Abstract

A new flavonol glucoside, kaempferol 3- O-[2″,4″-di- O-acetyl-6″- O-( E- p-coumaroyl)]-β-D-glucopyranoside (namely crypsinoside A) (1), along with 7 known compounds 2 – 8 were isolated from the leaves of Crypsinus trilobus (Houtt.) Copel. (Polypodiaceae) for the first time. Their structures were elucidated on the basis of HR-ESI-MS, 1D and 2D NMR spectra.

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