METHOD FOR SYNTHESIZING PEPTIDE CONTAINING N-SUBSTITUTED AMINO ACID

    公开(公告)号:US20200277327A1

    公开(公告)日:2020-09-03

    申请号:US16619388

    申请日:2018-06-08

    IPC分类号: C07K1/06 C07K11/02

    摘要: Methods of producing a peptide containing an N-substituted amino acid or N-substituted amino acid analog of the present invention include the steps of: preparing an Fmoc-protected amino acid, an Fmoc-protected amino acid analog, or an Fmoc-protected peptide; deprotecting a protecting group which have an Fmoc skeleton of the Fmoc-protected amino acid and such by using a base; and forming an amide bond by adding a new Fmoc-protected amino acid and such; and when the peptide is produced by a solid-phase method, the obtained peptide is cleaved off from the solid phase under conditions of weaker acidity than TFA. Furthermore, at least one side chain of the obtained peptide has a protecting group that is not deprotected under basic conditions and is deprotected under conditions of weaker acidity than TFA.

    METHOD FOR SYNTHESIZING PEPTIDE CONTAINING N-SUBSTITUTED AMINO ACID

    公开(公告)号:US20230406879A1

    公开(公告)日:2023-12-21

    申请号:US18459998

    申请日:2023-09-01

    IPC分类号: C07K1/06 C07K11/02

    CPC分类号: C07K1/061 C07K11/02

    摘要: Methods of producing a peptide containing an N-substituted amino acid or N-substituted amino acid analog of the present invention include the steps of: preparing an Fmoc-protected amino acid, an Fmoc-protected amino acid analog, or an Fmoc-protected peptide; deprotecting a protecting group which have an Fmoc skeleton of the Fmoc-protected amino acid and such by using a base; and forming an amide bond by adding a new Fmoc-protected amino acid and such; and when the peptide is produced by a solid-phase method, the obtained peptide is cleaved off from the solid phase under conditions of weaker acidity than TFA. Furthermore, at least one side chain of the obtained peptide has a protecting group that is not deprotected under basic conditions and is deprotected under conditions of weaker acidity than TFA.