Chin. J. Org. Chem. ›› 2011, Vol. 31 ›› Issue (08): 1230-1234. Previous Articles     Next Articles

Reviews

(±)-Glovanon和(±)-5-O-Methylglovanon的首次全合成及其抑菌活性研究

杨金会*,1,李红俊1,张玉恒1,江世智1,李云峰1,薛屏1,马玉龙2,刘万毅1,2   

  1. (1宁夏大学能源化工重点实验室 银川 750021)
    (2宁夏大学化学化工学院 银川 750021)
  • 收稿日期:2010-10-26 修回日期:2011-03-14 发布日期:2011-03-29
  • 通讯作者: 杨金会 E-mail:yang_jh@nxu.edu.cn

First Total Synthesis of (±)-Glovanon and (±)-5-O-Methylglovanon and Their Bacteriostatic Activity

Yang Jinhui*,1 Li Hongjun1 ZhangYu-heng1 Jiang Shizhi1 Li Yunfeng1 Xue Ping1 Ma Yulong2 Liu Wanyi1,2   

  1. (1 Key Laboratory of Energy Sources & Engineering, Ningxia University, Yinchuan 750021)
    (2 School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021)
  • Received:2010-10-26 Revised:2011-03-14 Published:2011-03-29

The total synthesis of glovanon (1) and 5-O-methylglovanon (2), two naturally occurring isoprenylflavanoids, was first achieved through C-prenylation, selective methylation or methoxymethyl protection, aldol condensation, deprotection, cyclization and demethylation starting from cheap isovanillin and 2,4,6-trihydroxyacetophenone with total yields of 23% and 13.3%, respectively. The key step was C-prenylation of 2,4,6-trihydroxyacetophenone. The structures of all new componds were confirmed by 1H NMR, IR and MS techniques, and the bioassay results indicated that the two novelly synthesized compounds demonstrated good inhibitory effect against Micrococcus luteus (M. luteus) and Escherichia coli (E. coli).

Key words: glovanon, 5-O-methylglovanon, flavanoid, isoprenylflavanoid, total synthesis, bacteriostatic activity