申请人:Amano Pharmaceutical Co., Ltd.
公开号:US04530836A1
公开(公告)日:1985-07-23
Novel peptides represented by the following formula R.sub.1 --A--B--C--D--Trp--Met--Y (1) wherein; R.sub.1 denotes pGlu, X--R.sub.2 --CO--, X being carboxyl or amino and R.sub.2 being lower alkylene of 1-6 carbon atoms, or ##STR1## A denotes Asp, Ala, or merely a chemical bond; B denotes Tyr(SO.sub.3 H) or Phe(NHSO.sub.3 H); C denotes Met or merely a chemical bond; D denotes Gly, D--Ala, or D--Trp; and Y denotes NH.sub.2, Asp--NH.sub.2, or Asp--Phe--NH.sub.2 ; with the proviso that Y is NH.sub.2 or Asp--NH.sub.2 when R.sub.1 is pGlu, HOOC--R.sub.2 --CO--, or ##STR2## B is Tyr(SO.sub.3 H), C is Met, and D is Gly, and pharmacologically acceptable salts thereof.
以下为式子R.sub.1 --A--B--C--D--Trp--Met--Y(1)所代表的新型肽,其中:R.sub.1代表pGlu,X--R.sub.2--CO--,X代表羧基或氨基,R.sub.2代表1-6个碳原子的低级烷基,或者##STR1## A代表Asp,Ala或仅为化学键;B代表Tyr(SO.sub.3H)或Phe(NHSO.sub.3H);C代表Met或仅为化学键;D代表Gly,D--Ala或D--Trp;Y代表NH.sub.2,Asp--NH.sub.2或Asp--Phe--NH.sub.2;但前提是当R.sub.1为pGlu,HOOC--R.sub.2--CO--或者##STR2## B为Tyr(SO.sub.3H),C为Met,D为Gly时,Y为NH.sub.2或Asp--NH.sub.2,且其药理学上可接受的盐。