Compounds of the formula I A--R--NH--CHR.sup.1 --(CH.sub.2).sub.a --NHC(.dbd.NH)NH.sub.2 in which R.sup.1 is the cyanide group, R is Pro or D--Phe--Pro, A is a hydrogen atom or a protective group customary in peptide chemistry, and a is an integer from 2 to 5, preferably 3 or 4, which are able to inhibit serine proteases, and a process for their preparation, are described. Agents containing compounds of this type can be used as anticoagulants.
本发明涉及一种化合物,其
化学式为IA--R--NH--CHR.sup.1--(CH.sub.2).sub.a--NHC(.dbd.NH)NH.sub.2,其中R.sup.1是
氰基,R是Pro或D-Phe-Pro,A是
氢原子或肽
化学中惯用的保护基,a是从2到5的整数,优选3或4,这些化合物能够抑制
丝氨酸蛋白酶,并且还提供了一种制备它们的方法。含有这种化合物的药剂可以用作抗凝剂。