Cyclic peptide mixtures via side chain or backbone attachment and solid
phase synthesis
    1.
    发明授权
    Cyclic peptide mixtures via side chain or backbone attachment and solid phase synthesis 失效
    通过侧链或骨架连接和固相合成的环状肽混合物

    公开(公告)号:US6008058A

    公开(公告)日:1999-12-28

    申请号:US423091

    申请日:1995-04-18

    CPC分类号: C07K7/64 C07K1/047 C07K7/50

    摘要: A method of preparing cyclic peptide mixtures via side chain or backbone and solid phase synthesis. The cyclic peptide mixtures form libraries that are useful for screening purposes featuring the attachment of an amino acid to a solid support through its side chain or backbone in order to mimic solution cyclization procedures with linear peptides. In the preferred embodiment, Boc chemistry is used for peptide synthesis, wherein the initial attachment of a trifunctional amino acid is by the aspartyl side chain (with OFm for alpha-carboxyl protection). Cyclization is performed using uronium reagents with racemization suppressant, and a strong acid (HF) is used for deprotection and cleavage. The strategy has been used for the preparation of a series of cyclic peptide mixtures. The procedure is expandable to include at least twenty different amino acids at each position (except the resin linked position where most attachments are by Asp, Lys, Glu, or Orn). The cyclic peptide mixtures vary in ring size from about four to about twelve residues.

    摘要翻译: 通过侧链或骨架和固相合成制备环肽混合物的方法。 环状肽混合物形成可用于筛选目的的文库,其特征在于通过其侧链或主链将氨基酸连接到固体支持物上,以模拟具有线性肽的溶液环化程序。 在优选的实施方案中,Boc化学用于肽合成,其中三官能氨基酸的初始附着是通过天冬氨酰侧链(具有用于α-羧基保护的OFm)。 使用具有消旋抑制剂的尿素试剂进行环化,使用强酸(HF)进行脱保护和切割。 该策略已被用于制备一系列环肽混合物。 该程序可扩展至每个位置至少包含二十个不同的氨基酸(除大多数附着物由Asp,Lys,Glu或Orn组成的树脂连接位置除外)。 环肽混合物的环尺寸约为四至十二个残基。