Process for N-acylation of 7 amino cephem compounds
申请人:Meiji Seika Kaisha, Ltd.
公开号:US03988326A1
公开(公告)日:1976-10-26
A compound having the formula: ##EQU1## and a 7-amihocephalosporanic acid derivative having the formula: ##SPC1## Are reacted in a homogeneous aqueous solution of the reactants to prepare a reaction of the formula: ##SPC2## In the formulas, R may be H or other defined substituents such as carboxyl group; R.sub.1 is H, an alkyl of 1-4 carbons or other defined substitents; R.sub.2 is H or phenyl or when taken together with R.sub.1 form a defined cyclicradical; R.sub.3 is H or other defined substituents and M is an alkali metal cation, ammonium cation or H.