作者:Qiang Zhang、Jian-Feng Li、Guang-Hui Tian、Rong-Xia Zhang、Jin Sun、Jin Suo、Xin Feng、Du Fang、Xiang-Rui Jiang、Jing-Shan Shen
DOI:10.1016/j.tetasy.2012.03.012
日期:2012.4
A practical and enantioselective synthetic method for tapentadol has been described. Starting from inexpensive and readily available (E)-3-(3-(benzyloxy)phenyl)acrylic acid, tapentadol was prepared in seven steps (44% overall yield and 99.9% de) in more than 100 g batches, without any chromatographic purification. An Evans' chiral auxiliary based conjugate addition and alkylation were used as the key steps. (C) 2012 Elsevier Ltd. All rights reserved.