Three new C-glycosides, calophymembransides D-F (1-3), were isolated from the stems of Calophyllum membranaceum Gardn. et Champ.. The structures were assigned on the basis of spectroscopic data. RXRα transcriptional inhibition and α-glucosidase inhibition assays indicated that all the isolates were inactive.
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Zhu et al. (2017) studied this question.
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