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Crystal Structure of 3S-hydroxy-7 Melleine
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作者 Xiao-hong Liu Fang Xu +5 位作者 Yi Zhang Li-hong Liu Hua-rong Huang Zhi-gang She Yong-cheng Lin Winglai Chanc 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 北大核心 2006年第5期423-427,共5页
A new compound, 3S-hydroxy-7 melleine was isolated from the endophytic fungus Xylariasp No.2508 from the mangrove tree on the South China Sea coast. It was the first time that this kind of compound was isolated from m... A new compound, 3S-hydroxy-7 melleine was isolated from the endophytic fungus Xylariasp No.2508 from the mangrove tree on the South China Sea coast. It was the first time that this kind of compound was isolated from marine fungus. The structure was elucidated by NMR data, infrared spectrum (IR) and mass spectrometry (MS). In addition, its structure was determined by the single-crystal X-ray diffraction analysis. It crystallized in monoclinic, space group P21 with a=10.8884(19) A, b=7.2284(13) A, c=13.398(2) A,β=104.217(3)°, C10H10O4·H2O, Mr=212.20, V=1022.2(3) A^3, Z=4, Dc=1.379 mg/m^3, F(000)=448, μ=0.112 mm^-1, the final R=0.0498, wR=0.101 for 2407 observed reflections (I〉2σ(I)). The molecular backbone of the compound includes a benzopyran ring. By comparing with the melting point and the optical rotation of the known 3R-hydroxy-7 melleine in literature, the absolute configuration of the compound was determined as 3S. It didn't exhibit antibacterial activity against Gram-positive bacterium Staphylococcus aureus at 200 μg/disk in the preliminary test. 展开更多
关键词 3S-hydroxy-7 melleine ISOLATION Crystal structure
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照夜白的化学成分研究(英文)
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作者 肖艳华 潘志权 《化学与生物工程》 CAS 2008年第7期77-78,共2页
从照夜白地上部分的95%乙醇提取物中首次分离得到了3个化合物,采用波谱方法或与已知品对照的手段,鉴定为Mellein(Ⅰ)、β-谷甾醇(Ⅱ)和山萘酚-7-甲氧基-4′-O-β-D-葡糖苷(Ⅲ)。
关键词 照夜白 mellein 山萘酚
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