crystalline methanol solvat of sodium - 7 - (d - 2 - hydroxy - 2 - phenylacetamido) - 3 - (1 - methyl - 1h - tetrazol - 5 - ylthiomethyl) - 3 - cephem - 4 - carboxylat and its manufacture method

摘要

Sodium 7-(D-2-hydroxy-2-phenylacetamido)-3-(1-methyl-1H- tetrazole-5- ylthiomethyl)- 3-cephem-4-carboxylate is obtained as a pharmaceutically acceptable crystalline anhydrate via crystalline methanolate or crystalline monohydrate forms.