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Stachyfloroside E: A New Acylated Flavone Glycoside from Stachys parviflora

Ahmad V., Arshad S., Bader S., Iqbal S., Tareen R.

Polish Journal of Chemistry

2005

Vol. 79 / nr 8

1295-1300

Phytochemical investigations of the whole plant of Stachys parviflora (Lamiaceae) resulted in the isolation of a new acylated flavone glycoside. The structure of the new compound, named stachyfloroside E, was established as 6,8-dihydroxy-2-(4',5'-dihydroxy)-7[-6-O-acetyl-_-Dgalactopyranosyl( 1--2)-beta-D-glucopyranosyl)oxy]-4H-1-benzopyran (1). The structure elucidation of the new compound was based primarily on 1D and 2D NMR analysis, including COSY, HMBC and HMQC correlations.