WO2018021508A1 - ピラゾール-アミド化合物の製造方法 - Google Patents
ピラゾール-アミド化合物の製造方法 Download PDFInfo
- Publication number
- WO2018021508A1 WO2018021508A1 PCT/JP2017/027358 JP2017027358W WO2018021508A1 WO 2018021508 A1 WO2018021508 A1 WO 2018021508A1 JP 2017027358 W JP2017027358 W JP 2017027358W WO 2018021508 A1 WO2018021508 A1 WO 2018021508A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- compound
- compound represented
- acid
- reaction
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- 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
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/415—1,2-Diazoles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/04—Anorexiants; Antiobesity agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/06—Antihyperlipidemics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0231—Halogen-containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
- B01J31/0244—Nitrogen containing compounds with nitrogen contained as ring member in aromatic compounds or moieties, e.g. pyridine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B53/00—Asymmetric syntheses
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B61/00—Other general methods
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
- C07C43/23—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing hydroxy or O-metal groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/64—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of functional groups containing oxygen only in singly bound form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/82—Metals of the platinum group
- B01J2531/824—Palladium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/06—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members
- C07C2603/10—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings
- C07C2603/12—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings only one five-membered ring
- C07C2603/18—Fluorenes; Hydrogenated fluorenes
Definitions
- the present invention relates to a novel method for producing a pyrazole-amide compound or a salt thereof, or a hydrate thereof useful as an inhibitor of pyruvate dehydrogenase kinase (hereinafter abbreviated as PDHK), and an intermediate thereof.
- PDHK pyruvate dehydrogenase kinase
- the present invention relates to diseases associated with impaired glucose utilization (e.g., diabetes (type 1 diabetes, type 2 diabetes, etc.), insulin resistance syndrome, metabolic syndrome, hyperglycemia, hyperlactic acidemia, diabetic complications (diabetic neuron) Disorders, diabetic retinopathy, diabetic nephropathy, cataracts, etc.), diseases in which energy substrate supply to tissues is restricted (eg, heart failure (acute heart failure, chronic heart failure), cardiomyopathy, myocardial ischemia, myocardial infarction Angina, dyslipidemia, atherosclerosis, peripheral arterial disease, intermittent claudication, chronic obstructive pulmonary disease, cerebral ischemia, stroke), mitochondrial disease, mitochondrial encephalomyopathy, cancer, pulmonary hypertension etc.
- diseases associated with impaired glucose utilization e.g., diabetes (type 1 diabetes, type 2 diabetes, etc.), insulin resistance syndrome, metabolic syndrome, hyperglycemia, hyperlactic acidemia, diabetic complications (diabetic neuron) Disorders, diabetic reti
- the manufacturing method including the process converted into the compound represented by these.
- the metal catalyst is a palladium catalyst.
- the base is an alkali metal carbonate or an alkali metal acetate.
- the carboxylic acid is pivalic acid, isobutyric acid, propionic acid or benzoic acid.
- the reaction temperature of the coupling reaction is 80 to 150 ° C.
- the compound of the formula [VIII] is reacted with (trifluoromethyl) trimethylsilane in the presence of an asymmetric organic catalyst, and then acid-treated to give a compound of the formula [II]:
- PDHK inhibitory action diseases related to glucose utilization disorders, diseases in which energy substrate supply to tissues is restricted, mitochondrial diseases, mitochondrial encephalomyopathy, cancer, pulmonary hypertension, etc.
- a pyrazole-amide compound useful for the treatment or prevention of can be produced in a high yield by a simple operation through a compound that is easy to handle.
- this method can provide a novel intermediate for synthesizing the pyrazole-amide compound.
- the “metal catalyst” used in the coupling reaction may be a transition metal catalyst that can be used in the coupling reaction (cross-coupling reaction), and examples thereof include a palladium catalyst.
- a transition metal catalyst that can be used in the coupling reaction (cross-coupling reaction)
- examples thereof include a palladium catalyst.
- the “base” used in the coupling reaction may be any base as long as it does not interfere with the progress of the coupling reaction, and examples thereof include alkali metal carbonates and alkali metal acetates. Of these, potassium carbonate is preferred.
- the “carboxylic acid” used in the coupling reaction may be any carboxylic acid that does not hinder the progress of the coupling reaction, and examples thereof include pivalic acid, isobutyric acid, propionic acid, benzoic acid and the like. Among these, pivalic acid or isobutyric acid is preferable, and pivalic acid is more preferable.
- the “condensation agent” used in the reaction of the compound of the formula [V] or a salt thereof and ammonia may be any condensing agent generally used in amidation reaction of carboxylic acid and amine.
- any condensing agent generally used in amidation reaction of carboxylic acid and amine for example, 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride, dicyclohexylcarbodiimide (DCC), O- (benzotriazol-1-yl) -N, N, N ′, N′-tetramethyluro Ni tetrafluoroborate salt (TBTU), 2- (1H-7-azabenzotriazol-1-yl) -1,1,3,3-tetramethyluronium hexafluorophosphate salt (HATU), 1,1 Among them, 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride, which is a water-
- the condensing agent includes 1-hydroxybenzotriazole (HOBt) monohydrate, N-hydroxysuccinimide (HOSu), 6-chloro-1-hydroxybenzotriazole (Cl-HOBt), 1-hydroxy-7- Conventional additives such as azabenzotriazole (HOAt) or 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine (preferably 1-hydroxybenzotriazole monohydrate) More preferably it is used together.
- HOAt 1-hydroxybenzotriazole
- HASu N-hydroxysuccinimide
- Cl-HOBt 6-chloro-1-hydroxybenzotriazole
- 1-hydroxy-7- Conventional additives such as azabenzotriazole (HOAt) or 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine (preferably 1-hydroxybenzotriazole monohydrate) More preferably it is used together.
- Ammonia can be (1) aqueous ammonia or (2) ammonia generated from ammonium chloride and trialkylamine (eg, triethylamine, diisopropylethylamine, etc.).
- Asymmetric organic catalyst means an organic compound that serves as a catalyst for an asymmetric reaction.
- Examples of the asymmetric organic catalyst that can be used for the conversion reaction of the compound of formula [VIII] to the compound of formula [II] include cinchonidinium salts and the like, and preferably N- (4-tert-butyl -3-methoxybenzyl) cinchonidium bromide.
- the “pharmaceutically acceptable salt” of the compound may be any salt as long as it forms a salt of the formula [I] with no excessive toxicity known in the art.
- a salt with an inorganic acid, a salt with an organic acid, a salt with an amino acid, and the like can be mentioned.
- Each of them can be obtained by reacting a compound of formula [I] with an inorganic acid, an organic acid, or an amino acid according to a method known per se.
- salts with inorganic acids include salts with hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, hydrobromic acid and the like.
- organic acids oxalic acid, maleic acid, citric acid, fumaric acid, lactic acid, malic acid, succinic acid, tartaric acid, acetic acid, trifluoroacetic acid, gluconic acid, ascorbic acid, methanesulfonic acid, benzenesulfonic acid, p -Salts with toluenesulfonic acid etc.
- salts with amino acids include salts with aspartic acid, glutamic acid and the like.
- the pharmaceutically acceptable salt of the compound of the present invention is preferably a salt with an inorganic acid.
- the “salt” of the compound may be any salt formed with the compound according to the present invention, such as a salt with an inorganic acid, a salt with an organic acid, a salt with an inorganic base, a salt with an organic base, Examples include salts with amino acids.
- a salt with an inorganic acid such as a salt with an organic acid, a salt with an inorganic base, a salt with an organic base, Examples include salts with amino acids.
- the above-mentioned “pharmaceutically acceptable salt” can be mentioned.
- salts with inorganic bases include salts with ammonium, aluminum, barium, bismuth, calcium, lithium, magnesium, potassium, sodium, zinc, and the like.
- salts with organic base examples include salts with arecoline, clemizole, ethylenediamine, N-methylglucamine, N-benzylphenethylamine, tris (hydroxymethyl) methylamine and the like.
- salts with amino acids examples include salts with arginine, lysine and the like.
- Each can be obtained by reacting the compound according to the present invention with an inorganic base, organic base, inorganic acid, organic acid or amino acid according to a method known per se.
- solvate is a compound in which a molecule of a solvent is coordinated to a compound according to the present invention, a salt thereof, or a pharmaceutically acceptable salt thereof, and includes a hydrate.
- the solvate is preferably a pharmaceutically acceptable solvate.
- the compound according to the present invention, a salt thereof or a hydrate of a pharmaceutically acceptable salt thereof, a methanol solvate, an ethanol solvate, a dimethyl sulfoxide solvate and the like can be mentioned.
- Methanol solvate is a compound in which methanol molecules are coordinated to the compound of the present invention. Examples include 0.5 methanol solvate.
- the compound of the formula [I] or a pharmaceutically acceptable salt thereof or a hydrate thereof is preferably a substantially purified compound of the formula [I] or a hydrate thereof.
- it is a compound of the formula [I] or a hydrate thereof purified to a purity of 80% or more. More preferably, it is a compound of the formula [I] or a hydrate thereof purified to a purity of 90% or more.
- the compound of the present invention or a pharmaceutically acceptable salt thereof, or a hydrate thereof may be crystalline, amorphous (amorphous), or a mixture thereof.
- the pharmaceutical composition of the present invention comprises at least one pharmaceutically acceptable compound of the formula [I] or a pharmaceutically acceptable salt thereof, or a hydrate salt thereof according to a method known in the technical field of pharmaceutical preparations. It may be produced by mixing an appropriate amount with a carrier to be used.
- the content of the compound of formula [I] or a pharmaceutically acceptable salt thereof or a hydrate salt thereof in the pharmaceutical composition of the present invention varies depending on the dosage form, dosage, etc. 0.1 to 100% by weight.
- the compound of the formula [I] or a pharmaceutically acceptable salt thereof or a hydrate form thereof is an oral preparation such as a tablet, capsule, granule, powder, troche, syrup, emulsion, suspension, etc.
- parenteral agents such as external preparations, suppositories, injections, eye drops, nasal agents, and pulmonary agents can be mentioned.
- reaction temperature means the temperature in the reaction solution
- internal temperature means the temperature of the reaction solution, suspension, etc.
- exitternal temperature means the temperature in the oil bath, water bath, and dryer.
- “About” is defined as ⁇ 5 ° C for temperature, ⁇ 10 minutes for time, and ⁇ 10% for weight and volume.
- post-reaction treatment may be performed by a commonly performed method
- purification of the product may be performed by a conventional method such as distillation, crystallization, recrystallization, column chromatography, preparative HPLC, slurry washing, etc. It can be done by selecting or combining. Further, it is possible to proceed to the next step without isolation / purification.
- a compound of formula [VIII] is obtained by reacting a compound of formula [VI] with a compound of formula [VII]. This reaction is carried out in the presence of a base in a solvent that does not adversely influence the reaction.
- Solvents include hydrocarbons such as hexane and toluene, ethers such as 1,4-dioxane, tetrahydrofuran and 1,2-dimethoxyethane, sulfoxides such as dimethyl sulfoxide, N, N-dimethylacetamide, N-methyl- Examples include amides such as 2-pyrrolidone, water, or a mixture thereof. Of these, toluene / water / tetrahydrofuran is preferable.
- Examples of the base include tripotassium phosphate, cesium carbonate, potassium tert-butoxide, sodium hydroxide and the like, and sodium hydroxide is preferable.
- the amount of the base to be used is 2 to 20 mol, preferably 10 to 20 mol, more preferably 19 to 20 mol, per 1 mol of the compound of the formula [VI].
- This reaction is preferably performed in the presence of a phase transfer catalyst.
- the phase transfer catalyst include tetra n-butylammonium hydroxide, tetra n-butylammonium hydrogen sulfate, and tetra n-butylammonium fluoride, among which tetra n-butylammonium hydroxide is preferable.
- the amount of the phase transfer catalyst to be used is 0.1 to 1.5 mol, preferably 0.4 to 0.8 mol, more preferably 0.6 to 0.8 mol, per 1 mol of the compound of the formula [VI].
- the amount of the compound of the formula [VII] used is 1 to 4 mol, preferably 2 to 3 mol, per 1 mol of the compound of the formula [VI].
- the reaction temperature and reaction time are about 15 ° C. to about 50 ° C. and about 1 hour to about 24 hours, respectively.
- the preferred reaction temperature is room temperature and the preferred reaction time is from about 4 hours to about 10 hours.
- step 1 in the presence of an asymmetric organic catalyst, the compound of formula [VIII] is reacted with (trifluoromethyl) trimethylsilane in step 1, and the trimethylsilyl form of the compound represented by formula [II] obtained in step 1 is obtained.
- Operation 2 for removing the trimethylsilyl group by acid treatment, and operation 3 for obtaining a solvate crystal of the compound of the formula [II] by crystallization of the compound obtained in operation 2 are included. Details of operations 1 to 3 will be described below.
- Operation 1 is performed in the presence of an asymmetric organic catalyst in a solvent that does not adversely influence the reaction.
- an asymmetric organic catalyst for example, a cinchonidium salt is mentioned.
- the cinchonidium salt include N- (4-tert-butyl-3-methoxybenzyl) cinchonidium fluoride, N- (4-tert-butyl-3-methoxybenzyl) cinchonidium bromide, N- (4 -tert-butyl-3-methoxybenzyl) cinchonidium p-methoxyphenoxide and the like.
- N- (4-tert-butyl-3-methoxybenzyl) cinchonidium bromide is preferred as the cinchonidium salt.
- the amount of the asymmetric organic catalyst to be used is 0.005 to 0.3 mol, preferably 0.01 to 0.1 mol, particularly preferably 0.05 mol, per 1 mol of the compound of the formula [VIII].
- an asymmetric organic catalyst is used with an additive as needed. Examples of the additive include sodium phenolate and sodium tert-butyl alcoholate. Of these, an equimolar amount of sodium phenolate is preferred as an additive.
- the solvent examples include aromatic hydrocarbons such as toluene and xylene, ethers such as tetrahydrofuran, diethyl ether, 1,4-dioxane and 1,2-dimethoxyethane. Among these, a mixed solvent of toluene and tetrahydrofuran is preferable.
- the reaction temperature is about -78 ° C to about 0 ° C, preferably about -55 ° C to about -45 ° C.
- the reaction time is about 2 hours to about 8 hours, preferably about 5 hours.
- Operation 2 is performed in the presence of an acid in a solvent that does not adversely influence the reaction, and a solution containing the compound of the formula [II] is obtained.
- the solvent include alcohols such as methanol, ethanol and 2-propanol. Of these, methanol is preferable.
- an acid For example, trifluoroacetic acid, hydrochloric acid, etc. are mentioned, Preferably it is hydrochloric acid.
- the amount of the acid to be used is 0.2 to 5.0 mol, preferably 0.3 to 2.0 mol, per 1 mol of the compound of the formula [VIII].
- the reaction temperature is preferably room temperature.
- the reaction time is about 1 hour to about 6 hours, preferably about 3 hours.
- the crystallization in operation 3 is carried out in a water-containing solvent, and the compound of the formula [II] is obtained as a solvate (alcohol solvate (preferably methanol solvate)).
- the solvent include alcohols such as methanol, ethanol and 2-propanol. Methanol is preferred.
- the “methanol solvate of the compound of the formula [II]” may be a mixture of the compound of the formula [II] and the methanol solvate of the compound of the formula [II] depending on drying conditions and the like.
- step 6 a solvent is added to the solvate of the compound of formula [II] obtained in step 5, and the suspension is stirred while warming. Then, the solvent is distilled off under reduced pressure, and the suspension is resuspended in the solvent. After stirring, filtering, washing, and drying, crystals of the compound of the formula [II] are obtained.
- the solvent used for preparing the suspension of the solvate of the compound of the formula [II] include aliphatic hydrocarbons such as hexane, heptane and octane, and / or benzene, toluene and xylene. Aromatic hydrocarbons can be mentioned, and among them, heptane is preferable.
- the stirring temperature is about 60 ° C. from the internal temperature to the boiling point of the solvent, preferably 85 ° C. or higher.
- the stirring time is about 1 hour to about 6 hours, preferably about 3 hours to about 5 hours.
- a compound of the formula [IV] is obtained by a coupling reaction of the compound of the formula [II] or its methanol solvate with the compound of the formula [III] in the presence of a metal catalyst.
- the compound of the formula [II] is preferred to the methanol solvate of the compound of the formula [II]. This reaction is carried out in the presence of a carboxylic acid and a base in a solvent that does not adversely influence the reaction.
- the solvent examples include ethers such as tetrahydrofuran and 1,4-dioxane, nitriles such as acetonitrile, amides such as N, N-dimethylformamide, N-methylpyrrolidone and N, N-dimethylacetamide, or benzene, Examples thereof include hydrocarbons such as toluene. Among them, N, N-dimethylacetamide is preferable.
- the metal catalyst examples include a palladium catalyst, among which bis (triphenylphosphine) palladium (II) dichloride, [1,1′-bis (diphenylphosphino) ferrocene] palladium (II) dichloride, dichloromethane adduct. Palladium acetate and di (1-adamantyl) -n-butylphosphine, palladium acetate and dicyclohexyl (2,2-diphenyl-1-methylcyclopropyl) phosphine, and the like are preferable. Of these, bis (triphenylphosphine) palladium (II) dichloride is more preferred as the metal catalyst.
- a palladium catalyst among which bis (triphenylphosphine) palladium (II) dichloride, [1,1′-bis (diphenylphosphino) ferrocene] palladium (II) dichloride, dichloromethane a
- Examples of the carboxylic acid include pivalic acid, isobutyric acid, propionic acid, benzoic acid, and the like, and preferably pivalic acid or isobutyric acid, and more preferably pivalic acid.
- Examples of the base include alkali metal carbonates and alkali metal acetates, and potassium carbonate is preferable.
- the amount of the compound of the formula [III] to be used is 1.0 to 5.0 mol, preferably 1.6 to 2.0 mol, per 1 mol of the compound of the formula [II].
- the amount of the metal catalyst to be used is 0.005 to 0.2 mol, preferably 0.01 to 0.025 mol, per 1 mol of the compound of the formula [II].
- the amount of carboxylic acid to be used is 0.1 to 1.0 mol, preferably 0.2 to 0.5 mol, per 1 mol of the compound of the formula [II].
- the amount of the base used is 0.4 to 4.0 mol, preferably 0.6 to 1.8 mol, relative to 1 mol of the compound of the formula [II].
- the reaction temperature is about 80 ° C. to about 150 ° C., preferably about 90 ° C. to about 140 ° C., more preferably about 100 ° C. to about 110 ° C.
- the reaction time is about 1 hour to about 6 hours, preferably about 3 hours.
- Hydrolysis of the compound of formula [IV] yields a compound of formula [V].
- This reaction is carried out in the presence of a base in a solvent that does not adversely influence the reaction.
- the solvent include alcohols such as methanol, ethanol and 2-propanol, water and the like, and mixtures thereof, among which a mixed solvent of ethanol and water is preferable.
- the base include inorganic bases such as sodium hydroxide and potassium hydroxide, among which sodium hydroxide is preferable.
- the amount of the base to be used is 7 to 16 mol, preferably 10 to 13 mol, per 1 mol of the compound of the formula [IV].
- the reaction temperature is about 25 ° C. from the internal temperature to the boiling point of the solvent, preferably about 70 ° C.
- the reaction time is about 1 hour to about 8 hours, preferably about 1.5 hours.
- a compound of the formula [Ih] is obtained by performing an operation 1 in which the compound of the formula [V] is reacted with ammonia in the presence of a condensing agent, followed by an operation 2 of crystallization with a hydrous solvent.
- the reaction of operation 1 is performed in the presence of a condensing agent in a solvent that does not adversely influence the reaction.
- a condensing agent examples include 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride, dicyclohexylcarbodiimide (DCC), O- (benzotriazol-1-yl) -N, N, N ′, N ′.
- TBTU -Tetramethyluronium tetrafluoroborate
- HATU 2- (1H-7-azabenzotriazol-1-yl) -1,1,3,3-tetramethyluronium hexafluorophosphate
- 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride is preferable.
- 1-hydroxybenzotriazole (HOBt) monohydrate N-hydroxysuccinimide (HOSu), 6-chloro-1-hydroxybenzotriazole (Cl-HOBt), 1- Hydroxy-7-azabenzotriazole (HOAt) or 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine, and the like are preferable, but preferably 1-hydroxybenzotriazole / 1 water It can also be used in combination with Among these, a combination of 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride and 1-hydroxybenzotriazole monohydrate is particularly preferably used.
- the amount of the condensing agent to be used is 1 to 10 mol, preferably 1 to 2 mol, per 1 mol of the compound of the formula [V].
- the amount of the additive to be used is 1 to 10 mol, preferably 1 to 2 mol, relative to 1 mol of the compound of the formula [V].
- the amount of ammonia used is 1 to 3 mol, preferably 1 to 2 mol in terms of the amount of ammonia with respect to 1 mol of the compound of the formula [V].
- ammonium chloride and a base for example, trialkylamine, specifically, triethylamine, diisopropylethylamine, etc.
- a base for example, trialkylamine, specifically, triethylamine, diisopropylethylamine, etc.
- the solvent examples include ethers such as diethyl ether, 1,4-dioxane and tetrahydrofuran, esters such as ethyl acetate, halogenated hydrocarbons such as chloroform and dichloromethane, amides such as N, N-dimethylformamide, Or a mixture thereof can be exemplified, and may be appropriately mixed. Of these, N, N-dimethylformamide is preferred. While the reaction temperature varies depending on the type of solvent, it is about 0 ° C. to about 40 ° C., preferably about 15 ° C. to about 30 ° C., and the reaction time is about 0.5 hour to about 24 hours, preferably about 1.5 hours to about 8 hours. It's time.
- ethers such as diethyl ether, 1,4-dioxane and tetrahydrofuran
- esters such as ethyl acetate
- halogenated hydrocarbons such as chloroform and dichlor
- an azeotropic operation in which an alcohol (eg, ethanol) is added as a solvent to the solution of the compound of the formula [I] obtained in Operation 1 and a part of the solvent is distilled off under reduced pressure is repeated. Further, after adding alcohols to make a solution, the temperature was raised from about 40 ° C. to about 50 ° C., water was added dropwise at the same temperature, and after stirring, the suspension was heated from about 55 ° C. to about 65 ° C. The temperature is raised, and after stirring, the temperature is slowly returned to room temperature, and the resulting mixture is further stirred to precipitate the compound of the formula [Ih] as crystals.
- an alcohol eg, ethanol
- the stirring time is about 1 hour to about 7 hours, preferably about 2 hours at an internal temperature of about 40 ° C. to about 50 ° C., and about 1 hour to about 4 at an internal temperature of about 55 ° C. to about 65 ° C.
- the time is preferably from about 1 hour to about 2 hours and at room temperature from about 8 hours to 24 hours, preferably about 12 hours.
- the crystallization operation may be carried out by adding seed crystals of the compound of the formula [Ih] after dropping of water.
- a compound of formula [III] is obtained by reacting a compound of formula [IX] with a compound of formula [X]. This reaction is carried out in the presence of a base in a solvent that does not adversely influence the reaction.
- a solvent such as tetrahydrofuran, 1,4-dioxane, 1,2-dimethoxyethane, hydrocarbons such as hexane and toluene, amides such as N, N-dimethylformamide, N, N-dimethylacetamide, Or a mixture thereof is exemplified. Of these, tetrahydrofuran is preferred.
- Examples of the base include sodium hydride, potassium tert-butoxide, sodium methoxide, sodium bis (trimethylsilyl) amide, cesium carbonate and the like, preferably sodium hydride.
- the amount of the base to be used is 1 to 2 mol, preferably 1 to 1.5 mol, per 1 mol of the compound of the formula [IX].
- the amount of the compound of the formula [X] to be used is 1 to 1.5 mol, preferably 1 to 1.2 mol, per 1 mol of the compound of the formula [IX].
- the reaction temperature is from room temperature to the boiling point of the solvent, preferably from about 50 ° C to about 65 ° C.
- the reaction time is about 1 hour to about 24 hours.
- the characteristics of this production method include the following. 1. About compound (2) or compound (2m)
- Compound (2) can be converted into a methanol solvate (compound (2m)) with good crystallinity, which can be converted to a good chemical purity and good optical purity (for example, 95% ee or more) by a single operation. ).
- Compound (3) could be purified to a purity of 90% or more (99% or more depending on the distillation conditions) by distillation.
- a protective group is introduced into a functional group as necessary, and deprotection is performed in a post-process; the functional group is treated as a precursor in each step, and a desired step is performed at an appropriate stage. Conversion to a functional group; efficient production may be carried out by changing the order of each production method and process.
- post-reaction treatment may be performed by a commonly performed method, and isolation and purification may be performed as necessary by crystallization, recrystallization, distillation, liquid separation, silica gel chromatography, preparative HPLC, etc. These conventional methods may be appropriately selected and combined. All reagents and solvents were of commercial quality and were used without purification.
- % Indicates mol / mol% for the yield and indicates% by weight unless otherwise specified.
- the room temperature means a temperature of 15 to 30 ° C. unless otherwise specified.
- Other abbreviations used in the text have the following meanings. s: singlet d: doublet t: triplet q: quartet m: multiplet br: broad dd: double doublet ddd: double double doublet dddd: double double doublet J: coupling constant MeOH: methanol DMSO-D 6 : heavy dimethyl sulfoxide 1 H-NMR: proton nuclear magnetic resonance HPLC: high-performance liquid chromatography The 1 H-NMR spectrum was measured in DMSO-D 6 using tetramethylsilane as an internal standard, and all ⁇ values were expressed in ppm.
- HPLC analysis conditions In the following analysis conditions, “%” indicates volume%. Further, the gradient linearly changes the mixing ratio of the liquid A and the liquid B.
- Analysis condition 1 Measuring instrument: HPLC system Waters Alliance Column: Waters SunFire C18 3.5 ⁇ m 4.6mm ⁇ ⁇ 150mm Column temperature: 40 ° C Mobile phase: (A solution) Phosphate buffer (pH 2.0), (B solution) Acetonitrile gradient profile: Time (min) 0 30 35 40 45 (Stop) A (%) 70 25 25 70 70 B (%) 30 75 75 30 30 30 Analysis time: 45 minutes Flow rate: 1.0 mL / min Detection: UV (220 nm)
- the resulting suspension was heated to an internal temperature of 41 ° C., and the remaining amount (about 35%) of a bromine (40.8 g) / acetic acid (90 mL) solution was added dropwise at an internal temperature of 41 to 45 ° C. After washing with (10 mL), the mixture was stirred at an internal temperature of 45 to 46 ° C. for 17 minutes.
- a sodium sulfite (4.39 g) / water (45 mL) solution was added dropwise at an internal temperature of 41 to 45 ° C., and the dropping funnel was washed with water (5 mL), and then at an internal temperature of 41 to 46 ° C., 30 Stir for minutes.
- reaction mixture was cooled to room temperature, a sodium sulfite (8.57 g) / water (62.5 mL) solution was added dropwise at an internal temperature of 23 to 24 ° C., and the dropping funnel was washed with water (13 mL). Stir for 30 minutes. Toluene (375 mL) was added to the obtained mixture, and the mixture was stirred for 30 minutes. The insoluble material was filtered through Celite, and the filtrate was washed with toluene (75 mL).
- the obtained filtrate was separated, the aqueous layer was removed, and the organic layer was washed successively with water (125 mL ⁇ 2 times), 5% aqueous sodium hydrogen carbonate solution (125 mL), and 1% brine (125 mL).
- the obtained organic layer was concentrated under reduced pressure, and toluene (about 375 mL) was distilled off. To the residue was added 2-propanol (250 mL) and concentrated under reduced pressure until the weight was about 90 g. The same operation was further performed twice, and then 2-propanol (150 mL) was added to adjust the weight to 207 g.
- the obtained suspension was heated to reflux for 30 minutes and then stirred at an external temperature of 75 ° C.
- the resulting mixture was stirred at an internal temperature of ⁇ 52 to ⁇ 48 ° C. for 30 minutes, heated to about 0 ° C. over 1 hour, and then cooled again to an internal temperature of ⁇ 53 ° C.
- (trifluoromethyl) trimethylsilane (19.2 g) was added dropwise over 2 hours at an internal temperature of ⁇ 53 to ⁇ 47 ° C., followed by stirring at an internal temperature of about ⁇ 50 ° C. for 10 minutes.
- the resulting reaction mixture was warmed to room temperature, concentrated under reduced pressure until the weight was 81.5 g or less, and methanol (130 mL) was added.
- the obtained suspension was stirred at an internal temperature of about 45 ° C. for 2 hours, cooled to room temperature, and stirred overnight.
- the precipitated solid was collected by filtration, and the filtrate was washed with a methanol / water (1.3 v / 0.7 v) mixed solution (65 mL) cooled to 10 ° C. or lower.
- the obtained solid was dried under reduced pressure to obtain the title compound (23.9 g).
- thermogravimetric analysis The weight loss by thermogravimetric analysis agreed well with the theoretical value of compound (2m) (0.5 methanol solvate of compound (2)). Theoretical value: 3.58% (calculated value as 0.5 methanol solvate) Actual value: 3.56%
- N-Heptane (25 mL) was added to the resulting suspension at an internal temperature of about 70 ° C., and about 25 mL of solvent was distilled off again under reduced pressure while maintaining the internal temperature at about 70 ° C.
- 25 mL of n-heptane was added at an internal temperature of about 70 ° C., and the mixture was cooled to room temperature and stirred for about 2 hours.
- the solid was filtered and the filtrate was washed with n-heptane.
- the obtained solid was dried under reduced pressure at an external temperature of 60 ° C. to obtain the title compound (22.2 g, optical purity 99.1% ee).
- the optical purity was determined under HPLC analysis condition 3.
- N, N-dimethylacetamide (420 mL), pivalic acid (3.55 g) and potassium carbonate (15.4 g) were added to bis (triphenylphosphine) palladium (II) dichloride (2.44 g).
- (9R) -4-bromo-2- (3-hydroxy-3-methylbutyloxy) -9- (trifluoromethyl) -9H-fluoren-9-ol (compound (2)) (60.0 g), tert-butyl 2-methyl-2- (1H-pyrazol-1-yl) propanoate (compound (3)) (46.8 g) and N, N-dimethylacetamide (60 mL) were added.
- the resulting mixture was stirred at 104 to 107 ° C. for 3 hours, and then the reaction mixture was concentrated under reduced pressure to distill off about 440 mL of N, N-dimethylacetamide.
- the obtained concentrate containing the title compound was used in the next step with a yield of 100%.
- the aqueous layer obtained by the previous liquid separation was added dropwise to the obtained mixture at an internal temperature of -7 to 14 ° C., followed by liquid separation to remove the aqueous layer.
- the obtained organic layer was washed four times with water (300 mL), concentrated under reduced pressure until the weight became 135 g, then ethyl acetate (300 mL) was added, and the mixture was concentrated again under reduced pressure until the liquid volume became 138 g. Ethyl acetate (420 mL) and activated carbon (3.00 g) were added to the resulting concentrated solution. The resulting mixture was stirred at an internal temperature of 23 to 26 ° C.
- Step 9 2- ⁇ 4-[(9R) -9-hydroxy-2- (3-hydroxy-3-methylbutyloxy) -9- (trifluoromethyl) -9H-fluoren-4-yl] -1H-pyrazole-1 -Il ⁇ -2-methylpropanamide monohydrate (compound (1h))
- the obtained organic layer was washed by adding ethyl acetate (116 mL) and 5% aqueous sodium hydrogen carbonate solution (290 mL). Subsequently, this organic layer was washed successively with water (116 mL), 1M hydrochloric acid (290 mL), 5% brine (290 mL) and water (290 mL), and the obtained organic layer was concentrated under reduced pressure until the weight reached 121 g. . Ethanol (174 mL) was added to the obtained concentrate, and the mixture was concentrated under reduced pressure until the weight became 109 g. Ethanol (174 mL) was added, and the mixture was concentrated again under reduced pressure until the weight became 112 g.
- Ethanol (93 mL) was added to the obtained concentrated liquid to adjust the liquid volume to 200 mL.
- the resulting solution was subjected to dust removal filtration, and the filtrate was washed with ethanol (116 mL).
- the obtained filtrate was heated, water (348 mL) was added dropwise at an internal temperature of 46 to 50 ° C., seed crystals (12 mg) were added, and the mixture was stirred at an internal temperature of 46 to 51 ° C. for 2 hours.
- the resulting suspension was further stirred for 1 hour and 10 minutes at an internal temperature of 55 to 62 ° C., then cooled to 30 ° C. over about 4 hours, and stirred overnight at room temperature.
- step 9 Using the method according to the present step 9, even when no seed crystal was added during crystallization, crystals of the target compound (1h) were obtained.
- tetrahydrofuran (1250 mL) and 60% sodium hydride (58.5 g) were added, and the internal temperature was cooled to -9 ° C.
- a pyrazole (compound (9)) (100 g) / tetrahydrofuran (250 mL) solution was added dropwise at an internal temperature of ⁇ 9 to 5 ° C., followed by stirring at ⁇ 5 to 0 ° C. for 30 minutes.
- the present invention can provide a method for producing a compound of formula [I] or a pharmaceutically acceptable salt thereof, or a hydrate thereof in good yield.
- the compounds of the formula [II], the formula [IIm], the formula [III] and the formula [IV] according to the present invention are represented by the compound of the formula [I] or a pharmaceutically acceptable salt thereof, or a hydrate thereof.
- the production method of the present invention is useful as an industrial mass synthesis method because it can be carried out by a simple operation via a compound that is easy to handle.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Diabetes (AREA)
- Hematology (AREA)
- Obesity (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Materials Engineering (AREA)
- Endocrinology (AREA)
- Vascular Medicine (AREA)
- Emergency Medicine (AREA)
- Urology & Nephrology (AREA)
- Child & Adolescent Psychology (AREA)
- Epidemiology (AREA)
- Inorganic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Description
本発明の一態様は、下記[1]から[18a]に示す通りである。
[1] 式 [ I ] :
式 [ II ] :
式 [ III ] :
[2] 金属触媒が、パラジウム触媒である、上記[1]に記載の方法。
[3] 塩基が、アルカリ金属炭酸塩又はアルカリ金属酢酸塩である、上記[1]又は[2]に記載の方法。
[4] カルボン酸が、ピバル酸、イソ酪酸、プロピオン酸又は安息香酸である、上記[1]から[3]のいずれかに記載の方法。
[5] カップリング反応の反応温度が、80から150℃である、上記[1]から[4]のいずれかに記載の方法。
[6] 前記式 [ IV ] の化合物を加水分解することにより、式 [ V ] :
[7] 前記式 [ V ] の化合物又はその塩を、縮合剤存在下、アンモニアと反応させることにより、前記式 [ I ] で表される化合物又はその製薬上許容される塩、或いはその水和物に変換する工程を更に含む、上記[6]に記載の方法。
[8] 前記式 [ II ]の化合物が、式 [ VI ] :
式 [ VIII ] の化合物を、不斉有機触媒の存在下、(トリフルオロメチル)トリメチルシランと反応後、酸処理する工程
を含む方法により製造されることを特徴とする、上記[1]から[7]のいずれか記載の方法。
[9] 不斉有機触媒がシンコニジニウム塩である、上記[8]に記載の方法。
[10] シンコニジニウム塩がN-(4-tert-ブチル-3-メトキシベンジル)シンコニジウムブロミドである、上記[9]に記載の方法。
[10a] シンコニジニウム塩とともに添加剤を使用する、上記[9]に記載の方法。
[10b] 添加剤がナトリウムフェノラート、または、ナトリウムtert-ブチルアルコラートである、上記[10a]に記載の方法。
[11] 前記式[ III ]の化合物が、式 [ IX ] :
[12] 式 [ I ] :
式 [ VI ] :
式 [ VIII ] の化合物を、不斉有機触媒の存在下、(トリフルオロメチル)トリメチルシランと反応後、酸処理し、式 [ II ] :
式 [ IX ] :
前記式 [ III ] の化合物を、金属触媒、塩基およびカルボン酸存在下、前記式 [ II ] の化合物又はそのメタノール和物とのカップリング反応により、式 [ IV ] :
前記式 [ IV ] の化合物を加水分解することにより、式 [ V ] :
前記式 [ V ] の化合物又はその塩を、縮合剤存在下、アンモニアと反応させることによりアミド化する工程を含む、製造方法。
[13] 式 [ II ] :
[14] 上記[1]から[12]のいずれかに記載の方法で製造された化合物またはその製薬上許容される塩。
[14a] 上記[1]に記載の方法で製造された化合物またはその製薬上許容される塩、および製薬上許容される担体を含む、医薬組成物。
[15] 式 [ IV ] :
[16] 式 [ II ] :
[17] 式 [ II ] :
式 [ IIm ] :
[18] 式 [ III ] :
[18a] 式 [ XV ] :
カップリング反応に使用される「金属触媒」とは、カップリング反応(クロスカップリング反応)に使用し得る遷移金属触媒であればよく、例えば、パラジウム触媒等が挙げられる。中でも、ビス(トリフェニルホスフィン)パラジウム(II)ジクロリド、[1,1’-ビス(ジフェニルホスフィノ)フェロセン]パラジウム(II)ジクロリド ジクロロメタン付加物、酢酸パラジウムとジ(1-アダマンチル)-n-ブチルホスフィン、酢酸パラジウムとジシクロヘキシル(2,2-ジフェニル-1-メチルシクロプロピル)ホスフィン等が好ましい。
(a) Bergeら、J.Pharm.Sci., 66,p. 1-19(1977)
(b) Stahlら、”Handbook of Pharmaceutical Salt: Properties,Selection,and Use”(Wiley-VCH, Weinheim, Germany, 2002)
(c) Paulekuhnら、J. Med. Chem., 50, p. 6665-6672 (2007)
有機酸との塩として、シュウ酸、マレイン酸、クエン酸、フマル酸、乳酸、リンゴ酸、コハク酸、酒石酸、酢酸、トリフルオロ酢酸、グルコン酸、アスコルビン酸、メタンスルホン酸、ベンゼンスルホン酸、p-トルエンスルホン酸等との塩が例示される。
アミノ酸との塩として、アスパラギン酸、グルタミン酸等との塩が例示される。
本発明化合物の製薬上許容される塩として、好ましくは、無機酸との塩である。
アミノ酸との塩として、アルギニン、リジン等との塩が例示される。
としては、例えば、下記化合物
より好ましくは、90%以上の純度に精製された、式 [ I ] の化合物又はその水和物である。
各工程において、反応後の処理は通常行われる方法で行えばよく、生成物の精製は蒸留、結晶化、再結晶化、カラムクロマトグラフィー、分取HPLC、スラリー洗浄等の慣用される方法を適宜選択して行うか、組み合わせて行えばよい。また、単離・精製せず次の工程に進むこともできる。
本反応は、反応に悪影響を及ぼさない溶媒中で、塩基の存在下で行われる。
溶媒としては、ヘキサン、トルエン等の炭化水素類、1,4-ジオキサン、テトラヒドロフラン、1,2-ジメトキシエタン等のエーテル類、ジメチルスルホキシド等のスルホキシド類、N,N-ジメチルアセトアミド、N-メチル-2-ピロリドン等のアミド類、水、又はそれらの混合物が例示される。中でも、トルエン/水/テトラヒドロフランが好ましい。
塩基としては、例えば、リン酸三カリウム、炭酸セシウム、カリウムtert-ブトキシド、水酸化ナトリウム等が挙げられるが、好ましくは、水酸化ナトリウムである。
塩基の使用量は、式 [ VI ] の化合物1モルに対して、2から20モル、好ましくは10から20モルであり、より好ましくは19から20モルである。
本反応は、相間移動触媒の存在下で行うのが好ましい。
相間移動触媒としては、例えば、水酸化テトラn-ブチルアンモニウム、硫酸水素テトラn-ブチルアンモニウム、フッ化テトラn-ブチルアンモニウム等が挙げられるが、中でも、水酸化テトラn-ブチルアンモニウムが好ましい。相間移動触媒の使用量は、式 [ VI ]の化合物1モルに対して、0.1から1.5モル、好ましくは0.4から0.8モルであり、より好ましくは0.6から0.8モルである。
式 [ VII ] の化合物の使用量は、式 [ VI ] の化合物1モルに対して、1から4モル、好ましくは2から3モルである。
反応温度及び反応時間はそれぞれ、約15℃から約50℃、及び約1時間から約24時間である。好ましい反応温度は室温であり、好ましい反応時間は約4時間から約10時間である。
操作1から3の詳細を以下に説明する。
不斉有機触媒の使用量は、式 [ VIII ] の化合物1モルに対して、0.005から0.3モル、好ましくは0.01から0.1モル、特に好ましくは0.05モルである。
また、不斉有機触媒は、必要に応じて添加剤とともに用いる。該添加剤としては、例えばナトリウムフェノラート、ナトリウムtert-ブチルアルコラート等が挙げられる。中でも、等モル量のナトリウムフェノラートが、添加剤として好ましい。
溶媒としては、トルエン、キシレン等の芳香族炭化水素類、テトラヒドロフラン、ジエチルエーテル、1,4-ジオキサン、1,2-ジメトキシエタン等のエーテル類等が例示される。中でも、トルエンとテトラヒドロフランの混合溶媒が好ましい。
反応温度は、約-78℃から約0℃、好ましくは約-55℃から約-45℃である。
反応時間は、約2時間から約8時間、好ましくは約5時間である。
溶媒としては、メタノール、エタノール、2-プロパノール等のアルコール類が例示される。中でも、メタノールが好ましい。
酸としては、特に限定されないが、例えば、トリフルオロ酢酸、塩酸等が挙げられ、好ましくは、塩酸である。
酸の使用量は、式 [ VIII ] の化合物1モルに対して、0.2から5.0モル、好ましくは0.3から2.0モルである。
反応温度は、好ましくは室温である。
反応時間は、約1時間から約6時間、好ましくは約3時間である。
溶媒としては、メタノール、エタノール、2-プロパノール等のアルコール類が例示される。好ましくはメタノールである。
「式 [ II ] の化合物のメタノール和物」は、乾燥条件等により、式 [ II ] の化合物と式 [ II ] の化合物のメタノール和物の混合物の場合がある。
式 [ II ] の化合物の溶媒和物の懸濁液を調製するために使用する溶媒としては、例えば、ヘキサン、ヘプタン、オクタン等の脂肪族炭化水素類、及び/又はベンゼン、トルエン、キシレン等の芳香族炭化水素類が挙げられ、中でも、ヘプタンが好ましい。
攪拌温度は、内温約60℃から溶媒の沸点、好ましくは内温85℃以上である。
攪拌時間は、約1時間から約6時間、好ましくは約3時間から約5時間である。
本反応は、反応に悪影響を及ぼさない溶媒中で、カルボン酸及び塩基の存在下で行われる。
溶媒としては、例えば、テトラヒドロフラン、1,4-ジオキサン等のエーテル類、アセトニトリル等のニトリル類、N,N-ジメチルホルムアミド、N-メチルピロリドン、N,N-ジメチルアセトアミド等のアミド類、又はベンゼン、トルエン等の炭化水素類が挙げられ、中でも、N,N-ジメチルアセトアミドが好ましい。
金属触媒としては、例えば、パラジウム触媒等が挙げられ、中でも、ビス(トリフェニルホスフィン)パラジウム(II)ジクロリド、[1,1’-ビス(ジフェニルホスフィノ)フェロセン]パラジウム(II)ジクロリド ジクロロメタン付加物、酢酸パラジウムとジ(1-アダマンチル)-n-ブチルホスフィン、酢酸パラジウムとジシクロヘキシル(2,2-ジフェニル-1-メチルシクロプロピル)ホスフィン等が好ましい。中でも、ビス(トリフェニルホスフィン)パラジウム(II)ジクロリドが金属触媒としてより好ましい。
カルボン酸としては、例えば、ピバル酸、イソ酪酸、プロピオン酸、安息香酸等が挙げられるが、好ましくは、ピバル酸又はイソ酪酸であり、より好ましくは、ピバル酸である。
塩基としては、例えば、アルカリ金属炭酸塩、アルカリ金属酢酸塩等が挙げられるが、好ましくは、炭酸カリウムである。
式 [ III ] の化合物の使用量は、式 [ II ] の化合物1モルに対して、1.0から5.0モル、好ましくは1.6から2.0モルである。
金属触媒の使用量は、式 [ II ] の化合物1モルに対して、0.005から0.2モル、好ましくは0.01から0.025モルである。
カルボン酸の使用量は、式 [ II ] の化合物1モルに対して、0.1から1.0モル、好ましくは0.2から0.5モルである。
塩基の使用量は、式 [ II ] の化合物1モルに対して、0.4から4.0モル、好ましくは0.6から1.8モルである。
反応温度は、約80℃から約150℃、好ましくは約90℃から約140℃、より好ましくは約100℃から約110℃である。
反応時間は、約1時間から約6時間、好ましくは約3時間である。
本反応は、反応に悪影響を及ぼさない溶媒中で、塩基の存在下で行われる。
溶媒としては、例えば、メタノール、エタノール、2-プロパノール等のアルコール類、水等、又はそれらの混合物が例示されるが、中でも、エタノールと水の混合溶媒が好ましい。
塩基としては、例えば、水酸化ナトリウム、水酸化カリウム等の無機塩基が挙げられ、中でも、水酸化ナトリウムが好ましい。
塩基の使用量は、式 [ IV ] の化合物1モルに対して、7から16モル、好ましくは10から13モルである。
反応温度は、内温約25℃から溶媒の沸点、好ましくは約70℃である。
反応時間は、約1時間から約8時間、好ましくは約1.5時間である。
縮合剤としては、例えば、1-エチル-3-(3-ジメチルアミノプロピル)カルボジイミド塩酸塩、ジシクロヘキシルカルボジイミド (DCC)、O-(ベンゾトリアゾール-1-イル)-N,N,N’,N’-テトラメチルウロニウム テトラフルオロホウ酸塩 (TBTU)、2-(1H-7-アザベンゾトリアゾール-1-イル)-1,1,3,3-テトラメチルウロニウム ヘキサフルオロリン酸塩 (HATU)、1,1’-カルボニルジイミダゾール等が挙げられるが、中でも、1-エチル-3-(3-ジメチルアミノプロピル)カルボジイミド塩酸塩が好ましい。これらは単独で、もしくは添加剤(例えば、1-ヒドロキシベンゾトリアゾール (HOBt)・1水和物、N-ヒドロキシスクシンイミド (HOSu)、6-クロロ-1-ヒドロキシベンゾトリアゾール (Cl-HOBt)、1-ヒドロキシ-7-アザベンゾトリアゾール (HOAt)あるいは3-ヒドロキシ-4-オキソ-3,4-ジヒドロ-1,2,3-ベンゾトリアジン等が挙げられるが、好ましくは、1-ヒドロキシベンゾトリアゾール・1水和物である。)と組み合わせて用いることもできる。中でも、1-エチル-3-(3-ジメチルアミノプロピル)カルボジイミド塩酸塩と1-ヒドロキシベンゾトリアゾール・1水和物の組み合わせが特に好適に用いられる。
縮合剤の使用量は、式 [ V ] の化合物1モルに対して、1から10モルであり、好ましくは1から2モルである。
添加剤の使用量は、式 [ V ] の化合物1モルに対して、1から10モルであり、好ましくは1から2モルである。
アンモニアの使用量は、例えばアンモニア水を用いる場合は、式 [ V ] の化合物1モルに対して、アンモニアの量に換算して1から3モルであり、好ましくは1から2モルである。
また、アンモニアとして塩化アンモニウムと塩基(例えば、トリアルキルアミン、具体的には、トリエチルアミンやジイソプロピルエチルアミン等)とを用いることができる。
溶媒としては、例えば、ジエチルエーテル、1,4-ジオキサン、テトラヒドロフラン等のエーテル類、酢酸エチル等のエステル類、クロロホルム、ジクロロメタン等のハロゲン化炭化水素類、N,N-ジメチルホルムアミド等のアミド類、又はそれらの混合物等が例示でき、適宜混合しても良い。中でも、N,N-ジメチルホルムアミドが好ましい。
反応温度は溶媒の種類によって異なるが、約0℃から約40℃、好ましくは約15℃から約30℃であり、反応時間は、約0.5時間から約24時間、好ましくは約1.5時間から約8時間である。
攪拌時間は、内温約40℃から約50℃下で、約1時間から約7時間、好ましくは約2時間であり、内温約55℃から約65℃下で、約1時間から約4時間、好ましくは約1時間から約2時間であり、室温で約8時間から24時間、好ましくは約12時間である。
本操作2では、水の滴下後に式[ Ih ] の化合物の種晶を添加して晶析操作を行ってもよい。
本反応は、反応に悪影響を及ぼさない溶媒中で、塩基の存在下で行われる。
溶媒としては、テトラヒドロフラン、1,4-ジオキサン、1,2-ジメトキシエタン等のエーテル類、ヘキサン、トルエン等の炭化水素類、N,N-ジメチルホルムアミド、N,N-ジメチルアセトアミド等のアミド類、又はそれらの混合物が例示される。中でも、テトラヒドロフランが好ましい。
塩基としては、例えば、水素化ナトリウム、カリウム tert-ブトキシド、ナトリウムメトキシド、ナトリウムビス(トリメチルシリル)アミド、炭酸セシウム等が挙げられるが、好ましくは、水素化ナトリウムである。
塩基の使用量は、式 [ IX ] の化合物1モルに対して、1から2モル、好ましくは1から1.5モルである。
式 [ X ] の化合物の使用量は、式 [ IX ] の化合物1モルに対して、1から1.5モル、好ましくは1から1.2モルである。
反応温度は、室温から溶媒の沸点、好ましくは約50℃から約65℃である。
反応時間は、約1時間から約24時間である。
1. 化合物 (2) または化合物 (2m) について
化合物 (2) は、良好な結晶性を有するメタノール和物 (化合物 (2m))に変換することにより、一回の操作により、良好な化学純度と、良好な光学純度(例えば、95%e.e.以上)を有する化合物へと精製することができた。
化合物 (3) は、蒸留により90%以上(蒸留条件により99%以上)の純度に精製することができた。
特定のカップリング反応条件下、化合物 (2) と化合物 (3) を用いた場合、化合物 (2) と下記化合物 (101) を使用した場合よりも、カップリング反応の副反応を抑制することができた。
特定のカップリング反応条件下、化合物 (3) と化合物 (2) を用いた場合、化合物 (3) と化合物 (102) (下記クロロ化合物(ラセミ体))を用いた場合よりも高い収率で目的のカップリング体を得ることができた。
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
dd:ダブルダブレット
ddd:ダブルダブルダブレット
dddd:ダブルダブルダブルダブレット
J:カップリング定数
MeOH:メタノール
DMSO-D6:重ジメチルスルホキシド
1H-NMR:プロトン核磁気共鳴
HPLC:高速液体クロマトグラフィー
1H-NMRスペクトルはDMSO-D6中、テトラメチルシランを内部標準として測定し、全δ値をppmで示した。
リン酸二水素ナトウム・2水和物(4.68g)を水(3000mL)に溶解し、リン酸(5mL)を加えて標題緩衝液を得た。
下記分析条件中、「%」とは体積%を示す。また、グラジエントはA液及びB液の混合比を直線的に変化させる。
分析条件1
測定機器:HPLCシステム Waters Alliance
カラム:Waters SunFire C18 3.5μm 4.6mmφ×150mm
カラム温度:40℃
移動相:(A液)リン酸塩緩衝液(pH2.0)、(B液)アセトニトリル
グラジエントプロファイル:時間(分) 0 30 35 40 45 (停止)
A(%) 70 25 25 70 70
B(%) 30 75 75 30 30
分析時間:45分
流速:1.0mL/分
検出:UV(220nm)
測定機器:HPLCシステム Waters Alliance
カラム:Waters SunFire C8 3.5μm 4.6mmφ×150mm
カラム温度:40℃
移動相 :(A液)蒸留水、(B液)アセトニトリル
グラジエントプロファイル:時間(分) 0 20 35 36 40 (停止)
A(%) 60 10 10 60 60
B(%) 40 90 90 40 40
分析時間:40分
流速:1.0mL/分
検出:UV(220nm)
測定機器:HPLCシステム Waters Alliance
カラム:ダイセル CHIRALCEL OD-3R 3μm 4.6mmφ×150mm
カラム温度:40℃
移動相:(A液)リン酸塩緩衝液(pH2.0)、(B液)アセトニトリル
グラジエントプロファイル:時間(分) 0 20 30 40 45 (停止)
A(%) 70 40 40 70 70
B(%) 30 60 60 30 30
分析時間:45分
流速:0.5mL/分
検出:UV(254nm)
測定機器:HPLCシステム Waters Alliance
カラム:ダイセル CHIRALCEL OJ-3R 3μm 4.6mmφ×150mm
カラム温度:40℃
移動相:(A液)リン酸塩緩衝液(pH2.0)、(B液)アセトニトリル
移動相の組成 :A液:B液=70:30
分析時間:15分
流速:1.0mL/分
検出:UV(220nm)
2-{4-[(9R)-9-ヒドロキシ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-4-イル]-1H-ピラゾール-1-イル}-2-メチルプロパンアミド・1水和物(化合物(1h))の合成
(2-アミノ-3-ブロモ-5-フルオロフェニル)(フェニル)メタノン(化合物 (12) )
1H-NMR (400MHz, DMSO-D6) δ: 7.78 (dd, 1H, J = 7.8, 3.0 Hz), 7.67-7.61 (m, 3H), 7.58-7.51 (m, 2H), 7.11 (dd, 1H, J = 9.3, 3.0 Hz), 6.73 (brs, 2H).
(2-アミノ-3-ブロモ-5-フルオロフェニル)(フェニル)メタノン (化合物 (12)) (1.00g)のトルエン(25mL)溶液に、室温で25%臭化水素酸の酢酸溶液(0.87mL)を添加した。析出した固体をろ取し、ろ過物をトルエンで洗浄し、得られた固体を減圧乾燥して、(2-アミノ-3-ブロモ-5-フルオロフェニル)(フェニル)メタノン (化合物 (12)) 臭化水素酸塩の種晶(1.21g)を得た。
標題化合物である(2-アミノ-3-ブロモ-5-フルオロフェニル)(フェニル)メタノン (化合物 (12)) の種晶は、前記工程1において、種晶を添加しない同様の方法で得た。
4-ブロモ-2-フルオロ-9H-フルオレン-9-オン(化合物(6))
1H-NMR (400MHz, DMSO-D6) δ: 8.27 (dd, 1H, J = 8.2, 0.9 Hz), 7.79 (dd, 1H, J = 8.8, 2.3 Hz), 7.72-7.67 (m, 2H), 7.51 (dd, 1H, J = 6.8, 2.3 Hz), 7.46 (ddd, 1H, J = 7.6, 7.6, 0.9 Hz).
N-(4-tert-ブチル-3-メトキシベンジル)シンコニジウムブロミド (化合物(15))の合成
1H-NMR (400MHz, DMSO-D6) δ: 8.99 (d, 1H, J = 4.4 Hz), 8.29 (d, 1H, J = 8.3 Hz), 8.11 (dd, 1H, J = 8.6, 1.4 Hz), 7.88-7.82 (m, 1H), 7.81 (d, 1H, J = 4.4 Hz), 7.78-7.72 (m, 1H), 7.39 (d, 1H, J = 8.1 Hz), 7.34 (d, 1H, J = 1.8 Hz), 7.22 (dd, 1H, J = 8.1, 1.8 Hz), 6.72 (d, 1H, J = 4.6 Hz), 6.55 (d, 1H, J = 4.6 Hz), 5.69 (ddd, 1H, J = 17.4, 10.6, 6.5 Hz), 5.16 (dd, 1H, J = 17.4, 1.4 Hz), 5.10 (d, 1H, J = 12.2 Hz), 4.97 (d, 1H, J = 12.2 Hz), 4.96 (dd, 1H, J = 10.6, 1.4 Hz), 4.36-4.23 (m, 1H), 3.96-3.84 (m, 1H), 3.89 (s, 3H), 3.80-3.69 (m, 1H), 3.40-3.25 (m, 2H), 2.77-2.65 (m, 1H), 2.20-1.96 (m, 3H), 1.91-1.79 (m, 1H), 1.38 (s, 9H), 1.38-1.26 (m, 1H).
4-ブロモ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9H-フルオレン-9-オン (化合物(8))
1H-NMR (400MHz, DMSO-D6) δ: 8.17 (dd, 1H, J = 8.32, 0.92 Hz), 7.66-7.60 (m, 2H), 7.40-7.34 (m, 1H), 7.29 (d, 1H, J = 2.3 Hz), 7.16 (d, 1H, J = 2.3 Hz), 4.12 (s, 1H), 4.18 (t, 2H, J = 7.2 Hz), 1.85 (t, 2H, J = 7.2 Hz), 1.18 (s, 6H).
(9R)-4-ブロモ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-9-オール・0.5メタノール和物 (化合物(2m))
1H-NMR (400MHz, DMSO-D6) δ: 8.31 (ddd, 1H, J = 7.8, 1.2, 0.7 Hz), 7.65 (dddd, 1H, J = 7.8, 1.4, 0.9, 0.7 Hz), 7.54 (ddd, 1H, J = 7.6, 7.6, 1.4 Hz), 7.40 (ddd, 1H, J = 7.6, 7.6, 1.2 Hz), 7.40 (s, 1H), 7.29 (d, 1H, J = 2.3 Hz), 7.19 (dd, 1H, J = 2.3, 0.9 Hz), 4.42 (s, 1H), 4.18 (t, 2H, J = 7.2 Hz), 4.08(q, 0.49H, J = 5.4 Hz), 3.17 (d, 1.42H, J = 5.4 Hz), 1.86 (t, 2H, J = 7.2 Hz), 1.18 (s, 6H).
(熱重量分析)
熱重量分析による重量減少は、化合物(2m)(化合物(2)の0.5メタノール和物)の理論値と良く一致した。
理論値:3.58%(0.5メタノール和物としての計算値)
実測値:3.56%
工程5の1M塩酸処理後、減圧濃縮、トルエン-10%食塩水分液及び水洗浄を経て得られたトルエン溶液を濃縮し、シリカゲルカラムクロマトグラフィー(展開溶媒:ヘキサン/酢酸エチル(3v/2v)から(5v/4v))で化合物 (2) を単離した(光学純度 70.5%e.e.)。単離した化合物 (2)を、MeOH/水(3v/1.7v) 混合溶液より結晶化して化合物(2m)の種晶を得ることができる(光学純度 98.9%e.e.)。光学純度はHPLC分析条件3にて決定した。(R)体の保持時間24.5分、(S)体の保持時間23.2分。
(9R)-4-ブロモ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-9-オール (化合物 (2) )
比旋光度[α]D +11.4°(c=1.00 MeOH 25℃).
1H-NMR (DMSO-D6) δ: 8.30 (ddd, 1H, J = 7.8, 1.2, 0.7 Hz), 7.64 (dddd, 1H, J = 7.8, 1.4, 0.9, 0.7 Hz), 7.53 (ddd, 1H, J = 7.6, 7.6, 1.4 Hz), 7.39 (ddd, 1H, J = 7.6, 7.6, 1.2 Hz), 7.39 (s, 1H), 7.28 (d, 1H, J = 2.3 Hz), 7.18 (dd, 1H, J = 2.3, 0.9 Hz), 4.41 (s, 1H), 4.16 (t, 2H, J = 7.2 Hz), 1.85 (t, 2H, J = 7.2 Hz), 1.17 (s, 6H).
さらに、化合物 (2) を用いて、後述する化合物 (1h) まで誘導し、その比旋光度を測定した。その結果、国際公開第2014/142290号に記載される化合物 (2-{4-[(9R)-9-ヒドロキシ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-4-イル]-1H-ピラゾール-1-イル}-2-メチルプロパンアミド・1水和物 (国際公開第2014/142290号記載の化合物 (2h))) と同等の比旋光度を示した。
2-{4-[(9R)-9-ヒドロキシ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-4-イル]-1H-ピラゾール-1-イル}-2-メチルプロピオン酸tert-ブチル(化合物 (4))
1H-NMR (400MHz, DMSO-D6) δ: 8.16 (d, 1H, J = 0.7 Hz), 7.68 (d, 1H, J = 0.7 Hz),7.62-7.57 (m, 1H), 7.32-7.18 (m, 3H), 7.23 (s, 1H), 7.15 (d, 1H, J = 2.4 Hz), 6.84 (d, 1H, J = 2.4 Hz), 4.41 (s, 1H), 4.16 (t, 2H, J = 7.2 Hz), 1.87 (t, 2H, J = 7.2 Hz), 1.81 (s, 6H), 1.38 (s, 9H), 1.18 (s, 6H).
2-{4-[(9R)-9-ヒドロキシ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-4-イル]-1H-ピラゾール-1-イル}-2-メチルプロピオン酸 (化合物 (5))
1H-NMR (400MHz, DMSO-D6) δ: 13.09 (brs, 1H), 8.17 (d, 1H, J = 0.6 Hz), 7.64 (d, 1H, J = 0.6 Hz), 7.61-7.56 (m, 1H), 7.29-7.18 (m, 4H), 7.15 (d, 1H, J = 2.4 Hz), 6.86 (d, 1H, J = 2.4 Hz), 4.40 (s, 1H), 4.16 (t, 2H, J = 7.2 Hz), 1.87 (t, 2H, J = 7.2 Hz), 1.84 (s, 3H), 1.83 (s, 3H), 1.18 (s, 6H).
2-{4-[(9R)-9-ヒドロキシ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-4-イル]-1H-ピラゾール-1-イル}-2-メチルプロパンアミド・1水和物 (化合物 (1h))
比旋光度[α]D +39.1°(c=1.00 MeOH 25℃).
1H-NMR (400MHz, DMSO-D6) δ: 8.09 (d, 1H, J = 0.9 Hz), 7.68 (d, 1H, J = 0.9 Hz), 7.62-7.56 (m, 1H), 7.36-7.30 (m, 1H), 7.30-7.22 (m, 3H), 7.21 (s, 1H), 7.14 (d, 1H, J = 2.5 Hz), 6.97 (brs, 1H), 6.88 (d, 1H, J = 2.5 Hz), 4.40 (s, 1H), 4.16 (t, 2H, J = 7.2 Hz), 1.87 (t, 2H, J = 7.2 Hz), 1.80 (s, 3H), 1.80 (s, 3H), 1.18 (s, 6H).
(水分定量)
Karl Fischer滴定法(電量滴定)による水分定量値は、化合物(1h)(化合物(1)の1水和物)の理論値と良く一致した。
理論値:3.45%(1水和物としての計算値)
実測値:3.48%
工程9で使用した種晶は、国際公開第2014/142290号記載の実施例(2-{4-[(9R)-9-ヒドロキシ-2-(3-ヒドロキシ-3-メチルブチルオキシ)-9-(トリフルオロメチル)-9H-フルオレン-4-イル]-1H-ピラゾール-1-イル}-2-メチルプロパンアミド・1水和物 / 化合物 (2h))に準じて得られた固体を用いて、エタノールと水の混合溶媒より製造した。
本工程9に準じた方法を用いて、晶析の際に種晶を添加しない場合でも、目的とする化合物 (1h) の結晶が得られた。
2-メチル-2-(1H-ピラゾール-1-イル)プロパン酸 tert-ブチル (化合物 (3))の合成
1H-NMR (400MHz, DMSO-D6) δ: 7.83 (dd, 1H, J = 2.4, 0.7 Hz), 7.46 (dd, 1H, J = 1.8, 0.7 Hz), 6.26 (dd, 1H, J = 2.4, 1.8 Hz), 1.71 (s, 6H), 1.32 (s, 9H).
また、本発明に係る式 [ II ]、式 [ IIm ]、式 [ III ] 及び式 [ IV ] の化合物は、式 [ I ] の化合物又はその製薬上許容される塩、或いはその水和物を製造するための合成中間体として有用である。
さらに、本発明の製造方法は、取り扱いの容易な化合物を経由し、簡便な操作にて行うことができることから、工業的な大量合成法として有用である。
Claims (18)
- 金属触媒が、パラジウム触媒である、請求項1に記載の方法。
- 塩基が、アルカリ金属炭酸塩又はアルカリ金属酢酸塩である、請求項1又は2に記載の方法。
- カルボン酸が、ピバル酸、イソ酪酸、プロピオン酸又は安息香酸である、請求項1から3のいずれか一項に記載の方法。
- カップリング反応の反応温度が、80から150℃である、請求項1から4のいずれか一項に記載の方法。
- 前記式 [ V ] の化合物又はその塩を、縮合剤存在下、アンモニアと反応させることにより、前記式 [ I ] で表される化合物又はその製薬上許容される塩、或いはその水和物に変換する工程を更に含む、請求項6に記載の方法。
- 不斉有機触媒がシンコニジニウム塩である、請求項8に記載の方法。
- シンコニジニウム塩がN-(4-tert-ブチル-3-メトキシベンジル)シンコニジウムブロミドである、請求項9に記載の方法。
- 式 [ I ] :
式 [ VI ] :
式 [ VIII ] の化合物を、不斉有機触媒の存在下、(トリフルオロメチル)トリメチルシランと反応後、酸処理し、式 [ II ] :
式 [IX ] :
前記式 [ III ] の化合物を、金属触媒、塩基およびカルボン酸存在下、前記式 [ II ] の化合物又はそのメタノール和物とのカップリング反応により、式[ IV ] :
前記式 [ IV ] の化合物を加水分解することにより、式 [ V ] :
前記式 [ V ] の化合物又はその塩を、縮合剤存在下、アンモニアと反応させることによりアミド化する工程を含む、製造方法。 - 請求項1から12のいずれか一項に記載の方法で製造された化合物またはその製薬上許容される塩。
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2017303898A AU2017303898B2 (en) | 2016-07-29 | 2017-07-28 | Production method for pyrazole-amide compound |
BR112019001447-0A BR112019001447A2 (pt) | 2016-07-29 | 2017-07-28 | método de produção para composto pirazol-amida |
US16/319,938 US10981877B2 (en) | 2016-07-29 | 2017-07-28 | Production method for pyrazole-amide compound |
CA3031621A CA3031621A1 (en) | 2016-07-29 | 2017-07-28 | Production method for pyrazole-amide compound |
EP17834510.4A EP3492452B1 (en) | 2016-07-29 | 2017-07-28 | Production method for pyrazole-amide compound |
MX2019001228A MX2019001228A (es) | 2016-07-29 | 2017-07-28 | Metodo de produccion del compuesto de pirazol-amida. |
KR1020197005948A KR20190036549A (ko) | 2016-07-29 | 2017-07-28 | 피라졸-아미드 화합물의 제조 방법 |
CN202210561913.5A CN114716377A (zh) | 2016-07-29 | 2017-07-28 | 吡唑-酰胺化合物的制造方法 |
JP2018530408A JP7036724B2 (ja) | 2016-07-29 | 2017-07-28 | ピラゾール-アミド化合物の製造方法 |
RU2019105577A RU2736722C2 (ru) | 2016-07-29 | 2017-07-28 | Способ получения соединения пиразоламида |
CN201780046848.XA CN109476609B (zh) | 2016-07-29 | 2017-07-28 | 吡唑-酰胺化合物的制造方法 |
IL264307A IL264307B (en) | 2016-07-29 | 2019-01-17 | Production method for a pyrazole-amide compound |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016-150657 | 2016-07-29 | ||
JP2016150657 | 2016-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018021508A1 true WO2018021508A1 (ja) | 2018-02-01 |
Family
ID=61017374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/027358 WO2018021508A1 (ja) | 2016-07-29 | 2017-07-28 | ピラゾール-アミド化合物の製造方法 |
Country Status (12)
Country | Link |
---|---|
US (1) | US10981877B2 (ja) |
EP (1) | EP3492452B1 (ja) |
JP (1) | JP7036724B2 (ja) |
KR (1) | KR20190036549A (ja) |
CN (2) | CN114716377A (ja) |
AU (1) | AU2017303898B2 (ja) |
BR (1) | BR112019001447A2 (ja) |
CA (1) | CA3031621A1 (ja) |
IL (1) | IL264307B (ja) |
MX (1) | MX2019001228A (ja) |
RU (1) | RU2736722C2 (ja) |
WO (1) | WO2018021508A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200017505A1 (en) * | 2018-02-01 | 2020-01-16 | Japan Tobacco Inc. | Nitrogen-containing heterocyclic amide compound and pharmaceutical use thereof |
WO2020054734A1 (ja) | 2018-09-11 | 2020-03-19 | 日本たばこ産業株式会社 | ピラゾール-アミド化合物を含有する慢性腎臓病の治療又は予防剤 |
WO2020179770A1 (ja) | 2019-03-04 | 2020-09-10 | 日本たばこ産業株式会社 | ピラゾール-アミド化合物の非晶質固体分散体 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114716377A (zh) * | 2016-07-29 | 2022-07-08 | 日本烟草产业株式会社 | 吡唑-酰胺化合物的制造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010041748A1 (ja) * | 2008-10-10 | 2010-04-15 | 日本たばこ産業株式会社 | フルオレン化合物及びその医薬用途 |
WO2014142290A1 (ja) * | 2013-03-15 | 2014-09-18 | 日本たばこ産業株式会社 | ピラゾール-アミド化合物およびその医薬用途 |
WO2014142291A1 (ja) * | 2013-03-15 | 2014-09-18 | 日本たばこ産業株式会社 | フルオレン化合物の水和物、およびその結晶 |
WO2015002119A1 (ja) * | 2013-07-01 | 2015-01-08 | 日本たばこ産業株式会社 | ピラゾール-アルコール化合物およびその医薬用途 |
WO2015002118A1 (ja) * | 2013-07-01 | 2015-01-08 | 日本たばこ産業株式会社 | フルオレン-アミド化合物およびその医薬用途 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2827285B1 (fr) | 2001-07-10 | 2003-12-05 | Rhodia Chimie Sa | Reactif et procede pour la perfluoroalcoylation |
TWI329111B (en) | 2002-05-24 | 2010-08-21 | X Ceptor Therapeutics Inc | Azepinoindole and pyridoindole derivatives as pharmaceutical agents |
TW200418825A (en) | 2002-12-16 | 2004-10-01 | Hoffmann La Roche | Novel (R)-and (S) enantiomers of thiophene hydroxamic acid derivatives |
CA2521784C (en) | 2003-04-08 | 2012-03-27 | Yeda Research And Development Co. Ltd. | Reversible pegylated drugs |
RU2006107371A (ru) | 2004-02-20 | 2006-09-10 | Астеллас Фарма Инк. (Jp) | Флуореновые производные |
FR2885904B1 (fr) | 2005-05-19 | 2007-07-06 | Aventis Pharma Sa | Nouveaux derives du fluorene, compositions les contenant et utilisation |
CN102421739A (zh) | 2009-04-22 | 2012-04-18 | 安斯泰来制药株式会社 | 羧酸化合物 |
CN102822148B (zh) | 2010-03-31 | 2015-03-11 | 东丽株式会社 | 纤维肌痛综合征的治疗剂或预防剂 |
AU2014230812B2 (en) * | 2013-03-13 | 2016-04-07 | F. Hoffmann-La Roche Ag | Process for making benzoxazepin compounds |
CN114716377A (zh) * | 2016-07-29 | 2022-07-08 | 日本烟草产业株式会社 | 吡唑-酰胺化合物的制造方法 |
-
2017
- 2017-07-28 CN CN202210561913.5A patent/CN114716377A/zh active Pending
- 2017-07-28 AU AU2017303898A patent/AU2017303898B2/en not_active Ceased
- 2017-07-28 MX MX2019001228A patent/MX2019001228A/es unknown
- 2017-07-28 KR KR1020197005948A patent/KR20190036549A/ko not_active Application Discontinuation
- 2017-07-28 RU RU2019105577A patent/RU2736722C2/ru active
- 2017-07-28 WO PCT/JP2017/027358 patent/WO2018021508A1/ja unknown
- 2017-07-28 US US16/319,938 patent/US10981877B2/en active Active
- 2017-07-28 JP JP2018530408A patent/JP7036724B2/ja active Active
- 2017-07-28 BR BR112019001447-0A patent/BR112019001447A2/pt not_active IP Right Cessation
- 2017-07-28 EP EP17834510.4A patent/EP3492452B1/en active Active
- 2017-07-28 CN CN201780046848.XA patent/CN109476609B/zh not_active Expired - Fee Related
- 2017-07-28 CA CA3031621A patent/CA3031621A1/en active Pending
-
2019
- 2019-01-17 IL IL264307A patent/IL264307B/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010041748A1 (ja) * | 2008-10-10 | 2010-04-15 | 日本たばこ産業株式会社 | フルオレン化合物及びその医薬用途 |
WO2014142290A1 (ja) * | 2013-03-15 | 2014-09-18 | 日本たばこ産業株式会社 | ピラゾール-アミド化合物およびその医薬用途 |
WO2014142291A1 (ja) * | 2013-03-15 | 2014-09-18 | 日本たばこ産業株式会社 | フルオレン化合物の水和物、およびその結晶 |
WO2015002119A1 (ja) * | 2013-07-01 | 2015-01-08 | 日本たばこ産業株式会社 | ピラゾール-アルコール化合物およびその医薬用途 |
WO2015002118A1 (ja) * | 2013-07-01 | 2015-01-08 | 日本たばこ産業株式会社 | フルオレン-アミド化合物およびその医薬用途 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3492452A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200017505A1 (en) * | 2018-02-01 | 2020-01-16 | Japan Tobacco Inc. | Nitrogen-containing heterocyclic amide compound and pharmaceutical use thereof |
US10800784B2 (en) * | 2018-02-01 | 2020-10-13 | Japan Tobacco Inc. | Nitrogen-containing heterocyclic amide compound and pharmaceutical use thereof |
WO2020054734A1 (ja) | 2018-09-11 | 2020-03-19 | 日本たばこ産業株式会社 | ピラゾール-アミド化合物を含有する慢性腎臓病の治療又は予防剤 |
WO2020179770A1 (ja) | 2019-03-04 | 2020-09-10 | 日本たばこ産業株式会社 | ピラゾール-アミド化合物の非晶質固体分散体 |
CN113490492A (zh) * | 2019-03-04 | 2021-10-08 | 日本烟草产业株式会社 | 吡唑酰胺化合物的非晶质固体分散体 |
KR20210135266A (ko) | 2019-03-04 | 2021-11-12 | 니뽄 다바코 산교 가부시키가이샤 | 피라졸-아미드 화합물의 비정질 고체 분산체 |
JP7489370B2 (ja) | 2019-03-04 | 2024-05-23 | 日本たばこ産業株式会社 | ピラゾール-アミド化合物の非晶質固体分散体 |
CN113490492B (zh) * | 2019-03-04 | 2024-09-27 | 日本烟草产业株式会社 | 吡唑酰胺化合物的非晶质固体分散体 |
Also Published As
Publication number | Publication date |
---|---|
EP3492452B1 (en) | 2022-08-31 |
EP3492452A4 (en) | 2019-12-25 |
CN114716377A (zh) | 2022-07-08 |
JPWO2018021508A1 (ja) | 2019-05-23 |
MX2019001228A (es) | 2019-06-03 |
US20190375717A1 (en) | 2019-12-12 |
IL264307B (en) | 2021-04-29 |
CA3031621A1 (en) | 2018-02-01 |
US10981877B2 (en) | 2021-04-20 |
EP3492452A1 (en) | 2019-06-05 |
RU2019105577A3 (ja) | 2020-08-31 |
AU2017303898B2 (en) | 2021-01-21 |
RU2736722C2 (ru) | 2020-11-19 |
KR20190036549A (ko) | 2019-04-04 |
JP7036724B2 (ja) | 2022-03-15 |
CN109476609B (zh) | 2022-06-14 |
AU2017303898A1 (en) | 2019-01-31 |
BR112019001447A2 (pt) | 2019-05-07 |
RU2019105577A (ru) | 2020-08-31 |
CN109476609A (zh) | 2019-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7036724B2 (ja) | ピラゾール-アミド化合物の製造方法 | |
US8501814B2 (en) | Selective androgen receptor modulators | |
JP6832946B2 (ja) | キナーゼ阻害剤およびその中間体の調製方法 | |
CN1129941A (zh) | 取代的氮杂二氢亚吲哚基化合物及其制备方法 | |
KR102266680B1 (ko) | 벨리노스테트의 다형태 및 이의 제조 방법 | |
JP2018518489A (ja) | アプレミラスト及びその中間体の調製方法 | |
JP6632127B2 (ja) | トロンボポエチン受容体アゴニスト作用を有する光学活性な化合物およびその中間体の製造方法 | |
JP2015522037A (ja) | ベムラフェニブコリン塩の固体形態 | |
WO2016017711A1 (ja) | ピラゾール誘導体の製造方法 | |
JP6884857B2 (ja) | フェニルアラニン類化合物の製造方法 | |
JP2007513863A (ja) | 新規化合物 | |
JP2009518380A (ja) | 2−クロロエトキシ−酢酸−n,n−ジメチルアミドの製法 | |
JP2006500409A (ja) | No供与ジクロフェナクのようなno供与化合物の製造方法 | |
TW201031402A (en) | New retinoid derivatives endowed with cytotoxic and/or antiangiogenic properties | |
US10189804B2 (en) | Method for producing dicarboxylic acid compound | |
JP2007023029A (ja) | 医薬組成物 | |
JP7519376B2 (ja) | ロスバスタチンカルシウム塩の製造方法 | |
KR101163864B1 (ko) | 발사르탄의 제조방법 및 이에 사용되는 신규 중간체 | |
WO2024048615A1 (ja) | キノキサリン誘導体の製造方法 | |
JP6797839B2 (ja) | テリフルノミドの新規製造方法 | |
US20110060145A1 (en) | Process for production of compound having antagonistic activity on npyy5 receptor, and useful crystal | |
JP2013221025A (ja) | ビフェニルアセトアミド誘導体の製造方法及びその中間体 | |
JP2008513371A (ja) | 8−ハロ−1,7−ナフタピリジン誘導体と有機ボロン酸誘導体の反応による6,8−置換−1,7−ナフタピリジン誘導体の製造方法および該方法の中間体 | |
JPH10130204A (ja) | 4−ハロゲノ−3−トリフルオロメチルフェノキシブタン酸エステル類の製造法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17834510 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2018530408 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 3031621 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2017303898 Country of ref document: AU Date of ref document: 20170728 Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112019001447 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 20197005948 Country of ref document: KR Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2017834510 Country of ref document: EP Effective date: 20190228 |
|
ENP | Entry into the national phase |
Ref document number: 112019001447 Country of ref document: BR Kind code of ref document: A2 Effective date: 20190124 |