Cadinane Sesquiterpenes from the brown alga Dictyopteris divaricata

Cadinane Sesquiterpenes from the brown alga Dictyopteris divaricata
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DOI:
10.1021/np040099d
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发表时间:
2004-10-01
影响因子:
5.1
通讯作者:
Shi, JG
Shi, JG
中科院分区:
生物学2区
文献类型:
--
作者:
Song, FH;Fan, X;Shi, JG

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七个新的杜松烷型倍半萜,(-)-(1 R,6S,7S,10 R)-1-羟基Cadinan-3-en-5-one(1),(+)-(1R,5S,6R,7S,10R)-Cadinan-3-ene-1,5-diol(2),(+)-(1R,5R,6R,7S,10R)-Cadinan-3-ene-1,5-diol(3),(+)-(1R,5S,6R,7S,10R)-Cadinan-4(11)-ene-1,5-diol(4),(+)-(1R,5R,6R,7R,10R)-Cadinan-4(11)-ene-1,5,12-triol(5),(-)-(1 R,4 R,5S,6 R,7S,10 R)-cadinan-1,4,5-triol(6)和(-)-(1 R,6 R,7S,10 R)-11-oxocadinan-4-en-1-ol(7),以及9个已知化合物从棕背网蕨Dictyopterisdivaricata中分离得到。通过IR、HRMS、1D和2D NMR、单晶X-射线衍射和CD等光谱数据,确定了新天然产物的结构及其绝对构型。所有化合物对几种人癌细胞系均无活性,包括肺腺癌(A549)、胃癌(BGC-823)、乳腺癌(MCF-7)、肝细胞瘤(Bel 7402)和结肠癌(HCT-8)细胞系。
Seven new cadinane sesquiterpenes, (-)-(1R,6S,7S,10R)-1-hydroxycadinan-3-en-5-one (1), (+)-(1R,5S,6R,7S, 10R)-cadinan-3-ene-1,5-diol (2), (+)-(1R,5R,6R,7S,10R)-cadinan-3-ene-1,5-diol (3), (+)-(1R,5S,6R,7S,10R)-cadinan-4(11)-ene-1,5-diol (4), (+)-(1R,5R,6R,7R,10R)-cadinan-4(11)-ene-1,5,12-triol (5), (-)-(1R,4R,5S,6R,7S, 10R)-cadinan-1,4,5-triol (6), and (-)-(1R,6R,7S,10R)-11-oxocadinan-4-en-1-ol (7), together with nine known compounds were isolated from the brown alga Dictyopteris divaricata. The structures of the new natural products, as well as their absolute configuration, were established by means of spectroscopic data including IR, HRMS, 1D and 2D NMR, single-crystal X-ray diffraction, and CD. All compounds were inactive against several human cancer cell lines including lung adenocarcinoma (A549), stomach cancer (BGC-823), breast cancer (MCF-7), hepatoma (Bel7402), and colon cancer (HCT-8) cell lines.