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Four new compounds from fruits of Hypericum patulum Thunb
Li Jiang1,2, Xue Ma1,2, Yang Wang2,3
1Department of Pathophysiology, School of Basic Medical Sciences, Guizhou Medical University, Guizhou, People's Republic of China.
Abstract:
A new naphthoquinone, patulumnaphthoquinone A (1) and three new glycosides, patulumside B (2), patulumside C (3) and patulumside D (4) were isolated from the 30% ethanol extract of the fresh ripe fruits of Hypericum patulum Thunb. using column chromatography techniques. The structures of these compounds including absolute configurations were elucidated on the basis of HRESIMS, NMR spectroscopic analyses, calculated electronic circular dichroism spectra and comparison with the literatures.
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