申请人:TANABE SEIYAKU CO., LTD.
公开号:EP0376724A3
公开(公告)日:1991-09-25
Cephalosporin compounds of the formula:
wherein R1 is amino or protected amino; R2 is substituted or unsubstituted heterocyclic group having 1 - 3 hetero atoms selected from oxygen and sulphur; R3 is carboxyl or protected carboxyl; R4 is nucleophilic compound residue; R5 is carboxyl, protected carboxyl and -COO-, a pharmaceutically acceptable salt thereof and their synthetic intermediate of the formula:wherein R11 is amino or protected amino; R2 is substituted or unsubstituted heterocyclic group having 1 - 3 hetero atoms selected from oxygen and sulfur; R3 is carboxyl or protected carboxyl; -COOY is carboxyl or protected carboxyl. Said cephalosporin compound is useful as antibacterial agent.
头孢菌素类化合物,其通式为:其中R1为氨基或保护的氨基;R2为含有1至3个选自氧和硫的杂原子的取代或未取代的杂环基团;R3为羧基或保护的羧基;R4为亲核化合物残基;R5为羧基、保护的羧基和-COO-,以及它们的药学上可接受的盐和其合成中间体的通式:其中R11为氨基或保护的氨基;R2为含有1至3个选自氧和硫的杂原子的取代或未取代的杂环基团;R3为羧基或保护的羧基;-COOY为羧基或保护的羧基。所述头孢菌素化合物可作为抗菌剂使用。