作者:Francesco Caputo、Francesca Clerici、Maria Luisa Gelmi、Sara Pellegrino、Tullio Pilati
DOI:10.1016/j.tetasy.2005.11.011
日期:2006.1
Two epimeric chiral cyclopentylglycines (-)-16 and (+)-17, functionalised with a carboxy group cis to the amino acid group, were prepared starting from chiral 2-amino-3-oxo-norbornanecarboxylic acid derivative exo-9 by combining two classical reactions such as the Diels-Alder and retro-Claisen reactions. Compounds 16 and 17 are non-proteinogenic amino acids of biological interest containing conformational constraints in which the skeletons of both 2-aminoadipic acid and 2-aminopimelic acid are included. (c) 2005 Elsevier Ltd. All rights reserved.