Four new coumarins from the leaves of Calophyllum inophyllum

Four new coumarins, namely (-)-12-methoxyinophyllum A, (+)-12-methoxyinophyllum H-1, (-)-12-methoxyinophyllum H-2, and inophyllum J, along with two known compounds, 12-ethoxyinophyllum D and isoinophynone were isolated from the leaves of Calophyllum inophyllum. Their structures were elucidated by sp...

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Published inPhytochemistry letters Vol. 16; pp. 203 - 206
Main Authors Li, Zhan-lin, Li, Yuan, Qin, Ning-bo, Li, Da-hong, Liu, Zhi-guo, Liu, Qian, Hua, Hui-ming
Format Journal Article
LanguageEnglish
Published 01.06.2016
Subjects
Calophyllum inophyllum
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Summary:Four new coumarins, namely (-)-12-methoxyinophyllum A, (+)-12-methoxyinophyllum H-1, (-)-12-methoxyinophyllum H-2, and inophyllum J, along with two known compounds, 12-ethoxyinophyllum D and isoinophynone were isolated from the leaves of Calophyllum inophyllum. Their structures were elucidated by spectroscopic analyses, and complete assignments of super(1)H and super(13)C NMR spectroscopic data were achieved by 1D and 2D NMR experiments.
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ISSN:1874-3900
DOI:10.1016/j.phytol.2016.04.015