申请人:Beecham Group p.l.c.
公开号:EP0404296A1
公开(公告)日:1990-12-27
A compound of formula (I), or a pharmaceutically acceptable salt thereof:
wherein
R₁ is hydroxy or amino;
R₂ is hydrogen or amino;
R₃ is hydrogen, hydroxymethyl or acyloxymethyl;
R₄ is hydrogen or (when R₃=H and Z is a bond or CH₂) hydroxy, acyloxy, hydroxymethyl or acyloxymethyl;
Z is a bond, or a group CHR₈ wherein R₈ is hydrogen, or (when R₃=R₄=H), R₈ is hydroxy, acyloxy, hydroxymethyl or acyloxymethyl;
R₅ is a group of formula:
wherein
R₆ and R₇ are independently selected from hydrogen, C₁₋₆ alkyl and optionally substituted phenyl.
式 (I) 的化合物或其药学上可接受的盐:
其中
R₁ 是羟基或氨基;
R₂ 是氢或氨基
R₃ 是氢、羟甲基或酰氧基甲基;
R₄ 是氢或(当 R₃=H 且 Z 是键或 CH₂ 时)羟基、酰氧基、羟甲基或酰氧基甲基;
Z 是键,或一个基团 CHR₈,其中 R₈ 是氢,或(当 R₃=R₄=H 时),R₈ 是羟基、酰氧基、羟甲基或酰氧基甲基;
R₅ 是式中的基团:
其中
R₆ 和 R₇ 独立选自氢、C₁₋₆ 烷基和任选取代的苯基。