Sesquiterpenes and acetogenins from the marine red alga Laurencia okamurai

Sesquiterpenes and acetogenins from the marine red alga Laurencia okamurai
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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
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发表时间:
2012-04-01
期刊:
影响因子:
3.4
通讯作者:
Ji, Nai-Yun
Ji, Nai-Yun
中科院分区:
医学3区
文献类型:
--
作者:
Li, Xiao-Dong;Miao, Feng-Ping;Ji, Nai-Yun

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三种新的卤代倍半萜,10-溴-7 α,8 α-双氧甘菊-1-烯-3-醇(1),10-溴-β-甘菊烯-8-醇(2),和10-溴-3-氯代铜-5-烯-2-醇(3),一种新的C-12-丙酮配基,脱表月桂烯(7),一种新的天然存在的倍半萜,7-羟基月桂烯乙酸酯(4),两种已知的倍半萜,从采自中国荣成沿海的海洋红藻Laurencia okamurai中分离得到一种新的化合物,即别醇月桂精乙酸酯(allolaurinterol acetate,5)和月桂烯(allene,6),以及一种已知的C-15-乙酸配基-表月桂烯(epilaurallene,8)。这些化合物的结构通过1D、2D NMR和质谱技术明确地确定。生物活性测定结果表明,化合物4、5具有较强的抑菌活性,化合物1、4、5对卤虫有一定的毒性。(C)2011 Elsevier B. V.保留所有权利。
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.