Oxygen-containing hererocyclic compound, processes for their preparation and pharmaceutical compositions comprising them
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0346511A1
公开(公告)日:1989-12-20
A compound of the formula :
wherein
R¹ is hydrogen or lower alkyl,
R² is carboxy(lower)alkyl or protected carboxy(lower)alkyl and
R³ is -CH₂NH-R⁴, -CH=N-R⁴ or -CH₂-R⁵
in which
R⁴ is acyl, acylamino, heterocyclic amino, heterocyclic(lower)alkyl or ar(lower)alkoxy and
R⁵ is acyloxy or heterocyclic(lower)alkoxy and X is -O- or -CH₂-,
or pharmaceutically acceptable salt thereof,
processes for their preparation and pharmaceutical compositions comprising them as an active ingredient.
一种化合物的公式为:其中R¹为氢或较低的烷基,R²为羧基(较低)烷基或保护羧基(较低)烷基,R³为-CH₂NH-R⁴、-CH=N-R⁴或-CH₂-R⁵,其中R⁴为酰基、酰胺基、杂环氨基、杂环(较低)烷基或芳基(较低)烷氧基,R⁵为酰氧基或杂环(较低)烷氧基,X为-O-或-CH₂-,或其药学上可接受的盐,以及其制备方法和包含它们作为活性成分的药物组合物。