目的:研究小叶榕气生根的化学成分。方法:采用硅胶柱和SephadexLH-20柱色谱方法进行分离纯化,根据理化性质与波谱数据鉴定化合物结构。结果:分离鉴定了12个化合物,分别为:3β-羟基-11-羰基.乌苏烷-12-烯(1)、3β-乙酸酯-11-羰基-乌苏烷-12-烯(2)、齐墩果酸(3)、3β-羟基-齐墩果烷-11,13(18)-二烯-28酸(4)、白桦酸(5)、pyracrenicacid(6)、platanicacid(7)、isowigtheone(8)、myrsininoneA(9)、derrone(10)、alpinumisoflavone(11)、原儿茶酸甲酯(12)。结论:化合物4、6和12为首次从榕属植物中分离得到;化合物1、7~11为首次从小叶榕中分离得到。
Objective : To study the chemical constituents of the aerial roots of Ficus microcarpa. Methods :The compounds were i- solated and purified by column chromatographic methods on silica gel and Sephadex LH-20. Their structures were elucidated by physi- cochemical properties and spectral data. Results:12 compounds were isolated from the 95% ethanol extract. Their structures were idenified as 3/3-hydroxy-11-oxours-12-ene ( 1 ), 3/3-acetoxy-11-oxours-12-ene (2), oleanic acid (3), 3~-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.