Cleavable and tunable cysteine-specific arylation modification with aryl thioethers
作者:Jian Li、Jun-Jie Deng、Zhibin Yin、Qi-Long Hu、Yang Ge、Zhendong Song、Ying Zhang、Albert S. C. Chan、Huilin Li、Xiao-Feng Xiong
DOI:10.1039/d0sc06576e
日期:——
Cysteine represents an attractive target for peptide/protein modification due to the intrinsic high nucleophilicity of the thiol group and low natural abundance. Herein, a cleavable and tunable covalent modification approach for cysteinecontainingpeptides/proteins with our newly designed aryl thioethers via a SNAr approach was developed. Highly efficient and selective bioconjugation reactions can
The bis and tris heterocycles‐benzoxazolyl/benzothiazolyl/benzimidazolyl quinazolines linked by sulfur and/or nitrogen were prepared from 2,4‐dichloroquinazoline and benzazolyl‐2‐thiol/benzazolyl‐2‐amine and studied their antibacterial activity. The nitro‐substituted sulfur‐linked bisbenzothiazolylquinazoline (12f), bisbenzimidazolylquinazoline (13f), and nitro‐substituted sulfur and nitrogen‐linked