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从石竹科植物金铁锁(Psammosilenetunicoides W.C.Wu et C.Y.Wu)根部分离得到4个齐墩果酸型五环三萜皂苷.它们的结构通过波谱和化学方法分别鉴定为:3-O-β-D-galactopyranosyl-(1→2)-β-D-6-O-methylglucuronopyranosyl-quillaic acid 1),3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-glucuronopyranosyl-quil