Stereoselective synthesis of cyclobutyl γ-amino acids leading to branched peptides with a cyclobutane core
作者:Jordi Aguilera、Raquel Gutiérrez-Abad、Àlex Mor、Albertina G. Moglioni、Graciela Y. Moltrasio、Rosa M. Ortuño
DOI:10.1016/j.tetasy.2008.12.019
日期:2008.12
Alternative synthetic routes are provided to synthesize gamma-amino acids in their free form or conveniently protected for their selective incorporation into ramified gamma-peptides with a cyclobutane core. The key synthetic-step involves the stereoselective conjugate addition of nitromethane to chiral cyclobutyl alkenoates prepared from (-)-verbenone. (C) 2008 Elsevier Ltd. All rights reserved.