Polymorphs and solid forms of a pyrimidinylamino-pyrazole compound, and methods of production
AssigneeDenali Therapeutics Inc.
InventorsTravis Remarchuk, Anantha Sudhakar
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to crystalline polymorph and amorphous forms of 2-methyl-2-(3-methyl-4-(4-(methylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-1H-pyrazol-1-yl)propanenitrile or solvates, tautomers, and pharmaceutically acceptable salts or cocrystals thereof, and processes for their preparation.
Claims27
A crystalline compound, 2-methyl-2-(3-methyl-4-(4-(methylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-1H-pyrazol-1-yl)propanenitrile, selected from:
- a Form B polymorph that exhibits an X-ray powder diffraction pattern having characteristic peaks expressed in degrees 2-theta at approximately 7.0, 7.3, 16.1, 16.3, 24.1, 25.1, and 26.6;
- a Form C polymorph that exhibits an X-ray powder diffraction pattern having characteristic peaks expressed in degrees 2-theta at approximately 6.4, 15.1, 21.2, 25.7, and 27.8;
- and
- a Form D polymorph that exhibits an X-ray powder diffraction pattern having characteristic peaks expressed in degrees 2-theta at approximately 9.2, 14.0, 14.8, 19.7, and 20.0.
A crystalline compound, 2-methyl-2-(3-methyl-4-(4-(methylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-1H-pyrazol-1-yl)propanenitrile exhibiting an X-ray powder diffraction pattern having characteristic peaks expressed in ±0.3 degrees 2-theta at approximately 6.4, 15.1, 21.2, 25.7, and 27.8.
A process for preparing a crystalline polymorph comprising heating at 50° C. or above 2-methyl-2-(3-methyl-4-(4-(methylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-1H-pyrazol-1-yl)propanenitrile in methyl tert-butyl ether, cyclopentyl methyl ether, ethyl acetate, isopropyl acetate, or combinations thereof and a non-polar solvent such as heptane, and then cooling the mixture whereby a Form C crystalline polymorph that exhibits an X-ray powder diffraction pattern having characteristic peaks expressed in degrees 2-theta at approximately 6.4, 15.1, 21.2, 25.7, and 27.8 degrees 2-theta is formed.
A process for preparing a crystalline polymorph comprising heating at 50° C. or above, an anhydrous solution of 2-methyl-2-(3-methyl-4-(4-(methylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-1H-pyrazol-1-yl)propanenitrile in methyl tert-butyl ether, cyclopentyl methyl ether, ethyl acetate, isopropyl acetate, or combinations thereof, and a non-polar solvent such as heptane, and then cooling the mixture whereby a Form D crystalline polymorph that exhibits an X-ray powder diffraction pattern having characteristic peaks expressed in degrees 2-theta at approximately 9.2, 14.0, 14.8, 19.7, and 20.0 degrees 2-theta is formed.
Dependencies are inferred from the claim text.