申请人:Sumitomo Pharmaceuticals Company, Limited
公开号:EP1357123A1
公开(公告)日:2003-10-29
Carbapenem compounds having a substituted phenyl or a substituted thienyl directly attached to the 3-position of carbapenem nucleus as represented by the formula:
wherein Ring E is benzene ring or thiophene ring; R1 is optionally OH-substituted C1-3 alkyl; R2 and R3 represent each H, optionally substituted lower alkyl, etc.; R is H, or a group which is hydrolyzed in the living body to regenerate a carboxyl group, etc.; X is O or S; and Y represents H, lower alkyl, etc., or pharmaceutically acceptable salts thereof and medicaments containing said compound as the active ingredient. These compounds exhibit an excellent antibacterial activity over a broad range of Gram-positive and Gram-negative bacteria, in particular, penicillin-resistant Staphylococcus pneumoniae (PRSP) which has been isolated at an elevated frequency in recent years and thus causes a serious clinical problem, and Haemophilus influenzae which has acquired resistance against the existing β-lactam antibiotics over a wide scope due to penicillin-binding protein (PBP) mutations such as β-lactamase non-producing ampicillin-resistant (BLNAR) Haemophihis influenzae.
碳青霉烯类化合物,其碳青霉烯类核的 3 位直接连接一个取代的苯基或取代的噻吩基,如式所示:
其中,环 E 是苯环或噻吩环;R1 是任选由 OH 取代的 C1-3 烷基;R2 和 R3 分别代表 H、任选取代的低级烷基等;R 是 H 或在活体内水解生成羧基的基团等;X 是 O 或 S;Y 代表 H、低级烷基等,或其药学上可接受的盐以及含有上述化合物作为活性成分的药物。这些化合物对多种革兰氏阳性菌和革兰氏阴性菌都有很好的抗菌活性,特别是对耐青霉素肺炎葡萄球菌(PRSP)有很好的抗菌活性、以及流感嗜血杆菌(Haemophilus influenzae),由于青霉素结合蛋白(PBP)的突变,如不产生氨苄青霉素的β-内酰胺酶耐药流感嗜血杆菌(BLNAR),流感嗜血杆菌对现有的β-内酰胺类抗生素产生了广泛的耐药性。