New cytotoxic Briaran diterpenes from the formosan gorgonian Briareum sp

New cytotoxic Briaran diterpenes from the formosan gorgonian Briareum sp
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DOI:
10.1021/np960218s
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发表时间:
1996-10-01
影响因子:
5.1
通讯作者:
Lee, TJ
Lee, TJ
中科院分区:
生物学2区
文献类型:
--
作者:
Sheu, JH;Sung, PJ;Lee, TJ

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从柳珊瑚属Briareum sp.中分离得到三个新的briaran二萜化合物:2 β-乙酰氧基-2-(去丁酰氧基)甾内酯E(3)、9 -去乙酰基stylatulide内酯(4)和4 β-乙酰氧基-9-去乙酰基stylatulide内酯(5),以及两个已知的二萜化合物brianthein W(1)和9-去乙酰基briarethein H(2)。通过光谱和化学方法确定了化合物的结构和相对立体化学。二萜2-4和相应的9-乙酰基衍生物6、7和12对各种癌细胞系表现出细胞毒性。
Three new briaran diterpenes, 2 beta-acetoxy-2-(debutyryloxy) stecholide E (3), 9 -deacetylstylatulide lactone (4), and 4 beta-acetoxy-9-deacetylstylatulide lactone (5), and two known diterpenes, brianthein W (1) and 9-deacetylbriareolide H (2), have been isolated from a Briareum sp. of gorgonian. The structures and relative stereochemistry of these compounds were determined by spectroscopic and chemical methods. Diterpenes 2-4 and the corresponding 9-acetyl derivatives 6, 7, and 12 exhibited cytotoxicity toward various cancer cell lines.