Simple peptides and their analogues having a primary amino group as the catalytic residue mediate the direct asymmetric intermolecular aldol reaction with high stereoselectivity and furnish the corresponding aldol products with up to 99% ee; this intrinsic ability of highly modular peptides may explain the initial molecular evolution of aldolase enzymes.
Simple modular di- and tripeptides with a primary amine at the N-terminus catalyze the aqueous asymmetric aldol reaction between unmodified ketones and aldehydes to furnish the corresponding β-hydroxy ketones with up to 86% ee in water and 99% ee in aqueos media.
N 末端带有伯胺的简单模块化二肽和三肽可催化未修饰的酮和醛之间的水性不对称羟醛反应,为相应的 β-羟基酮提供在水中高达 86% ee 和在水介质中高达 99% ee 的 β-羟基酮。