Three new flavonoid glycosides from Urena lobata |
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Authors: | Lu Jia You-Mei A Lin-Lin Jing Sheng-An Zhou |
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Affiliation: | School of Pharmacy, Zhengzhou University , Zhengzhou, 450001, China |
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Abstract: | Three new flavonoid glycosides, kaempferol-3-O-β-d-apiofuranosyl(1 → 2)-β-d-glucopyranosyl-7-O-α-l-rhamnopyranoside (1), kaempferol-4′-O-β-d-apiofuranosyl-3-O-β-d-glucopyranosyl-7-O-α-l-rhamnopyranoside (2), and 5,6,7,4′-tetrahydroxy-flavone-6-O-β-d-arabinopyranosyl-7-O-α-l-rhamnopyranoside (3), were isolated from the aerial parts of Urena lobata L., along with 10 known compounds (4–13). Their structures were determined based on spectroscopic methods including 1D and 2D NMR spectroscopy as well as HR-ESI-MS. |
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Keywords: | Malvaceae Urena lobata L flavonoid glycoside |
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