Polypeptide, a process for preparing the same, a pharmaceutical composition containing said polypeptide as well as the use thereof

摘要

There is disclosed a novel polypeptide, a process for preparing the same, a pharmaceutical composition containing the same as well as the use thereof. The novel polypeptide which is useful as an analgesic corresponds to the formula given below: …… wherein the meaning of R<1> and R<2>, A, B, C, D, E, and F is the same defined in the claims.