Herein, a non-classical C-saccharide linkage is reported via a C5 radical of pentose or C6 radical of hexose addition to Michael acceptors. C(sp3)–S cleaved glycosyl thianthrenium salts are developed as the glycosyl radical agents. The reaction provides an efficient toolkit to synthesize β-glycosyl substituted unnatural amino acids as well as for the late-stage C-saccharide modification of peptides
在此,通过向迈克尔受体添加戊糖的 C5 自由基或己糖的 C6 自由基,报道了非经典的C糖键。C(sp 3 )–S 裂解的糖基
噻蒽盐被开发为糖基自由基试剂。该反应为合成 β-糖基取代的非天然
氨基酸以及肽的后期C糖修饰提供了一个有效的工具包。