Pongaglabol, a new hydroxyfuranoflavone, and aurantiamide acetate, a dipeptide from the flowers of Pongamia glabra

摘要: Abstract Pongaglabol, a new hydroxyfuranoflavone, and aurantiamide acetate, rarely occurring modified phenylalanine dipeptide, have been isolated together with 4 furanoflavones, karanjin, lancheolatin B, kanjone pinnatin, simple flavone, kanugin, chromenoflavanone (−)-isolonchocarpin, two furanodiketones pongamol ovalitenone, β-sitosterol from the petrol chloroform extracts of flowers Pongamia glabra . The structure pongaglabol has established as 5-hydroxyfurano(8,7-4″,5″)flavone on basis spectral chemical evidence.