申请人:Dainippon Sumitomo Pharma Co., Ltd.
公开号:US07115595B2
公开(公告)日:2006-10-03
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 Streptococcus 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) Haemophilus influenzae.
具有取代苯基或取代噻吩基直接连接到碳青霉烷核的3位的碳青霉烷化合物,如下式所示:
其中,环E为苯环或噻吩环;R1为可选的OH取代的C1-3烷基;R2和R3分别表示H、可选取代的低级烷基等;R为H,或在生物体内水解生成羧基等的基团;X为O或S;Y表示H、低级烷基等,或其药学上可接受的盐,以及含有该化合物作为活性成分的药物。这些化合物在广泛的革兰氏阳性和革兰氏阴性细菌中表现出优异的抗菌活性,特别是对于最近年来频繁分离的耐青霉素的肺炎链球菌(PRSP)和已经因β-内酰胺酶非产生性的氨苄青霉素耐药(BLNAR)等原因而获得对现有β-内酰胺类抗生素的耐药性的流感嗜血杆菌具有重要的临床意义。