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Journal of Chinese Pharmaceutical Sciences ›› 2024, Vol. 33 ›› Issue (7): 659-665.DOI: 10.5246/jcps.2024.07.049

• Original articles • Previous Articles    

Flavonoid from the twigs and leaves of Erythrina variegata

Yongchun Gao, Xi Yang, Liqin Wang*()   

  1. School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, Yunnan, China
  • Received:2023-12-03 Revised:2024-01-06 Accepted:2024-03-06 Online:2024-07-30 Published:2024-07-30
  • Contact: Liqin Wang
  • Supported by:
    National Natural Science Foundation of China (Grant No. 32060099).

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, 47, and 910, other compounds were isolated from E. variegata for the first time.

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

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