作者:Eline Bredal Furenes、Jaco Luijendijk、Jon Efskind、Kjell Undheim
DOI:10.1081/scc-200048407
日期:2005.1
Abstract Methodology has been developed for the synthesis of C4‐carba‐bridged cystine analogues with a 1,3‐disubstituted phenyl group inserted into the chain. Stereoselective bromobenzylation of the Schöllkopf chiron and a subsequent bromine‐lithium exchange provided a lithiated species for conversion to a higher order cyanocuprate. The latter was cross‐coupled with an α‐bromoacylaminoacetate. Subsequent
摘要 已开发出合成 C4-carba 桥连胱氨酸类似物的方法,其中 1,3-二取代苯基插入链中。Schöllkopf chiron 的立体选择性溴苄基化和随后的溴-锂交换提供了一种锂化物质,用于转化为更高阶的氰铜酸盐。后者与α-溴酰基氨基乙酸酯交叉偶联。随后的弱酸水解提供了正交保护的氨基酸。