A New Cyano-compound from Rhodiola kirilowii

Objective To study the chemical constituents of Rhodiola kirilowii.Methods The compounds were separated and purified by various chromatographic techniques and their structures were elucidated on the basis of physicochemical properties and spectroscopic methods.Results Five compounds were purified and their structures were identified as 4-(β-D-glucopyranosyloxy)-3-hydroxy-2-(hydroxymethyl)-butanenitrile(1),epicatechin(2), arbutin(3),rutin(4),andβ-D-glucose(5).Conclusion Compound 1 is a new cyano-compound and other compounds are isolated from the plant for the first time.

珠芽景天的化学成分研究(Ⅱ)

目的研究珠芽景天Sedum bulbiferum全草的化学成分。方法综合运用D101大孔树脂柱色谱、反复硅胶柱色谱、SephadexLH-20凝胶柱色谱等色谱技术进行分离,并运用MS、NMR技术对分离得到的化合物进行结构鉴定。结果从珠芽景天全草70%乙醇提取物中分离得到13个化合物,分别鉴定为4-羟基-3-甲氧基苯基-β-D-吡喃葡萄糖苷(1)、丁香酸葡萄糖苷(2)、2-(3,4-二甲氧基苯基)甲基-β-D-葡萄糖苷(3)、橄榄树脂素(4)、环橄榄树脂素-9-O-β-D-吡喃葡萄糖苷(5)、(-)-橄榄树脂素9′-O-β-D-吡喃葡萄糖苷(6)、(-)-二氢去氢二松柏醇-9-O-β-D-吡喃葡萄糖苷(7)、bluemenol A(8)、euodionoside D(9)、脑苷酯B(10)、腺苷(11)、尿苷(12)、4-(β-D-glucopyranosyloxy)-3-hydroxy-2-(hydroxymethyl)-butanenitrile(13)。结论所有化合物均首次从珠芽景天中分离得到,其中化合物1~5,8~13为首次从景天属植物中分离得到。