Postostatin, a new physiologically active substance represented by (I), can be isolated from the culture medium of an actinomycete belonging to the genus Streptomyces. It is a peptide compound having a new structure wherein a keto group is present in the peptide chain and it has a potent endopeptidase inhibitory activity. A postostatin-related compound having a keto group in the peptide chain can he synthesized chemically and this compound has a similar endopeptidase inhibitory activity.
Postostatin 是一种新的生理活性物质,以(I)为代表,可以从属于链霉菌属的放线菌的培养液中分离出来。它是一种具有新结构的
多肽化合物,肽链中含有一个酮基,具有强效的内肽酶抑制活性。一种肽链中含有酮基的后肽相关化合物可以通过
化学方法合成,这种化合物具有类似的内肽酶抑制活性。