申请人:Shionogi & Co., Ltd.
公开号:US04731361A1
公开(公告)日:1988-03-15
An oral antibacterial, 7beta-[(Z)-2-(2-aminothiazol-4-yl)-2-alkenoylamino]-3-cephem-4-carboxylic acid pharmaceutically acceptable ester represented by the following formula: ##STR1## (wherein R is amino or protected amino, R.sup.1 is straight, branched, or cyclic alkyl optionally substituted by alkoxy, R.sup.2 is hydrogen or a 3-substitutent of cephalosporins, R.sup.3 is a pharmaceutically acceptable ester group, and X is sulfur or sulfinyl).
一种口服抗菌药物,化学式表示为7beta-[(Z)-2-(2-氨基噻唑-4-基)-2-烯酰氨基]-3-头孢烯-4-羧酸药学上可接受的酯,其化学式如下:##STR1##(其中R为氨基或保护的氨基,R.sup.1为直链、支链或环状烷基,可选地被烷氧基取代,R.sup.2为氢或头孢菌素的3-取代基,R.sup.3为药学上可接受的酯基,X为硫或亚砜)。