【化学成份】
西藏胡黄连根茎中含有环烯醚萜糖甙:胡黄连苦甙(picroside)Ⅰ、Ⅱ、Ⅲ、[1],桃叶珊瑚甙(aucubin),梓醇(catalpol);酚甙:盾叶夹竹桃甙(androsin);葫芦素类糖甙:25-乙酰氧基-2β-吡喃葡萄糖氧基-3,16,20-三羟基-9-去甲羊毛甾-5,23-二烯-22-酮(25-acetoxyl-2β-glucopyranosyloxy-3,16,20-trihydroxy-9-methyl-19norlanosta-5,23-diene-23-one),2β-吡喃葡萄糖氧基-3,16,20,23-四羟基-9-甲基-19-去甲羊毛甾-5,24-二烯(2β-glucopyranosyloxy-3,16,20,22-tetrahydroxy-9-methyl-19-norlanosta-5,24-diene),还含香草酸(vanillic acid),桂皮酸(cinnamic acid),阿魏酸(ferulic acid)[1]及D-甘露醇(D-man-nitol)[2]。
胡黄连根中含D-甘露醇,香草酸[3][3],茶叶花宁(apocynin)[4],胡黄连苦甘Ⅱ[5],胡黄连甙(kutkoside)[7],6-阿魏酰基梓醇(6-vanilloylcatalpol),婆婆纳甙(veronicoside),米内甙(minecoside),支杉甙(picein),盾叶荚生桃甙[8],已乙酰基-6′-桂皮酰基梓醇(panta-acetyl-6-vaniloyl catalplol),六乙酰基梓醇(hex-aacetyl catalpol)[9],还含戎芦素类糖甙成分:25-乙酰氧基-2β-葡萄糖氧基-3,16,20-三羟基-9-甲基-19-去甲-5,23-羊毛甾二烯-22-酮(25-acetoxy-2β-glucosyloxy-3,16,20-trihydroxy-9-methyl-19-norlanosta-5,22-dienen-22-one)[10],葫芦苦素B-2-O-葡萄糖甙即海绿甾甙Ⅰ(cucurbitacin B-2-O-glucoside arvenin Ⅰ),23,24-二氢葫芦苦素B-2-O-葡萄糖甙(23,24-dihydrocucurbitacin B2-O-glucoside),2-β-glucosyolxy-3,16,20,25-四羟基-9-基-19-去甲-5,23-羊毛甾二烯-22-酮(2-β-glucosyloxy-3,16,20,25-tetrahy-droxy-9-methyl-19-norlanosta-5,23,diene-22-one),2-β-葡萄糖氧基-3,16,20,25-四闳基-9-甲基-19-去甲-5-羊毛甾烯-22-酮(2-β-glucosyloxy-3,16,20,25-tetrahydroxy-9-methyl-19-norlanosta-5-ene-22-one),戎芦苦素Q-2-O-葡萄糖甙(cucurbitacin Q-2-O-glu-coside),去乙酰氧基葫芦苦素B-2-O-葡萄糖甙(deacetoxy-cucur-bitacin B-2-O-glucoside)[11],海绿甾甙(arvenin)Ⅱ2-β-葡萄糖氧基-3,16,20,25-四羟基-9-甲基-19-去甲-5,23-羊毛甾二烯-11,22-二酮即莫须有芦苦素O-2-O-β-葡萄糖甙(2-β-glucosyloxy-3,16,20,25-tetrahyolroxy-9-methyl-19-norlanosta-5,23-diene-11,11,22-dione,cucurbitacin O-2-O-β-glucoside),2-β葡萄糖氧基-16,20-二羟基-9-甲基--19-去甲-5,24-羊甾二烯-3,11,22-三酮(2-β-glu-cosyloxy-16,20-dihydroxy-9-methyl 19-norlanosta-5,24-diene-3,11,22-trione)[12],2-β-葡萄糖氧基-16,20,22-三羟基-9-甲基-19-去甲-5,24-羊乞求甾二烯-3,11-二酮(2-β-glucosyloxy-16,20,22-tri-hydroxy-9-methyl-19-norlanosta-5,24-diene-3,11-dione),海绿甾甙Ⅲ[13],25-乙酰氧基-2-β-吡喃葡萄糖氧基-3,16-二羟基-9-甲基-19-去甲-5,23-羊毛甾二烯-22-酮(25-acetyloxy-2-β-glucopyra-nosyloxy-3,16-dihydroxy-9-methyl-19-norlanosta-5,23-diene-22-one),25-乙酰氧基-2-β-D-吡喃葡萄糖氧基-3,16,20-三羟基-9-甲基,-19-去甲-5,23(Z)-羊毛甾二烯-22-酮(25-acetyloxy-2-β-D-glu-copyranosyloxy-3,16,20-trihydroxy-9-methyl-19-norlanosta-5,23(Z)-diene-22-one),25-乙酰氧基-2-β-D-吡喃葡萄糖氧基-3,16,20-三羟基-9-甲基-19-去甲-5-羊毛甾烯-22-酮(25-acetyloxy-2-β-D-glucopyranosyloxy-3,16,20-trihydroxy-9-methyl-19-norlanosta-5-ene-22-one),2-β-D-吡喃葡萄糖氧基-3,16,20-三羟基-9-甲基-19-去甲-5,24-羊毛甾二烯-
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