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WO2011159920A1 - Dérivés de [5,6]-dihydro-2h-pyran-2-one - Google Patents

Dérivés de [5,6]-dihydro-2h-pyran-2-one Download PDF

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Publication number
WO2011159920A1
WO2011159920A1 PCT/US2011/040731 US2011040731W WO2011159920A1 WO 2011159920 A1 WO2011159920 A1 WO 2011159920A1 US 2011040731 W US2011040731 W US 2011040731W WO 2011159920 A1 WO2011159920 A1 WO 2011159920A1
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Prior art keywords
compound
same
deuterium
hydrogen
formula
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Craig Masse
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Concert Pharmaceuticals Inc
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Concert Pharmaceuticals Inc
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B59/00—Introduction of isotopes of elements into organic compounds ; Labelled organic compounds per se
    • C07B59/002—Heterocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems

Definitions

  • ADME absorption, distribution, metabolism and/or excretion
  • ADME limitation that affects many medicines is the formation of toxic or biologically reactive metabolites.
  • some patients receiving the drug may experience toxicities, or the safe dosing of such drugs may be limited such that patients receive a suboptimal amount of the active agent.
  • modifying dosing intervals or formulation approaches can help to reduce clinical adverse effects, but often the formation of such undesirable metabolites is intrinsic to the metabolism of the compound.
  • a metabolic inhibitor will be co-administered with a drug that is cleared too rapidly.
  • a drug that is cleared too rapidly.
  • the FDA recommends that these drugs be co-dosed with ritonavir, an inhibitor of cytochrome P450 enzyme 3A4 (CYP3A4), the enzyme typically responsible for their metabolism (see Kempf, D.J. et al., Antimicrobial agents and chemotherapy, 1997, 41(3): 654-60).
  • CYP3A4 cytochrome P450 enzyme 3A4
  • Ritonavir causes adverse effects and adds to the pill burden for HIV patients who must already take a combination of different drugs.
  • the CYP2D6 inhibitor quinidine has been added to dextromethorphan for the purpose of reducing rapid CYP2D6 metabolism of dextromethorphan in a treatment of pseudobulbar affect.
  • Quinidine has unwanted side effects that greatly limit its use in potential combination therapy (see Wang, L et al., Clinical Pharmacology and Therapeutics, 1994, 56(6 Pt 1): 659-67; and FDA label for quinidine at www.accessdata.fda.gov).
  • a potentially attractive strategy for improving a drug's metabolic properties is deuterium modification.
  • Deuterium is a safe, stable, nonradioactive isotope of hydrogen. Compared to hydrogen, deuterium forms stronger bonds with carbon. In select cases, the increased bond strength imparted by deuterium can positively impact the ADME properties of a drug, creating the potential for improved drug efficacy, safety, and/or tolerability.
  • the size and shape of deuterium are essentially identical to those of hydrogen, replacement of hydrogen by deuterium would not be expected to affect the biochemical potency and selectivity of the drug as compared to the original chemical entity that contains only hydrogen.
  • Filibuvir also known as (i?)-6-cyclopentyl-6-(2-(2,6-diethylpyridin-4-yl)ethyl)-3- ((5,7-dimethyl-[l,2,4]triazolo[l,5-a]pyrimidin-2-yl)methyl)-4-hydroxy-5,6-dihydro-2H- pyran-2-one, acts as an inhibitor of the NS5B RNA polymerase of the hepatitis C virus (HCV).
  • HCV hepatitis C virus
  • This invention relates to novel 5,6-dihydro-2H-pyran-2-one derivatives and pharmaceutically acceptable salts thereof.
  • This invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by administering an inhibitor of the NS5B RNA polymerase of the HCV virus.
  • the compounds and compositions of the invention are useful, for example, for the treatment of chronic hepatitis C viral infection. Definitions
  • treat means decrease, suppress, attenuate, diminish, arrest, or stabilize the development or progression of a disease (e.g., a disease or disorder delineated herein), lessen the severity of the disease or improve the symptoms associated with the disease.
  • a disease e.g., a disease or disorder delineated herein
  • Disease means any condition or disorder that damages or interferes with the normal function of a cell, tissue, or organ.
  • any atom not specifically designated as a particular isotope is meant to represent any stable isotope of that atom.
  • a position is designated specifically as “H” or “hydrogen”
  • the position is understood to have hydrogen at its natural abundance isotopic composition.
  • a position is designated specifically as “D” or “deuterium”
  • the position is understood to have deuterium at an abundance that is at least 3340 times greater than the natural abundance of deuterium, which is 0.015% (i.e., at least 50.1% incorporation of deuterium).
  • isotopic enrichment factor means the ratio between the isotopic abundance and the natural abundance of a specified isotope.
  • a compound of this invention has an isotopic enrichment factor for each designated deuterium atom of at least 3500 (52.5% deuterium
  • incorporation at each designated deuterium atom at least 4000 (60% deuterium incorporation), at least 4500 (67.5% deuterium incorporation), at least 5000 (75% deuterium), at least 5500 (82.5% deuterium incorporation), at least 6000 (90% deuterium incorporation), at least 6333.3 (95% deuterium incorporation), at least 6466.7 (97% deuterium incorporation), at least 6600 (99% deuterium incorporation), or at least 6633.3 (99.5% deuterium incorporation).
  • isotopologue refers to a species in which the chemical structure differs from a specific compound of this invention only in the isotopic composition thereof.
  • a compound represented by a particular chemical structure containing indicated deuterium atoms will also contain lesser amounts of isotopologues having hydrogen atoms at one or more of the designated deuterium positions in that structure.
  • the relative amount of such isotopologues in a compound of this invention will depend upon a number of factors including the isotopic purity of deuterated reagents used to make the compound and the efficiency of incorporation of deuterium in the various synthesis steps used to prepare the compound.
  • the relative amount of such isotopologues in toto will be less than 49.9% of the compound. In other embodiments, the relative amount of such isotopologues in toto will be less than 47.5%, less than 40%, less than 32.5%, less than 25%, less than 17.5%, less than 10%, less than 5%, less than 3%, less than 1%, or less than 0.5% of the compound.
  • the invention also provides salts of the compounds of the invention.
  • a salt of a compound of this invention is formed between an acid and a basic group of the compound, such as an amino functional group, or a base and an acidic group of the compound, such as a carboxyl functional group.
  • the compound is a pharmaceutically acceptable acid addition salt.
  • pharmaceutically acceptable refers to a component that is, within the scope of sound medical judgment, suitable for use in contact with the tissues of humans and other mammals without undue toxicity, irritation, allergic response and the like, and are commensurate with a reasonable benefit/risk ratio.
  • pharmaceutically acceptable salt means any non-toxic salt that, upon administration to a recipient, is capable of providing, either directly or indirectly, a compound of this invention.
  • pharmaceutically acceptable counterion is an ionic portion of a salt that is not toxic when released from the salt upon administration to a recipient.
  • Acids commonly employed to form pharmaceutically acceptable salts include inorganic acids such as hydrogen bisulfide, hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid and phosphoric acid, as well as organic acids such as para- toluenesulfonic acid, salicylic acid, tartaric acid, bitartaric acid, ascorbic acid, maleic acid, besylic acid, fumaric acid, gluconic acid, glucuronic acid, formic acid, glutamic acid, methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, lactic acid, oxalic acid, para-bromophenylsulfonic acid, carbonic acid, succinic acid, citric acid, benzoic acid and acetic acid, as well as related inorganic and organic acids.
  • organic acids such as para- toluenesulfonic acid, salicylic acid, tartaric acid, bitartaric acid, ascorbic acid
  • salts thus include sulfate, pyrosulfate, bisulfate, sulfite, bisulfite, phosphate, monohydrogenphosphate, dihydrogenphosphate, metaphosphate, pyrophosphate, chloride, bromide, iodide, acetate, propionate, decanoate, caprylate, acrylate, formate, isobutyrate, caprate, heptanoate, propiolate, oxalate, malonate, succinate, suberate, sebacate, fumarate, maleate, butyne-l,4-dioate, hexyne-l,6-dioate, benzoate, chlorobenzoate, methylbenzoate, dinitrobenzoate, hydroxybenzoate, methoxybenzoate, phthalate, terephthalate, sulfonate, xylene sulfonate, phenylacetate, phenylpropionate
  • the compounds of the present invention may contain an asymmetric carbon atom, for example, as the result of deuterium substitution or otherwise.
  • compounds of this invention can exist as either individual enantiomers, or mixtures of the two enantiomers.
  • a compound of the present invention may exist as either a racemic mixture or a scalemic mixture, or as individual respective stereoisomers that are substantially free from another possible stereoisomer.
  • substantially free of other stereoisomers as used herein means less than 25% of other stereoisomers, preferably less than 10% of other stereoisomers, more preferably less than 5% of other stereoisomers and most preferably less than 2% of other stereoisomers are present.
  • stable compounds refers to compounds which possess stability sufficient to allow for their manufacture and which maintain the integrity of the compound for a sufficient period of time to be useful for the purposes detailed herein (e.g., formulation into therapeutic products, intermediates for use in production of therapeutic compounds, isolatable or storable intermediate compounds, treating a disease or condition responsive to therapeutic agents).
  • Substituted with deuterium refers to the replacement of one or more hydrogen atoms with a corresponding number of deuterium atoms.
  • variable may be referred to generally (e.g., "each Y") or may be referred to specifically (e.g., Y la , Y 2a , Y 2b , etc.). Unless otherwise indicated, when a variable is referred to generally, it is meant to include all specific embodiments of that particular variable.
  • each R 1 is the same and is selected from CD 3 CD 2 -, CD 3 CH 2 -, CH 3 CD 2 -, and CH 3 CH 2 -; each R 2 is the same and is selected from -CD 3 , -CD 2 H, -CDH 2 , and -CH 3 ;
  • each of X la , X lb , X 2a , and X 2b is independently hydrogen or deuterium;
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is independently hydrogen or deuterium;
  • each of Z la and Z lb is independently hydrogen or deuterium
  • W is hydrogen or deuterium
  • each V is the same and is selected from hydrogen and deuterium
  • each of X la , X lb , X 2a , and X 2b is hydrogen, each of yla ⁇ 2 ⁇ ? y 2b ⁇ 3 ⁇ ? ⁇ 3 ⁇ ⁇ 4 ⁇ ? ⁇ 5 ⁇ ? ⁇ y 5b ⁇ hydrogen? each Q f ⁇ 1* and ⁇ lb ⁇ hydrogen, W is hydrogen, and each V is hydrogen, then R 2 is -CD 3 , -CD 2 H, or -CDH 2 .
  • R 1 is CD 3 CD 2 -, CD 3 CH 2 -, CH 3 CD 2 -, or CH 3 CH 2 - ;
  • R 2 is -CD 3 or -CH 3 ;
  • X la and X lb are the same;
  • X 2a and X 2b are the same;
  • Y 2a and Y 2b are the same;
  • Y 3a and Y 3b are the same;
  • Y 4a and Y 4b are the same;
  • Y 5a and Y 5b are the same and
  • Z la and Z lb are the same.
  • each R 1 is the same and is CD 3 CD 2 - or CH 3 CH 2 - .
  • each X is the same.
  • each one of Y 2a , Y 2b , Y 5a , and Y 5b is the same.
  • each one of Y 3a , Y 3b , Y 4a , and Y 4b is the same.
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is the same.
  • any atom not designated as deuterium in any of the embodiments set forth above is present at its natural isotopic abundance.
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is deuterium; each of X la , X lb , X 2a , and X 2b is the same; and each of Z la and Z lb is the same.
  • each of X la , X lb , X 2a , and X 2b is deuterium.
  • each of X la , X lb , X 2a , and X 2b is hydrogen.
  • each of Z la and Z lb is deuterium.
  • each of Z la and Z lb is hydrogen.
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is D; each of X la , X lb , X 2a , and X 2b is the same; each of Z la and Z lb is the same; and the compound is selected from any one of the compounds (Cmpd) set forth in Table 1 below, or a tautomer thereof, or a pharmaceutical salt of the compound or tautomer, wherein any atom not designated as deuterium is present at its natural isotopic abundance:
  • each X refers to each of X la , X lb , X 2a , and X 2b ;
  • each “Z” refers to each of Z la and Z lb ;
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is D.
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is hydrogen; each of X la , X lb , X 2a , and X 2b is the same; and each of Z la and Z lb is the same.
  • each of X la , X lb , X 2a , and X 2b is deuterium.
  • each of X la , X lb , X 2a , and X 2b is hydrogen.
  • each of Z la and Z lb is deuterium.
  • each of Z la and Z lb is hydrogen.
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is hydrogen; each of X la , X lb , X 2a , and X 2b is the same; each of Z la and Z lb is the same; and the compound is selected from any one of the compounds (Cmpd) set forth in Table 2 below, or a tautomer thereof, or a pharmaceutical salt of the compound or tautomer, wherein any atom not designated as deuterium is present at its natural isotopic abundance: [44] Table 2.
  • each X refers to each of X la , X lb , X 2a , and X 2b ;
  • each “Z” refers to each of Z la and Z lb ;
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is H.
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is deuterium; each of X la and X lb is the same, each of X 2a and X 2b is the same, and one set of either X la and X lb or X 2a and X 2b is D; and each of Z la and Z lb is the same.
  • each of X la and X lb is D and each of X 2a and X 2b is H.
  • each of X la and X lb is H and each of X 2a and X 2b is D.
  • each of Z la and Z lb is deuterium.
  • each of Z la and Z lb is hydrogen.
  • each of Y la , Y 2a , Y 2b , Y 3a , Y 3b , Y 4a , Y 4b , Y 5a , and Y 5b is hydrogen; each of X la and X lb is the same, each of X 2a and X 2b is the same, and one set of either X la and X lb or X 2a and X 2b is D; and each of Z la and Z lb is the same.
  • each of X la and X lb is D and each of X 2a and X 2b is H.
  • each of X la and X lb is H and each of X 2a and X 2b is D.
  • each of Z la and Z lb is deuterium.
  • each of Z la and Z lb is hydrogen.
  • the invention is directed to a compound of Formula Ila or a salt thereof:
  • each R 1 is the same and is selected from CD 3 CD 2 -, CD 3 CH 2 -, CH 3 CD 2 -, and CH 3 CH 2 -; each V is the same and is selected from hydrogen and deuterium; and
  • A is -OH or -Br
  • each V is deuterium.
  • each R 1 is CD 3 CD 2 -.
  • the invention is directed to a compound of Formula lib or a salt thereof:
  • each R 2 is the same and is selected from -CD 3 , -CD 2 H, -CDH 2 , and -CH 3 ;
  • W is hydrogen or deuterium
  • Z la is hydrogen or deuterium
  • J is OH, and K and Z la are the same; or (ii) J and K taken together with the carbon to which they are attached form C(O); provided that if each R 2 is -CH 3 and W is hydrogen, then Z la is deuterium.
  • Such methods can be carried out utilizing corresponding deuterated and optionally, other isotope-containing reagents and/or intermediates to synthesize the compounds delineated herein, or invoking standard synthetic protocols known in the art for introducing isotopic atoms to a chemical structure.
  • Scheme 1 A convenient method for synthesizing compounds of Formula I is depicted in Scheme 1.
  • Scheme 1 A Convenient Route to Com ounds of Formula I.
  • compositions comprising an effective amount of a compound of Formula I (e.g., including any of the formulae herein), or a tautomer thereof, or a pharmaceutical salt of the compound or tautomer; and a
  • the carrier(s) are "acceptable” in the sense of being compatible with the other ingredients of the formulation and, in the case of a
  • the present invention provides a pyrogen-free
  • composition comprising an effective amount of a compound of Formula I (e.g., including any of the formulae herein), or a tautomer thereof, or a pharmaceutical salt of the compound or tautomer; and a pharmaceutically acceptable
  • “Pharmaceutically acceptable carriers, adjuvants and vehicles that may be used in the pharmaceutical compositions of this invention include, but are not limited to, ion exchangers, alumina, aluminum stearate, lecithin, serum proteins, such as human serum albumin, buffer substances such as phosphates, glycine, sorbic acid, potassium sorbate, partial glyceride mixtures of saturated vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salts, colloidal silica, magnesium trisilicate, polyvinyl pyrrolidone, cellulose-based substances, polyethylene glycol, sodium carboxymethylcellulose, polyacrylates, waxes, polyethylene-polyoxypropylene -block polymers, polyethylene glycol and wool fat.
  • ion exchangers alumina, aluminum stearate, lecithin
  • serum proteins such as human serum albumin
  • the solubility and bioavailability of the compounds of the present invention in pharmaceutical compositions may be enhanced by methods well-known in the art.
  • One method includes the use of lipid excipients in the formulation. See “Oral Lipid-Based Formulations: Enhancing the Bioavailability of Poorly Water-Soluble Drugs (Drugs and the Pharmaceutical Sciences),” David J. Hauss, ed. Informa Healthcare, 2007; and “Role of Lipid Excipients in Modifying Oral and Parenteral Drug Delivery: Basic Principles and Biological Examples," Kishor M. Wasan, ed. Wiley-Interscience, 2006.
  • Another known method of enhancing bioavailability is the use of an amorphous form of a compound of this invention optionally formulated with a poloxamer, such as LUTROLTM and PLURONICTM (BASF Corporation), or block copolymers of ethylene oxide and propylene oxide. See United States patent 7,014,866; and United States patent publications 20060094744 and 20060079502.
  • compositions of the invention include those suitable for oral, rectal, nasal, topical (including buccal and sublingual), vaginal or parenteral (including subcutaneous, intramuscular, intravenous and intradermal) administration.
  • the compound of the formulae herein is administered transdermally (e.g., using a transdermal patch or iontophoretic techniques).
  • Other formulations may conveniently be presented in unit dosage form, e.g., tablets, sustained release capsules, and in liposomes, and may be prepared by any methods well known in the art of pharmacy. See, for example, Remington: The Science and Practice of Pharmacy, Lippincott Williams & Wilkins, Baltimore, MD (20th ed. 2000).
  • Such preparative methods include the step of bringing into association with the molecule to be administered ingredients such as the carrier that constitutes one or more accessory ingredients.
  • ingredients such as the carrier that constitutes one or more accessory ingredients.
  • the compositions are prepared by uniformly and intimately bringing into association the active ingredients with liquid carriers, liposomes or finely divided solid carriers, or both, and then, if necessary, shaping the product.
  • compositions of the present invention suitable for oral administration may be presented as discrete units such as capsules, sachets, or tablets each containing a predetermined amount of the active ingredient; a powder or granules; a solution or a suspension in an aqueous liquid or a non-aqueous liquid; an oil-in-water liquid emulsion; a water-in-oil liquid emulsion; packed in liposomes; or as a bolus, etc.
  • Soft gelatin capsules can be useful for containing such suspensions, which may beneficially increase the rate of compound absorption.
  • carriers that are commonly used include lactose and corn starch.
  • Lubricating agents such as magnesium stearate, are also typically added.
  • useful diluents include lactose and dried cornstarch.
  • aqueous suspensions are administered orally, the active ingredient is combined with emulsifying and suspending agents. If desired, certain sweetening and/or flavoring and/or coloring agents may be added.
  • compositions suitable for oral administration include lozenges comprising the ingredients in a flavored basis, usually sucrose and acacia or tragacanth; and pastilles comprising the active ingredient in an inert basis such as gelatin and glycerin, or sucrose and acacia.
  • compositions suitable for parenteral administration include aqueous and nonaqueous sterile injection solutions which may contain anti-oxidants, buffers, bacteriostats and solutes which render the formulation isotonic with the blood of the intended recipient; and aqueous and non-aqueous sterile suspensions which may include suspending agents and thickening agents.
  • the formulations may be presented in unit- dose or multi-dose containers, for example, sealed ampules and vials, and may be stored in a freeze dried (lyophilized) condition requiring only the addition of the sterile liquid carrier, for example water for injections, immediately prior to use.
  • Extemporaneous injection solutions and suspensions may be prepared from sterile powders, granules and tablets.
  • Such injection solutions may be in the form, for example, of a sterile injectable aqueous or oleaginous suspension.
  • This suspension may be formulated according to techniques known in the art using suitable dispersing or wetting agents (such as, for example, Tween 80) and suspending agents.
  • the sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally-acceptable diluent or solvent, for example, as a solution in 1,3-butanediol.
  • suitable vehicles and solvents that may be employed are mannitol, water, Ringer's solution and isotonic sodium chloride solution.
  • sterile, fixed oils are conventionally employed as a solvent or suspending medium.
  • any bland fixed oil may be employed including synthetic mono- or diglycerides.
  • Fatty acids, such as oleic acid and its glyceride derivatives are useful in the preparation of injectables, as are natural pharmaceutically-acceptable oils, such as olive oil or castor oil, especially in their polyoxyethylated versions.
  • These oil solutions or suspensions may also contain a long- chain alcohol diluent or dispersant.
  • compositions of this invention may be administered in the form of suppositories for rectal administration.
  • These compositions can be prepared by mixing a compound of this invention with a suitable non-irritating excipient which is solid at room temperature but liquid at the rectal temperature and therefore will melt in the rectum to release the active components.
  • suitable non-irritating excipient include, but are not limited to, cocoa butter, beeswax and polyethylene glycols.
  • compositions of this invention may be administered by nasal aerosol or inhalation.
  • Such compositions are prepared according to techniques well- known in the art of pharmaceutical formulation and may be prepared as solutions in saline, employing benzyl alcohol or other suitable preservatives, absorption promoters to enhance bioavailability, fluorocarbons, and/or other solubilizing or dispersing agents known in the art. See, e.g.: Rabinowitz JD and Zaffaroni AC, US Patent 6,803,031, assigned to Alexza Molecular Delivery Corporation.
  • Topical administration of the pharmaceutical compositions of this invention is especially useful when the desired treatment involves areas or organs readily accessible by topical application.
  • the pharmaceutical composition should be formulated with a suitable ointment containing the active components suspended or dissolved in a carrier.
  • Carriers for topical administration of the compounds of this invention include, but are not limited to, mineral oil, liquid petroleum, white petroleum, propylene glycol, polyoxyethylene polyoxypropylene compound, emulsifying wax, and water.
  • the pharmaceutical composition can be formulated with a suitable lotion or cream containing the active compound suspended or dissolved in a carrier.
  • Suitable carriers include, but are not limited to, mineral oil, sorbitan monostearate, polysorbate 60, cetyl esters wax, cetearyl alcohol, 2- octyldodecanol, benzyl alcohol, and water.
  • the pharmaceutical compositions of this invention may also be topically applied to the lower intestinal tract by rectal suppository formulation or in a suitable enema formulation. Topically-transdermal patches and iontophoretic administration are also included in this invention.
  • Application of the subject therapeutics may be local, so as to be administered at the site of interest.
  • Various techniques can be used for providing the subject
  • compositions at the site of interest such as injection, use of catheters, trocars, projectiles, pluronic gel, stents, sustained drug release polymers or other device which provides for internal access.
  • the compounds of this invention may be incorporated into compositions for coating an implantable medical device, such as prostheses, artificial valves, vascular grafts, stents, or catheters.
  • Suitable coatings and the general preparation of coated implantable devices are known in the art and are exemplified in US Patents 6,099,562; 5,886,026; and 5,304,121.
  • the coatings are typically biocompatible polymeric materials such as a hydrogel polymer,
  • Coatings for invasive devices are to be included within the definition of pharmaceutically acceptable carrier, adjuvant or vehicle, as those terms are used herein.
  • the invention provides a method of coating an implantable medical device comprising the step of contacting said device with the coating composition described above. It will be obvious to those skilled in the art that the coating of the device will occur prior to implantation into a mammal.
  • the invention provides a method of impregnating an implantable drug release device comprising the step of contacting said drug release device with a compound or composition of this invention.
  • Implantable drug release devices include, but are not limited to, biodegradable polymer capsules or bullets, non-degradable, diffusible polymer capsules and biodegradable polymer wafers.
  • the invention provides an implantable medical device coated with a compound or a composition comprising a compound of this invention, such that said compound is therapeutically active.
  • the invention provides an implantable drug release device impregnated with or containing a compound or a composition comprising a compound of this invention, such that said compound is released from said device and is therapeutically active.
  • composition of this invention may be painted onto the organ, or a composition of this invention may be applied in any other convenient way.
  • a composition of this invention further comprises a second therapeutic agent.
  • the second therapeutic agent may be selected from any compound or therapeutic agent known to have or that demonstrates advantageous properties when administered with a compound having the same mechanism of action as filibuvir.
  • Such agents include beta blockers, aldose reductase inhibitors, NSAIDs, 5HTi D agonists, dopamine D 2 receptor antagonists, secale alkaloids, a second calcium channel blocker and neurokinin antagonists.
  • the invention provides separate dosage forms of a compound of this invention and one or more of any of the above-described second therapeutic agents, wherein the compound and second therapeutic agent are associated with one another.
  • association with one another means that the separate dosage forms are packaged together or otherwise attached to one another such that it is readily apparent that the separate dosage forms are intended to be sold and administered together (within less than 24 hours of one another, consecutively or simultaneously).
  • the compound of the present invention is present in an effective amount.
  • effective amount refers to an amount which, when administered in a proper dosing regimen, is sufficient to treat the target disorder.
  • an effective amount of a compound of this invention can range from 10 mg to 200 mg per day, from 50-100 mg/day, or from 20-50 mg/day.
  • Effective doses will also vary, as recognized by those skilled in the art, depending on the diseases treated, the severity of the disease, the route of administration, the sex, age and general health condition of the subject, excipient usage, the possibility of co-usage with other therapeutic treatments such as use of other agents and the judgment of the treating physician. For example, guidance for selecting an effective dose can be determined by reference to the prescribing information for filibuvir.
  • an effective amount of the second therapeutic agent is between about 20% and 100% of the dosage normally utilized in a monotherapy regime using just that agent.
  • an effective amount is between about 70% and 100% of the normal monotherapeutic dose.
  • the normal monotherapeutic dosages of these second therapeutic agents are well known in the art. See, e.g., Wells et al, eds., Pharmacotherapy Handbook, 2nd Edition, Appleton and Lange, Stamford, Conn. (2000); PDR Pharmacopoeia, Tarascon Pocket Pharmacopoeia 2000, Deluxe Edition, Tarascon Publishing, Loma Linda, Calif. (2000), each of which references are incorporated herein by reference in their entirety.
  • Second therapeutic agents that act synergistically with the compounds of this invention allow the effective dosage of the second therapeutic agent and/or the compound of this invention to be reduced from that required in a monotherapy. This has the advantage of minimizing toxic side effects of either the second therapeutic agent of a compound of this invention, synergistic improvements in efficacy, improved ease of administration or use and/or reduced overall expense of compound preparation or formulation.
  • the invention provides a method of inhibiting hepatitis C virus polymerase activity comprising contacting the polymerase with one or more compounds of Formula I or or a tautomer thereof, or a pharmaceutical salt of the compound or tautomer herein.
  • the invention provides a method of treating a subject suffering from an infection with hepatitis C virus, comprising the step of administering to the subject in need thereof an effective amount of a compound or a composition of this invention.
  • the invention provides a method of inhibiting hepatitis C virus replication in a subject previously diagnosed as being infected with hepatitis C virus, comprising the step of administering to the subject in need thereof an effective amount of a compound or a composition of this invention.
  • Identifying a subject in need of such treatment can be in the judgment of a subject or a health care professional and can be subjective (e.g. opinion) or objective (e.g.
  • any of the above methods of treatment comprises the further step of co-administering to the subject in need thereof one or more second therapeutic agents, for example those selected from, for example, HCV inhibitors such as ribavirin, consensus interferon (Infergen), albuferon and other Long- Acting Interferons, natural interferon, interferon omega, viramidine, telaprevir, boceprevir, PF-0341390, Debio 025, PSI-7977, TMC-435, ITX5061, VX-759, narlaprevir, BMS-790052, GS 9190, A-832, BI 207127, vaniprevir, ANA598, RG7227, IDX-184; or HIV inhibitors such as nelfmavir, delavirdine, indinavir, nevirapine, saquinavir, and tenofovir.
  • HCV inhibitors such as ribavirin, consensus interferon (Infergen), albuferon
  • co-administered means that the second therapeutic agent may be administered together with a compound of this invention as part of a single dosage form (such as a composition of this invention comprising a compound of the invention and an second therapeutic agent as described above) or as separate, multiple dosage forms. Alternatively, the additional agent may be administered prior to, consecutively with, or following the administration of a compound of this invention. In such combination therapy treatment, both the compounds of this invention and the second therapeutic agent(s) are administered by conventional methods.
  • composition of this invention comprising both a compound of the invention and a second therapeutic agent, to a subject does not preclude the separate administration of that same therapeutic agent, any other second therapeutic agent or any compound of this invention to said subject at another time during a course of treatment.
  • the effective amount of the compound of this invention is less than its effective amount would be where the second therapeutic agent is not
  • the effective amount of the second therapeutic agent is less than its effective amount would be where the compound of this invention is not administered. In this way, undesired side effects associated with high doses of either agent may be minimized.
  • Other potential advantages including without limitation improved dosing regimens and/or reduced drug cost) will be apparent to those of skill in the art.
  • the invention provides the use of a compound of Formula I or a tautomer thereof, or a pharmaceutical salt of the compound or tautomer, alone or together with one or more of the above-described second therapeutic agents in the manufacture of a medicament, either as a single composition or as separate dosage forms, for treatment or prevention in a subject of a disease, disorder or symptom set forth above.
  • Another aspect of the invention is a compound of Formula I or a pharmaceutically acceptable salt thereof or a tautomer thereof for use in the treatment or prevention in a subject of a disease, disorder or symptom thereof delineated herein.
  • Microsomal Assay Human liver microsomes (20 mg/mL) are obtained from Xenotech, LLC (Lenexa, KS). ⁇ -nicotinamide adenine dinucleotide phosphate, reduced form (NADPH), magnesium chloride (MgCl 2 ), and dimethyl sulfoxide (DMSO) are purchased from Sigma-Aldrich.
  • 7.5 mM stock solutions of test compounds are prepared in DMSO.
  • the 7.5 mM stock solutions are diluted to 12.5-50 ⁇ in acetonitrile (ACN).
  • ACN acetonitrile
  • the 20 mg/mL human liver microsomes are diluted to 0.625 mg/mL in 0.1 M potassium phosphate buffer, pH 7.4, containing 3 mM MgCl 2 .
  • the diluted microsomes are added to wells of a 96-well deep-well polypropylene plate in triplicate.
  • a 10 aliquot of the 12.5-50 ⁇ test compound is added to the microsomes and the mixture is pre-warmed for 10 minutes. Reactions are initiated by addition of pre-warmed NADPH solution.
  • the final reaction volume is 0.5 mL and contains 0.5 mg/mL human liver microsomes, 0.25-1.0 ⁇ test compound, and 2 mM NADPH in 0.1 M potassium phosphate buffer, pH 7.4, and 3 mM MgCl 2 .
  • the reaction mixtures are incubated at 37 °C, and 50 ⁇ _, aliquots are removed at 0, 5, 10, 20, and 30 minutes and added to shallow-well 96-well plates which contain 50 ⁇ ⁇ of ice-cold ACN with internal standard to stop the reactions.
  • the plates are stored at 4 °C for 20 minutes after which 100 of water is added to the wells of the plate before centrifugation to pellet precipitated proteins.

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Abstract

Nouveaux dérivés de [5,6]-dihydro-2h-pyran-2-one, tautomères de ces dérivés et sels pharmaceutiques ou tautomères de ces composés. L'invention concerne également des compositions comprenant un composé comme susmentionné et l'utilisation de telles compositions pour le traitement de maladies et d'états pathologiques qui sont traités avec profit par l'administration d'un inhibiteur de l'ARN polymérase du virus de l'hépatite C. Formule (I).
PCT/US2011/040731 2010-06-17 2011-06-16 Dérivés de [5,6]-dihydro-2h-pyran-2-one Ceased WO2011159920A1 (fr)

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CN104045611A (zh) * 2014-04-04 2014-09-17 苏州景泓生物技术有限公司 一种制备核苷聚合酶抑制剂psi-7977中间体的方法

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US20070191432A1 (en) * 2005-07-29 2007-08-16 Concert Pharmaceuticals Inc. Novel benzo[D][1,3]-dioxol derivatives

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US20040224960A1 (en) * 2003-02-21 2004-11-11 Agouron Pharmaceuticals, Inc. Pharmaceutical compositions and methods for their use
US20050176701A1 (en) * 2003-02-21 2005-08-11 Agouron Pharmaceuticals, Inc. Inhibitors of hepatitis C virus RNA-dependent RNA polymerase, and compositions and treatments using the same
US20070191432A1 (en) * 2005-07-29 2007-08-16 Concert Pharmaceuticals Inc. Novel benzo[D][1,3]-dioxol derivatives

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CN104045611A (zh) * 2014-04-04 2014-09-17 苏州景泓生物技术有限公司 一种制备核苷聚合酶抑制剂psi-7977中间体的方法

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