申请人:Rhone-Poulenc Industries
公开号:US04178290A1
公开(公告)日:1979-12-11
.alpha.-Amino(1,3-dithiin-5-yl)-acetic acid in the D-, L-, or D,L-form and in which the amino radical is free or protected by tert.-butoxycarbonyl or 2,2,2-trichloroethoxycarbonyl is a useful intermediate in the preparation of cephalosporins having valuable antibacterial activity.
α-氨基(1,3-二硫杂环戊-5-基)-乙酸在D型、L型或D,L型形式中,其中氨基自由或被tert.-丁氧羰基或2,2,2-三氯乙氧羰基保护,是制备具有有价值抗菌活性的头孢菌素的有用中间体。