Crystalline forms of 1-((2R,4R)-2-(1H-benzo[d]imidazol-2-yl)-1-methylpiperidin-4-yl)-3-(4-cyanophenyl)urea maleate
AssigneePfizer Inc.
InventorsEric Christian Hansen, Christopher Scott Seadeek, Anil Mahadeo Rane
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Abstract
This invention relates to a crystalline form of 1-((2R,4R)-2-(1H-benzo[d]imidazol-2-yl)-1-methylpiperidin-4-yl)-3-(4-cyanophenyl)urea maleate, and to pharmaceutical compositions thereof, to intermediates and methods for the production and isolation of such crystalline forms and compositions, and to methods of using such crystalline forms and compositions in the treatment of abnormal cell growth in mammals, especially humans.
Claims7
A crystalline form of 1-((2R,4R)-2-(1H-benzo[d]imidazol-2-yl)-1-methylpiperidin-4-yl)-3-(4-cyanophenyl)urea imidazole complex (1:1), having the structure:
A process for preparing a crystalline form of 1-((2R,4R)-2-(1H-benzo[d]imidazol-2-yl)-1-methylpiperidin-4-yl)-3-(4-cyanophenyl)urea maleate, having the structure:
- and having a powder X-ray diffraction pattern comprising peaks at 2θ values of:
- 11.6, 12.1 and 19.6 °2θ±0.2 °2θ, said process comprising treating 1-((2R,4R)-2-(1H-benzo[d]imidazol-2-yl)-1-methylpiperidin-4-yl)-3-(4-cyanophenyl)urea imidazole complex (1:1) with maleic acid.
Dependencies are inferred from the claim text.