Phospholipase A2 Inhibitors from an Erythrina Species from Samoa

Autor: Vinod R. Hegde, Ping Dai, Mahesh Patel, Pradip R. Das, M. S. Puar, Robert W. Bryant, Jin-Keon Pai, P. A. Cox
Rok vydání: 1997
Předmět:
Zdroj: Journal of Natural Products. 60:537-539
ISSN: 1520-6025
0163-3864
DOI: 10.1021/np960533e
Popis: Three flavonoid phospholipase A 2 (PLA 2 ) inhibitors were isolated from a MeOH extract of the bark of the Samoan medicinal plant Erythrina variegata. Two of these compounds, 4'-hydroxy-3',5'-diprenylisoflavonone (abyssinone V) (1) and 3,9-dihydroxy-2,10-diprenylpterocarp-6a-ene (erycrystagallin) (3), have been previously reported as antimicrobial agents from plants belonging to other Erythrina species. The isoflavonone 4'-hydroxy-6,3',5'-triprenylisoflavonone (2) is a new compound, and its structure was determined by spectroscopic techniques. The IC 50 values for the PLA 2 enzyme were 6, 10, and 3 μM for 1-3, respectively.
Databáze: OpenAIRE