Abstract
Two new homoflavonoids (1 and 2) were isolated from the fern Ophioglossum pedunculosum Desv. Their structures were elucidated on the basis of spectroscopic data to be 6-(3-methyl-2-buten-1-yl) ophioglonin (1) and ophioglonin 4′-O-β-d-glucopyranoside (2), respectively. In addition, the possible biogenetic pathway to compounds 1 and 2 was discussed.
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Acknowledgments
We acknowledge the financial support by the National Natural Science Foundation of China (31160074) and the Fund of the Scientific Innovation Program of Postgraduates in Jiangsu Province (CX10B-384Z). One of the authors, Wan Chuanxing thanks Syngenta for a Postgraduate Fellowship Award.