Efficient asymmetric synthesis of important tryptophan analogs for biological research via the Schöllkopf chiral auxiliary
作者:Chunrong Ma、Shu Yu、Xiaohui He、Xiaoxiang Liu、James M Cook
DOI:10.1016/s0040-4039(00)00263-x
日期:2000.4
An efficient method has been developed via the Schöllkopf chiral auxiliary for the asymmetricsynthesis of the important tryptophan analogs: l-isotryptophan, l-benzo[f]tryptophan and l-homotryptophan.
通过Schöllkopf手性助剂已经开发出一种有效的方法,用于重要色氨酸类似物的不对称合成:l-异色氨酸,l-苯并[ f ]色氨酸和l-纯色氨酸。
One Substrate - Seven Products with Different Prenylation Positions in One-Step Reactions: Prenyltransferases Make it Possible
作者:Aili Fan、Shu-Ming Li
DOI:10.1002/adsc.201300386
日期:2013.9.16
precursors. Prenyltransferases catalyze the transfer reactions of prenyl moieties onto the indole nucleus and contribute largely to the structural diversity of these compounds. In this study, we demonstrate the acceptance of cyclo‐L‐homotryptophan‐D‐valine, an unnatural cyclic dipeptide, by eight prenyltransferases of the dimethylallyltryptophan synthase superfamily. Sevenproducts with one prenyl moiety