出 处:《Chinese Herbal Medicines》2017年第1期58-62,共5页中草药(英文版)
基 金:National Basic Research Program of China(973 Program,2014CB460613);National Natural Science Foundation of China(81203006);Natural Science Foundation of Guangdong Province(2015A030313710);Guangdong Provincial Project for Science and Technology(2014A030304050,2015A030302060);Observation Station Foundation of Guangdong Academy of Science(Sytz201504,Sytz201511)
摘 要:Objective To study the characteristic 2-(2-phenylethyl)chromone components of endophytic fungal strain of Aquilaria sinensis by solid culture. Methods The compounds were isolated by various chromatographic methods such as silica gel, reverse-phase silica gel, Sephadex-LH20 column chromatography as well as crystallization. Results Seven 2-(2-phenylethyl)chromone analogues were isolated from the solid culture of Botryosphaeria rhodina A13. Their structures were established by spectral data as well as physicochemical properties, and identified as 6-hydroxy-7-methoxy-2-(2-phenylethyl)chromone (1), 6,7-dimethoxy-2-(2-phenylethyl) chromone (2), (5S,6R,7S,8R)-2-(2-phenylethyl)-5,6,7,8-tetrahydrchromone (3), 6- hydroxy-2-(2-phenylethyl)chromone (4), 4'-hydroxy-2-(2-phenylethyl)chromone (5), 6-methoxy-2-phenethyl-4H-chromen-4-one (6), and 6-methoxy-2-(4'-methoxy-phenethyl)-4H-chromen-4-one (7). Conclusion All of the compounds are isolated for the first time from the genus Botryosphaeria. This research opens up a new vista to produce the characteristic components of agarwood by endophytic fungi.Objective To study the characteristic 2-(2-phenylethyl)chromone components of endophytic fungal strain of Aquilaria sinensis by solid culture. Methods The compounds were isolated by various chromatographic methods such as silica gel, reverse-phase silica gel, Sephadex-LH20 column chromatography as well as crystallization. Results Seven 2-(2-phenylethyl)chromone analogues were isolated from the solid culture of Botryosphaeria rhodina A13. Their structures were established by spectral data as well as physicochemical properties, and identified as 6-hydroxy-7-methoxy-2-(2-phenylethyl)chromone (1), 6,7-dimethoxy-2-(2-phenylethyl) chromone (2), (5S,6R,7S,8R)-2-(2-phenylethyl)-5,6,7,8-tetrahydrchromone (3), 6- hydroxy-2-(2-phenylethyl)chromone (4), 4'-hydroxy-2-(2-phenylethyl)chromone (5), 6-methoxy-2-phenethyl-4H-chromen-4-one (6), and 6-methoxy-2-(4'-methoxy-phenethyl)-4H-chromen-4-one (7). Conclusion All of the compounds are isolated for the first time from the genus Botryosphaeria. This research opens up a new vista to produce the characteristic components of agarwood by endophytic fungi.
关 键 词:AGARWOOD Aquilaria sinensis Botryosphaeria rhodina A13 2-(2-phenylethyl) chromones solid culture
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