Synthesis of novel N-protected β3-amino nitriles: study of their hydrolysis involving a nitrilase-catalyzed step
作者:Maité Sylla-Iyarreta Veitía、Pierre Louis Brun、Pierre Jorda、Annie Falguières、Clotilde Ferroud
DOI:10.1016/j.tetasy.2009.07.045
日期:2009.9
Several commercially available nitrilases were investigated with regard to their potential to hydrolyze N-protected beta(3)-amino nitriles into their corresponding N-protected beta(3)-amino acids.The biotransformations were obtained in different proportions depending oil the nitrilase involved The best hydrolysis results were achieved for the N-Cbz-beta(3)-amino nitrile from i-alanine using the NIT-107, in a phosphate buffer at 0 05 M However, no biotransformation into the corresponding acids was observed for the N-sulfonylamide beta(3)-amino nitriles. Two simple and efficient procedures to prepare the beta(3)-amino nitriles from their analogous alpha-amino acids are described Thirty four new substances were synthesized and characterized over the course of this work. (C) 2009 Elsevier Ltd All rights reserved