Commercial Synthesis of Cefprozil: Development and Control of Process Impurity
摘要:
A process impurity, ethoxycarbonylcefprozil (9), formed in the synthesis of cefprozil (1) was controlled with addition of a catalytic amount of methanesulfonic acid.
[EN] PROCESS FOR THE PREPARATION OF 7-AMINO (P-HYDROXYPHENYLGLYCLYAMIDO) CEPHEM COMPOUNDS [FR] PROCEDE DE PREPARATION DE COMPOSES DE 7-AMINO(P-HYDROXYPHENYLGLYCYL) CEPHEM