Sesquiterpenes and acetogenins from the marine red alga Laurencia okamurai
Sesquiterpenes and acetogenins from the marine red alga Laurencia okamurai
复制标题
来自海洋红藻 Laurencia okamurai 的倍半萜烯和乙酰苷
DOI:
10.1016/j.fitote.2011.12.018
复制
发表时间:
2012-04-01
期刊:
影响因子:
3.4
通讯作者:
Ji, Nai-Yun
中科院分区:
文献类型:
--
作者:
Li, Xiao-Dong;Miao, Feng-Ping;Ji, Nai-Yun
Three new halogenated sesquiterpenes, 10-bromo-7 alpha,8 alpha-expoxychamigr-1-en-3-ol (1), 10-bromo-beta-chamigren-8-ol (2), and 10-bromo-3-chlorocupar-5-en-2-ol (3), one new C-12-acetogenin, desepilaurallene (7), one new naturally occurring sesquiterpene, 7-hydroxylaurene acetate (4), two known sesquiterpenes, allolaurinterol acetate (5) and laurene (6), and one known C-15-acetogenin, epilaurallene (8), were isolated from the marine red alga Laurencia okamurai collected from the coast of Rongcheng, China. The structures of these compounds were unambiguously established by 1D, 2D NMR and mass spectroscopic techniques. The bioassay results showed that 4,5 exhibited potent antibacterial activity, and 1, 4, 5 were toxic to brine shrimp. (C) 2011 Elsevier B.V. All rights reserved.