申请人:Sumitomo Pharmaceuticals Company, Limited
公开号:US04774319A1
公开(公告)日:1988-09-27
A process for the manufacture of a polypeptide (I) having the formula: ##STR1## which comprises steps of: (a) coupling, successively and in the order of the sequence of the polypeptide (I), the four protected fragments A, B, C and D or five protected fragments A, B, C, E and F, said fragment A by the formula, Leu-Gin-Asp-Ile-Met-Ser-Arg-NH.sub.2 said fragment B by the formula, Gln-Leu-Ser-Ala-Arg-Lys-Leu said fragment C by the formula, Arg-Lys-Val-Leu-Gly said fragment D by the formula, Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr said fragment E by the formula, Ile-Phe-Thr-Asn-Ser-Tyr and said fragment F by the formula, Tyr-Ala-Asp-Ala being represented, respectively, and (b) eliminating, at the end of sequence, all the protecting groups to provide the polypeptide (I) which is active on the stimulation of the release of the growth hormone and thus is very useful as medicine for treatment of growth hormone deficiency disease and the like.
一种制造多肽(I)的方法,其化学式为:##STR1## 包括以下步骤:(a) 按照多肽(I)的序列顺序,依次耦合四个保护的片段A、B、C和D或五个保护的片段A、B、C、E和F,其中片段A的化学式为Leu-Gin-Asp-Ile-Met-Ser-Arg-NH.sub.2,片段B的化学式为Gln-Leu-Ser-Ala-Arg-Lys-Leu,片段C的化学式为Arg-Lys-Val-Leu-Gly,片段D的化学式为Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr,片段E的化学式为Ile-Phe-Thr-Asn-Ser-Tyr,片段F的化学式为Tyr-Ala-Asp-Ala,分别表示,以及(b) 在序列结束时消除所有保护基,以提供对促进生长激素释放活性的多肽(I),因此非常有用作为治疗生长激素缺乏症等疾病的药物。