Stereoselective synthesis of conformationally constrained (2S,3S)-3-hydroxyornithine
摘要:
A convenient and efficient route is described for the highly stereoselective synthesis of delta-amino protected and conformationally restricted (2S, 3S)-3-hydroxyornithine through the N-benzylnitrone adduct to the alpha, beta-unsaturated bicyclic lactam 2 derived from (S)-pyroglutaminol. (c) 2006 Elsevier Ltd. All rights reserved.
Stereoselective synthesis of conformationally constrained (2S,3S)-3-hydroxyornithine
摘要:
A convenient and efficient route is described for the highly stereoselective synthesis of delta-amino protected and conformationally restricted (2S, 3S)-3-hydroxyornithine through the N-benzylnitrone adduct to the alpha, beta-unsaturated bicyclic lactam 2 derived from (S)-pyroglutaminol. (c) 2006 Elsevier Ltd. All rights reserved.
1,3-Dipolar cycloadditions of nitrones to α,β-unsaturated γ-lactams derived from (S)-pyroglutaminol
作者:Nicole Langlois、Nguyen Van Bac、Nathalie Dahuron、Jean-Marc Delcroix、Abdallah Deyine、Dominique Griffart-Brunet、Angèle Chiaroni、Claude Riche
DOI:10.1016/0040-4020(95)00100-m
日期:1995.3
α,β-Unsaturated γ-lactams undergo regio- and stereoselective 1,3-dipolar cycloadditions with N-benzyl and N-methyl nitrones and can act as acceptors in conjugateaddition of N-methylhydroxylamine. These reactions give access to highly functionalized pyrrolidones.