Novel penicillin and cephalosporin compounds, a process for preparing the same and antibacterial composition containing the novel compounds
申请人:Eisai Co., Ltd.
公开号:EP0062328A2
公开(公告)日:1982-10-13
A compound represented by the formula:
wherein R, is hydrogen or methoxy; R2 is hydrogen or hydroxy; R is
wherein R3 and R4 are hydroxy or acyloxy, Y is oxygen, sulfur or N-R5 wherein R5 is hydrogen or lower alkyl, and Z is sulfur or N-R5 wherein R5 has the same meanings as defined above; and X is
wherein R6 is acyloxy or nitrogen-containing hetero- cyclicthio which may have substituent(s), a pharmaceutically acceptable salt thereof, and a carboxylic ester thereof, a process for preparing the same and antibacterial composition containing the novel compounds.
This compound has improved antibacterial activity against Kleb. pneumoniae and Pseid. aeruginosa.
一种由式表示的化合物:其中 R 是氢或甲氧基;R2 是氢或羟基;R 是其中 R3 和 R4 是羟基或酰氧基;Y 是氧、硫或 N-R5(其中 R5 是氢或低级烷基);Z 是硫或 N-R5(其中 R5 具有与上述定义相同的含义);X 是其中 R6 是酰氧基或含氮杂环硫基(可具有取代基)、其药学上可接受的盐和其羧酸酯,以及制备上述化合物和含有该新型化合物的抗菌组合物的工艺。 该化合物对肺炎克雷伯氏菌和绿脓杆菌具有更好的抗菌活性。