目的对珠子参[PanaxjaponicusC.A.Mey.var.major(Buck.)C.Y.Wu et K.M.Feng]根茎的化学成分进行研究。方法采用硅胶柱色谱进行分离纯化,根据理化性质和波谱数据进行结构鉴定。结果分离得到8个化合物,分别鉴定为苯甲酸(benzoin acid,1)、豆甾醇(stigmasterol,2)、齐墩果酸(oleanolic acid,3)、胡萝卜苷(daucosterol,4)、齐墩果酸-28-O-β-D-吡喃葡萄糖苷(oleanolicacid-28-O-β-D-glucopyranoside,5)、齐墩果酸-3-O-β-D-吡喃葡萄糖基(1→2)-β-D-(6′-丁酯)吡喃葡萄糖醛酸苷(oleanolic acid-3-O-β-D-glucopyranoside(1→2)-β-D-glucorunopyranosy-6′-O-butylester,6)、竹节参皂苷IVa(chikusetsusaponinⅣa,7)、人参皂苷Ro(ginsenoside,8)。结论化合物6为新化合物,化合物1、2为首次从该种植物中分离得到。 Objective To study the chemical constituents of rhizomes of Panax japonicus C.A. Mey.var.major (Buck.) C.Y. Wu et K.M. Feng]. Methods The compounds were isolated and purified by silica gel column chromatography. Their structures were elucidated on the basis of physicochemical properties and spectral data. Results Eight compounds were isolated and identified as benzoin acid (1), stigmasterol (2), oleanolic acid (3), daucosterol (4), oleanolic acid -28-O-β-D-glucopyranoside (5), oleanolic acid -3-O-β-D-glucopyranosyl ) -β-D- (6’-Butyl Ester) oleanolic acid-3-O-β-D-glucopyranoside (1 → 2) -β-D-glucorunopyranosy-6’-O-butylester , 6), Chikusetsus aponin IVa (7) and ginsenoside (8). Conclusion Compound 6 is a new compound. Compounds 1 and 2 were isolated from this plant for the first time.