Abstract
Nine previously undescribed dichapetalin-type triterpenoids (1–9), along with 12 reported compounds (10−21), were isolated from the twigs of Dichapetalum gelonioides. Their chemical structures were mainly elucidated by comprehensive analysis of HRMS, 1D and 2D NMR spectroscopic data. The absolute configuration of compound 1 was further determined based on single-crystal X-ray diffraction. In addition, a part of compounds were evaluated the effects of inhibitory NO production in LPS-induced RAW264.7 macrophages.
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