CRYSTALLINE 3-{(3R,4R)-4-METHYL-3-METHYL-7H-PYRROLO2,3- DPYRIMIDIN-4-YL)-AMINO-PIPERIDIN-L-YL}-3-OXO-PROPINITRILE MONO CITRATE SALT AND ITS METHOD OF PREPARATION

摘要

The invention relates to anovelcrystalline form of3-{(3R, 4R)-4-methyl-3-[methyl-(7H-pyrrolo[2,3- d]pyrimidin-4-yl)-amino]-piperidin-l-yl}-3-oxo propionitrile mono citrate salt, useful as inhibitors of protein kinases, and to its method of preparation.