从水杨梅根中分得4个成分，经光谱和化学方法鉴定为quinovicacid-3β-O-（3＇，4＇-iso-propylidene）－β-D－fucopvranoside（Ⅰ）quinovicacid－3β0－O（2＇，3＇－O－isopropylidene）α-O-isopropylidene）-α-L-rhamnopyranoside（Ⅱ），quinovicacid-3β-O－β－D－fucopyranodise（Ⅲ）quinovicacid-3M），quinovicacid－3β-O-β-D－glu－copyranosyl-（28→）-β-D-glucopyranosyleste（Ⅳ），其中Ⅰ和Ⅱ为新化合物。

Four compounds,quinovic acid-3β-O-(3',4'-isopropylidene)－β-D－fucopvranoside（ Ⅰ） quinovic acid -－3β0－O( 2' ， 3'－O－isopropylidene)-α-L-rhamnopyranoside（Ⅱ）quinovic acid-3β-O－β－D－fucopyranodise(Ⅲ)quinovic acid－3β-O-β-D－glu－copyranosyl -(28→)-β-D-glucopyranosyl ester(Ⅳ)were isolatedfrom roots of Adina rubell Hance.Their structures were establishedby chemical methods and spectral analysis.Among them.Ⅰand Ⅱ were new compounds ,and Ⅲ exhibited immuno-modulating activity.