Title
Flavanoids from Caesalpinia pulcherrima
Author
K.V.N.S Srinivas, Y Koteswara Rao, I Mahender, Biswanath Das, K.V.S Rama Krishna, K Hara Kishore, U.S.N Murty
Year
2003
Journal
Phytochemistry
Abstract
Two new flavanoids, 5,7-dimethoxy-3′,4′-methylenedioxyflavanone and isobonducellin along with 2′-hydroxy-2,3,4′,6′-tetramethoxychalcone, 5,7-dimethoxyflavone and bonducellin were isolated from the aerial parts of Caesalpinia pulcherrima. The structures of the compounds were settled mainly by interpretation of their 1D and 2D NMR spectra. Isobonducellin was found to be a homoisoflavanoid containing a cis (Z)-double bond. Antimicrobial activity of the new compounds was evaluated.
Instrument
J-715
Keywords
Circular dichroism, Stereochemistry, Absolute configuration, Pharmaceutical