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A new geranyl flavanone, 2′-hydroxy-macarangaflavnone A (1), and a known 4′,7-dihydroxy-8-methylflavan were isolated from the leaves of Macaranga triloba (Euphorbiceae). The structure of 1 was elucidated based on spectroscopic methods, including 1D and 2D NMR analysis.
The authors in Vietnam side are grateful for the financial support from Shanghai Institute of Materia Medica. We also thank Dr Truong Thi Dep for identifying the voucher specimen.
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