The chemical Constituents in the n-butanol Extracts of Cheanomeles speciosa(Sweet) Nakai

Objective To investigate the chemical constituents in the n-butanol extracts of Chaenomeles speciosa. Methods Multi-chromatographic methods including Silicagel column chromatography and Sephadex LH-20 gel permeation were employed for the isolation and purification.The structures were identified on the basis of chemical evidence and spectral data. Results Eight compounds were isolated and identified as 1,2,4-Benzenetriol(1),gallic acid(2),epi——quinide(3),5-Hydroxynicotinic acid(4),p-coumaric acids glucosyl esters(5),p-hydroxybenzoic acid glucoside(6),(6S-9R)-roseoside(7),Vomifolioll-O-β-D-xylopyranosy-6-O-β-D-glucopyranoside(8). Conclusion Compounds 1～6 were obtained from this genus for the first time.