中文摘要：

从珠子参根茎中分离得到7个化合物.利用核磁共振、质谱和红外等手段,并结合其理化性质,鉴定了其结构,它们分别是24（R）-珠子参苷R1、6-O-[β-D-吡喃葡萄糖基（1→2）-β-D-吡喃葡萄糖基]-20-O-[β-D-吡喃葡萄糖基（1→4）-β-D-吡喃葡萄糖基]-20（S）-原人参三醇、6″-乙酰基-人参皂苷Rd、人参皂苷Rf、竹节参皂苷Ⅳa、人参皂苷Rd和竹节参皂苷Ⅴ.其中,24（R）-珠子参苷R1和6-O-[β-D-吡喃葡萄糖基（1→2）-β-D-吡喃葡萄糖基]-20-O-[β-D-吡喃葡萄糖基（1→4）-β-D-吡喃葡萄糖基]-20（S）-原人参三醇为2个新化合物,6″-乙酰基-人参皂苷Rd和人参皂苷Rf为首次从珠子参根茎中得到.

英文摘要：

Seven compounds were isolated fromthe roots of Panax japonicus C.A.Mey.var.major（Burk.）C.Y.Wu et K.M.Feng.They were purified by chromatographic method.The structures of the compounds were deduced by spectroscopic methods as 24（R）-majoroside R1（1）,6-O-[β-D-glucopyranosyl-（1→2）-β-D-glucopyranosyl]-20-O-[β-D-glucopyranosyl-（1→4）-β-D-glucopyranosyl]-20（S）-protopanaxatriol（2）,6″-acetyl-ginsenoside-Rd（3）,ginsenoside Rf（4）,chikusetsusaponin-Ⅳa（5）,ginsenoside Rd（6）,Chikusetsusaponin-Ⅴ（7）.Among them,24（R）-majoroside R1 and-O-[β-D-glucopyranosyl-（1→2）-β-D-glucopyranosyl]-20-O-[β-D-glucopyranosyl-（1→4）-β-D-glucopyranosyl]-20（S）-protopanaxatriol are new compounds;6″-acetyl-ginsenoside-Rd and ginsenoside Rf are isolated from Panax japonicus C.A.Mey.var.major（Burk.）C.Y.Wu et K.M.Feng for the first time.