Secondary metabolites from the endophytic fungus Pestalotiopsis virgatula isolated from the mangrove plant Sonneratia caseolaris

文献类型： 外文期刊

第一作者： Roensberg, David

作者： Roensberg, David;Debbab, Abdessamad;Proksch, Peter;Aly, Arnal H.;Mandi, Attila;Kurtan, Tibor;Wray, Victor;Dai, Haofu

作者机构：

关键词： Sonneratia caseolaris;Endophytic fungi;Pestalotiopsis virgatula;α-Pyrones

期刊名称：TETRAHEDRON LETTERS （ 影响因子：2.415； 五年影响因子：2.036 ）

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收录情况： SCI

摘要： Chromatographic analysis of an ethyl acetate extract of Pestalotiopsis virgatula rice cultures yielded four new α-pyrone derivatives, pestalotiopyrones I-L, and the new (6S,l'S,2'S)-hydroxypestalotin, in addition to three known compounds. The planar structures of the new compounds were elucidated on the basis of extensive NMR spectroscopic and mass spectrometric analyses. The absolute configurations of the new compounds were determined on the basis of biosynthetic considerations, coupling constants, and for pes-talotiopyrone L by TDDFT ECD calculations of solution conformers.

分类号： O62

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