CRYSTALLINE FORMS OF DIMETHOXY DOCETAXEL AND METHODS FOR PREPARING THE SAME

摘要

The invention relates to anhydrides, solvates and ethanol hetero-solvates and hydrates of dimethoxy docetaxel or (2R,3S)-3-tert-butoxycarbonylamino-2-hydroxy-3-phenyl-propionate of 4-acetoxy-2alpha-benzoyloxy-5beta,20-epoxy-1-hydroxy-7beta, 10beta-dimethoxy-9-oxo-tax-11-ene-13alpha-yle, and to the preparation thereof.