祁州漏芦中一个新的三萜皂甙

从祁州漏芦 (Rhaponticumuniflorum (L .)DC .)的根中分离得到 6个三萜皂甙 ( 1～ 6 ) ,其中化合物 3为一新的三萜皂甙 ,命名为unifloroside,其结构经 1D ,2D_NMR及化学方法鉴定为 3_O_α_L_arabinopyranosyl_urs_9( 11) ,12_dien_2 8_oicacidβ_D_glucopyranosylester。     

祁州漏芦中一个新的蜕皮甾酮

从祁州漏芦中分离得到4个已知植物蜕皮甾酮,1个地榆皂甙I以及1个新植物蜕皮甾酮。经光谱分析（IR,MS,^1HNMR,^13CNMR,DEPT,^1H,^1H-COSY,HMBC), 推定这个新天然产物为2β,3β,11α,14α,20β,23-hexahydroxy-5-cholest-7-e-6-one. 命名为异漏芦酮。     

无患子中两个新的大戟烷型三萜皂甙

从无患子科无患子(Sapindus mukorossi Gaertn.)根中分离到两个新的大戟烷型三萜皂甙Sapimukoside A (1) 和Sapimukoside B (2).运用波谱和化学方法鉴定它们的结构为3-O-α-L-鼠李吡喃糖基-(1→2)-[α-L-阿拉伯吡喃糖基-(1→3)]-β-D-葡萄吡喃糖基-21, 23R-epoxyl tirucall-7, 24R-diene-3β, 21-diol (1) 和3-O-α-L-鼠李吡喃糖基-(1→6)-β-D-葡萄吡喃糖基21, 23R-epoxyl tirucall-7, 24R-diene-3β, 21-diol (2).     

无患子中两个新的大戟烷型三萜皂甙

从无患子科无患子（Sapindus mukorossi Gaertn.)根中分离到两个新的大戟烷型三萜皂甙SapimukosideA（1）和SapimukosideB（2）。运用波谱和化学方法鉴定它们的结构为3－O－α-L鼠李吡喃糖基－（1→2）-[α-L－阿拉伯吡喃糖基－（1→3）]－β－D－葡萄吡喃糖基－21,23R－epoxyl tirucall-7,24R-diene-3β,21-diol(1)和3－O－α-L－鼠李吡喃糖基－（1→6）－β-D-葡萄吡喃糖基21,23R-epoxyl tirucall-7,24R-diene-3β,21-diol(2)。     

钟膜白头翁的一个新三萜皂甙

从钟膜白头翁(Pulsatilla campanella Fisch. ex Regel et Rilig)的根中分到1个新的三萜皂甙,命名为白头翁甙(pulsatiloside)D,其结构经光谱分析和化学方法证明为常春藤皂甙元-3-O-β-D-葡萄吡喃糖基(1→2)-β-D-半乳吡喃糖甙。     

广东冬青中的三萜及三萜皂甙成分

从广东冬青（Ｉｌｅｘ ｋｗａｎｇｔｕｎｇｅｎｓｉｓ）的叶中分离得到四个三萜皂甙和三个三萜成分,通过光谱解析及化学方法,三个三萜成分分别鉴定为齐墩果酸（１）、熊果酸（２）和常春藤皂甙元（３）;四个三萜皂甙成分分别鉴定为齐墩果酸３－Ｏ－β－Ｄ－吡喃葡萄糖基－（１→３）－α－Ｌ－吡喃阿拉伯糖甙（４）、齐墩果酸３－Ｏ－β－Ｄ－吡喃葡萄糖基－（１→２）－α－Ｌ－吡喃阿拉伯糖甙（５）、齐墩果酸３－Ｏ－β－Ｄ－     

法国产夏枯草中的两个新的乌索烷型三萜皂甙

从法国产夏枯草（ＰｒｕｎｅｌｌａｖｕｌｇａｒｉｓＬ．）的甲醇提取物中分离得到两个新的乌索烷型三萜皂甙：夏枯草甙（ｐｒｕｖｕｌｏｓｉｄｅ）Ａ和Ｂ;同时还分离到５个已知化合物：ｎｉｇａ－ｉｃｈｉｇｏｓｉｄｅＦ＿２,ｓｅｒｉｃｏｓｉｄｅ,槲皮素（ｑｕｅｒｃｅｔｉｎ）,槲皮素－３－Ｏ－葡荡糖甙（ｑｕｅｒｃｅｔｉｎ３－Ｏ－ｇｌｕｃｏｓｉｄｅ）,山奈酚－３－Ｏ－葡荡糖甙（ｋａｅｍｐｆｅｒｏｌ－３－Ｏ－ｇｌｕｃｏｓｉｄｅ）,及ａｒｊｕｎｇｌｕｃｏｓｉｄｅⅠ和ｎｉｇａ－ｉｃｈｉｇｏｓｉｄｅＦ＿１的混合物。它们的结构是通过波谱的方法证明的。     

藏玄参中的抑精三萜皂甙

从藏药植物藏玄参（ＯｒｅｏｓｏｌｅｎｗａｔｔｉｉＨｏｏｋ．ｆ．）的全草中分离到４个三萜皂甙,密蒙花甙（ｍｉｍｅｎｇｏｓｉｄｅ）Ａ和Ｂ及醉鱼草甙（ｂｕｄｄｌｅｊａｓａｐｏｎｉｎ）Ｉ和Ｉａ,另外还得到阿克甙（ａｃｔｅｏｓｉｄｅ）和６－羟基木犀草素－７－Ｏ－葡萄糖甙（６－ｈｙｄｒｏｘｙｌｕｔｅｏｌｉｎ－７－Ｏ－ｇｌｕｃｏｓｉｄｅ）。体外抑精实验表明,４个三萜皂甙均有较强的抑精活性,其中密蒙花甙Ａ和醉鱼草     

红毛五加叶的三萜皂甙

红毛五加（ＡｃａｎｔｈｏｐａｎａｘｇｉｒａｌｄｉｉＨａｒｍｓ）系五加科五加属植物,分布于河北、河南、四川、陕西、甘肃等省,有祛风湿、通关节、强筋骨、治痿痹等功效［１］。其化学成分未见报道。本文报道红毛五加叶的５个三萜皂甙（甙Ⅰ、Ⅱ、Ⅲ、Ⅳ和Ⅴ）的分离鉴定。它们均首次从该属植物发现,其结构如下：　　　　　　　　　　　　　Ｒ１　　　　　　　　　　　　　　Ｒ２　　　　　　　　Ⅰ　ｒｈａｍ－（１→２）－ａｒａ　　　　　Ｈ　　　　　　　Ⅱ　Ｈ　　　ｒｈａｍ－（１→４）－ｇｌｃ－（１→６）－ｇｌｃ　　　　　…     

多荚草中的新三萜皂甙

从石竹科植物多荚草（Ｐｏｌｙｃａｒｐｏｎ ｐｒｏｓｔｒａｔｕｍ（Ｆｏｒｓｓｋ．）Ａｓｃｈｅｒｓ．ｅｔ Ｓｃｈｗｅｉｎ．ｅｘ Ａｓｃｈｅｒｓ）中分离得到３个新的柴胡皂甙类化合物：ｐｒｏｓｔｒａｔｏｓｉｄｅ Ａ￣Ｃ（１￣３）。它们的结构通过波谱方法分别鉴定为：３－Ｏ－｛β－Ｄ－ｘｙｌｏｐｙｒａｎｏｓｙｌ－（１→２）－β－Ｄ－ｇｌｕｃｏｐｙｒａｎｏｓｙｌ－（１→４）－「β－Ｄ－ｇｌｕｃｏｐｙｒａｎｏｓｙ     

缘毛紫菀中的4个三萜皂苷

利用溶剂萃取,大孔树脂、硅胶和聚酰胺的色谱法,对缘毛紫菀的正丁醇萃取物的化学成分进行了研究,从中分离得到4个三萜皂苷,经1H-NMR、13C-NMR等现代波谱技术及化学方法分别鉴定为续断皂苷B(1)、臭瓜皂苷A(2)、三褶脉紫菀皂苷A(3)和东风菜皂苷A4(4)。化合物1为首次从该属植物中得到,化合物2、3和4为首次从缘毛紫菀中得到。     

Two New Triterpenoid Saponins from Akebia quinata （Thunb.） Decne.

Two new triterpenoid saponins, hederagenin 3-O-α-L-arabinopyranosyl-（1→〉2）-α-L-arabinopyranoside named akeboside La （compound 1）, oleanolic acid 3-O-α-L-arabinopyranosyl-（1→〉2）-β-D-glucopyranoside named akeboside Lb （compound 2）, along with five known saponins, oleanolic acid 3-O-α-L-rhamnopyranosyl-（1→〉2）-α-L- arabinopyranoside （compound 3）, hederagenin 3-O-α-L-rhamnopyranosyl-（1→〉2）-α-L-arabinopyranoside （compound 4）, oleanolic acid 3-O-β-D-xylopyranosyl-（1→〉3）-α-L-rhamnopyranosyl-（1→〉2）-α-L-arabinopyranoside （compound 5）, 3-O-α-L-rhamnopyranosyl-（1→〉2）-α-L-arabinopyranosyl oleanolic acid 28-O-α-L-rhamnopyranosyl-（1→〉4）-α-D- glucopyranosyl-（1→〉6）-β-D-glucopyranoside （compound 6）, 3-O-α-L-rhamnopyranosyl-（1→〉2）-α-L-arabinopyranosyl hederagenin 28-α-L-rhamnopyranosyl-（1→〉4）-β-D-glucopyranosyl-（1→〉6）-β-D-glucopyranoside （compound 7） were isolated from the n-butanol part of the 80% ethanol extracts of the dried stems of Akebia quinata （Thunb.） Decne. Compound 5 was isolated from plants of genus Akebia for the first time. The structures were elucidated on the basis of physicochemical properties and spectral data.     

Accumulation and Dynamic Trends of Triterpenoid Saponin in Vegetative Organs of Achyranthus bidentata

The relationship between structural features of various vegetative organs and triterpenoid saponin accumulation in Achyranthus bidentata Blume was investigated using anatomy, histochemistry and phytochemistry. The results showed that the primary and secondary structures of roots, and the structures of stems and leaves of A. bidentata, were similar to those of ordinary dicotyledonous plants. The enlargement of its roots, however, was primarily associated with growth and differentiation of tertiary structures. There were collateral medullary vascular bundles in addition to the normal vascular bundles in the stem. The tertiary structure was not only main parts in the roots of A. bidentata, but also important storage region of triterpenoid saponin in its growth and development. The stem may be the essential transport organ of triterpenoid saponin, while palisade parenchyma may be the primary synthesis location. In November, the total quantity of triterpenoid saponin and overall biomass in the roots reach a maximum level. This was the best time, therefore, to harvest the roots and corresponded to the traditional harvest period. Despite the withered appearance of leaves, stems also contained substantial amounts of triterpenoid saponin, and it was recommended that the stems of A. bidentata should be used.     

Triterpenoid Saponins from Pulsatilla cernua (Thunb.)

To investigate saponins from the roots of Pulsatilla cernua (Thunb.) Bercht. et Opiz., two new compounds together with five known triterpenoid saponins were isolated. The structures of the two new triterpenoid saponins, named cernuasides A and B, were elucidated as 3-O-[β-D-xylopyranosyl(1→2)]-[α-L-rhamnopyranosyl(1→4)]-α-Larabinopyranosyl hederagenin 28-O-β-D-glucopyranosyl ester (compound 1) and 3-O-[α-L-arabinopyranosyl(1→3)]-[α-L-rhamnopyranosyl (1→2)]-α-L-arabinopyranosyl hederagenin 28-O-β-D-glucopyranosyl ester (compound 2) by 1D, 2D-NMR techniques, ESIMS analysis, as well as chemical methods.     

朝鲜蓟叶中一个新的倍半萜内酯

从朝鲜蓟（Cynarascolyrnus）叶中分离得到2个倍半萜内酯,其中一个是新化合物,通过波谱学方法确定其结构为3β,8α,11α,13-四羟基-10（14）-愈创木烯-1α,4β,5α,6β氢-6α,12-内酯（1）。