大叶骨碎补

根茎中含三萜成分：骨碎补酸(davallic acid)，24-去甲羊齿-4(23)，9(11)-二烯(24-norferna-4(23)，9(11)-diene］，何帕-21-烯(hop-21-ene)，何帕-22(29)-烯［hop-22(29)-ene］，新何帕-12-烯(neohop-12-ene)；黄烷-3-醇糖甙及原矢车菊素糖甙成分：左旋-表儿茶精-3-O-β-D-吡喃阿洛糖甙(epicate-chin-3-O-β-D-allopyranoside)，左旋儿茶精-3-O-β-D-吡喃阿洛糖甙(catechin-3-O-β-D-allopy ranoside)，左旋表儿茶精-3-O-β-D-(2"-O-香草酰)吡喃阿洛糖甙(epicatechin-3-O-β-D-(2"-O-vanillyl)allopyranoside］，左旋一表儿茶精-3-O-β-D-(3"-O-香草酰)吡喃阿洛糖甙［epicatechin-3-O-β-D-(3"-O-vanillyl)allopyranoside］，原矢车菊素β-2，3"-O-D-β-吡喃阿洛糖甙(procyanidin β-2，3"-O-β-D-allopyranoside)，表阿福儿茶精-(4β→8)-表儿茶精-3-O-β-D-吡喃阿洛糖甙［epiafzelechin-(4β→8)-epicatechin-3-O-β-D-allopyranoside］，表儿茶精-(4β→8)-表儿茶精(4β→8)-儿茶精-3-O-β-D-吡喃阿洛糖甙［epicatechin-(4β→8)-epicatechin-(4β→8)-catechin 3-O-β-D-allopyranoside］，原矢车菊素(procyanidin)，原矢车菊素三聚物(trimeric procyanidin)；4β-羧甲基-(-)-表儿茶精(4β-carboxymethyl-(-)-epicatechin］及其钾、钠盐；4β-羧甲基-(-)-表儿茶精甲酯［4β-carboxymethyl-(-)-epicatechin methylester］，表儿茶精-(4β→8)-4β-羧甲基表儿茶精［epicatechin-(4β→8)-4β-carboxymethylepicatechin］及其钾、钠盐，表儿茶精-(4β→6)-表儿茶精-(4β→8)-表儿茶精-(4β→6)-表儿茶精［epicatechin-(4β→6)-epicatechin(4β→8)-epicatechin-(4β→6)-epicatechin］；叶子中含有左旋-表儿茶精-3-O-β-D-吡喃阿洛糖甙，左旋-表儿茶精-3-O-β-D-(2"-反式-桂皮酰基)-吡喃阿洛糖甙(epicatechin-3-O-β-D-(2"-trans-cinnamoyl)-allopyranoside〕和左旋-表儿茶精-3-O-β-D-(3"-反式-桂皮酰基)-吡喃阿洛糖甙(epicatechin-3-O-β-D-(3"-trans-cinnamoyl)-allopyranoside］。