Chemical constituents from the aerial roots of Ficus microcarpa

Objective:To study the chemical constituents of the aerial roots of Ficus microcarpa.Methods:The compounds were isolated and purified by column chromatographic methods on silica gel and Sephadex LH-20.Their structures were elucidated by physicochemical properties and spectral data.Results:12 compounds were isolated from the 95% ethanol extract.Their structures were idenified as 3β-hydroxy-11-oxours-12-ene(1),3β-acetoxy-11-oxours-12-ene(2),oleanic acid(3),3β-hydroxy-oleana-11,13(18)-dien-28-oic acid(4),betulinic acid(5),pyracrenic acid(6),platanic acid(7),isowigtheone(8),myrsininone A(9),derrone(10),alpinumisoflavone(11) and caffeic acid methyl ester(12),respectively.Conclusion:Compounds 4,6,12 are obtained from this genus for the first time,compounds 1,7~11 are isolated from this plant for the first time.