Mercapto-bicycloheterocyclics useful as intermediates for penem
申请人:Daiichi Seiyaku Co., Ltd.
公开号:US04962202A1
公开(公告)日:1990-10-09
New derivatives of penem and pharmaceutically acceptable salt thereof are herein disclosed; these compounds being useful as an antibacterial agent which has an extremely wide antibacterial spectrum, exhibits a high sensitivity to bacteria resistant to conventional penicillins and cephalosporing antibiotics and is excellent in its physico-chemical stability, solubility to water and biological stability, in particular, stability to decomposition by enzyme such as dehydropeptidase I in kidney, .beta.-lactamase; these derivatives of penem being able to be prepared by reacting 2-substituted sulfinyl derivative of penem with a thiol compound and then optionally removing protective group(s) and further alkylating the reaction product or vice versa.
New derivatives of penem and pharmaceutically acceptable salt thereof are herein disclosed; the compouinds being useful as an antibacterial agent which has a high sensibility to