申请人:Parke, Davis & Company
公开号:US04111923A1
公开(公告)日:1978-09-05
New octapeptides having the formula Prot Grp-R-Trp-Ser-Tyr-R.sub.2 -Leu-Arg-Pro-R.sub.3 ; salts thereof; wherein R is Gln, Gln (bzl), His (bzl), Ser (bzl), Pro, Leu, Tyr (bzl), Ile, Cys (bzl) or Phe, R.sub.2 is D-Phe, D-Ala, D-Leu, D-Trp, D-Tyr, D-Tyr (Me), D-Ser, D-Met, D-Arg, D-Val, D-His, D-Gln, D-Phs, D-Thr, D-Pro, D-Me.sub.5 Phe or D-Asn and R.sub.3 is NH.sub.2, NH(lower alkyl), N-(lower alkyl).sub.2, NH-benzyl, NHCH.sub.2 CH.sub.2 N-(lower alkyl).sub.2 or NH-CH.sub.2 CH.sub.2 SO.sub.2 NH-benzyl; methods for their production; certain peptide intermediates and their salts used in the production thereof; and the use of said octapeptides as luteinizing hormone releasing factor antagonists.
新的八肽具有以下公式 Prot Grp-R-Trp-Ser-Tyr-R.sub.2 -Leu-Arg-Pro-R.sub.3;及其盐;其中 R 为 Gln、Gln (bzl)、His (bzl)、Ser (bzl)、Pro、Leu、Tyr (bzl)、Ile、Cys (bzl) 或 Phe,R.sub.2 为 D-Phe、D-Ala、D-Leu、D-Trp、D-Tyr、D-Tyr (Me)、D-Ser、D-Met、D-Arg、D-Val、D-His、D-Gln、D-Phs、D-Thr、D-Pro、D-Me.sub.5 Phe 或 D-Asn,R.sub.3 为 NH.sub.2、NH(较低烷基)、N-(较低烷基).sub.2、NH-benzyl、NHCH.sub.2 CH.sub.2 N-(较低烷基).sub.2 或 NH-CH.sub.2 CH.sub.2 SO.sub.2 NH-benzyl;它们的生产方法;用于生产中的某些肽中间体及其盐;以及将该八肽用作促黄体生成激素释放因子拮抗剂。