Process for preparing amino substituted .beta.-lactam antibiotic

Details Process for preparing amino substituted .beta.-lactam antibiotic Process for preparing amino substituted .beta.-lactam antibiotic

1974-07-11

1976-06-08

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260243C, 424271, 424246, C07D49904, C07D50102

Patent

active

039622142

ABSTRACT:
6-Acylamino-6-alkylthiopenicillanic or 7-acylamino-7-alkylthiocephalosporanic acids or esters are reacted at a temperature between -80.degree. and -25.degree.C. with one equivalent of halogen to provide an intermediate halosulfonium halide which is reacted with a C.sub.1 -C.sub.4 alkyl amine, a C.sub.1 -C.sub.4 dialkylamine or ammonia in an appropriate solvent. The ester group is removed to provide the 6-aminopenicillanic or 7-aminocephalosporanic acid.

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