title: Flavanoids from Caesalpinia pulcherrima.
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.
authors.affiliation: Indian Institute of Chemical Technology, Hyderabad-500 007, India.
authors.forename: K V N S
authors.initials: KV
authors.lastname: Srinivas
authors.forename: Y
authors.initials: Y
authors.lastname: Koteswara Rao
authors.forename: I
authors.initials: I
authors.lastname: Mahender
authors.forename: Biswanath
authors.initials: B
authors.lastname: Das
authors.forename: K V S
authors.initials: KV
authors.lastname: Rama Krishna
authors.forename: K
authors.initials: K
authors.lastname: Hara Kishore
authors.forename: U S N
authors.initials: US
authors.lastname: Murty
mesh_terms: D029911:Caesalpinia / Q000737:chemistry*; D005419:Flavonoids / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry
chemical_list: D005419:Flavonoids