申请人:AJINOMOTO CO., INC.
公开号:EP3882255A1
公开(公告)日:2021-09-22
The present invention provides a method for producing a cyclized peptide having a crosslinked structure by one or more intramolecular S-S bonds, which is shown below.
A method for producing a cyclized peptide, including
(1-A) as to a linear peptide having two or more SH groups as functional groups on the peptide, in which all SH groups are protected, an N terminal amino group is optionally protected, and all of a C-terminal carboxy group and other functional groups on the peptide are protected (completely-protected peptide), a step of removing protecting groups of all functional groups other than the protected SH groups in the peptide,
(1-B) a step of protecting all SH groups of the linear peptide having two or more SH groups as the functional groups on the peptide by forming a temporary S-S bond,
and
(2) a step of subjecting the peptide obtained by the above-mentioned step (1-A) and step (1-B), in which two or more SH groups are present as the functional groups on the peptide, all SH groups are protected by formation of a temporary S-S bond, and all protecting groups of other functional groups on the peptide are removed (S-protected peptide) to a folding step under oxidation and reduction conditions to obtain the cyclized peptide by re-forming an S-S bond in the peptide molecule.
本发明提供了一种通过一个或多个分子内 S-S 键交联结构的环化肽的生产方法,如下所示。
一种生产环化肽的方法,包括
(1-A) 对于肽上具有两个或两个以上 SH 基团作为官能团的线性肽,其中所有 SH 基团均受保护,N 端氨基任选受保护,C 端羧基和肽上的其他官能团均受保护(完全保护肽),去除肽中除受保护的 SH 基团以外的所有官能团的保护基团的步骤、
(1-B) 通过形成临时的 S-S 键来保护多肽上具有两个或两个以上 SH 基团的线性多肽的所有 SH 基团、
和
(2) 将上述步骤(1-A)和步骤(1-B)得到的多肽(其中有两个或两个以上的 SH 基团作为多肽上的官能团,通过形成临时 S-S 键保护所有 SH 基团,并去除多肽上其他官能团的所有保护基团(S 保护多肽))在氧化和还原条件下进行折叠步骤,通过在多肽分子中重新形成 S-S 键得到环化多肽。