申请人:——
公开号:US20040067929A1
公开(公告)日:2004-04-08
An oxapenem compound which is, or is capable of forming, a zwitterion of formula Ia or Ib: (Ia), (Ib) wherein R is a C
1
-C
8
branched or straight chain alkyl group which includes a protonated basic substituent. The compounds find particular use as high bioavailability &bgr;-lactamase inhibitors.
一种氧杂青霉烷化合物,其为式Ia或Ib的两性离子,或能够形成该两性离子:(Ia),(Ib),其中R为含有质子化碱基取代基的C1-C8支链或直链烷基。该化合物特别适用于高生物利用度β-内酰胺酶抑制剂。