Abstract
The isolation of 6-hydroxyluteolin-7- O-(1′′-α-rhamnoside) from the Central American epiphyte Vriesea sanguinolenta Cogn. and Marchal (Bromeliaceae) is described here. Its stereostructure was established by spectroscopic methods and an X-ray structure analysis of its hepta- O-acetyl derivative. This flavonoid glycoside had previously been reported from some Teucrium species (Labiatae), yet without sufficient physical data and spectroscopic evidence.
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