A NOVEL CRYSTALLINE FORM OF DISODIUM N-[4-[2-(2-AMINO-4,7-DIHYDRO-4-OXO-3H-PYRROLO[2,3-D]-PYRIMIDIN-5-YL)ETHYL]BENZOYL]-L-GLUTAMIC ACID SALT AND PROCESSES THEREFOR

摘要

The invention relates to the field of organic and pharmaceutical chemistry and provides an improved process for preparing the multi-targeted antifolate N-[4-[2-(2-amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]-pyrimidin-5-yl)ethyl]benzoyl]-L-glutamic acid and crystals thereof.