Flavonoid from the twigs and leaves of Erythrina variegata

doi:10.5246/jcps.2024.07.049

Abstract

Abstract:

In the present study, 17 flavonoids, including 9 prenylated isoflavones, 4 isoflavones, 3 flavanones and 1 flavone, were isolated from the twigs and leaves of Erythrina variegata. By NMR spectroscopic means and comparision with the data in the leteratures, their structures were elucidated to be euchrenone b₁₀(1), senegalensin (2), erythrinin C (3), scandenone (4), osajin (5), alpinum isoflavone (6), isoerysenegalensein E (7), erysenegalensein E (8), diprenylgenistein (9), abyssinone V (10), abyssinone V 4′-methyl ether (11), 4′,7-dihydroxyflavanone (12), 3′,5,7-trihydroxy-4′-methoxyisoflavone (13), 2′,4′,5,7-tetrahydroxyisoflavone (14), genistein (15), daidzein (16), and apigenin (17). Except for compounds 1, 4–7, and 9–10, other compounds were isolated from E. variegata for the first time.

Key words: Erythrina variegata, Erythrina, Prenylated isoflavone, Isoflavone

Supporting:

Yongchun Gao, Xi Yang, Liqin Wang. Flavonoid from the twigs and leaves of Erythrina variegata[J]. Journal of Chinese Pharmaceutical Sciences, 2024, 33(7): 659-665.

Figures/Tables 1

References 19

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