Two New Antifungal Polyunsaturated Fatty Acid Ethyl Esters from the Red Alga Laurencia okamurai

Two New Antifungal Polyunsaturated Fatty Acid Ethyl Esters from the Red Alga Laurencia okamurai
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来自红藻 Laurencia okamurai 的两种新型抗真菌多不饱和脂肪酸乙酯

DOI:
10.1007/s10600-015-1306-8
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发表时间:
2015-06
影响因子:
0.8
通讯作者:
Mao, Shui-Chun
Mao, Shui-Chun
中科院分区:
化学4区
文献类型:
--
作者:
Yang, Peng;Yang, Hui;Lin, Kun;Mao, Shui-Chun

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两种新的多不饱和脂肪酸乙酯,(9 Z,12 Z,15 Z,18 Z,21 Z)-二十四碳-9,12,15,18,21-五烯酸乙酯(1)和(10 Z,13 Z)-十九碳-10,13-二烯酸乙酯(2),与三种已知类似物,(9 Z,12 Z)-十九碳-9,12-二烯酸乙酯(3),(Z)-十八碳-13-烯酸乙酯(4)和(Z)-十六碳-11-烯酸乙酯(5)。通过IR、HR-EI-MS、1D和2D NMR等波谱分析,确定了化合物的结构。在体外生物测定中,所有分离物均对光滑念珠菌(537)、红色毛癣菌(Cmccftla)、新型隐球菌(32609)和烟曲霉(07544)4种真菌进行了抗真菌活性评价。
Two new polyunsaturated fatty acid ethyl esters, (9Z,12Z,15Z,18Z,21Z)-ethyl tetracosa-9,12,15,18,21-pentaenoate (1) and (10Z,13Z)-ethyl nonadeca-10,13-dienoate (2), were isolated from a re-collection of the red alga Laurencia okamurai Yamada, together with three known analogues, (9Z,12Z)-ethyl nonadeca-9,12-dienoate (3), (Z)-ethyl octadec-13-enoate (4), and (Z)-ethyl hexadec-11-enoate (5). Their structures were elucidated on the basis of detailed spectroscopic analysis, including IR, HR-EI-MS, and 1D and 2D NMR. In in vitro bioassays, all the isolates were evaluated for their antifungal activity against four fungi, including Candida glabrata (537), Trichophyton rubrum (Cmccftla), Cryptococcus neoformans (32609), and Aspergillus fumigatus (07544).
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