申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0193904A2
公开(公告)日:1986-09-10
Acompound of the formula:
wherein
R1 is hydrogen, amino or a protected amino group,
R2 is hydrogen, carboxy or a protected carboxy group,
R3 is hydrogen, carboxy or a protected carboxy group,
R4 is lower alkyl, amino(lower)alkyl, protected amino-(lower)alkyl, carbamoyl(lower)alkyl or protected carbamoyl(lower)alkyl,
R5 is hydrogen or lower alkyl, and
R6 is hydrogen, ar(lower)alkyl which may have suitable substituent(s) or heterocyclic(lower)alkyl, and pharmaceutically acceptable salts thereof, processes for its preparation and pharmaceutical compositions comprising it as an effective ingredient. The invention also comprises compounds of the formula
useful for preparing the above compounds and a biologically pure culture of the microorganism Discosia sp. F-11 809.
式中的化合物:
式中
R1 是氢、氨基或受保护的氨基、
R2 是氢、羧基或受保护的羧基
R3 是氢、羧基或受保护的羧基
R4 是低级烷基、氨基(低级)烷基、受保护氨基(低级)烷基、氨基甲酰基(低 级)烷基或受保护氨基甲酰基(低级)烷基、
R5 是氢或低级烷基,以及
R6 是氢、可具有适当取代基的芳基(低级)烷基或杂环(低级)烷基,及其药学上可接受的盐、其制备工艺和包含其作为有效成分的药物组合物。本发明还包括用于制备上述化合物的式
用于制备上述化合物和微生物 Discosia sp.F-11 809 的生物纯培养物。