中药白头翁地上部分的三萜皂苷成分

为了研究白头翁地上部分的三萜皂苷成分，采用不同色谱技术对白头翁地上部分乙醇提取物的正丁醇部位进行分离纯化，并用波谱和化学方法鉴定化合物的结构。从正丁醇部位中共分离得到7个三萜皂苷类化合物，其结构分别被鉴定为2β-羟基常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖酯苷(1)、3-O-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖酯苷(2)、3-O-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖齐墩果酸28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖酯苷(3)、3-O-α-L-吡喃鼠李糖(1→2)［β-D-吡喃葡糖(1→4)］-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖酯苷(4)、3-O-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖酯苷(5)、常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖酯苷(6)及常春藤皂苷元3-O-α-L-吡喃鼠李糖(1→2)-α-L相似文献   

卵叶银莲花全草中的新三萜皂苷

目的　对卵叶银莲花（Anemone begoniifolia Lévl.et Vant）全草的的三萜皂苷成分进行分离和结构鉴定。方法　通过正相和反相硅胶柱色谱分离甲醇提取物中的三萜皂苷;利用各种波谱技术并结合化学降解方法鉴定其化学结构。结果　分离鉴定了1个二元混合物和2个单体,二元混合物中的2个成分分别鉴定为3-O-β-D-吡喃葡糖(1→2)-α-L-吡喃阿拉伯糖基-齐墩果酸-28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖苷(1)和3-O-β-D-吡喃葡糖(1→3)-α-L-吡喃阿拉伯糖基-齐墩果酸-28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖苷(2),2个单体分别鉴定为23-O-丙二酸单甲酯单酰基-常春藤配基-28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖苷(3)和3-O-丙二酸单甲酯单酰基-常春藤配基-28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡糖(1→6)-β-D-吡喃葡糖苷(4)。结论　化合物2,3和4为新三萜皂苷,分别命名为卵叶银莲花苷A,B和C。     

东北刺人参叶中四种新三萜皂苷的分离与结构鉴定

目的研究东北刺人参的三萜皂苷化学成分。方法采用大孔树脂、硅胶、ODS柱色谱分离纯化，经理化常数、光谱学方法鉴定结构。结果分离得到了4个新三萜皂苷，其结构分别鉴定为3-O-β-D-吡喃葡糖基3β，23-二羟基羽扇豆-20(29)-烯-28-酸-28-O-α-L-吡喃鼠李糖基(1→4)-β-D-吡喃葡糖基(1→6)-β-D-吡喃葡糖苷(1);3-O-β-D-吡喃葡糖基常春藤皂苷元-28-O-α-L-吡喃鼠李糖基(1→4)-β-D-吡喃葡糖基(1→6)-β-D-吡喃葡糖苷(2);3-O-β-D-吡喃葡糖基3β-羟基齐墩果-9(11)，12-二烯-28-酸-28-O-α-L-吡喃鼠李糖基(1→4)-β-D-吡喃葡糖基(1→6)-β-D-吡喃葡糖苷(3);3α-羟基齐墩果-12-烯-23，28-二酸-28-O-α-L-吡喃鼠李糖基(1→4)-β-D-吡喃葡糖基(1→6)-β-D-吡喃葡糖苷(4)。结论化合物1～4均为新三萜皂苷，首次从东北刺人参叶中分得。     

Two unusual oleanane saponins from Anemone anhuiensis

From the rhizomes of Anemone anhuiensis (Ranunculaceae), two new triterpene saponins, anhuienosides A (1) and B (2), were isolated. These compounds are glycosylated at C-23 and their structures were elucidated as hederagenin 23-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranoside (1) and 23-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl hederagenin 28-O-alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranosyl ester (2) on the basis of chemical and spectral evidence.     

Triterpenoid saponins from Stauntonia chinensis

A new triterpenoid saponin, named stauntoside A (1) along with four known saponins (2,3,4,5) was isolated from Stauntonia chinensis DC., (Lardizabalaceae). Their structures were elucidated by spectroscopic analysis and chemical methods as 3-O-alpha-L-arabinopyranosyl-30-norhederagenin -28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranosyl ester (1), 3-O-alpha-L-arabinopyranosyl-30- norhederagenin-28-O-alpha-L-rhamnopyranosyl-(1 --> 4)-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranosyl ester (2), 3-O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl-30-norhederagenin-28-O-alpha-L- rhamnopyranosyl-(1 --> 4)-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranosyl ester (3), 3-O-alpha-L- arabinopyranosyl-hederagenin-28-O-alpha-L-rhamnopyranosyl-(1 --> 4)-beta-D-glucopyranosyl-(1 --> 6)-beta-D- glucopyranosyl ester (4), 3-O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl-hederagenin -28-O-alpha-L-rhamnopyranosyl-(1 --> 4)-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranosyl ester (5). The (1)H and (13)C NMR data for Glycoside L-G1 or Sinofoside A are paradox in the reported before. Thus, the structure elucidation of saponin 2, known as Glycoside L-G1 or Sinofoside A, was discussed and the unambiguous assignments were given.     

川续断中的新三萜皂甙

从川续断(Dispsacus asper Wall.)根的乙醇提取物中得到二个新三萜皂甙(Ⅶ和Ⅷ)。根据光谱分析、化学反应及双向高效薄层层析结果,证明其结构分别为:3-O-β-D-吡喃葡萄糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖常春藤皂甙元28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙和3-O-α-L-吡喃鼠李糖(1→3)-β-D-吡喃葡萄糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖-常春藤皂甙元28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙。     

白木通中一个新的三萜皂苷类化合物

目的研究木通科植物白木通藤茎的化学成分。方法通过反复硅胶柱色谱、ODS柱色谱和重结晶等方法进行分离纯化，根据化合物的理化性质和波谱数据鉴定结构。结果从白木通藤茎70%乙醇提取物中分离得到6个化合物。分别鉴定为2α,3β,23-trihydroxyolean-12-en-28-oic acid =O-β-D-xylopyranosyl-(1→3)-O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester (I), 2α,3β,23-trihydroxyurs-12-en-28-oic acid O-β-D-xylopyranosyl-(1→3)-O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester (II), 2α,3β,23-trihydroxyolean-12-en-28-oic acid O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester (III), 2α,3β,23-trihydroxyurs-12-en-28-oic acid O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester (IV), 2α,3β,23-trihydroxyolean-12-en-28-oic acid O-β-D-glucopyranosyl ester (V), 2α,3β,23-trihydroxyurs-12-en-28-oic acid O-β-D-glucopyranosyl ester (VI)。结论化合物II为新化合物，命名为mutongsaponin C，其他均为首次从该植物藤茎中分离得到。     

Anticomplement activities of oleanolic acid monodesmosides and bisdesmosides isolated fromTiarella polyphylla

Seven known oleanolic acid glycosides (1-7) were isolated from the MeOH extract of Tiarella polyphylla. The structures were identified to be 3-O-(beta-D-glucopyranosyl) oleanolic acid (1), 3-O-[beta-D-glucopyranosyl-(1-->3)-beta-D-glucopyranosyl] oleanolic acid (2), 3-O-[beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl] oleanolic acid (3), 3-O-[beta-D-glucopyranosyl-(1-->3)-beta-D-glucopyranosyl] oleanolic acid 28-O-beta-D-glucopyranosyl ester (4), 3-O-[beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl] oleanolic acid 28-O-beta-D-glucopyranosyl ester (5), 3-O-[a-L-rhamnopyranosyl-(1-->3)-beta-D-glucuronopyranosyl] oleanolic acid (6), and 3-O-[alpha-L-rhamnopyranosyl-(1-->3)-beta-D-glucuronopyranosyl] oleanolic acid 28-O-beta-D-glucopyranosyl ester (7) on the basis of physicochemical and spectral data. These triterpene glycosides were tested for the anticomplement activity and hemolytic activity. Bisdesmosidic saponins, 4, 5, and 7, showed anticomplement activity; in contrast, monodesmosidic saponins, 1-3, and 6, showed direct hemolytic activity. Methyl esterified monodesmosidic saponins showed anticomplement activity at a low concentration and hemolytic activity at a high concentration.     

A triterpenoid saponin from Albizia julibrissin

A triterpenoid saponin (1) was obtained from the stem barks of Albizia julibrissin Durazz. Its structure was elucidated as 3-O-[beta-D-xylopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl-(1 --> 6)-beta-D-glucopyranosyl]-21-O-[(6S)-2-trans-2-hydroxymethyl-6-methyl-6-O-beta-D-quinovopyranosyl-2, 7-octadienoyl]-16-deoxy-acacic acid 28-O-beta-D-glucopyranosyl-(1 --> 3)-[alpha-L-arabinofuranosyl-(1 --> 4)]-alpha-L-rhamnopyranosyl-(1 --> 2)-beta-D-glucopyranosyl ester (1), named as Julibroside J26, based on the chemical and spectral methods.     

朝鲜白头翁的三萜皂苷成分研究

目的　研究朝鲜白头翁［Pulsatilla cernua(Thunb.) Bercht. et Opiz.］ 根茎的化学成分。 方法　朝鲜白头翁根茎的乙醇提取物经大孔树脂、硅胶、ODS柱以及HPLC分离得到6个化合物, 通过波谱(1H,¹³CNMR,FAB-MS等)分析和化学方法进行结构鉴定。结果　6个化合物分别被鉴定为pulsatilla saponin A(1), 常春藤皂苷元3-O-β-D-吡喃葡糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖苷(2), pulsatilla saponin D(3), dipsacoside B(4), 3-O-α-L-吡喃鼠李糖(1→2)［β-D-吡喃葡糖(1→4)］-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-β-D-吡喃葡糖酯苷(5)和胡萝卜苷(6)。 结论　5为新化合物, 命名为朝鲜白头翁丙苷(cernuoside C)。 2,4和6为首次从朝鲜白头翁中分离获得。     

A new lupane-triterpene glycoside from the leaves of Acanthopanax gracilistylus

A new and two known lupane-triterpene glycosides were isolated from the hot MeOH fraction of the leaves of Acanthopanax gracilistylus W. W. Smith. Based on the physical properties and spectroscopic data, their chemical structures were determined as acankoreoside A (1), acankoreoside D (2), and 3alpha-hydroxy-lup-23-al-20(29)-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester (3), respectively. To our best knowledge, compound 3 appears to be novel, which was named as wujiapioside A.     

川续断中皂甙Ⅸ和Ⅹ的结构研究

从川续断(Dipsacus asper Wall.)根的乙醇提取物中得到二个新三萜皂甙(Ⅸ和Ⅹ),根据光谱分析和化学反应,其结构分别确定为3-O-[β-D-吡喃木糖(1→4)-β-D-吡喃葡萄糖(1→4)][α-L-吡喃鼠李糖(1→3)]-β-D-吡喃葡萄糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖-常春藤皂甙元(Ⅸ)及其28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙(Ⅹ)。     

野木瓜甙YM10和YM12的结构

从野木瓜(Stauntonia chinensis DC.)中分离得到二个去甲五环三萜皂甙化合物,经化学和光谱分析,分别鉴定为3-O-α-L-吡喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖-30去甲齐墩果-12,20(29)-二烯-28-羧酸-28-O-α-L-呲喃鼠李糖-(1→4-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖酯,命名为野术瓜甙YM10(Ⅰ)和3-O-α-L-呲喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖-30-去甲齐墩果-12,20(29)-二烯-28-羧酸-28-O-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖酯,命名为野木瓜甙YM₁₂(Ⅱ)。Ⅰ和Ⅱ均系首次从植物中得到的新化合物。     

Chemical constituents from the roots of Biondia chinensis

Two new triterpenoid saponins, biondianosides F and G, together with 13 known compounds, were isolated from the ethanolic extract of the roots of Biondiachinensis Schltr. (Asclepiadaceae). Their structures were characterized as 3-O-beta-D-glucopyranosyl-2alpha,3beta-dihydroxyurs-12-en-28-oic acid-beta-D-glucopyranosyl-(1-->2)-[beta-D-glucopyranosyl-(1-->6)]-beta-D-glucopyranosyl ester (biondianoside F) and 3-O-beta-D-glucopyranosyl-2alpha,3beta,23-trihydroxyolean-12-en-28-oic acid-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl ester (biondianoside G) by spectral and chemical evidence.     

Two new triterpenoid saponiins from Adina pilulifera

Two new triterpenoid saponins, 3beta-O-beta-D-xylopyranosyl (1 --> 3)-alpha-L-rhamnopyranosyl-pyrocincholic acid 28-O-beta-D-glucopyranosyl (1 --> 6)-beta-D-glucopyranosyl ester (1), and 3beta-O-beta-D-xylopyranosyl(l --> 3)-alpha-L-rhamnopyranosyl-cincholic acid 28-O-beta-D-glucopyranosyl ester (2) were isolated from the roots of Adina pilulifera, together with 18 known compounds. The structures of 1 and 2 were determined by spectroscopic methods.     

Lupane-triterpenes from the leaves ofBrassaiopsis glomerulata

Three known lupane-triterpenes, 3alpha-hydroxy-lup-20(29)-en-23,28-dioic acid (1), 3a-hydroxylup-20(29)-en-23,28-dioic acid 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester (acankoreoside A, 2) and 3alpha,11alpha-dihydroxy-23-oxo-lup-20(29)-en-28-oic acid (3) were isolated from the leaves of Brassaiopsis glomerulata (Blume) Regel, a species of Araliaceae family growing in Vietnam. Their structures were determined on the basis of spectroscopic data.     

A New 24-nor-lupane-glycoside ofAcanthopanax trifoliatus

A new 24-nor-lupaneglycoside was isolated from the leaves of Acanthopanax trifoliatus. Based on spectroscopic data its chemical structure was determined as 24-nor-11alpha-hydroxy-3-oxo-lup-20(29)-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl-(1 --> 4)-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranosyl ester.     

Structure and in vitro antiviral activity of triterpenoid saponins from Calendula arvensis.

A reinvestigation of the aerial parts of Calendula arvensis afforded, in addition to the oleanolic acid glycosides 1-4 (4), the new glycoside 5 whose structure was elucidated by spectral and chemical studies and determined as 3-O-(beta-D-galactopyranosyl-(1----3) [beta-D-glucopyranosyl-(1----4)]-beta-D-glucopyranosyl) oleanolic acid (28----1)-beta-D-glucopyranosyl ester. Furthermore, some antiviral tests were performed on glycosides 1-5 and on 5a, the hydrolysis product of 5, towards vesicular stomatitis virus (VSV) and rhinovirus (HRV) infection in cell cultures. An inhibitory effect against VSV multiplication was observed for all the compounds tested while HRV replication was significantly affected only by compound 3.     

Triterpenoidal saponins from the bark ofKalopanax pictum var.typicum

One new triterpenoidal saponin, saponin F(2) has been isolated from the bark of Kalopanax pictum Nakai var. typicum (Araliaceae), together with one known saponin, kizuta saponin K12 (1). On the basis of chemico-spectral evidences, the structure of 2 has been elucidated to be 3-O-beta-D-xylopyranosyl(1-->3)-alpha- L-rhamnopyranosyl(1-->2)-alpha- L-arabinopyranosyl-23-hydroxyolean-12-en-28-O-alpha-L- rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranosy l ester.