Methods of using hydrates and polymorphs of 4-[[(7R)-8-cyclopentyl-7-ethyl-5,6,7,8-tetrahydro-5-methyl-6-oxo-2-pteridinyl]amino]-3-methoxy-N-(1-methyl-4-piperidinyl)-benzamide

摘要

Disclosed are hydrates and polymorphs of 4- [[(7R)-8-cyclopentyl-7 -ethyl-5,6,7,8-tetrahydro-5-methyl-6-oxo-2-pteridinyl]amino]-3-methoxy-N-(1-methyl-4-piperidinyl)-benzamide: as well as, processes for preparing them and their use as pharmaceutical compositions with antiproliferative activity.