CRYSTALLINE FORMS OF PEMETREXED DIACID AND PROCESSES FOR THE PREPARATION THEREOF

摘要

Provided are crystalline forms of N-[4-[2-(2-amino-4,7-dihydro-4-oxo-1H- pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-L-glutamic acid, pemetrexed diacid, and processes for the preparation thereof.