Three new furostanol saponins from the leaves of Lycianthes synanthera ("chomte"), an edible Mesoamerican plant
2005
Piccinelli, A.L. | Salazar de Ariza, J. | Velasquez Miranda, R. | Quesada Mora, S. | Aquino, R. | Rastrelli, L.
Three new furostanol oligoglycosides, 3-O-(alpha-L-rhamnopyranosyl-(1 leads to 2)-[alpha-L-rhamnopyranosyl-(1 leads to 4)]-beta-D-glucopyranosyl)-26-O-beta-D-glucopyranosyl-22alpha-methoxy-25R-furost-5-ene-3beta,17alpha,26-triol (1), 3-O-(alpha-L-rhamnopyranosyl-(1 leads to 2)-[alpha-L-rhamnopyranosyl-(1 leads to 4)]-beta-D-glucopyranosyl)-26-O-beta-D-glucopyranosylfurost-5-ene-3beta,17alpha,22alpha,25,26-pentol (2), and 3-O-(alpha-L-rhamnopyranosyl-(1 leads to 2)-[alpha-L-rhamnopyranosyl-(1 leads to 4)]-beta-D-glucopyranosyl)-26-O-beta-D-glucopyranosylfurost-5-ene-3beta,22alpha,25,26-tetrol (3), named lycianthosides A-C, together with known flavone glycosides were isolated from Lycianthes synanthera leaves, an edible plant of the Solanaceae family that grows naturally in Guatemala. The nutrient composition of the raw leaves was also evaluated.
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