A polypeptide compound of the following general formula :
wherein
R¹ ishydrogen,
R² isacyl group,
R³ ishydroxy or acyloxy,
R⁴ ishydroxy or hydroxysulfonyloxy,
R⁵ ishydrogen or lower alkyl which may have one or more suitable substituent (s), and
R⁶ ishydrogen, hydroxy or acyl (lower) alkylthio and a pharmaceutically acceptable salt thereof,
processes for their preparation and pharmaceutical compositions comprising them as an active ingredient.
通式如下的
多肽化合物:
其中
R¹ 是氢
R² 是酰基
R³ 是羟基或酰氧基
R⁴ 是羟基或羟基磺酰氧基、
R⁵ 是氢或低级烷基,可带有一个或多个合适的取代基,以及
R⁶ 是氢、羟基或酰基(低级)烷
硫基及其药学上可接受的盐、
它们的制备工艺和含有它们作为活性成分的药物组合物。