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    • 33. 发明授权
    • Selectively cleavabe linners based on iminodiacetic acid esters for
solid phase peptide synthesis
    • 用于固相肽合成的基于亚氨基二乙酸酯的选择性切割的接头
    • US5635598A
    • 1997-06-03
    • US263289
    • 1994-06-21
    • Michal LeblViktor KrchnakPetr KocisKit S. Lam
    • Michal LeblViktor KrchnakPetr KocisKit S. Lam
    • A61K38/00C07K5/00C07K1/04A61K38/02
    • C07K1/042
    • The present invention is directed to linkers based on ester bond linkages, especially iminodiacetic acid ester bond linkages, for use in solid phase peptide synthesis. In particular, the invention is directed to cleavable linkers that can release peptide from the solid phase support under relatively mild conditions by formation of a diketopiperazine or other cyclic structure, such that the cyclic structure remains on the solid phase support, and, in a second cleavage, under more stringent conditions of high pH. The invention is further directed to solid phase supports prepared with multiple cleavable linkers, including a linker that is cleaved by formation of a cyclic product. One such second linker is an ester of hydroxymethylbenzoic acid, or esters formed by carboxy groups of aspartic or glutamic acid.
    • 本发明涉及用于固相肽合成的基于酯键连接的接头,特别是亚氨基二乙酸酯键键。 特别地,本发明涉及可切割的接头,其可以通过形成二酮哌嗪或其它环状结构在相对温和的条件下从固相支持物释放肽,使得环状结构保留在固相载体上,并且在第二 在更严格的高pH条件下开裂。 本发明还涉及用多个可切割接头制备的固相载体,其包括通过形成环状产物而被切割的连接体。 一个这样的第二接头是羟甲基苯甲酸的酯,或由天冬氨酸或谷氨酸的羧基形成的酯。