RESUMEN
Phytochemical analysis of the root bark of Bauhinia variegata Linn yielded a new flavanone, (2S)-5,7-dimethoxy-3',4'-methylenedioxyflavanone (1) and a new dihydrodibenzoxepin, 5,6-dihydro-1,7-dihydroxy-3,4-dimethoxy-2-methyldibenz [b,f]oxepin (2) together with three known flavonoids (3-5). The structures of the new compounds were determined on the basis of spectral studies.
Asunto(s)
Bauhinia/química , Dibenzoxepinas/química , Dibenzoxepinas/aislamiento & purificación , Flavanonas/química , Flavanonas/aislamiento & purificación , Espectroscopía de Resonancia Magnética , Estructura Molecular , Corteza de la Planta/química , Raíces de Plantas/químicaRESUMEN
Phytochemical investigation of the roots and aerial parts of Andrographis paniculata Nees yielded a new flavone, 5-hydroxy-7,2',6'-trimethoxyflavone and an unusual 23-carbon terpenoid, 14-deoxy-15-isopropylidene-11,12-didehydroandrographolide together with five known flavonoids and four known diterpenoids. The structures of these compounds were determined on the basis of spectral and chemical studies.
