Stereoselective synthesis of (R)-(−)-denopamine, (R)-(−)-tembamide and (R)-(−)-aegeline via asymmetric reduction of azidoketones by Daucus carota in aqueous medium
                                
                                    
                                        作者:J.S. Yadav、P.Thirupathi Reddy、S. Nanda、A.Bhaskar Rao                                    
                                    
                                        DOI:10.1016/s0957-4166(02)00024-1
                                    
                                    
                                        日期:2002.1
                                    
                                    A simple and efficient stereoselective synthesis of (R)-denopamine and other naturally occurring hydroxy amides from optically active (R)-2-azido-1-arylethanols, is described for the first time via reduction of the corresponding alpha-azidoarylketones with enzymes from Darcus Carota root, under mild and environmentally friendly conditions. The products are formed with high degrees of enantioselectivity. (C) 2002 Elsevier Science Ltd. All rights reserved.