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Abstract
A new kaempferol glycoside, kaempferol-3-O-β-d-glucopyranoside-7-O-α-l-arabinofuranoside (1), was isolated from the EtOH extract of Pyrrosia petiolosa together with six known flavonoids already reported from the same plant. Structural elucidation was performed by means of physico-chemical methods including MS, and 1D and 2D NMR spectroscopy.
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Acknowledgements
The authors wish to acknowledge the contributions of Dr. Peng Zhang and Zhuo Liu for their help in collecting the plant material.