METHOD FOR PRODUCING HYDROPHOBIC PEPTIDE
    2.
    发明公开

    公开(公告)号:EP3199540A4

    公开(公告)日:2018-05-09

    申请号:EP15844011

    申请日:2015-09-25

    IPC分类号: C07K1/14 C07K1/04

    CPC分类号: C07K1/04 C07K1/14

    摘要: An object of the present invention is to provide a producing method: that allows any hydrophobic peptide to be used as an object to be purified, in hydrophilizing a hydrophobic peptide, synthesized by solid-phase peptide synthesis, with a hydrophilic unit and purifying the hydrophobic peptide by HPLC, regardless of the type of the amino acid residue at the N-terminus; that allows the hydrophilic unit to be flexibly selected in accordance with the type of the hydrophobic peptide; and that is excellent in versatility. The present invention is characterized by a method for producing a purified peptide from a supported crude peptide including a support and a first peptide chain bonded to the support at a C-terminus, the method comprising: a hydrophilization step A of introducing a linker and a hydrophilic unit to an amino group of the supported crude peptide in this order stepwise or at a single step to obtain a support-free hydrophilized peptide; a support cleavage step B of cleaving a bond between the first peptide chain and the support at any stage before bonding the linker to the supported crude peptide until the hydrophilized peptide is obtained, or after a supported hydrophilized peptide is obtained; a chromatographic purification step of treating the support-free hydrophilized peptide obtained by the hydrophilization step A and the support cleavage step B, by liquid chromatography; and a linker cleavage step of cleaving a bond between the linker and the first peptide chain included in the chromatographically-purified support-free hydrophilized peptide, by chemical treatment.