A catalyst-free and controllable reaction of isatin-derived para-quinone methides with sulfur ylides was developed. This protocol enables the divergent synthesis of two different valuable oxindole derivatives with a broad substrate scope and high stereoselectivities (up to >20 : 1 dr and only the (Z)-configuration).
Synthesis of dendrimeric N-glyoxylamide peptide mimics
作者:Thanh Le、Wai Ching Cheah、Kasey Wood、David St.C. Black、Mark D. Willcox、Naresh Kumar
DOI:10.1016/j.tetlet.2011.05.019
日期:2011.7
A range of peptidomimetic dendrimers based on 1,3,5-benzenetricarbonyl trichloride and tris(2-aminoethyl)amine central cores has been synthesised through the facile ring-opening of N-acylisatins with amino acids, alcohols and other amines. (C) 2011 Elsevier Ltd. All rights reserved.