Chemical Constituents of Ampelopsis japonica

Objective: To investigate the chemical constituents of Ampelopsis japonica.Method: Multichromatographic methods including Silica gel column chromatography and Sephadex LH-20 gel column chromatography were employed for the isolation and purification.The structures were identified on the basis of chemical evidence and spectral data.Result: Fifteen compounds were isolated and identified as lupeol(1),βsitosterol(2),physeion(3),β-sitosterol linoleate(4),paeonol(5),4-p-menthane-1,8-diol(6),vanillin(7),α-tocopherol(8),α-tocopheryl quinone(9),α-methyl-pyrrole-ketone(10),botcinins D(11),5α,8αepidioxyergosta-6,22-dien-3β-ol(12),4-keto pinoresinol(13),bungein A(14),lasiodiplodin(15).Conclusion: Compounds 4-15 are obtained from this plant for the first time.