(BH3THF)-T-. can reduce polypeptides to polyamines with retention of chirality. The resulting polyamines are intriguing general platforms for asymmetric catalysis, given the diverse structures available and their relative ease of synthesis. We have constructed a number of chiral pyridoxamine catalysts based on reduced peptides. These compounds transaminate alpha-ketoacids with moderate to good enantioselectivity, while their peptidyl counterparts show almost no chiral induction. (c) 2005 Elsevier Ltd. All rights reserved.
(BH3THF)-T-可以将
多肽还原为
多胺,同时保留手性。所得的
多胺类物质是非常有趣的手性催化通用平台,鉴于其多样化的结构和相对容易合成的特性。我们已经构建了基于还原肽的多种手性
吡哆胺催化剂。这些化合物能够以中等到良好的对映选择性进行α-
酮酸的
氨基转换,而其肽类同类物则几乎不具有手性诱导能力。© 2005 Elsevier Ltd. 保留所有权利。