New 2‘-Oxygenated Flavonoids from Andrographis affinis

التفاصيل البيبلوغرافية
العنوان: New 2‘-Oxygenated Flavonoids from Andrographis affinis
المؤلفون: Reddy, M. V. Bhaskar, Kishore, P. H., Rao, C. V., Gunasekar, D., Caux, C., Bodo, B.
المصدر: Journal of Natural Products; February 2003, Vol. 66 Issue: 2 p295-297, 3p
مستخلص: Three new 2‘-oxygenated flavonoids, (2S)-5,7,2‘,3‘,4‘-pentamethoxyflavanone (1), 5-hydroxy-7,8,2‘,5‘-tetramethoxyflavone (2), and echioidinin 2‘-O-β-d-(6‘ ‘-O-acetyl) glucopyranoside (3), together with four known flavonoids, 7-O-methyldihydrowogonin, 7-O-methylwogonin, skullcapflavone I 2‘-methyl ether, and skullcapflavone I, and two diterpenoids, andrograpanin and 14-deoxy-11,12-didehydroandrographolide, were isolated from the whole plant of Andrographis affinis. The structures were elucidated by spectral and chemical studies.
قاعدة البيانات: Supplemental Index