The invention provides a series of novel substituted peptide derivatives of the formulae la, Ib and Ic (set out hereinafter) and pharmaceutically acceptable salts thereof, in which the radicals A, R1, R2 and R4-R9 have the meanings defined in the following specification. The compounds of formulae la, Ib, and Ic are inhbitors of human leukocytic elastase. The invention also provides pharmaceutical compositions containing a compound of formula la, Ib or Ic, or a pharmaceutically acceptable salt thereof and processes and intermediates for the manufacture of compounds of formulae la, Ib, and Ic.
本发明提供了一系列新颖的式la、Ib和Ic(如下所述)取代肽衍
生物及其药学上可接受的盐,其中自由基A、R1、R2和R4-R9具有以下说明书中定义的含义。 式la、Ib和Ic化合物是人白细胞
弹性蛋白酶的
抑制剂。 本发明还提供了含有式la、Ib或Ic化合物或其药学上可接受的盐的药物组合物,以及用于制造式la、Ib和Ic化合物的工艺和中间体。