Process for the preparation of esters of N-blocked penicillin acids
申请人:Glaxo Laboratories Limited
公开号:US03960843A1
公开(公告)日:1976-06-01
A process is described for the preparation of esters of N-blocked amino acids (such as penicillins or cephalosporins) wherein the amino acid or a salt thereof is reacted with a primary amine and nitrosating agent.