申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0191507A2
公开(公告)日:1986-08-20
2-Oxyimino-3-oxobutyric acid derivatives of formula
wherein
X2 is halogen or hydrogen.
R2 is carboxy(lower)alkyl or protected carboxy(lower)-alkyl. and
R8 is carboxy or protected carboxy, and the and processes for preparation thereor.
式中X2为卤素或氢,R2为羧基(低级)烷基或受保护的羧基(低级)烷基,R8为羧基或受保护的羧基的2-氧亚氨基-3-氧代丁酸衍生物及其制备方法。