New cycloartane glycosides from Camptosorus sibiricus Rupr

Two new cycloartane glycosides were isolated from the whole herbs of Camptosorus sibiricus Rupr. By means of chemical and spectroscopic methods (IR, 1D and 2D NMR, HRMS, ESI MS), the structures were established as (24R)-3beta, 7beta, 24, 25-tetrahydroxycycloartane 3-O-beta-D-glucopyranosyl-24-O-beta-D-glucopyranoside (1) and (24R)-3beta, 7beta, 24, 25-tetrahydroxycycloartane 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl-24-O-beta-D-glucopyranoside (2). At the same time, two new compounds were tested for their cytotoxicities in vitro against human tumor cell lines (A375-S2, Hela).     

Flavonoids from Camptosorus sibiricus Rupr.

Three new flavonol glycosides, kaempferol-3-O-(6-trans-caffeoyl)-β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranoside (1), kaempferol-3-O-(6-trans-caffeoyl)-β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranoside-7-O-β-d-glucopyranoside (2), and kaempferol-3-O-(6-trans-p-coumaroyl)-β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranoside-7-O-β-d-glucopyranoside (3), were isolated from the aerial part of Camptosorus sibiricus. Their structures were elucidated by spectroscopic methods, including 2D NMR spectral techniques.     

过山蕨中有机酸类化学成分

目的研究过山蕨(Camptosorus sibiricusRupr.)中有机酸类化学成分。方法采用反复硅胶柱层析分离纯化,通过理化常数测定和光谱分析鉴定其化学结构。结果从过山蕨中分离得到了11个有机酸类化合物,即咖啡酸(caffeic acid,1)、香豆酸(courmaric acid,2)、原儿茶酸(protocate-chuic acid,3)、对羟基苯甲酸(4 hydroxybenzoic acid,4)、异香草酸(isovanillic acid,5)、2,4二羟基苯甲酸(2,4 dihydroxybenzoic acid,6)、肉桂酸(cinnamic acid,7)、丁二酸(succinic acid,8)、棕榈酸(palmitic acid,9)、香豆酸4OβD吡喃葡萄糖苷(transpcoumaric acid 4OβDglucopyranoside,10)、咖啡酸4OβD吡喃葡萄糖苷(caffeic acid 4OβDglucopyranoside,11)。结论化合物2~11,均为首次从该属植物中分离得到。     

A new cycloartane glycoside fromcamptosorus sibiricus rupr

A new cycloartane glycoside was isolated from the dried whole herbs of Camptosorus sibiricus Rupr By means of chemical (hydrolysis) and spectroscopic methods (IR, 1D, and 2D NMR, ESI-MS), the structure was established as 3beta, 7beta, 24beta, 25, 30-pentahydroxycycloartane-3-omicron-beta-D-glucopyranoside-24-omicron-beta-D-glucopyranoside (1).     

过山蕨总黄酮对大鼠血栓闭塞性脉管炎的改善作用

目的 观察过山蕨总黄酮对血栓闭塞性脉管炎模型大鼠的改善作用.方法 大鼠股动脉注射月桂酸制备血栓闭塞性脉管炎,造模后肉眼观察病变肢情况并评分,按评分结果将大鼠随机分为模型组,对照组,过山蕨总黄酮高、中、低剂量(7.2、3.6、1.8 mg/kg)组和脉管复康片(648 mg/kg)阳性对照组,每组10只,给药组于造模3d...     

Three new cycloartane glycosides from Nervilia fordii

From the water-soluble extract of the aerial part of herbal plant Nervilia fordii, three new cycloartane glycosides, named as nervisides A (1), B (2), and C (3), were isolated. Their structures were elucidated through a combination of spectroscopic analysis and hydrolysis. At the same time, the new compounds were tested for their cytotoxicities in vitro against human tumor cell lines (CNE, Hep-2, and HepG2) using MTT method.     

Flavonoids from Camptosorus sibiricus Rupr

Three new flavonol glycosides, kaempferol-3-O-(6-trans-caffeoyl)-beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranoside (1), kaempferol-3-O-(6-trans-caffeoyl)-beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranoside-7-O-beta-D-glucopyranoside (2), and kaempferol-3-O-(6-trans-p-coumaroyl)-beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranoside-7-O-beta-D-glucopyranoside (3), were isolated from the aerial part of Camptosorus sibiricus. Their structures were elucidated by spectroscopic methods, including 2D NMR spectral techniques.     

过山蕨总黄酮的化学成分研究(1)

目的分离、鉴定过山蕨 (ComptosorussibiricusRupr )乙醇提取物中总黄酮的化学组成。 方法采用反复硅胶柱色谱法、制备薄层色谱法等进行分离纯化 ,并通过理化常数测定和光谱分析鉴定了其化学结构。结果分离得到了 6个黄酮类化合物 ,即山萘酚 (kaempferol,Ⅰ ) ,山萘酚 7 O α L 鼠李糖苷 (kaempferol 7 O α L rhamnoside,Ⅱ ) ,山萘酚 3 O β D 吡喃葡萄糖苷 (kaempferol3 O β D glucopyranoside,Ⅲ ) ,山萘酚 7 O β D 吡喃葡萄糖苷 (kaempferol 7 O β D glucopyranoside,Ⅳ ) ,山萘酚 3 ,7 二 O β D 吡喃葡萄糖苷 (kaempferol 3 ,7 di O β D glucopyranoside,Ⅴ ) ,过山蕨素 (山萘酚 3 O β D 葡萄糖 7 O α L 鼠李糖苷 ,kaempferol 3 O β D glucopyranoside 7 O α L rhamnoside,Ⅵ )。结论化合物Ⅱ为首次从该植物中分离得到。     

New cycloartane glycosides from the rhizomes of Cyperus rotundus and their antidepressant activity

Two new cycloartane glycosides, cyprotusides A (1) and B (2), were isolated from the rhizomes of Cyperus rotundus. Their chemical structures were elucidated on the basis of IR, MS, NMR spectroscopic analyses coupled with chemical degradation. The potential antidepressant activity of the two compounds was evaluated. In the despair mice models, compounds 1 and 2 showed significant antidepressant activity.     

过山蕨中含杂原子类及多元醇类成分的分离鉴定

目的分离、鉴定过山蕨(Comptosorus sibiricus Rupr.)乙醇提取物中的化学成分.方法采用反复硅胶柱色谱法、制备薄层色谱法等进行分离纯化,并通过理化常数测定和光谱分析鉴定了它们化学结构.结果分离得到7个化合物,分别为腺苷(1)、环辛硫(2)、2,2′-二硫二苯并噻唑(3)、尿嘧啶(4)、D-甘露醇(5)、卫矛醇(6)、赤藻糖醇(7).结论化合物1～5及化合物7为首次从该植物中分离得到.     

环阿尔廷烷类三萜的资源分布和药理作用研究进展

环阿尔廷烷类三萜广泛地存在于植物界。目前已报道其分布的植物科扩增至100个科,但具体的含量分布、种类不同。环阿尔廷类三萜及其苷具有较好的药理活性,如抗肿瘤、抗衰老、抗菌、护肝等。对于其植物的分布和近年来的药理活性进行总结,有利于进一步开发此类药物。     

过山蕨水提物的化学成分

目的研究过山蕨(Camptosorus sibiricus Rupr.)水提物的化学成分。方法通过正相硅胶、MCI树脂、Sephadex LH-20、制备薄层色谱和反相HPLC等多种色谱技术,对过山蕨水煎煮提取物的化学成分进行分离纯化,通过波谱数据分析,鉴定了化合物的结构。结果共分离得到9个化合物,分别鉴定为:苄醇-O-β-D-吡喃葡萄糖苷(1)、3,5-二甲氧基-4-羟基-苯甲酰基-O-β-D-吡喃葡萄糖酯(2)、4-羟基-3-甲氧苯基-O-β-D-吡喃葡萄糖苷(3)、3,5-二甲氧基-4-羟基苯基-O-β-D-吡喃葡萄糖苷(4)、4-(2-羟乙基)-2-甲氧苯基-O-β-D-吡喃葡萄糖苷(5)、银桦苷G(6)、2-(4-羟苯基)乙基-O-β-D-吡喃葡萄糖苷(7)、2-(3,4-二羟基苯基)乙基-O-β-D-吡喃葡萄糖苷(8)、2-羟基-5-(2-羟乙基)-苯基-O-β-D-吡喃葡萄糖苷(9)。结论化合物1-9均为从过山蕨属中首次分离得到。     

New cycloartane glycosides from Cimicifuga dahurica

Two new cylcoartane glycosides along with a known compound, 12beta-hydroxycimigenol 3- O-alpha- L-arabinopyranoside, were isolated from the rhizomes of Cimicifuga dahurica (Ranunculaceae). The structures of the new compounds were elucidated as cimigenol 3- O-alpha- L-arabinopyranoside and 25- O-acetylcimigenol 3- O-alpha- L-arabinopyranoside on the basis of chemical and spectral evidence.     

New cycloartane glycosides from the aerial part of Thalictrum fortunei

Four new cycloartane glycosides, 3-O-β-d-xylopyranosyl-(1 → 6)-β-d-glucopyranosyl-(1 → 4)-β-d-fucopyranosyl (22S,24Z)-cycloart-24-en-3β,22,26-triol 26-O-(6-O-acetyl)-β-d-glucopyranoside (1), 3-O-α-l-arabinopyranosyl-(1 → 6)-β-d-glucopyranosyl-(1 → 4)-β-d-fucopyranosyl (22S,24Z)-cycloart-24-en-3β,22,26-triol 26-O-(6-O-acetyl)-β-d-glucopyranoside (2), 3-O-β-d-glucopyranosyl (24S)-cycloartane-3β,16β,24,25,30-pentaol 25-O-β-d-glucopyranosyl-(1 → 6)-β-d-glucopyranoside (3) and 3-O-β-d-glucopyranosyl (24S)-cycloartane-3β,16β,24,25,30-pentaol 25-O-β-d-glucopyranosyl-(1 → 4)-β-d-glucopyranoside (4), were isolated from the aerial parts of Thalictrum fortunei. Their structures were established on the basis of extensive NMR and HR-ESI-MS analyses, along with acid hydrolysis.     

C21 steroidal glycosides from Cynanchum taihangense

Two new C₂₁ steroidal glycosides, cynataihosides E (1) and F (2), together with a known one, sublanceoside H₂ (3), were isolated from Cynanchum taihangense. The aglycone of cynataihoside F (2) was also a new compound. Their structures were elucidated on the basis of NMR spectroscopic data, HR-ESI-MS analysis, and chemical evidence. Their cytotoxic activities against three human tumor cell lines (HL-60, THP1, and Caco2) were reported.     

New phenolic glycosides from Pilea cavaleriei

Five new phenolic glycosides, 2-hydroxy-(2′E)-prenyl benzoate-2,4′-di-O-β-d-glucopyranoside (1), 2-hydroxy-(2′E)-prenyl benzoate-2-O-α-l-arabinopyranosyl-(1 → 6)-β-d-glucopyranoside (2), 4-methylphenol-1-O-α-l-rhamnopyranosyl-(1 → 6)-β-d-glucopyranoside (3), 4-methylphenol-1-O-α-l-arabinopyranosyl-(1 → 6)-β-d-glucopyranoside (4), and 3,5-dimethoxyphenol-1-O-β-d-apiofuranosyl-(1 → 2)-β-d-glucopyranoside (5), together with six known glycosides (6–11), were isolated from the n-BuOH fraction of the EtOH extract of Pilea cavaleriei Levl subsp. cavaleriei. Their structures were elucidated by extensive spectroscopic analysis, including 1D and 2D NMR spectroscopy as well as HR-ESI-MS, and chemical evidences. All these compounds were isolated from the genus Pilea for the first time.     

New lignan glycosides from Justicia procumbens

Four new lignan glycosides (1–4), named procumbenosides I, K, L, and M, together with cleistanthin B (5) reported for the first time in the genus Justicia, and 5 other known arylnaphthalene lignan glycosides (6–10) were isolated from the whole plant of Justicia procumbens. The structures of the new compounds were elucidated by extensive one-dimensional (1D) and two-dimensional (2D) NMR experiments and mass spectrometry. Procumbenoside M (4) was a rare sesquilignan glycoside never previously reported in the species of Justicia. The paper also provided insight into the conformational equilibria existing in the lignan glycosides of the plant.     

New phenolic glycosides from the seeds of Cucurbita moschata

Two new phenolic glycosides were isolated from the seeds of Cucurbita moschata. Their structures were elucidated as (2-hydroxy)phenylcarbinyl 5-O-benzoyl-β-d-apiofuranosyl(1 → 2)-β-d-glucopyranoside (1) and 4-β-d-(glucopyranosyl hydroxymethyl)phenyl 5-O-benzoyl-β-d-apiofuranosyl(1 → 2)-β-d-glucopyranoside (2) on the basis of spectroscopic analysis and chemical evidence.     

Lipoxygenase-inhibiting phenolic glycosides and monoterpene glycosides from Paeonia lactiflora

The EtOH extract of the roots of Paeonia lactiflora afforded a new phenolic glycoside paenoside A (1) and a new monoterpene glycoside paeonin D (2), and five known monoterpene glycosides. Their structures were elucidated on the basis of spectroscopic means and hydrolysis products. All compounds displayed inhibitory potential against enzyme lipoxygenase.     

New antioxidant phenylethanol glycosides from Torenia concolor

Two new phenylethanol glycosides, phenylethyl-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-glucopyranoside (torenoside A, 1) and 2′-O-3,4-dihydroxy-β-phenylethoxy-O-α-l-rhamnopyranosyl-(1″ → 3′)-(4′-O-caffeoyl)-β-d-glucopyranoside (torenoside B, 2), along with the 17 known compounds (3–19) were isolated from Torenia concolor. Those structures were established on the basis of spectroscopic analysis including NMR spectroscopic techniques (¹³C, ¹H, ¹H–¹H COSY, HMQC, HMBC, TOCSY, and NOESY). Moreover, phenylethanol glycosides 3–6 exhibited significant antioxidant activities in DPPH radical scavenging assay.