calculate the saturated solubility. did. In addition, roflumilast was used as Comparative Example 1.
- Test Example 3 Skin Permeability Evaluation Test
- the back skin of a hairless mouse is removed, and the epidermis side (application area: 1 cm 2 ) of the skin piece is in contact with the solution of the test compound (Example, Comparative Example or Reference Example Compound).
- the test compound (Example, Comparative Example or Reference Example Compound).
- it set to the Franz type
- PBS phosphate buffered saline
- dimethyl sulfoxide so that the density
- test compound solution 100 ⁇ L was introduced into the donor chamber of the Franz diffusion cell. After introducing the test compound solution, the flow solution was sampled every 2 hours until 24 hours later. Acetonitrile was added to the flow solution sampled every 2 hours to dilute it twice, and after centrifugation, the supernatant was obtained as a sample for HPLC analysis. Each of the obtained samples for analysis was analyzed by a high performance liquid chromatograph method, and Jmax (maximum skin permeation rate) and the accumulated permeation amount for 24 hours were calculated. In addition, roflumilast was used as Comparative Example 1.
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Abstract
Description
(1)式(I)
(2)Rが、水素原子、水酸基で置換されていてもよいC1-6アルキル基又はシアノ基である、(1)に記載の化合物又はその薬学的に許容される塩。
(3)Rが、水素原子、ヒドロキシメチル基、メトキシ基又はシアノ基である、(1)に記載の化合物又はその薬学的に許容される塩。
(4)Rが、水素原子、ヒドロキシメチル基又はシアノ基である、(1)に記載の化合物又はその薬学的に許容される塩。
(5)(1)~(4)のいずれかに記載の化合物又はその薬学的に許容される塩を含有する医薬組成物。
(6)PDE4阻害剤である、(5)に記載の医薬組成物。
(7)PDE4を阻害することが有効な疾患又は症状の治療剤である、(5)に記載の医薬組成物。
(8)上記疾患又は症状が慢性閉塞性肺疾患である、(7)に記載の医薬組成物。
(9)(1)~(4)のいずれかに記載の化合物又はその薬学的に許容される塩を、それを必要とする対象に投与することを含む、PDE4を阻害することが有効な疾患又は症状の治療方法。
(10)上記疾患又は症状が慢性閉塞性肺疾患である、(9)に記載の治療方法。
(11)PDE4を阻害することが有効な疾患又は症状の治療のための医薬組成物を製造するための、(1)~(4)のいずれかに記載の化合物又はその薬学的に許容される塩の使用。
(12)上記疾患又は症状が慢性閉塞性肺疾患である、(11)に記載の使用。
(13)医薬組成物の有効成分として使用するための、(1)~(4)のいずれかに記載の化合物又はその薬学的に許容される塩。
(14)上記医薬組成物がPDE4阻害剤である、(13)に記載の化合物又はその薬学的に許容される塩。
(15)上記医薬組成物がPDE4を阻害することが有効な疾患又は症状を治療するための医薬組成物である、(13)に記載の化合物又はその薬学的に許容される塩。
(16)上記疾患又は症状が慢性閉塞性肺疾患である、(15)に記載の化合物又はその薬学的に許容される塩。
N-シアノメチル-N-(3,5-ジクロロピリド-4-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド、
N-(3,5-ジクロロピリド-4-イル)-N-(2-ヒドロキシエチル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド、
N-(3,5-ジクロロピリド-4-イル)-N-メチル-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド、
N-(3,5-ジクロロピリド-4-イル)-N-(2,3-ジヒドロキシプロパン-1-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド、
N-(3,5-ジクロロピリド-4-イル)-N-(3-ヒドロキシプロパン-1-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド、および
N-(3,5-ジクロロピリド-4-イル)-N-メトキシメチル-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
が挙げられる。
DMF:N,N-ジメチルホルムアミド
DMI:N,N-ジメチルイミダゾリジノン
DMSO:ジメチルスルホキシド
n:ノルマル
ODS:オクタデシルシリカゲル
TBS:tert-ブチルジメチルシリル
tert:ターシャリー
THF:テトラヒドロフラン
プロトン核磁気共鳴スペクトル(1H-NMR)の化学シフトは、テトラメチルシラン(内部標準)に対するδ単位(ppm)で記載され、カップリング定数はヘルツ(Hz)で記載されている。分裂パターンは、s:シングレット、d:ダブレット、t:トリプレット、q:カルテット、m:マルチプレット、br:ブロードを意味する。
N-シアノメチル-N-(3,5-ジクロロピリド-4-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
融点:196℃
1H-NMR(500MHz,CDCl3) δ 0.35(m,2H)、0.65(m,2H)、1.21(m,1H)、3.78(d,2H)、4.65(s,2H)、6.61(t,1H)、6.87(dd,1H)、6.96(d,1H)、7.15(d,1H)、8.57(s,2H).
N-(3,5-ジクロロピリド-4-イル)-N-メトキシカルボニルメチル-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
N-(3,5-ジクロロピリド-4-イル)-N-(2-ヒドロキシエチル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
融点:97℃
1H-NMR(400MHz,CDCl3) δ 0.32(m,2H)、0.64(m,2H)、1.20(m,1H)、2.91(brs,1H)、3.76(d,2H)、3.95(dd,2H)、4.01(d,2H)、6.59(t,1H)、6.89(dd,1H)、6.93(dd,1H)、7.08(d,1H)、8.49(s,2H).
N-(3,5-ジクロロピリド-4-イル)-N-メチル-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
融点:68℃
1H-NMR(400MHz,CDCl3) δ 0.32(m,2H)、0.63(m,2H)、1.20(m,1H)、3.31(s,3H)、3.76(d,2H)、6.57(t,1H)、6.90(dd,1H)、6.94(d,1H)、7.08(d,1H)、8.48(s,2H).
2,2-ジメチル-4-ヨードメチル-1,3-ジオキソラン
N-(3,5-ジクロロピリド-4-イル)-N-(2,2-ジメチル-1,3-ジオキソラン-4-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
N-(3,5-ジクロロピリド-4-イル)-N-(2,3-ジヒドロキシプロパン-1-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
1H-NMR(500MHz,CDCl3) δ 0.33(m,2H)、0.64(m,2H)、1.20(m,1H)、1.26(m,2H)、2.55(brs,1H)、3.47(brs,1H)、3.75(d,2H)、3.95(m,3H)、6.59(t,1H)、6.89(dd,1H)、6.95(d,1H)、7.06(d,1H)、8.50(s,2H).
N-(3,5-ジクロロピリド-4-イル)-N-(3-tert-ブチルジメチルシリルオキシプロパン-1-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
N-(3,5-ジクロロピリド-4-イル)-N-(3-ヒドロキシプロパン-1-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
1H-NMR(400MHz,CDCl3) δ 0.32(m,2H)、0.63(m,2H)、1.20(m,1H)、1.84(m,2H)、3.75(d,2H)、3.78(t,2H)、3.98(t,2H)、6.58(t,1H)、6.88(dd,1H)、6.94(d,1H)、7.05(d,1H)、8.49(s,2H).
N-(3,5-ジクロロピリド-4-イル)-N-メトキシメチル-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
1H-NMR(500MHz,CDCl3) δ 0.32(m,2H)、0.64(m,2H)、1.20(m,1H)、3.60(s,3H)、3.75(d,2H)、5.26(s,2H)、6.57(t,1H)、6.92(dd,1H)、6.95(d,1H)、7.10(d,1H)、8.50(s,2H).
N-カルバモイルメチル-N-(3,5-ジクロロピリド-4-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
融点:90.99℃
1H-NMR(500MHz,DMSO-d6) δ 0.38(m,2H)、0.56(m,2H)、1.23(m,1H)、3.91(d,2H)、4.75(s,2H)、7.15(t,1H)、7.19(d,1H)、7.48(s,1H)、7.49(dd,1H)、7.59(d,1H)、7.78(s,1H)、8.28(s,2H).
N-カルボキシメチル-N-(3,5-ジクロロピリド-4-イル)-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミド
融点:182℃
1H-NMR(500MHz,CDCl3) δ 0.32(m,2H)、0.64(m,2H)、1.20(m,1H)、3.76(d,2H)、4.45(s,2H)、6.61(t,1H)、6.92(dd,1H)、6.96(d,1H)、7.15(d,1H)、8.50(s,2H).
補酵素(NADPH生成系)を含む100mmol/L Tris-HCl緩衝液に、ヒト肝臓酵素画分を0.5mg蛋白/mLの濃度になるように加え、37℃で5分間プレインキュベーションした。この溶液に各化合物を0.1μmol/Lの濃度になるように加え、37℃で1時間インキュベーションした後、水冷したアセトニトリルを添加して反応を停止した。得られた溶液をろ過した後、LC-MS/MSで定量を行いロフルミラストへの代謝率(%)を算出した。なお、表1中、「加熱処理あり」とは、ヒト肝臓酵素画分を添加する前に、予め加熱処理することにより、代謝酵素を不活化させたことを意味する。
リン酸緩衝液(pH7)10mLに各化合物を過剰量加え、30分間超音波処理を行なった。得られた懸濁液をろ過し、ろ液0.5mLにアセトニトリル0.5mLを加え、試験溶液とし、試験溶液中の各化合物の濃度を高速液体クロマトグラフ法により測定して、飽和溶解度として算出した。なお、比較例1としてロフルミラストを用いた。
ヘアレスマウスの背部皮膚を摘出し、当該皮膚片の表皮側(適用面積:1cm2)が被験化合物(実施例、比較例または参考例の化合物)の溶液に接するように、フランツ型拡散セル(ガラスセル)にセットした。また、フロー液としてPBS(リン酸緩衝生理食塩水)を用い、流量を5mL/時間とし、恒温槽温度は32℃と設定した。次に、各被験化合物の濃度が1w/w%となるように、ジメチルスルホキシドを加えた後、よく撹拌して被験化合物の溶液を調製した。得られた被験化合物の溶液100μLを、上記フランツ型拡散セルのドナーチャンバーに導入した。被験化合物の溶液を導入してから、2時間毎に24時間後までフロー液をサンプリングした。2時間毎にサンプリングされたフロー液にアセトニトリルを加えて2倍に希釈し、遠心分離後、その上清をHPLC分析用試料として得た。得られた分析用試料をそれぞれ、高速液体クロマトグラフ法により分析し、Jmax(最大皮膚透過速度)及び24時間の累積透過量を算出した。なお、比較例1としてロフルミラストを用いた。
Claims (8)
- Rが、水素原子、水酸基で置換されていてもよいC1-6アルキル基又はシアノ基である、請求項1に記載の化合物又はその薬学的に許容される塩。
- Rが、水素原子、ヒドロキシメチル基、メトキシ基又はシアノ基である、請求項1に記載の化合物又はその薬学的に許容される塩。
- Rが、水素原子、ヒドロキシメチル基又はシアノ基である、請求項1に記載の化合物又はその薬学的に許容される塩。
- 請求項1~4のいずれか一項に記載の化合物又はその薬学的に許容される塩を含有する医薬組成物。
- PDE4阻害剤である、請求項5に記載の医薬組成物。
- PDE4を阻害することが有効な疾患又は症状の治療剤である、請求項5に記載の医薬組成物。
- 前記疾患又は症状が慢性閉塞性肺疾患である、請求項7に記載の医薬組成物。
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| ES15852038T ES2777550T3 (es) | 2014-10-24 | 2015-10-21 | Profármaco de roflumilast |
| KR1020177003343A KR101878621B1 (ko) | 2014-10-24 | 2015-10-21 | 프로드러그 |
| EP15852038.7A EP3210974B1 (en) | 2014-10-24 | 2015-10-21 | Prodrug of roflumilast |
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| WO2018003867A1 (ja) * | 2016-07-01 | 2018-01-04 | 久光製薬株式会社 | N-(3,5-ジクロロピリド-4-イル)-n-メチル-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミドの製造方法 |
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| JP2005529930A (ja) * | 2002-05-28 | 2005-10-06 | アルタナ ファルマ アクチエンゲゼルシャフト | 局所適用可能な薬剤学的製剤 |
| JP2011219364A (ja) * | 2010-04-02 | 2011-11-04 | Hisamitsu Pharmaceut Co Inc | 経皮吸収促進剤、および該経皮吸収促進剤を含有する経皮製剤 |
| WO2015013715A2 (en) * | 2013-07-26 | 2015-01-29 | Thr Regents Of The University Of California | C-h fluorination of heterocycles with silver (ii) fluoride |
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| KR100331255B1 (ko) | 1993-07-02 | 2002-10-25 | 빅굴덴 롬베르그 케미쉐 화부리크 게엠베하 | 플루오로알콕시-치환된벤즈아미드및시클릭뉴클레오티드포스포디에스테라아제억제제로서의그의용도 |
| MY140561A (en) | 2002-02-20 | 2009-12-31 | Nycomed Gmbh | Dosage form containing pde 4 inhibitor as active ingredient |
| DE102004046235A1 (de) | 2004-09-22 | 2006-03-30 | Altana Pharma Ag | Arzneimittelzubereitung |
| EP2585066B1 (en) * | 2010-06-24 | 2018-09-26 | Alkermes Pharma Ireland Limited | Prodrugs of nh-acidic compounds: ester, carbonate, carbamate and phosphonate derivatives |
| CN103073490A (zh) * | 2012-12-21 | 2013-05-01 | 北京万全德众医药生物技术有限公司 | 罗氟司特活性代谢物的制备方法 |
| CN104107173B (zh) * | 2014-06-27 | 2017-06-27 | 山东泰田新药开发有限公司 | 一种罗氟司特片剂及其制备方法 |
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| WO2018003867A1 (ja) * | 2016-07-01 | 2018-01-04 | 久光製薬株式会社 | N-(3,5-ジクロロピリド-4-イル)-n-メチル-3-シクロプロピルメトキシ-4-ジフルオロメトキシベンズアミドの製造方法 |
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| JP5938537B1 (ja) | 2016-06-22 |
| KR20170047224A (ko) | 2017-05-04 |
| EP3210974A4 (en) | 2018-04-11 |
| EP3210974B1 (en) | 2020-01-29 |
| ES2777550T3 (es) | 2020-08-05 |
| US9969688B2 (en) | 2018-05-15 |
| CN106573889B (zh) | 2019-01-01 |
| JPWO2016063906A1 (ja) | 2017-04-27 |
| CN106573889A (zh) | 2017-04-19 |
| TW201617318A (zh) | 2016-05-16 |
| KR101878621B1 (ko) | 2018-07-13 |
| TWI648264B (zh) | 2019-01-21 |
| US20170233343A1 (en) | 2017-08-17 |
| EP3210974A1 (en) | 2017-08-30 |
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