Synthesis of hpGRF (Somatocrinin) in liquid phase and intermediate
peptides
    86.
    发明授权
    Synthesis of hpGRF (Somatocrinin) in liquid phase and intermediate peptides 失效
    液相中的hpGRF(somatocrinin)和中间体肽的合成

    公开(公告)号:US4581168A

    公开(公告)日:1986-04-08

    申请号:US580287

    申请日:1984-02-17

    摘要: The invention relates to synthesis of hpGRF (Somatocrinin) in liquid phase and to intermediate peptides, comprising:--coupling, one after the other and in the order of the sequence of the GRF, the fragments in which: (a) the side acid functions of the aspartic and glutamic acids and the side amine function of the lysine are protected by protector groups stable in the conditions of deprotection of the group Boc, (b) the guanidine function of the arginine is protected by protonation, and (c) the N-terminal amino acid is protected on the amine by the Boc group;--selectively eliminating the group Boc from the N-terminal amine of the peptide in phase of elongation by hydrolysis with trifluoroacetic acid, said coupling being effected in an aprotic polar solvent and--eliminating, at the end of sequence, all the protector groups by hydrolysis with the aid of a 0.1 to 1M solution of methanesulfonic or trifluoromethanesulfonic acid in trifluoroacetic acid.

    摘要翻译: 本发明涉及液相和中间肽中hpGRF(somatocrinin)的合成,其包括: - 一个接一个接合并按照GRF序列的顺序,其中:(a)侧酸功能 的天冬氨酸和谷氨酸以及赖氨酸的侧胺官能团由Boc组脱保护条件下稳定的保护基团保护,(b)精氨酸的胍功能受到质子化保护,(c)N - 末端氨基酸被Boc基团保护在胺上; - 通过用三氟乙酸水解选择性地在延伸期通过肽从N末端胺除去基团Boc,所述偶联在非质子极性溶剂中进行, 在序列结束时,通过在0.1至1M甲磺酸或三氟甲磺酸三氟乙酸溶液中水解除去所有的保护基团。