Concise Asymmetric Synthesis of (+)-CP-99,994 and (+)-L-733,060 via Efficient Construction of Homochiral <i>syn</i>-1,2-Diamines and <i>syn</i>-1,2-Amino Alcohols
作者:Run-Hua Liu、Kai Fang、Bing Wang、Ming-Hua Xu、Guo-Qiang Lin
DOI:10.1021/jo8002979
日期:2008.4.1
efficient asymmetricsynthesis of human NK-1 SP receptor antagonists (+)-CP-99,994 and (+)-L-733,060 was achieved starting from a common chiral intermediate (5). Our route featured the SmI2-induced reductive coupling of N-tert-butanesulfinyl imine (7) with aldehyde (6) as the key step as well as pivotal transformations of the anti-1,2-amino alcohol thus obtained to homochiral syn-1,2-amino alcohol and syn-1