2-Azidoethoxy derivatives of 2-aminocyclohexanecarboxylic acids (ACHC): interesting building blocks for the synthesis of cyclic β-peptide conjugates
作者:José J. Reina、Anna Bernardi
DOI:10.1016/j.tet.2011.05.131
日期:2011.8
Oligomers of cyclic-beta-aminoacids possess a high resistance to peptidase-catalyzed hydrolysis and display a high intrinsic tendency to adopt regular secondary structures. These characteristics are attractive to develop new biologically active substances. However, cyclic-beta-peptides often show limited solubility in water and cannot be conjugated to biologically relevant fragments, such as oligosaccharides, which are often essential for full biological activity of natural alpha-peptides. In this article, we report the synthesis of one trans- and one cis-2-aminocyclohexanecarboxylic acid (ACHC), both functionalized with a hydroxy group, to increase the solubility in water, and an azidoethoxy group to allow the synthesis of cyclic-beta-peptide conjugates by a 'click reaction'. (C) 2011 Elsevier Ltd. All rights reserved.
Diels–Alder approaches to ring-functionalized cyclic β-amino acids
作者:Peter Wipf、Xiaodong Wang
DOI:10.1016/s0040-4039(00)01576-8
日期:2000.11
Catalytic asymmetric Diels–Alder reactions with aminodiene 1 and desymmetrized fumarate 8 were used for efficient access to dihydroxylated cis- and trans-aminocyclohexane β-aminoacids.