WO2022260062A1 - ジヒドロピリダジン-3,5-ジオン誘導体の製造方法 - Google Patents
ジヒドロピリダジン-3,5-ジオン誘導体の製造方法 Download PDFInfo
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- 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
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
- B01J31/2409—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom
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- C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C309/29—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of non-condensed six-membered aromatic rings
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- C07D239/26—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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
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- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
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- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/40—Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
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Definitions
- the present invention relates to a method for producing dihydropyridazine-3,5-dione derivatives.
- Non-Patent Document 1 It is known that in patients with renal dysfunction such as chronic kidney disease (CKD) and end-stage renal disease (ESKD), phosphorus accumulates in the body and causes hyperphosphatemia. Vascular calcification due to hyperphosphatemia can cause cardiovascular dysfunction. It also results in hypersecretion of parathyroid hormone and causes bone lesions. Thus, hyperphosphatemia can be a factor that worsens the prognosis and QOL of end-stage renal failure patients and dialysis patients (Non-Patent Document 1).
- CKD chronic kidney disease
- EKD end-stage renal disease
- Non-Patent Document 2 Blood phosphorus levels in patients with CKD stages 3 and 4 are associated with cardiovascular morbidity and mortality, and suppression of blood phosphorus levels in these patients may contribute to the reduction or prevention of cardiovascular disease. may be connected. Furthermore, controlling a patient's phosphate load earlier may reduce and/or prevent disease progression in early CDK patients (Non-Patent Document 4).
- Phosphorus binders aimed at suppressing phosphate absorption in the gastrointestinal tract are used in the current treatment of hyperphosphatemia.
- phosphorus adsorbents non-metallic polymer adsorbents typified by sevelamer hydrochloride, calcium salt preparations typified by precipitated calcium carbonate, and metallic adsorbents typified by lanthanum carbonate are used. Poor drug compliance due to the need to take several grams per dose, and side effects due to calcium accumulation in the body have been reported. Therefore, there is a strong demand for the development of a new therapeutic agent for hyperphosphatemia that overcomes these problems associated with phosphorus adsorbents (Non-Patent Document 4).
- NaPi-I, NaPi-II, and NaPi-III Three families of sodium-dependent phosphate transporters, NaPi-I, NaPi-II, and NaPi-III, are known. These families are further divided into isotypes, and in the case of the NaPi-II family, NaPi-IIa, NaPi-IIb, and NaPi-IIc are known.
- phosphate transporters such as NaPi-IIb, PiT-1, and PiT-2 are known to be responsible for phosphate absorption in the gastrointestinal tract, and are involved in these phosphate absorptions.
- Non-Patent Document 5 Non-Patent Document 6, Non-Patent Document 7, and non-patent document 8.
- NTX1942 Patent Document 1
- condensed thiophene derivatives Patent Documents 2, 3, 4, and 5
- Patent Documents 2, 3, 4, and 5 have been reported as NaPi-IIb inhibitors.
- N-[4-(trifluoromethyl)-2-[6-(trifluoromethyl)pyrimidin-4-yl]phenyl]-6,7-diazaspiro[4,5]dec-9-ene-9-carboxamide Dihydropyridazine-3,5-dione derivatives typified by compound I hereinafter
- Patent Document 6 and Patent Document 7 Dihydropyridazine-3,5-dione derivatives typified by compound I hereinafter
- Patent Documents 6 and 7 a compound represented by Formula 1 is produced using a compound obtained by a Suzuki coupling reaction between a phenylboronic acid ester derivative and a chloropyrimidine derivative as an intermediate.
- Production cost is a problem in the production of compounds that include Suzuki coupling reaction in the reaction process.
- palladium used as a catalyst increases production costs
- bispinacolatodiboron which is used as a raw material for boronic acid esters, increases raw material costs (Non-Patent Document 9, Patent Document 8).
- Non-Patent Document 10 describes a method for producing a salt of the compound represented by formula 1 and a crystal thereof.
- it is desirable to select the most thermodynamically stable crystal form at room temperature.
- establishment of a robust manufacturing method thereof is known to be an important factor directly linked to development costs (Non-Patent Document 11).
- dihydropyridazine-3,5-dione derivatives will be used as therapeutic agents for chronic diseases such as hyperphosphatemia, that is, long-term treatment by drug administration.
- the inventors of the present application carefully examined the manufacturing method of drug substances from the viewpoint of raw material costs and reaction conditions in order to ensure stable supply of pharmaceuticals and to reduce manufacturing costs.
- the inventors have conducted extensive studies to solve these problems. Using an alternative raw material for the phenyl boronic acid ester derivative, which is expensive among raw materials, the compound represented by formula 1 can be produced without increasing impurities mixed in the drug substance compared to the conventional method. A method has been found to obtain p-toluenesulfonate.
- p-toluenesulfonic acid salt of the compound represented by formula 1 was obtained by mixing the compound represented by formula 1 and p-toluenesulfonic acid, whereas in formula 1 After obtaining a specific solvate of p-toluenesulfonate of the compound represented, by removing the solvent, the desired crystal can be obtained in good yield, without contamination with another crystal form, The inventors have found that the desired crystal can be obtained, and completed the present invention.
- [1-2] A1) preparing an ethanol solution of the compound represented by Formula 1 and p-toluenesulfonic acid; A2) adding a poor solvent to the solution to precipitate a solid; A3) recovering the solid to obtain a wet powder of said p-toluenesulfonate; and A4) subjecting said wet powder to drying conditions to obtain a dry powder of type 1 crystals of said p-toluenesulfonate.
- the method according to [1-1] comprising obtaining
- the poor solvent used in A2 is used in an amount of 0.8 parts by weight or more and 3.5 parts by weight or less with respect to 1 part by weight of ethanol used in A1, [1-2 ] The method described in .
- the poor solvent is used in a range of 0.8 parts by weight or more and 3.5 parts by weight or less with respect to 1 part by weight of ethanol used in B1. Method.
- the poor solvent is a solvent containing hexane or heptane; a solvent selected from hexane and heptane; or a mixed solvent containing hexane and heptane. Any method described.
- the dry powder of the type 1 crystal of p-toluenesulfonate has diffraction angles 2 ⁇ of 4.9°, 9.4°, 9.9°, and 15.2 in powder X-ray diffraction.
- the dry powder of the type 1 crystal of p-toluenesulfonate has diffraction angles 2 ⁇ of 4.9°, 9.4°, 15.8° and 18.9 in powder X-ray diffraction.
- the dry powder of the p-toluenesulfonate type 1 crystal contains a peak at a diffraction angle 2 ⁇ of 15.8° ( ⁇ 0.5°) in powder X-ray diffraction.
- the dry powder of the type 1 crystal of p-toluenesulfonate has diffraction angles 2 ⁇ of 4.9°, 9.4°, 9.9° and 15.2 in powder X-ray diffraction. °, 15.8 °, 18.9 ° and 22.6 ° ( ⁇ 0.2 °), having a powder X-ray diffraction pattern comprising at least one peak, [1-1] to [1 -11].
- the dry powder of the type 1 crystal of p-toluenesulfonate has diffraction angles 2 ⁇ of 4.9°, 9.4°, 9.9°, and 15.2 in powder X-ray diffraction. °, 15.8 °, 18.9 ° and 22.6 ° ( ⁇ 0.5 °) having a powder X-ray diffraction pattern, any of [1-1] to [1-15] described method.
- the dry powder of the type 1 crystal of p-toluenesulfonate has diffraction angles 2 ⁇ of 4.9°, 9.4°, 15.8° and 18.9 in powder X-ray diffraction.
- the dry powder of the p-toluenesulfonate type 1 crystal contains a peak at a diffraction angle 2 ⁇ of 15.8° ( ⁇ 0.5°) in powder X-ray diffraction.
- the dry powder of the type 1 crystal of p-toluenesulfonate has diffraction angles 2 ⁇ of 4.9°, 9.4°, 9.9°, and 15.2 in powder X-ray diffraction. °, 15.8 °, 18.9 ° and 22.6 ° ( ⁇ 0.2 °) having a powder X-ray diffraction pattern, any of [1-1] to [1-18] described method.
- the dry powder of the type 1 crystal of p-toluenesulfonate has diffraction angles 2 ⁇ of 4.9°, 9.4°, 15.8° and 18.9 in powder X-ray diffraction.
- the amount of the solvent used to convert the compound represented by Formula 1 to the p-toluenesulfonate is 2 to 15 parts by weight per 1 part by weight of the compound represented by Formula 1.
- the amount of p-toluenesulfonic acid used to convert the compound represented by formula 1 to the p-toluenesulfonate is 1 per equivalent of the compound represented by formula 1.
- the palladium catalyst is 1,1′-bis(diphenylphosphino)ferrocene-palladium(II) dichloride complex, 1,1′-bis(diphenylphosphino)ferrocene-palladium(II) dichloride dichloromethane complex, Bis(triphenylphosphine)palladium(II) dichloride, dichlorobis(tricyclohexylphosphine)palladium(II), [1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene](3-chloropyridyl)palladium (II) dichloride, (1,3-bis(2,6-diisopropylphenyl)imidazolidene)(3-chloropyridyl)palladium (II) dichloride, and [1,3-bis(2,6-di-3- Pentylphenyl)imidazol
- the reaction between the compound represented by Formula 5 and the dicarboxylic acid imide alkali metal salt includes N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, 1,3-dimethyl-2 -imidazolidinone, N,N'-dimethylpropylene urea, acetonitrile, and dimethylsulfoxide, or a mixed solvent of two or more solvents selected from the solvent, [2- 1] to [2-9].
- a solvent selected from tetrahydrofuran, 2-methyltetrahydrofuran, dimethoxyethane, 1,4-dioxane, and 1,3-dioxane, or selected from the solvent
- a reaction to obtain a compound represented by Formula 5 is carried out in a solvent selected from tetrahydrofuran, 2-methyltetrahydrofuran, and dimethoxyethane, or a reaction solvent containing two or more solvents selected from the solvents.
- a solvent selected from tetrahydrofuran, 2-methyltetrahydrofuran, and dimethoxyethane
- the method according to any one of [2-1] to [2-11].
- Formula 1 A method for producing a compound represented by 1) preparing a compound represented by formula 2 by the method described in any one of [2-1] to [2-15]; 2) reacting a compound represented by formula 2 with a malonic acid derivative to give formula 6:
- the condensing agent is selected from the group consisting of propylphosphonic anhydride (cyclic trimer), diethyl chlorophosphate, and N,N'-diisopropylcarbodiimide, [3-1] to [3-3] The method according to any one of
- Formula 1 A method for producing crystals of p-toluenesulfonate of the compound represented by converting the compound of formula 1 to said p-toluenesulfonate salt in a solvent and collecting the precipitated solid to obtain said wet p-toluenesulfonate salt; said method comprising subjecting said wet p-toluenesulfonate salt to drying conditions to obtain dry Form 1 crystals of said p-toluenesulfonate salt.
- the present invention provides 7-[[2,3-difluoro-4-[2-[2-methoxyethyl(methyl)amino]ethoxy], which has a strong inhibitory effect on NaPi-IIb, PiT-1, and PiT-2.
- FIG. 1 shows an example of a synthetic scheme for compound I.
- FIG. 2 shows the result of powder X-ray diffraction measurement of the crystal powder obtained in Example 7 and the powder X-ray diffraction pattern of crystals obtained by other methods.
- the vertical axis is the diffraction intensity
- the horizontal axis is the diffraction angle 2 ⁇ (°).
- 3 shows the thermogravimetric analysis results of the dry powder of Example 7.
- FIG. The horizontal axis represents temperature (°C), and the vertical axis represents heat flow observed in the thermal analysis.
- FIG. 4 shows the result of powder X-ray diffraction measurement of the crystal powder obtained in Example 8 and the powder X-ray diffraction pattern of crystals obtained by other methods.
- the vertical axis is the diffraction intensity, and the horizontal axis is the diffraction angle 2 ⁇ (°). 5 shows the thermogravimetric analysis results of the dry powder of Example 8.
- FIG. The horizontal axis represents temperature (°C), and the vertical axis represents heat flow observed in the thermal analysis.
- leaving group refers to a group that can be eliminated by cleavage of a chemical bond and that can generate an anionic atom or an anionic molecule by elimination. or a halogeno group consisting of a halogen atom such as an iodo group, and a sulfonyl group such as a mesyl group, a tosyl group, a trifluoromethanesulfonyl group, or a nitrophenylsulfonyl group.
- halogen atom as used herein is exemplified by a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- alkyl refers to a monovalent group derived from an aliphatic hydrocarbon by removing any one hydrogen atom, and refers to heteroatoms (atoms other than carbon and hydrogen atoms) in the skeleton. ) or a subset of hydrocarbyl or hydrocarbon radical structures containing hydrogen and carbon atoms without containing unsaturated carbon-carbon bonds.
- the alkyl group includes linear, branched, or cyclic.
- the alkyl group is an alkyl group having 1 to 20 carbon atoms (C 1-20 , hereinafter “C pq ” means having p to q carbon atoms), preferably C 1-6 alkyl groups are included. Specific examples include methyl, ethyl, propyl, butyl, pentyl, hexyl, isopropyl, tert-butyl, sec-butyl, cyclopentyl, cyclohexyl and the like.
- the temperature at which the compound is handled is a temperature (room temperature) near the room temperature of the working environment of a normal worker, such as a range of 10 ° C. or higher and 30 ° C. or lower, or a range of 15 ° C. or higher and 25 ° C. or lower. exemplified.
- the temperature at which the compound is handled in the reaction vessel is exemplified by a temperature range from ⁇ 100° C. by using a refrigerant such as liquid nitrogen to around the boiling point of the solvent.
- a temperature suitable for efficiently producing the desired product can be selected according to the stability of the compound and the reactivity of the starting material.
- X 1 and X 2 each represent a leaving group.
- a commercially available compound can be used as the compound represented by Formula 3, which is a starting material.
- the leaving group X 1 include, for example, a halogen atom, preferably a fluorine atom, or a chlorine atom, with a particularly preferred example being a fluorine atom.
- the leaving group X2 include, for example, a halogen atom, preferably a chlorine atom, a bromine atom, or an iodine atom, with a chlorine atom being particularly preferred.
- a C 1-6 alkylmagnesium halide is added to a solution of a compound of formula 3, for example at -100 to 10°C, preferably -60 to 0°C, more preferably -30 to -10°C. and C 1-6 alkyllithium are added.
- the molar ratio [C 1-6 alkyllithium/C 1-6 alkylmagnesium halide] of the reagents used is, for example, 1.5 to 3.0, preferably 1.8 to 2.8, more preferably 2.0. ⁇ 2.5 and can be added in sequence with a solution of C 1-6 alkylmagnesium halide followed by a solution of C 1-6 alkyllithium.
- the equivalent amount of the alkylmagnesium halide to the compound represented by formula 4 is not particularly limited, but for example, 0.25 to 2.0 equivalents, preferably 0.28 to 1.0 equivalents, more preferably 0.30 to 0.50 equivalents can be used.
- the compound represented by formula 3 is, for example, 0.8 to 3.0 equivalents, preferably 1.0 to 2.0 equivalents, more preferably 1.3 to 1.0 equivalents, relative to the compound represented by formula 4. 7 equivalents can be used.
- the dropping time can be appropriately set in consideration of the reaction scale and temperature change of the reaction solution.
- the resulting reaction mixture can be stirred at, for example, -100 to 10°C, preferably -60 to 0°C, more preferably -30 to -10°C.
- the stirring time can be, for example, 0.1 to 12 hours, preferably 1 to 10 hours, more preferably 2 to 7 hours.
- Examples of the solvent used for the solution of the compound represented by Formula 3 include ethers (eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether, t-butyl methyl ether, diisopropyl ether, cyclopentyl methyl ether, 1, 2-dimethoxyethane, etc.), hydrocarbons (eg, pentane, hexane, heptane, benzene, toluene, etc.).
- ethers eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether, t-butyl methyl ether, diisopropyl ether, cyclopentyl methyl ether, 1, 2-dimethoxyethane, etc.
- hydrocarbons eg, pentane, hexane, heptane, benzene, toluene, etc.
- Solvents for the C 1-6 alkylmagnesium halide solution include, for example, ethers (eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether, t-butylmethyl ether, diisopropyl ether, cyclopentylmethyl ether, 1,2 -dimethoxyethane, etc.), hydrocarbons (eg, pentane, hexane, heptane, benzene, toluene, etc.).
- ethers eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether, t-butylmethyl ether, diisopropyl ether, cyclopentylmethyl ether, 1,2 -dimethoxyethane, etc.
- hydrocarbons eg, pentane, hexane, heptane, benzene, to
- Solvents for the C 1-6 alkyllithium solution include, for example, hydrocarbons (eg, pentane, hexane, heptane, benzene, toluene, etc.), ethers (eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether , t-butyl methyl ether, diisopropyl ether, cyclopentyl methyl ether, 1,2-dimethoxyethane, etc.).
- hydrocarbons eg, pentane, hexane, heptane, benzene, toluene, etc.
- ethers eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether , t-butyl methyl ether, diisopropyl ether, cyclopentyl methyl ether, 1,2-dimethoxye
- a zinc halide solution is added dropwise to the resulting reaction mixture at, for example, -60 to 10°C, preferably -50 to 0°C, more preferably -30 to -10°C.
- 0.1 to 2.0 equivalents, preferably 0.6 to 1.5 equivalents, more preferably 0.8 to 1.3 equivalents of zinc halide relative to the compound represented by formula 4 can be used.
- the dropping time can be appropriately set in consideration of the reaction scale and temperature change of the reaction solution.
- solvent used for the zinc halide solution examples include ethers (eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether, t-butylmethyl ether, diisopropyl ether, cyclopentylmethyl ether, 1,2-dimethoxyethane etc.), hydrocarbons (eg, pentane, hexane, heptane, benzene, toluene, etc.).
- ethers eg, tetrahydrofuran (THF), 2-methyltetrahydrofuran, diethyl ether, t-butylmethyl ether, diisopropyl ether, cyclopentylmethyl ether, 1,2-dimethoxyethane etc.
- hydrocarbons eg, pentane, hexane, heptane, benzene, toluene, etc.
- the resulting reaction mixture can be stirred at, for example, -60 to 10°C, preferably -40 to 10°C, more preferably -20 to 5°C.
- the stirring time is, for example, 0.1 to 4 hours, preferably 0.15 to 2 hours, and more preferably 0.2 to 1.5 hours.
- the compound represented by Formula 4 and the palladium catalyst for example, -20 to 20 ° C., preferably -20 to 10 ° C., more preferably -10 to 5 ° C. and can be added.
- the amount of the palladium catalyst is, for example, 0.001 to 0.1 equivalents (0.1 to 10 mol%), preferably 0.003 to 0.05 equivalents (0 .3 to 5 mol %), more preferably 0.005 to 0.02 equivalents (0.5 to 2 mol %) can be used.
- the reaction mixture obtained by adding the compound represented by Formula 4 and the palladium catalyst is heated at, for example, 25 to 100° C., preferably 40 to 80° C., more preferably 50 to 70° C. can be stirred for, for example, 0.1 to 12 hours, preferably 0.5 to 8 hours, more preferably 1 to 3 hours.
- the resulting compound represented by Formula 5 may be subjected to the next step after purification by column chromatography or the like, or may be subjected to the next step without particular purification.
- the C 1-6 alkylmagnesium halide includes, for example, C 1-6 alkylmagnesium chloride, specifically C 3-6 alkylmagnesium chloride, preferably i-propylmagnesium chloride. , n-butylmagnesium chloride, cyclopentylmagnesium chloride, and cyclohexylmagnesium chloride.
- a suitable solvent solution can be used for these C 1-6 alkylmagnesium halides.
- the C 1-6 alkyllithium is not particularly limited, and examples include C 1-6 alkyllithium which is easily available as an industrial raw material, specifically methyllithium, n-butyllithium, Examples include s-butyllithium and t-butyllithium.
- C 1-6 alkyllithium can be used as a solution in a suitable solvent.
- the zinc halide is not particularly limited, and examples thereof include zinc halides that are readily available as industrial raw materials, specifically zinc chloride, zinc bromide, zinc iodide, and the like. be done. A suitable solvent solution can be used for these zinc halides.
- the palladium catalyst is not particularly limited as long as it acts as a catalyst for the reaction.
- 1′-bis(diphenylphosphino)ferrocene-palladium(II) dichloride dichloromethane complex bis(triphenylphosphine)palladium(II) dichloride, dichlorobis(tricyclohexylphosphine)palladium(II), [1,3-bis( 2,6-diisopropylphenyl)imidazol-2-ylidene](3-chloropyridyl)palladium (II) dichloride, (1,3-bis(2,6-diisopropylphenyl)imidazolidene)(3-chloropyridyl)palladium ( II) dichloride, or [1,3-bis(2,6-di-3-pentylphenyl)imidazol-2-ylidene](3-chlor
- X 1 is a fluorine atom
- X 2 is a chlorine atom
- the C 1-6 alkylmagnesium halide is a C 3-6 alkylmagnesium chloride
- the zinc halide is zinc chloride .
- X 1 is a fluorine atom
- X 2 is a chlorine atom
- the C 1-6 alkylmagnesium halide is a C 3-6 alkylmagnesium chloride and the zinc halide is zinc chloride
- the palladium catalyst is 1,1′-bis(diphenylphosphino)ferrocene-palladium(II) dichloride complex or 1,1′-bis(diphenylphosphino)ferrocene-palladium(II) dichloride dichloromethane complex.
- a compound of formula 5 is treated in a suitable solvent at a suitable temperature, for example 50 to 150°C, preferably 80 to 130°C, more preferably 90 to 110°C, to form a dicarboxylic acid imide. It can be reacted with an alkali metal salt.
- a suitable temperature for example 50 to 150°C, preferably 80 to 130°C, more preferably 90 to 110°C
- an alkali metal salt for example, 0.9 to 2.0 equivalents, preferably 1.0 to 1.5 equivalents, more preferably 1.05 to 1.2 equivalents of dicarboxylic acid imide with respect to the compound represented by formula 5 Alkali metal salts can be used.
- the reaction time can be appropriately set in consideration of the reaction scale and changes in the temperature of the reaction solution.
- solvents examples include acetonitrile, dimethylsulfoxide (DMSO), N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMA), N-methylpyrrolidone (NMP), 1,3-dimethyl-2- Imidazolidinone (DMI), N,N'-dimethylpropylene urea (DMPU), or a mixed solvent of two or more solvents selected from these solvents can be used.
- DMSO dimethylsulfoxide
- DMF N,N-dimethylformamide
- DMA N,N-dimethylacetamide
- NMP N-methylpyrrolidone
- DI 1,3-dimethyl-2- Imidazolidinone
- DMPU N,N'-dimethylpropylene urea
- dicarboxylic acid imide alkali metal salt examples include potassium phthalimide and sodium phthalimide, and potassium phthalimide is preferred.
- a nucleophilic agent is added to the reaction mixture to convert the imide structure. Convert to amine (imido decomposition reaction). Reaction analysis of the imide decomposition reaction can be omitted.
- the reaction temperature is not particularly limited, it can be carried out at, for example, 0 to 150°C, preferably 25 to 100°C, more preferably 40 to 60°C.
- the nucleophilic agent amines such as C 1-6 alkylamine and hydrazine can be used, preferably C 1-6 alkylamine, more preferably an aqueous solution of methylamine.
- the amount of the methylamine aqueous solution is not particularly limited as long as a significant side reaction does not occur. It can be used in an amount containing 5 to 15 equivalents.
- the above reaction time can be appropriately set in consideration of the reaction scale and changes in the temperature of the reaction solution.
- the crude product of the compound of formula 2 (compound II) can be purified. Purification methods include column chromatography and recrystallization.
- An example of a synthetic intermediate of compound I is, more specifically, a compound represented by formula 6 obtained by reacting compound II with a malonic acid derivative in a suitable solvent.
- the malonic acid derivative used in the above method is exemplified by dialkylmalonic acids such as Meldrum's acid, dimethylmalonic acid and diethylmalonic acid, or malonic acid.
- Meldrum's acid is preferred.
- the solvent used in this step is not particularly limited as long as it is a solvent used in ordinary chemical reactions, as long as it does not interfere with the reaction, but is selected from toluene, heptane, acetonitrile, methanol, and ethanol. or a mixed solvent of two or more solvents selected from these solvents.
- the condensation reaction between the compound represented by Formula 6 and the compound represented by Formula 7 can be carried out by a method commonly used by those skilled in the art for the condensation reaction between a carboxyl group and an amino group.
- One aspect of the condensation reaction is a condensation reaction using a condensing agent.
- Condensing agents include diethyl chlorophosphate, propylphosphonic anhydride (T3P), N,N'-dicyclohexylcarbodiimide (DCC), N,N'-diisopropylcarbodiimide (DIC), or 1-(3-dimethylaminopropyl).
- -3-ethylcarbodiimide (EDCI) and the like are exemplified.
- the solvent used in this step is not particularly limited as long as it is a solvent used in ordinary chemical reactions, as long as it does not interfere with the reaction. , N-methylpyrrolidone, N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, N,N′-dimethylpropyleneurea, acetonitrile, dimethylsulfoxide, or 2 selected from said solvents It is preferable to carry out in a mixed solvent of the above solvents.
- the said condensation reaction is performed in presence of a base as needed. Specific examples of bases include bases selected from the group consisting of pyridine, dimethylaminopyridine, N,N-diisopropylethylamine, and triethylamine.
- a method for producing a crystalline powder of p-toluenesulfonate (TsOH salt) of Compound I is provided.
- the outline of the production method is shown by the scheme below.
- the p-toluenesulfonate salt of Compound I is prepared by precipitating the p-toluenesulfonate salt of Compound I from a solution of Compound I and p-toluenesulfonic acid dissolved in a solvent. can be obtained.
- the amount of p-toluenesulfonic acid used can be, for example, 1 equivalent or more, specifically 1 equivalent, relative to compound I.
- the p-toluenesulfonic acid used is a commercially available product, preferably p-toluenesulfonate monohydrate.
- Ethanol can be used as a solvent for the solution of compound I and p-toluenesulfonic acid.
- seed crystals may be added and/or ethanol
- Other solvents may be added to the solution.
- a solvent (poor solvent) having low solubility of the target substance can be used for the purpose of increasing the deposition amount of the target substance or increasing the deposition rate of the target substance.
- Such poor solvents include hexane, heptane, or pentane.
- the ratio of the other solvent to 1.0 part by weight of ethanol is 0.80 to 3.5, preferably 1.0. ⁇ 3.0, more preferably 1.2-2.5, most preferably 1.5-2.2.
- the seed crystal for example, the crystal described in Non-Patent Document 10 can be used.
- the “type 1 crystal” in the present invention is one embodiment of the p-toluenesulfonate crystal of compound I, and this type 1 crystal has a powder X-ray diffraction pattern of 4.9°, 9.4 °, 9.9°, 15.2°, 15.8°, 18.9°, and 22.6°, characterized by having peaks at diffraction angles (2 ⁇ ) ( Non-Patent Document 9).
- the diffraction angles (2 ⁇ ) of type 1 crystals are 4.9°, 9.4°, 9.9°, 15.2°, 15.8°, 18.9°, and 22.6° ( ⁇ 0. 2°)) may have an X-ray powder diffraction pattern comprising at least one peak, or all of them.
- thermogravimetric analysis peaks due to melting are shown at 112.6° C. (extrapolation point) and 126.6° C. (peak top).
- another solvent may be added to further increase the amount of precipitation.
- Other solvents include hexane, heptane or pentane, and the like.
- the mixing ratio of ethanol and the other solvent after re-addition of the other solvent is such that the ratio of the other solvent to 8.0 parts by weight of ethanol is 7.0 to 28, preferably 8.0 to 24, More preferably 10-20, most preferably 14-20.
- the ethanol solution can be, for example, 22-28°C, specifically 25°C, in order to dissolve compound I and p-toluenesulfonic acid.
- the temperature when another solvent is added for crystallization may be lower than the temperature of the solution in which compound I and p-toluenesulfonic acid are dissolved, in order to further increase the amount of precipitation.
- it can be -5 to 33°C, specifically 25°C.
- the temperature at which other solvent is added for crystallization can be, for example, -5 to 33°C, specifically 25°C.
- compound I is dissolved in a mixed solvent of ethanol and another solvent, and after adding an ethanol solution of p-toluenesulfonic acid thereto, the p-toluenesulfonate salt of compound I is
- the p-toluenesulfonate of Compound I can be obtained by precipitation.
- the amount of p-toluenesulfonic acid used is preferably in the range of 1 equivalent or more and 1.2 equivalents or less, more preferably in the range of 1 equivalent or more and 1.1 equivalents or less, most preferably 1 can be equivalent. Seed crystals may be added for precipitation of the desired p-toluenesulfonate.
- solvents include hexane, heptane or pentane, preferably heptane, more preferably n-heptane.
- the ratio of the other solvent to 8.0 parts by weight of ethanol is 7.0 to 28, preferably 8.0 to 24, more preferably 10 to 20, most preferably Preferably, it can be 12-17.
- the seed crystal for example, the crystal described in Non-Patent Document 10 can be used.
- the solvent for dispersion may be any solvent in which the seed crystals are not completely dissolved.
- a solvent containing a solvent more preferably a solvent containing n-heptane, more preferably n-heptane.
- the other solvent may be a solvent capable of precipitating the p-toluenesulfonate of compound I, preferably hexane, heptane or pentane, more preferably a solvent containing n-heptane, and n-heptane is preferred.
- the mixing ratio of ethanol and the other solvent after re-addition of the other solvent is such that the ratio of the other solvent to 8.0 parts by weight of ethanol is 7.0 to 28, preferably 8.0 to 24, More preferably 10-20, most preferably 12-17.
- the ethanol solution can be, for example, 22-28°C, specifically 25°C, in order to dissolve compound I.
- the temperature when another solvent is added for crystallization can be, for example, -5 to 33°C, specifically 25°C.
- the temperature at which other solvent is added for crystallization can be, for example, -5 to 33°C, specifically 25°C.
- the precipitated crystals can be separated by a solid-liquid separation operation, for example, separation of a solid component and a liquid component by filtration or centrifugation, washing of a solid component with a washing solvent, drying of a washing solvent adhering to a solid component under reduced pressure, and the like. It can be isolated and purified from the dissolved solution or the mixed solution by means of separation and purification.
- the solvent for washing the solid component may be a solvent that does not cause the desired crystals of p-toluenesulfonate of Compound I to transform into other crystals, a solvent in which p-toluenesulfonate of Compound I has low solubility, and/or Solvents in which the p-toluenesulfonate salt of Compound I is not subject to decomposition are preferred, such as hexane, heptane, isopropyl acetate, n-butyl acetate, t-butyl methyl ether, etc., or mixtures of these solvents.
- wet as used herein means a state in which a solid contains a solvent.
- solids recovered from a solid-liquid separation operation may be referred to as wet solids if they contain a portion of the separated liquid.
- the p-toluenesulfonate salt of Compound I precipitated in a solvent is recovered as a wet solid (i.e., wet solid), which is a wet powder and/or a wet solid. sell.
- Powder as used herein means a solid with a particle size of 0.5 to 20 ⁇ m, for example, 1.0 to 10 ⁇ m.
- the particle size distribution of the powder can be measured by information such as laser diffraction/scattering method.
- wet powder refers to a mixture of the powder recovered by the solid-liquid separation operation and the solvent used in the solid-liquid separation operation and/or the solvent used for washing the powder.
- the mixing ratio of powder and solvent can be arbitrary.
- wet crystals refers to a mixture of crystals precipitated by the crystallization operation and the solvent used for the crystallization operation and/or the solvent used for washing the crystals.
- the mixing ratio of crystals and solvent can be arbitrary.
- “Dry powder” in the present specification refers to a state in which the solvent component is vaporized and the solvent component is reduced from the powder compared to the wet powder.
- the residual amount of the solvent in the powder can be arbitrary, but it refers to a state in which the adhesion between the powders is reduced and the fluidity is improved because the solvent is reduced from the powder.
- drying conditions is not particularly limited, but refers to, for example, conditions for converting a wet solid (eg, wet powder) into a dry solid (eg, dry powder).
- a wet powder mixed with a solvent that easily evaporates at normal temperature can be converted into a dry powder by allowing the solvent to evaporate when left at normal temperature and normal pressure.
- the wet powder may be heated to facilitate evaporation of the solvent. If heating is not suitable due to the nature of the materials forming the powder, the wet powder may be subjected to reduced pressure to accelerate the evaporation of the solvent. Heating and pressure reduction may be performed simultaneously or separately.
- dry powder of type 1 crystals of p-toluenesulfonate of compound I can be obtained by subjecting wet powder of p-toluenesulfonate of compound I to drying conditions.
- a dry powder of Form 1 crystals of p-toluenesulfonate salt of Compound I is obtained by phase transition of the crystals of p-toluenesulfonate salt of Compound I contained in the wet powder under dry conditions. be done.
- Powder X-ray diffraction in the present specification is a numerical value that can be obtained using the X-ray diffraction phenomenon used for identification and structural analysis of crystalline substances, and is a value specific to any powder. . This value is usually expressed in terms of one or more diffraction angles (2 ⁇ values). It can be measured using CuK ⁇ 1 radiation, and a person skilled in the art can use a commercially available instrument for powder X-ray diffraction measurement according to its instruction manual. More specifically, the 2 ⁇ value can be measured by irradiating a sample to be measured with X-rays of CuK ⁇ 1 and measuring diffracted X-rays with respect to the incident X-rays. For example, it can be carried out according to a conventional method such as the "powder X-ray diffraction measurement method" described in the Japanese Pharmacopoeia (17th or 18th revision).
- the diffraction angle (2 ⁇ value) in the powder X-ray diffraction spectrum may have some errors depending on the measurement equipment or measurement conditions such as the diffraction angle reading conditions.
- the diffraction angle used herein may have a measurement error in the range of about ⁇ 0.5° to ⁇ 0.2°.
- the "powder X-ray diffraction pattern" in this specification means the diffraction angle obtained by the measurement of the powder X-ray diffraction spectrum and its intensity plotted on the horizontal axis and the vertical axis, respectively.
- a person skilled in the art can use a commercially available instrument for powder X-ray diffraction measurement and plot according to its instruction manual.
- Thermogravimetric analysis in this specification is a technique for thermally analyzing changes in the physical and chemical properties of a sample, and is an analytical means for measuring changes in weight due to heating the sample.
- a person skilled in the art can use a commercially available instrument for thermogravimetric analysis and follow its instruction manual.
- “Differential thermal analysis” in this specification is an analytical means for detecting and measuring heat generation or endothermic heat generated by heating a sample.
- a person skilled in the art can use a commercially available instrument for differential thermal analysis measurement and follow its instruction manual.
- “Thermogravimetric analysis” and/or “differential thermal analysis” can be used to obtain information about physical phenomena such as sublimation, melting, solidification, condensation, evaporation, decomposition, adsorption, or desorption of a sample.
- the measured endothermic peak (peak top value) may vary in measurement temperature depending on the width of the temperature rise per minute and the purity of the sample.
- the extrapolation points and the measured values of peak tops may have a measurement error in the range of about ⁇ 5.0°C.
- the crystalline powder obtained by the method of the present invention can be pulverized or not pulverized into various forms of pharmaceutical compositions, such as oral agents such as tablets, capsules, granules, fine granules, powders, dry syrups, etc. Alternatively, it can be processed into an injection, but is preferably used as an oral formulation.
- These pharmaceutical compositions can be produced by a formulation method known and commonly used by those skilled in the art using a pharmaceutically acceptable carrier.
- excipients are added to the active ingredient, and if necessary, binders, disintegrants, lubricants, coloring agents, flavoring agents, flavoring agents, etc.
- a flavoring agent, a buffering agent, a stabilizing agent, a flavoring agent and the like can be added to the active ingredient to produce an oral liquid preparation, a syrup and the like by a conventional method.
- pH adjusters, buffers, stabilizers, tonicity agents, local anesthetics, etc. are added to the active ingredient, and subcutaneous, intramuscular, and intravenous injections are prepared by conventional methods. can be manufactured.
- the amount of the p-toluenesulfonate of compound I to be incorporated in the above pharmaceutical composition varies depending on the symptoms of the patient to whom it is applied or the dosage form, etc., but in general, it is an oral preparation per unit dosage form. About 10 to 700 mg, preferably about 10 to 700 mg for injections.
- the daily dose of type 1 crystals in the above pharmaceutical composition cannot be unconditionally determined according to the symptoms, administration route, age of the patient, etc., and is determined according to the doctor's prescription, usually about 10-500 mg. preferable.
- A, B, and/or C includes any combination in which “and” and “or” are appropriately combined.
- A, B, and/or C includes the following seven variations: (i) A, (ii) B, (iii) C, (iv) A and B, (v) A and C, (vi) B and C, (vii) A, B, and C.
- Powder X-ray (XRPD) diffraction measurement was performed under the following conditions, and the 2 ⁇ value of the scanning range was calculated.
- the diffraction angle (2 ⁇ value) is plotted on the horizontal axis and the line intensity is plotted on the vertical axis.
- Measuring device SmartLab System (manufactured by Rigaku Corporation) Source: Cuk ⁇ 1 Tube voltage: 45kV Tube current: 200mA Scanning range: 3-35° Sampling width: 0.02°
- Thermogravimetric analysis (TGA) analysis was performed using an EXSTAR TG/DTA6200R device (manufactured by Seiko Instruments (current company name: Hitachi High-Tech Science)). A 1-3 mg sample was placed in an aluminum container. The analysis temperature ranged from 30°C to 350°C. The samples were analyzed under nitrogen flow at a heating rate of 10°C/min.
- a Waters H-Class system was used for HPLC analysis, and measurements were made at 225 nm using a PDA detector.
- GC2010 manufactured by Shimadzu Corporation was used, and detection was performed by FID.
- the internal temperature of the reaction solution was heated to 60° C. over 30 minutes or longer, and one hour after reaching 60° C., a sample was taken, and disappearance of 4-chloro-6-(trifluoromethyl)pyrimidine was confirmed by GC analysis. After that, the internal temperature of the reaction solution was cooled to 25°C.
- Citric acid (10% aqueous solution, 555 mL) was added to the reaction solution, stirred for 20 minutes, allowed to stand, and the aqueous layer was discharged.
- EDTA-4 sodium dihydrate (10% aqueous solution, 555 mL) was added to the reaction solution, stirred for 20 minutes, allowed to stand, and the aqueous layer was discharged.
- step 1 The crude product of 4-(2-fluoro-5-(trifluoromethyl)phenyl)-6-(trifluoromethyl)pyrimidine obtained in step 1 was transferred to a 5 L flask and treated with N,N-dimethylformamide (1 .71 L) was added. A solution of potassium phthalimide (124.051 g, 670 mmol) in N,N-dimethylformamide (190 mL) was added to the solution. Stirring of the reaction liquid was started, the external temperature of the flask was set to 110° C., and heating was started. Three hours after the internal temperature of the reaction liquid reached 100°C, a sample was taken, and a reaction conversion rate of 99.3% was confirmed by HPLC analysis.
- n-butyllithium (1.63 M, hexane solution, 299 mL, 487 mmol) was added dropwise to the reaction solution over 47 minutes, and the inside of the dropping container was washed with tetrahydrofuran (30 mL), and the washing solution was added to the reaction solution. .
- the internal temperature was cooled to -20.1°C, and zinc chloride (1.0M tetrahydrofuran solution, 609mL, 609mmol) was added to the solution. It was added dropwise. After raising the internal temperature of the reaction solution to 0° C.
- aqueous tripotassium phosphate solution prepared by adding water (38.2 L) to tripotassium phosphate (25.3 kg) was added with nitrogen bubbling so that the internal temperature of the reaction solution did not exceed 50°C, and then the pressure was reduced. After degassing the reaction vessel for 5 minutes at the bottom, it was replaced with nitrogen. After stirring the reaction solution at an internal temperature of 50 to 60°C for 2 hours, a solution prepared by adding N,N-dimethylacetamide (95.5 L) to N-acetyl-L-cysteine (1.63 kg) was added. The mixture was further stirred at an internal temperature of 54.4 to 57.6°C for 1 hour.
- Example 1-2 A comparison between Example 1-2 and Reference Example 1 is shown in Table 2 below. Purity of compounds was calculated by HPLC analysis.
- Example 1-2 it was found that the target product with a purity equivalent to that of Reference Example 1 was obtained.
- Reference Example 2 Production of 1-(2-chloroethoxy)-2,3-difluorobenzene
- Step 2 In a reaction vessel under a nitrogen atmosphere, methyl (E)-1-(2-(2,3-difluoro-4-(2-((2-methoxyethyl)(methyl)amino)ethoxy)benzylidene)-1-methylhydra Dinyl)cyclopentane-1-carboxylate hydrochloride (60.0 g, 129 mmol) and toluene (360 mL) were added and suspended. The resulting slurry was cooled, and an aqueous sodium hydrogen carbonate solution (prepared by dissolving 21.7 g of sodium hydrogen carbonate in 300 mL of water) was added dropwise while maintaining the internal temperature at -5°C. Stirred for .5 hours.
- aqueous sodium hydrogen carbonate solution prepared by dissolving 21.7 g of sodium hydrogen carbonate in 300 mL of water
- the external temperature of the reaction vessel was set to 50° C., and a methanol solution of oxalic acid (prepared by dissolving 11.6 g of oxalic acid in 27.6 mL of methanol) was added at an internal temperature of 48° C. of the reaction solution, Stirred for an additional 20 minutes.
- the external temperature of the reaction vessel was set to 25° C. and n-heptane (138 mL) was added to the resulting solution.
- the external temperature of the reaction vessel was set to 0° C., and the reaction solution was stirred at an internal temperature of 1° C. or lower for an additional 1.5 hours.
- the precipitated crystals were collected by filtration and washed with a mixed solution prepared from toluene (110 L) and n-heptane (110 L).
- the wet powder was dried under reduced pressure at an external temperature of 40° C. to obtain the desired product (61.82 kg) (yield: 88%).
- HPLC Purity 99.9%. Measurement method: HPLC method A, retention time: 7.5 minutes. A comparison between Example 3 and Reference Example 5 is shown below. Purity of compounds was calculated by HPLC analysis.
- Example 3 it was found that the target product with a purity equivalent to that of Reference Example 5 was obtained.
- Example 4-1 1-((2-(2,3-difluoro-4-(2-((2-methoxyethyl)(methyl)amino)ethoxy)phenyl)methyl)-1-methyl-2- of methyl (3-oxo-3-((4-(trifluoromethyl)-2-(6-(trifluoromethyl)pyrimidin-4-yl)phenyl)amino)propanoyl)hydrazinyl)cyclopentane-1-carboxylate manufacturing
- Example 2 1-(2-(2,3-difluoro-4-(2-((2-methoxyethyl)(methyl)amino)ethoxy)benzyl)-1 obtained in Example 2 was placed in a reaction vessel under a nitrogen atmosphere. -methylhydrazinyl)cyclopentane-1-carboxylate solution and 3-oxo-3-((4-(trifluoromethyl)2-(6-(trifluoromethyl) obtained in Reference Example 5). A solution of pyrimidin-4-yl)phenyl)amino)propionic acid (39.9 g, 101 mmol) in N,N-dimethylformamide (145 mL) was added.
- aqueous sodium chloride solution (prepared by dissolving 12.5 g of sodium chloride in 124 mL of water) was added to the reaction solution at 25° C., and the mixture was stirred for 20 minutes. The aqueous layer was discarded, and an aqueous sodium chloride solution (prepared by dissolving 12.5 g of sodium chloride in 124 mL of water) was further added to the organic layer and stirred for 20 minutes. The aqueous layer was discarded, and then an aqueous solution of dipotassium hydrogen phosphate (prepared by dissolving 45.7 g of dipotassium hydrogen phosphate in 249 mL of water) was added to the organic layer, and the aqueous layer was drained after stirring for 15 minutes.
- dipotassium hydrogen phosphate prepared by dissolving 45.7 g of dipotassium hydrogen phosphate in 249 mL of water
- the organic layer was concentrated, the precipitated inorganic salts were filtered off with a Kiriyama funnel, and the filtrate was stored overnight at room temperature. After 13 hours, the filtrate was concentrated to dryness and 2-propanol (116 mL) was added to the residue. After stirring the resulting solution for 10 minutes, additional 2-propanol (382 mL) was added.
- the external temperature of the reaction vessel was set to 35° C., and the reaction solution was stirred at an internal temperature of 31° C. to 33° C. for 1 hour, after which the external temperature of the reaction vessel was lowered to 10° C. over 1.25 hours. After stirring for 30 minutes at an internal temperature of the reaction solution of 12°C to 14°C, the external temperature of the reaction vessel was raised to 35°C.
- Example 4-2 1-(2-((2,3-difluoro-4-(2-((2-methoxyethyl)(methyl)amino)ethoxy)phenyl)methyl using (EtO) 2 POCl )-1-methyl-2-(3-oxo-3-((4-(trifluoromethyl)2-(6-(trifluoromethyl)pyrimidin-4-yl)phenyl)amino)propanoyl)hydrazinyl)cyclopentane Synthesis of methyl-1-carboxylate
- the resulting suspension was concentrated under reduced pressure and ethyl acetate (170 L) was added.
- a 1M hydrochloric acid aqueous solution (85 kg) was added to the reaction mixture, and after stirring for 15 minutes, the mixture was allowed to stand, and the aqueous layer was discharged.
- a 10% aqueous solution of potassium dihydrogen phosphate (170 kg) was added to the reaction mixture, and the mixture was stirred for 15 minutes, allowed to stand, and the aqueous layer was discharged.
- a 10% aqueous sodium chloride solution (170 kg) was added to the reaction solution, stirred for 15 minutes, allowed to stand, and the aqueous layer was discharged.
- HPLC Purity 99.24%. Measurement conditions: HPLC method A, retention time: 9.4 minutes.
- p-Toluenesulfonic acid monohydrate (8 kg, 42 mol) dissolved in ethanol (13 kg) was added.
- Crystals of the title compound (0.03 kg, 0.035 mol) (prepared by the method described in Non-Patent Document 10) were suspended in n-heptane (0.5 L) and added as seed crystals.
- the vessel was washed with n-heptane (0.5 L) and the wash was added. After stirring for 1 hour and confirming the precipitation of crystals, n-heptane (56 kg) was added and the internal temperature of the crystallization liquid was raised to 33°C.
- Example 7 7-[[2,3-difluoro-4-[2-[2-methoxyethyl(methyl)amino]ethoxy]phenyl]methyl]-10-hydroxy-6-methyl-8-oxo-N -[4-(trifluoromethyl)-2-[6-(trifluoromethyl)pyrimidin-4-yl]phenyl]-6,7-diazaspiro[4,5]dec-9-ene-9-carboxamide p- Preparation of toluenesulfonate 7-[[2,3-difluoro-4-[2-[2-methoxyethyl(methyl)amino]ethoxy]phenyl]methyl]-10-hydroxy-6-methyl-8-oxo- N-[4-(trifluoromethyl)-2-[6-(trifluoromethyl)pyrimidin-4-yl]phenyl]-6,7-diazaspiro[4,5]dec-9-ene-9-carboxamide ( 311.6
- the powder X-ray diffraction patterns in FIG. 1 shows the powder X-ray diffraction patterns of the crystals obtained by Method (obtained using acetone), the wet powder obtained in Example 7, and the dry powder obtained in Example 7, respectively.
- Example 7 The dry powder of Example 7 was subjected to thermogravimetric analysis, and the measurement results are shown in FIG. Peaks due to melting were shown at 112.6° C. (extrapolated point) and 126.6° C. (peak top).
- the powder X-ray diffraction pattern of the dry powder is the same as that of the type 1 crystal, but the powder X-ray diffraction pattern of the wet powder shows a powder X-ray diffraction pattern different from that of the dry powder. It was confirmed that a crystal phase transition occurred in Yield was 257.1 mg.
- the powder X-ray diffraction patterns in FIG. The powder X-ray diffraction patterns of the crystals obtained by the method (obtained using acetone), the wet powder obtained in Example 8, and the dry powder obtained in Example 8 are shown.
- thermogravimetric analysis of the dry powder of Example 8 was performed. The analysis results are shown in FIG. Peaks due to melting were shown at 119.6°C (extrapolated point) and 130.2°C (peak top).
- the present invention provides 7-(2,3-difluoro-4-(2-((2-methoxyethyl)(methyl)amino)ethoxy)benzyl)-10-hydroxy-6-methyl useful as an active ingredient of pharmaceuticals.
- p-toluene of -N-(4-methyl-2-(6-methylpyrimidin-4-yl)phenyl)-8-oxo-6,7-diazaspiro[4.5]dec-9-ene-9-carboxamide A method for producing a sulfonate is provided.
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Abstract
Description
[1-1]式1
溶媒中で、式1で表される化合物を前記p-トルエンスルホン酸塩に変換し、析出した固体を回収して、前記p-トルエンスルホン酸塩の湿性粉末を得ること;
前記湿性粉末を乾燥条件に付して、前記p-トルエンスルホン酸塩の1型結晶の乾燥粉末を得ること
を含む、前記方法。
A2)該溶液に貧溶媒を添加して固体を析出させること、
A3)該固体を回収して前記p-トルエンスルホン酸塩の湿性粉末を得ること、および
A4)該湿性粉末を乾燥条件に付して、前記p-トルエンスルホン酸塩の1型結晶の乾燥粉末を得ること
を含む、[1-1]に記載の方法。
B2)該溶液にp-トルエンスルホン酸のエタノール溶液を添加して固体を析出させること、
B3)該固体を回収して前記p-トルエンスルホン酸塩の湿性粉末を得ること、および
B4)該湿性粉末を乾燥条件に付して、前記p-トルエンスルホン酸塩の1型結晶の乾燥粉末を得ること
を含む、[1-1]に記載の方法。
む粉末X線回折パターンを有する、[1-1]~[1-8]のいずれかに記載の方法。
[1-14]湿性結晶がエタノールを含有する、[1-13]に記載の方法。
1)[2-1]~[2-15]のいずれかに記載の方法により式2で表される化合物を調製すること、
2)式2で表される化合物とマロン酸誘導体を反応させて、式6:
溶媒中で、式1で表される化合物を前記p-トルエンスルホン酸塩に変換し、析出した固体を回収して、湿性の前記p-トルエンスルホン酸塩を得ること;
前記湿性p-トルエンスルホン酸塩を乾燥条件に付して、前記p-トルエンスルホン酸塩の乾燥1型結晶を得ること
を含む、前記方法。
DIC:N,N’-ジイソプロピルカルボジイミド
DIPEA:N,N-ジイソプロピルエチルアミン
DMA:N,N-ジメチルアセトアミド
DMF:N,N-ジメチルホルムアミド
DMI:1,3-ジメチル-2-イミダゾリジノン
DMSO:ジメチルスルホキシド
DMPU:N,N’-ジメチルプロピレン尿素
EtOH:エタノール
GC:ガスクロマトグラフィー
HPLC:高速液体クロマトグラフィー
MeCN:アセトニトリル
MeOH:メタノール
MTBE:メチルtert-ブチルエーテル
NMP:N-メチルピロリドン
NMR:核磁気共鳴スペクトル
PDA:フォトダイオードアレー検出器
T3P:プロピルホスホン酸無水物
t-Bu:t-ブチル
TEA:トリエチルアミン
TFA:トリフルオロ酢酸
本明細書における「脱離基」とは、化学結合の開裂により脱離可能であり、脱離により陰イオン原子、または陰イオン分子などを生じさせうる基を表し、フルオロ基、クロロ基、ブロモ基、またはヨード基のようなハロゲン原子からなるハロゲノ基のほか、メシル基、トシル基、トリフルオロメタンスルホニル基、またはニトロフェニルスルホニル基のようなスルホニル基が例示される。
本明細書における「アルキル」とは、脂肪族炭化水素から任意の水素原子を1個除いて誘導される1価の基であり、骨格中にヘテロ原子(炭素及び水素原子以外の原子をいう。)または不飽和の炭素-炭素結合を含有せず、水素及び炭素原子を含有するヒドロカルビルまたは炭化水素基構造の部分集合を有する。該アルキル基は直鎖状、分枝鎖状、または環状のものを含む。アルキル基としては、炭素原子数1~20(C1-20、以下「Cp-q」とは炭素原子数がp~q個であることを意味する。)のアルキル基であり、好ましくはC1-6アルキル基が挙げられる。具体的には、メチル、エチル、プロピル、ブチル、ペンチル、ヘキシル、イソプロピル、tert-ブチル、sec-ブチル、シクロペンチル、シクロヘキシルなどが挙げられる。
トリフルオロメチル)-2-(6-(トリフルオロメチル)ピリミジン-4-イル)アニリン(化合物II)を製造することができる。
目的のp-トルエンスルホン酸塩の析出後、析出量をさらに増加させるために、さらに他の溶媒を添加してもよい。他の溶媒としては、ヘキサン、ヘプタンまたはペンタンなどが挙げられる。他の溶媒の再添加後のエタノールと他の溶媒の混合比としては、エタノールの8.0重量部に対する他の溶媒の重量部の割合が7.0~28、好ましくは8.0~24、さらに好ましくは10~20、最も好ましくは14~20とすることができる。
本発明の実施に用いたDMF、DMA、NMP、DMI、またはDMPUなどに例示される溶媒は商業的供給業者品を精製せずに用いた。また、水を溶媒として加えない反応では、脱水溶媒、超脱水溶媒、または無水溶媒などの商業的供給業者品を精製せずに用いた。
1H-NMRスペクトルは、核磁気共鳴装置JNM-ECP500(日本電子社製)を用いて測定し、内部標準物質として用いたMe4Siのケミカルシフトを0ppmとし、サンプル溶媒からの重水素ロック信号を参照した。分析対象化合物のシグナルのケミカルシフトはppmで表記した。シグナルの分裂の略語は、s=シングレット、brs=ブロードシングレット、d=ダブレット、t=トリプレット、q=カルテット、dd=ダブルダブレット、m=マルチプレットで表記し、シグナルの分列幅はJ値(Hz)で表記した。シグナルの積分値は、各シグナルのシグナル面積強度の比をもとに算出した。
測定装置:SmartLab System(Rigaku Corporation社製)
線源:Cukα1
管電圧:45kV
管電流:200mA
走査範囲:3~35°
サンプリング幅:0.02°
以下に示す製造ルートで製造した。
測定方法:GC、保持時間:7.4分
[工程2]4-(トリフルオロメチル)-2-(6-(トリフルオロメチル)ピリミジン-4-イル)アニリンの製造
測定方法:HPLC 方法A、保持時間:8.8分
1H-NMR(500MHz,CDCl3)δ:6.71(2H,brs),6.83(1H,d,J=9.0Hz),7.49(1H,d,J=8.5Hz),7.95(1H,s),8.04(1H,s),9.34(1H,s)。
[工程1]4-(2-フルオロ-5-(トリフルオロメチル)フェニル)-6-(トリフルオロメチル)ピリミジンの製造
測定方法:GC、保持時間:7.4分
[工程2]4-(トリフルオロメチル)-2-(6-(トリフルオロメチル)ピリミジン-4-イル)アニリンの製造
測定方法:HPLC 方法A、保持時間:8.8 分。
(参照例1)4-(トリフルオロメチル)-2-(6-(トリフルオロメチル)ピリミジン-4-イル)アニリンの製造(従来法)
以下に示す製造ルートで製造した。
(参照例2)1-(2-クロロエトキシ)-2,3-ジフルオロベンゼンの製造
1-(メチルアミノ)シクロペンタン-1-カルボン酸メチルを出発原料とし、参照例3で得られた、2,3-ジフルオロ-4-(2-((2-メトキシエチル)(メチル)アミノ)エトキシ)ベンズアルデヒドを用い、国際公開第2014/142273号公報に記載の下記に示す製造ルートで製造した。
反応容器に窒素雰囲気下、メチル (E)-1-(2-(2,3-ジフルオロ-4-(2-((2-メトキシエチル)(メチル)アミノ)エトキシ)ベンジリデン)-1-メチルヒドラジニル)シクロペンタン-1-カルボキシレート 塩酸塩(60.0g、129mmol)とトルエン(360mL)を加え、懸濁させた。得られたスラリーを冷却し、内温-5℃に保ちながら、炭酸水素ナトリウム水溶液(炭酸水素ナトリウム21.7gを300mLの水に溶解して調製)を滴下し、室温に昇温し、さらに0.5時間撹拌した。有機層を分離後、得られた水層をさらにトルエン(60mL)で抽出し、合わせた有機層を濃縮し、(E)-1-(2-(2,3-ジフルオロ-4-(2-((2-メトキシエチル)(メチル)アミノ)エトキシ)ベンジリデン)-1-メチルヒドラジニル)シクロペンタン-1-カルボキシレート(フリー体)のトルエン溶液(131.9g)を得た。濃縮液に液量が330mLになるようにトルエンを加え、室温にて終夜保管した。13時間後に反応容器の外温を50℃に設定し、反応液の内温48℃にてシュウ酸のメタノール溶液(シュウ酸11.6gを27.6mLのメタノールに溶解して調製)を加え、さらに20分間撹拌した。反応容器の外温を25℃に設定し、得られた溶液にn-ヘプタン(138mL)を加えた。反応容器の外温を0℃に設定し、反応液の内温1℃以下にてさらに1.5時間撹拌した。析出した固体を濾取し、得られた湿性粉末をトルエン(166mL)で洗浄した。この湿性粉末を減圧下外温40℃で乾燥して、目的物(56.7g)を得た(収率:85%)。
測定方法:HPLC 方法A、保持時間:6.7分
1H-NMR(DMSO-D6)δ:7.45-7.41(1H,m),7.27(1H,s),7.06(1H,t,J=8.2Hz),4.42(2H,t,J=5.3Hz),3.65(2H,t,J=5.3Hz),3.61(3H,s),3.42(2H,t,J=5.0Hz),3.29(3H,s),3.22(2H,t,J=5.3Hz),2.85(3H,s),2.76(3H,s),2.28-2.23(2H,m),2.17-2.11(2H,m),1.73-1.67(4H,m)。
測定方法:HPLC 方法A、保持時間:4.3分。
測定方法:HPLC 方法A、保持時間:7.5分
1H-NMR(DMSO-D6)δ:11.01(1H,s),9.53(1H,s),8.47(1H,s),8.25(1H,d,J=8.6Hz),8.22-8.21(1H,m),7.96-7.94(1H,m),3.42(2H,s)。
測定方法:HPLC 方法A、保持時間:7.5分。
実施例3と参照例5との比較を以下に示した。化合物の純度はHPLC分析により算出した。
(実施例4-1)1-((2-(2,3-ジフルオロ-4-(2-((2-メトキシエチル)(メチル)アミノ)エトキシ)フェニル)メチル)-1-メチル-2-(3-オキソ-3-((4-(トリフルオロメチル)-2-(6-(トリフルオロメチル)ピリミジン-4-イル)フェニル)アミノ)プロパノイル)ヒドラジニル)シクロペンタン-1-カルボン酸メチルの製造
測定条件:HPLC 方法B、HPLC保持時間:3.9分。
1H NMR(500MHz,DMSO-D6)δ:11.15(1H,s),9.5
1(1H,d,J=0.9Hz),8.54(1H,d,J=1.4Hz),8.32(1H,d,J=8.6Hz),8.25(1H,d,J=1.4Hz),7.97-7.95(1H,m),7.00-6.98(1H,m),6.93-6.91(1H,m),4.70(1H,d,J=16.3Hz),4.41(1H,d,J=16.3Hz),4.14-4.08(2H,m),3.96(1H,d,J=15.4Hz),3.69(1H,d,J=15.4Hz),3.61(3H,s),3.40(2H,t,J=5.9Hz),3.22(3H,s),2.76(2H,t,J=5.7Hz),2.59-2.57(5H,m),2.27(3H,s),2.04-1.97(2H,m),
1.85-1.48(6H,m)。
測定条件HPLC 方法A、保持時間:8.4分。
測定条件:HPLC 方法A、保持時間:9.4分。
測定条件:HPLC 方法A、保持時間 9.4分。
1H-NMR(CDCl3)δ:16.60(1H,s),12.82(1H,s),11.40(1H,brs),9.60(1H,s),8.49(1H,d,J=8.6Hz),7.95(1H,s),7.90(1H,d,J=1.5Hz),7.79(1H,dd,J=8.6,1.5Hz),7.75(2H,d,J=8.0Hz),7.16(2H,d,J=8.0Hz),7.06(1H,dd,J=7.6,7.7Hz),6.73(1H,dd,J=7.6,7.8),5.05(1H,d,J=14.3Hz),4.56(2H,m),4.21(1H,d,J=14.3Hz),3.86(2H,m),3.80(1H,m),3.60(1H,m),3.54(1H,m),3.40(1H,m),3.36(3H,s),3.08(3H,d,J=4.3Hz),2.48(3H,s),2.35(3H,s),2.16(1H,m),1.74(2H,m),1.57(1H,m),1.53(1H,m),1.48(2H,m),1.31(1H,m)。
7-[[2,3-ジフルオロ-4-[2-[2-メトキシエチル(メチル)アミノ]エトキシ]フェニル]メチル]-10-ヒドロキシ-6-メチル-8-オキソ-N-[4-(トリフルオロメチル)-2-[6-(トリフルオロメチル)ピリミジン-4-イル]フェニル]-6,7-ジアザスピロ[4,5]デカ-9-エン-9-カルボキサミド(311.6mg)にp-トルエンスルホン酸エタノール溶液(0.5M、0.935mL)を加え、60℃で溶解させた。その後、室温にて撹拌しながら、種結晶を添加すると、30分後に多くの結晶の析出が認められた。24時間後、得られた結晶を濾取し、湿性粉末の粉末X線回折測定を実施した。測定結果を図2に示す。さらに1時間室温にて放置後、乾燥粉末の粉末X線回折測定を実施した。後者の粉末は既知の結晶形と同じものであるが、前者は異なる粉末X線回折パターンを示しており、乾燥工程にて速やかに結晶転移が生じることが確認された。収量は298.0mgであった。
乾燥粉末の2θ値:4.9°、9.4°、9.9°、15.2°、15.9°、18.9°、および22.7°(±0.2°)に回折ピークを有していた。
サミド p-トルエンスルホン酸塩の製造
7-[[2,3-ジフルオロ-4-[2-[2-メトキシエチル(メチル)アミノ]エトキシ]フェニル]メチル]-10-ヒドロキシ-6-メチル-8-オキソ-N-[4-(トリフルオロメチル)-2-[6-(トリフルオロメチル)ピリミジン-4-イル]フェニル]-6,7-ジアザスピロ[4,5]デカ-9-エン-9-カルボキサミド(311.9mg)に、p-トルエンスルホン酸エタノール溶液(0.5M、0.936mL)を加え、60℃で溶解させた。その後、室温にて撹拌しながら、種結晶とn-ヘプタン(0.936mL)を添加すると、30分後に多くの結晶の析出が認められた。さらにn-ヘプタン(1.871mL)を添加し24時間後、得られた結晶を濾取し、湿性粉末の粉末X線回折測定を実施した。さらに1時間室温にて放置後、乾燥粉末のX線回折測定を実施した。測定結果を図4に示す。乾燥粉末の粉末X線回折パターンは、1型結晶と同じものであるが、湿性粉末の粉末X線回折パターンは、乾燥粉末とは異なる粉末X線回折パターンを示しており、乾燥工程にて速やかに結晶の相転移が生じることが確認された。収量は257.1mgであった。
119.6℃(外挿点)および130.2℃(ピークトップ)に融解に起因するピークを示した。
Claims (14)
- 回収前の固体を含有する混合物に貧溶媒をさらに添加することを含む、請求項1に記載の方法。
- 前記貧溶媒が、ヘキサンまたはヘプタンを含む溶媒;ヘキサンおよびヘプタンから選択される溶媒;またはヘキサンおよびへプタンを含む混合溶媒である、請求項1または2に記載の方法。
- 前記p-トルエンスルホン酸塩の1型結晶の乾燥粉末が、粉末X線回折において、回折角2θとして、4.9°、9.4°、9.9°、15.2°、15.8°、18.9°および22.6°(±0.5°)から選択される、少なくとも1つのピークを含む粉末X線回折パターンを有する、請求項1~3のいずれか1項に記載の方法。
- 前記p-トルエンスルホン酸塩の1型結晶の乾燥粉末が、粉末X線回折において、回折角2θとして、4.9°、9.4°、15.8°、18.9°および22.6°(±0.5°)から選択される、少なくとも1つのピークを含む粉末X線回折パターンを有する、請求項1~4のいずれか1項に記載の方法。
- 前記p-トルエンスルホン酸塩の1型結晶の乾燥粉末が、粉末X線回折において、回折角2θとして、15.8°(±0.5°)のピークを含む粉末X線回折パターンを有する、請求項1~5のいずれか1項に記載の方法。
- 前記p-トルエンスルホン酸塩の1型結晶の乾燥粉末が、粉末X線回折において、回折角2θとして、4.9°、9.4°、9.9°、15.2°、15.8°、18.9°および22.6°(±0.2°)から選択される、少なくとも1つのピークを含む粉末X線回折パターンを有する、請求項1~6のいずれか1項に記載の方法。
- X1がハロゲン原子である、請求項8に記載の方法。
- X2が塩素原子である、請求項8または9に記載の方法。
- パラジウム触媒が、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)ジクロリド錯体、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錯体、ビス(トリフェニルホスフィン)パラジウム(II)ジクロリド、ジクロロビス(トリシクロヘキシルホスフィン)パラジウム(II)、[1,3-ビス(2,6-ジイソプロピルフェニル)イミダゾール-2-イリデン](3-クロロピリジル)パラジウム(II)ジクロリド、(1,3-ビス(2,6-ジイソプロピルフェニル)イミダゾリデン)(3-クロロピリジル)パラジウム(II)ジクロリド、および[1,3-ビス(2,6-ジ-3-ペンチルフェニル)イミダゾール-2-イリデン](3-クロロピリジル)パラジウム(II)ジクロリドからなる群から選択される、請求項8~10のいずれか1項に記載の方法。
- ジカルボン酸イミドアルカリ金属塩が、フタルイミドカリウム、またはフタルイミドナトリウムである、請求項8~11のいずれか1項に記載の方法。
- マロン酸誘導体が、メルドラム酸、ジアルキルマロン酸、およびマロン酸からなる群から選択される、請求項13に記載の方法。
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| CA3221272A CA3221272A1 (en) | 2021-06-08 | 2022-06-08 | Method for producing dihydropyridazine-3,5-dione derivative |
| EP22820241.2A EP4353718A4 (en) | 2021-06-08 | 2022-06-08 | METHOD FOR THE PREPARATION OF A DIHYDROPYRIDAZINE-3,5-DIONE DERIVATIVE |
| JP2023527885A JP7665747B2 (ja) | 2021-06-08 | 2022-06-08 | ジヒドロピリダジン-3,5-ジオン誘導体の製造方法 |
| US18/567,432 US20250115585A1 (en) | 2021-06-08 | 2022-06-08 | Method for producing dihydropyridazine-3,5-dione derivative |
| IL309054A IL309054A (en) | 2021-06-08 | 2022-06-08 | METHOD FOR MANUFACTURE OF DIHYDROPYRIDAZINE-3,5-DIONE DERIVATIVE |
| BR112023023841A BR112023023841A2 (pt) | 2021-06-08 | 2022-06-08 | Método para produzir derivado de di-hidropiridazina-3,5-diona |
| MX2023013898A MX2023013898A (es) | 2021-06-08 | 2022-06-08 | Metodo para producir un derivado de dihidropiridazina-3,5-diona. |
| AU2022291310A AU2022291310A1 (en) | 2021-06-08 | 2022-06-08 | Method for producing dihydropyridazine-3,5-dione derivative |
| KR1020237045198A KR20240019168A (ko) | 2021-06-08 | 2022-06-08 | 다이하이드로피리다진-3,5-다이온 유도체의 제조 방법 |
| CN202280041402.9A CN117460727A (zh) | 2021-06-08 | 2022-06-08 | 二氢哒嗪-3,5-二酮衍生物的制造方法 |
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| EP (1) | EP4353718A4 (ja) |
| JP (1) | JP7665747B2 (ja) |
| KR (1) | KR20240019168A (ja) |
| CN (1) | CN117460727A (ja) |
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| CA (1) | CA3221272A1 (ja) |
| IL (1) | IL309054A (ja) |
| MX (1) | MX2023013898A (ja) |
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- 2022-06-02 AR ARP220101463A patent/AR126060A1/es unknown
- 2022-06-08 EP EP22820241.2A patent/EP4353718A4/en active Pending
- 2022-06-08 CA CA3221272A patent/CA3221272A1/en active Pending
- 2022-06-08 KR KR1020237045198A patent/KR20240019168A/ko active Pending
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- 2022-06-08 BR BR112023023841A patent/BR112023023841A2/pt not_active Application Discontinuation
- 2022-06-08 WO PCT/JP2022/023068 patent/WO2022260062A1/ja not_active Ceased
- 2022-06-08 JP JP2023527885A patent/JP7665747B2/ja active Active
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| TW202313590A (zh) | 2023-04-01 |
| KR20240019168A (ko) | 2024-02-14 |
| AU2022291310A1 (en) | 2024-01-18 |
| CA3221272A1 (en) | 2022-12-15 |
| BR112023023841A2 (pt) | 2024-01-30 |
| US20250115585A1 (en) | 2025-04-10 |
| CN117460727A (zh) | 2024-01-26 |
| JP7665747B2 (ja) | 2025-04-21 |
| JPWO2022260062A1 (ja) | 2022-12-15 |
| IL309054A (en) | 2024-02-01 |
| EP4353718A1 (en) | 2024-04-17 |
| MX2023013898A (es) | 2023-12-11 |
| EP4353718A4 (en) | 2025-11-05 |
| AR126060A1 (es) | 2023-09-06 |
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