川续断的化学成分研究

从川续断(Dosacus asper Wall)的根中分得六个化合物(Ⅰ～Ⅵ)。Ⅰ,Ⅱ,Ⅲ和Ⅵ分别鉴定为蔗糖、胡萝卜甙、β-谷甾醇和akebia saponin D.Ⅵ和Ⅴ为新化合物,根据光谱分析和化学方法证明其结构分别为3-O-(4-O-乙酰基)-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-吡喃阿拉伯糖齐墩果酸28-O-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖酯甙。     

川续断中皂甙Ⅺ,Ⅻ和ⅩⅢ的结构研究

从川续断(Dipsacus asper Wall.)根的醇提物中得到三个微量新三萜皂甙(Ⅺ～ⅫⅠ),根据光谱分析和化学反应,其结构分别鉴定为3-O-[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(Ⅺ)、Ⅺ的28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙( Ⅻ)和3-O-[β-D-吡喃木糖(1→4)-B-O-吡喃葡萄糖(1→4)][α-L-吡喃鼠李糖(1→3)]-B-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-齐墩果酸-28-O-β-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙(ⅫⅠ)。     

川续断中皂甙Ⅺ,Ⅻ和ⅩⅢ的结构研究

从川续断(Dipsacus asper Wall.)根的醇提物中得到三个微量新三萜皂甙(Ⅺ～ⅫⅠ),根据光谱分析和化学反应,其结构分别鉴定为3-O-[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(Ⅺ)、Ⅺ的28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙( Ⅻ)和3-O-[β-D-吡喃木糖(1→4)-B-O-吡喃葡萄糖(1→4)][α-L-吡喃鼠李糖(1→3)]-B-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-齐墩果酸-28-O-β-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙(ⅫⅠ)。     

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)。     

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)。     

用核磁共振新技术测定日本续断皂甙E1的结构

从日本续断Dipsocus japunicus Miq.根的乙醇提到物中得到一个新三萜皂甙(5糖甙)，命名为日本续断皂甙E₁(japondipsaponin E₁)。用化学方法及¹HNMR,¹³CNMR,¹H-¹H COSY，一维多重接力COSY，选择性远程DEPT和三重共振NOE差谱等方法，鉴定其结构为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-吡喃葡萄糖甙。     

用核磁共振新技术测定川续断皂甙F和H1两个新皂甙的结构及光谱规律研究

从川续断(Dipsacus asperoides c．Y．cheng et T．M．Ai)根部的乙醇提取物中得到二个新三萜皂甙，命名为川续断皂甙(asperosaponins)F和H₁。川续断皂甙F(I)是含六个糖的皂甙，川续断皂甙H₁(II)是含八个糖的皂甙。运用化学方法及光谱(¹HNMR，¹³CNMR，¹H-¹H COSY，——维多重接力COSY，选择性远程DEPT和三重共振NOE差谱)解析，鉴定其结构分别为3-O-[β-D-吡喃木糖(1→4)-β-D-吡哺葡萄糖(1→4)][α-L-吡喃鼠李糖(1→3)]-β-D-吡喃半乳糖(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(I)和3-0-[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-吡喃半乳糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L一吡喃阿拉伯糖-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(II)。并总结出一些光谱方面的变化规律，可用于糖的鉴定，以及构型、糖链的连接顺序和糖与甙元之间的连接位置的说明。     

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。     

异叶梁王茶化学成分的研究

从异叶梁王茶[Nothopanax davidii(Franch)Harms]树皮中分离得到两种五环三萜皂甙,经化学和光谱(IR,¹HNMR,¹³CNMR,¹H-¹H COSY,¹H-¹³C COSY,NOESY,MS)分析,分别鉴定为3-O-α-(3′,4′-O-二乙酰基)-L-吡喃阿拉伯糖-β-羟齐墩果-12-烯-28,29-双羧酸-28-O-[α-L-吡喃鼠李糖(1→6)-β-D-吡喃葡萄糖(1→4)-β-D-吡喃葡萄糖]酯甙(Ⅱ)和3-O-α-(3′-O-乙酰基)-L-吡喃阿拉伯糖-3β-羟齐墩果-12-烯-28,29-双羧酸甙(Ⅱ),前者命名为异叶梁王茶甙Ⅰ,后者命名为异叶梁王茶甙Ⅱ。这两个皂甙均系新化合物。     

黄花败酱中三萜皂苷类成分的分离鉴定

目的 研究黄花败酱中的化学成分.方法 将黄花败酱全草的乙醇提取物经大孔树脂、硅胶、ODS柱分离得到6个化合物,通过(1H、13CNMR、ESI-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3-O-β-D-吡喃木糖-(1→3)-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-β-D-吡喃葡萄糖(6→1)-β-D-吡喃葡萄糖-(4→1)-α-L-吡喃鼠李糖酯苷(Ⅰ)、3-O-β-D-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-β-D-吡喃葡萄糖(6→1)-β-D-吡喃葡萄糖-(4→1)-α-L-吡喃鼠李糖酯苷 (Ⅱ)、齐墩果酸-3-α-L-吡喃阿拉伯糖-(2→1)-α-L-吡喃鼠李糖-(3→1)-O-β-D-吡喃木糖苷(Ⅲ)、3-O-β-D-吡喃木糖-(1→3)-α-L-吡喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖-齐墩果酸-28-O-β-D-吡喃葡萄糖酯苷 (Ⅳ)、齐墩果酸-3-O-β-D-吡喃木糖-(2→1)-α-L-吡喃鼠李糖苷(Ⅴ)、常春藤皂苷元-3-O-α-L-吡喃阿拉伯糖-(2→1)-α-L-吡喃鼠李糖苷 (Ⅵ).结论 化合物Ⅳ为一个新的天然产物,化合物Ⅰ和Ⅲ为首次从该植物中分离得到.     

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。     

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。     

Two new triterpenoid saponins from Pulsatilla cernua (Thunb.) Bercht. et Opiz

Two new triterpenoid saponins, named cernuaside C and D, have been isolated from Pulsatilla cernua (Thunb.) Bercht. et Opiz. The structures of the two new triterpenoid saponins were elucidated as 3-O-beta-D-xylopyranosyl(1 --> 2)-[alpha-L-rhamnopyranosyl(1 --> 3)]-alpha-L-arabinopyranosyl oleanolic acid 28-alpha-L-rhamnopyranosyl(1 --> 4)-beta-D-glucopyranosyl(1 --> 6)-beta-D-glucopyranoside. (1) and 3-O-alpha-L-arabinopyranosyl (1 --> 3)-alpha-L-rhamnopyranosyl(1 --> 2)-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranoside (2) by 1D, 2D-NMR techniques, ESI-MS analysis as well as chemical methods.     

Three new triterpenoid saponins from Ixeris sonchifolia and their cytotoxic activity

Bioassay-guided fractionation of an active n-BuOH extract of the whole plant of Ixeris sonchifolia, using a cytotoxicity assay, resulted in the isolation of three new triterpenoid saponins, ixeris saponins A (1), B (2), and C (3). On the basis of chemical evidence and extensive spectral studies, their structures were established as echinocystic acid 3-O-beta-D-glucopyranosyl(1-->3)-beta-D-glucopyranosyl(1-->3)-alpha- L-arabinopyranoside (1), 3-O-[bis[beta-D-glucopyranosyl(1-->2 and 1-->3)-alpha-L-arabinopyranosyl]]echinocystic acid 28-O-beta-D-glucopyranosyl ester (2), and 3- O-[beta-D-glucopyranosyl(1-->3)-beta- D-glucopyranosyl(1-->3)-alpha-L-arabinopyranosyl]-16alpha, 23-dihydroxyolean-12-ene 28-O-beta-D-glucopyranosyl ester (3). Compounds 2 and 3 showed significant cytotoxicity against cancer cell lines A375, L929, and HeLa with IC50 values ranging from 8.83 microM to 15.83 microM, while compound 1 was inactive against these three cell lines.     

Saponins from Fagonia glutinosa

Twelve triterpenoid saponins, including six new, were isolated and identified from the aerial parts of Fagonia glutinosa. The new saponins were characterised as 3-O-[beta-D-glucopyranosyl(1-->2)][beta-D-glucopyranosyl(1-->3)]-alpha-L - arabinopyranosyl-27-hydroxy oleanolic acid 28-O-beta-D-glucopyranosyl ester, 3-O-[beta-D-glucopyranosyl(1-->3)]-alpha-L-arabinopyranosyl ursolic acid, 3-O-alpha-L-arabinopyranosyl ursolic acid 28-O-beta-D-glucopyranosyl ester, 3-O-[beta-D-xylopyranosyl(1-->2)][beta- D-glucopyranosyl(1-->3)]-alpha-L-arabinopyranosyl ursolic acid, 3-O-[beta-D-glucopyranosyl(1-->2)][beta-D- glucopyranosyl(1-->3)]-alpha-L-arabinopyranosyl ursolic acid 28-O-beta-D-glucopyranosyl ester and 3-O-[beta-D-glucopyranosyl(1-->2)][beta-D-glucopyranosyl(1-->3)]-alpha-L - arabinopyranosyl-27-hydroxy ursolic acid 28-O-beta-D-glucopyranosyl ester. The structures of the saponins were established by spectral and chemical evidences. The assignments of the NMR signals were performed by means of HOHAHA, 1H-1H COSY, ROE, HMQC and HMBC experiments.     

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。     

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.     

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.