A facile asymmetric synthesis of Δ3-2-Hydroxybakuchiol, Bakuchiol and ent-Bakuchiol
作者:Qian-Qian Xu、Qun Zhao、Guang-Sheng Shan、Xi-Cheng Yang、Qi-Yuan Shi、Xinsheng Lei
DOI:10.1016/j.tet.2013.10.064
日期:2013.12
A facile asymmetric synthesis of Delta(3)-2-Hydroxybakuchiol, Bakuchiol, and ent-Bakuchiol is described through one common intermediate bearing a chiral all-carbon quaternary carbon center, which involves stereoselectively unconjugated alkylation of the alpha,beta-unsaturated imide bearing Evans' auxiliary, Takai-Utimoto reaction, Negishi reaction, and Heck reaction as key steps. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis of ∆3-2-Hydroxybakuchiol Analogues and Their Growth Inhibitory Activity against Rat UMR106 Cells
作者:Qun Zhao、Qianqian Xu、Guangsheng Shan、Chao Dong、Hong Zhang、Xinsheng Lei
DOI:10.3390/molecules19022213
日期:——
A series of ∆3-2-hydroxybakuchiol analogues have been synthesized and tested for their growth inhibitory activity against rat UMR106 cells by using the MTT method. Some of them exhibit enhanced activities compared with the natural product, and the preliminary SAR profile shows that the chain tail on the natural product could be subtly modified to enhance the activity and the aromatic moiety or the terminal olefin on the main chain can also be modified without any evident loss of activity. The stereo-configuration of the quaternary chiral center has an important influence on the activity.