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    • 2. 发明专利
    • Selectively cleavable linker based on iminodiacetic acid ester
    • 基于氨基酸酯酶的选择性可清除的连接酶
    • JP2003327597A
    • 2003-11-19
    • JP2003159838
    • 2003-06-04
    • Selectide Corpセレクタイド コーポレーション
    • LEBL MICHALKRCHNAK VIKTORKOCIS PETRLAM KIT S
    • A61K38/00C07K5/00C07K1/04
    • C07K1/042
    • PROBLEM TO BE SOLVED: To provide a cleavable linker forming a peptide having a substantially unchanged structure, especially a peptide having unbonded diketopiperazine part. SOLUTION: The linker based on an ester bond linkage, especially an iminodiacetic acid ester bond linkage for use in solid phase peptide synthesis is provided. In particular, the cleavable linker can release a peptide from the solid phase support under relatively mild conditions by formation of a diketopiperazine or other cyclic structure remaining on the solid phase support, and, in a second cleavage, under more stringent conditions of high pH. The solid phase supports are prepared with multiple cleavage 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. COPYRIGHT: (C)2004,JPO
    • 待解决的问题:提供形成具有基本上不变的结构的肽的可切割连接物,特别是具有未结合的二酮哌嗪部分的肽。 解决方案:提供了基于酯键连接的接头,特别是用于固相肽合成的亚氨基二乙酸酯键键。 特别地,可切割接头可以在相对温和的条件下通过形成二酮哌嗪或保留在固相载体上的其它环状结构,以及在更高严格条件下的高pH下在第二次裂解中从固相支持物释放肽。 固相载体用多个裂解连接子制备,包括通过形成环状产物而切割的连接体。 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。 版权所有(C)2004,JPO