A concise C-glycosyl amino acid synthesis by alkenyl C-glycoside–vinyloxazolidine cross-metathesis. Synthesis of glycosyl serine, asparagine and hydroxynorvaline isosteres
作者:Alessandro Dondoni、Pier Paolo Giovannini、Alberto Marra
DOI:10.1039/b106029p
日期:——
A convergent synthesis has been developed to afford C-linked glycosyl amino acids by cross-metathesis of vinyl, allyl, and butenyl C-glycosides with N-Boc-vinyloxazolidine using the Grubbs 1,3-dimesityl-4,5-dihydroimidazol-2-ylideneruthenium carbene. The method has been employed to introduce through an α-linkage, an α-aminopentanoic acid chain at the anomeric carbon of β-D-C-gentiobiose to give a totally
已经开发出收敛合成以通过以下方式提供C-连接的糖基氨基酸:交叉复分解 的 乙烯基塑料, 烯丙基和丁烯基C-糖苷与N -Boc-乙烯基恶唑烷 使用Grubbs 1,3-dimesityl-4,5-dihydroimidazol-2-ylideneruthenium 卡宾。该方法已被用于通过α-连接在β- D - C-龙胆二糖的异头碳处引入α-氨基戊酸链,以得到α的完全人工糖基α-氨基酸。二糖。该化合物代表天然糖肽肾上腺皮质激素的α-连接的糖基天冬酰胺部分的等排体。