Water-soluble constituents from aerial roots of Ficus microcarpa

Abstract

Three new water-soluble constituents [ficuscarpanoside B (1), (7E,9Z)-dihydrophaseic acid 3-O-β-d-glucopyranoside (4) and ficuscarpanic acid (6)] and the natural product 2,2′-dihydroxyl ether (7) have been isolated, together with three known compounds [(7S,8R)-syringoylglycerol (2), (7S,8R)-syringoylglycerol-7-O-β-d-glucopyranoside (3) and icariside D₂ (5)] from the aerial roots of Ficus microcarpa. Identification of their structures was achieved by 1D and 2D NMR experiments, including ¹H–¹H COSY, NOESY, HMQC and HMBC methods and FAB mass spectral data.

Keywords:

• Ficus microcarpa
• Moraceae
• Aerial roots
• Phenolic glucosides
• Sesquiterpenoid glucoside

Acknowledgements

We thank the staff of the analytical group of the Department of Chemistry, Taiwan University, for measuring the NMR and FAB-MS spectra. This research was supported by the Chinese National Science Fund (research project 20272015).