Chemical Constituents with Antihyperlipidemic Activities from Desmodium triquetrum

Objective To study the chemical constituents from Desmodium triquetrum and their antihyperlipidemic activities. Methods The constituents of D. triquetrum were isolated and purified using various column chromatographies. Their chemical structures were elucidated using extensive spectroscopic methods. The lipid-lowering effects of the isolates were evaluated in HepG2 cells. Results Nine compounds were obtained from the ethanol extract of D. triquetrum and determined to be 6′-O-cis-p-coumaroyl-3,5-dihydroxyphenyl-β-D-glucopyranoside(1), tadehaginoside(2), rutin(3), quercetin-3-O-β-D-glucopyranoside(4), quercetin-3-O-β-D-galactopyranoside(5), 6-O-(E)-p-hydroxy-cinnamoyl-β-glucose(6), 6-O-(E)-p-hydroxy-cinnamoyl-α-glucose(7), kaempferol-3-O-β-D-rutinoside(8), and 3-O-β-D-galacopyranosyl(6-1)-α-L-rhamnosyl quercetin(9). Compounds 1 and 2 significantly reduced the intracellular content of total cholesterols and triglycerides. Conclusion Compound 1 is a new phenolic compound and exhibits potent anti-hyperlipidemic activity. Additionally, compounds 6 and 7 are isolated from D. triquetrum for the first time.     

Chemical constituents from leaves of Jatropha curcas

Objective: To investigate the chemical constituents from the leaves of Jatropha curcas and evaluate their inhibition on lipopolysaccharide (LPS)-activated BV-2 microglia cells. Methods: The n-BuOH extract of the leaves of J. curcas was isolated by macroporous adsorption resin, silica gel, ODS, column chromatography and semi-preparative HPLC. The structures of the compounds were identified by MS, NMR, ECD, and other spectroscopic methods. In addition, anti-neuroinflammatory effects of isolated compounds were evaluated by measuring the production of nitric oxide (NO) in over-activated BV-2 cells. Results: Seventeen compounds, including (7R,8S)-crataegifin A-4-O-β-D-glucopyranoside (1), (8R,8''R)-arctigenin (2), arctigenin-4''-O-β-D-glucopyranoside (3), (-)-syringaresinol (4), syringaresinol-4''-O-β-D-glucopyranoside (5), (-)-pinoresinol (6), pinoresinol-4''-O-β-D-glucopyranoside (7), buddlenol D (8), (2R,3R)-dihydroquercetin (9), (2S,3S)-epicatechin (10), (2R,3S)-catechin (11), isovitexin (12), naringenin-7-O-β-D-glucopyranoside (13), chamaejasmin (14), neochamaejasmin B (15), isoneochamaejasmin A (16), and tomentin-5-O-β-D-glucopyranoside (17) were isolated and identified. Compounds 2, 4 and 8 significantly inhibited the release of NO in BV-2 microglia activated by LPS, with IC50 values of 18.34, 29.33 and 26.30 μmol/L, respectively. Conclusion: Compound 1 is an undescribed compound, and compounds 2, 3, 8, 14–17 are isolated from Jatropha genus for the first time. In addition, lignans exhibited significantly inhibit NO release and the inhibitory activity was decreased after glycosylation.     

A New Phenylpropanol Glycoside and Its Five Known Analogues from Boschniakia rossica

Objective To study the constituents in the whole plant of Boschniakia rossica. Methods The constituents were separated and purified with chromatographic methods. Their structures were elucidated by spectroscopic methods (1D, 2D NMR, UV, IR, and HRESI-TOF-MS) and chemical analyses. Results One new phenylpropanol glycoside (1) and its five known analogues were obtained from B. rossica. They were identified as trans-p-coumaryl- (2′-O-β-D-glucopyranosyl)-β-D-glucopyranoside (1), salidroside I (2), rossicasin A (3), trans-p-coumaryl alcohol 1-O-β-glucopyranosyl(1→4)-α-rhamnopyranosyl(1→3)-β-glucopyranoside (4), salidroside (5), and acetoside (6). Conclusion Among the known compounds, compound 2 is firstly isolated from the plants in genus Boschniakia C. A. Mey. ex Bongard. Meanwhile, the 13 C-NMR data of 9 and 4′ positions in compound 4 are corrected.     

Saponins from Roots of Panax notoginseng

Objective To study the chemical constituents in the dried roots of Panax notoginseng.Methods The constituents were isolated and purified with chromatographic methods.Their structures were elucidated by spectroscopic methods(1D,2D NMR,UV,IR,[α]D,and HRESI-TOF-MS)and chemical analyses.Results Twenty saponins including 20(S)-ginsenoside Rh1(1),6-O-β-D-(6′-acetyl)-glucopyranosyl-24-ene-dammar-3β,6α,12β,20S-tetraol(2),ginseno-side Rf(3),notoginsenoside R2(4),ginsenoside Rg2(5),ginsenoside Rg1(6),notoginsenoside Rt(7),koryoginsenoside R1(8),6-O-(β-D-glucopyranosyl)-20-O-(β-D-xylopyranosyl)-3β,6α,12β,20(S)-tetrahydroxy-dammar-24-ene(9),pseudoginsenoside Rt3(10),notoginsenoside R1(11),ginsenoside Re(12),notoginsenoside N(13),ginsenoside F1(14),ginsenoside U(15),ginsenoside Rk3(16),3β,12β-dihydroxydammar-(E)-20(22),24-diene-6-O-β-D-xylopyranosyl-(1→2)-β-D-glucopyranoside(17),ginsenoside Rh4(18),pseudoginsenoside Rt5(19),and vinaginsenoside R22(20)were obtained.Conclusion Compounds 2,19,and 20 are isolated from this species for the first time.The 1H-NMR data of compound 19 and1H-NMR and 13C-NMR data of compound 20 are first reported.Meanwhile,the NMR data ofβ-D-xylopyranosyl group in compound 9 is corrected.     

Chemical constituents of Lomatogonium carinthiacum and Halenia corniculata

Objective: To study the chemical constituents from traditional characteristic Lomatogonium carinthiacum and Halenia corniculate. Methods: The chemical constituents were isolated and purified by silicagel column, Sephadex LH-20, ODS and high performance liquid chromategramphy. The structures were identified by NMR and MS analysis technics. Results: Twelve compounds were isolated and identified as isovitexin (1), Luteolin-5-O-β-D-glucoside (2), Isosaponarin (3), Luteolin-7-O-β-D-glucoside (4,7), 1,4,8-Trimethoxy-xanthone-6-O-β-D-glucoronyl-(1→6)O-β-Dglucoside (5), friginosideD (6), 1-hydroxy-2,3,5-trimethoxyxanthone (8), 1-hydroxy-2,3,4,5-tetramethoxyxanthone (9), 1-hydroxy-2,3,4,7-tetramethoxyxanthone(10), 1-hydroxy-2,3,4,5,7-pentamethoxyxanthone (11) and usnic acid (12). Conclusion: Compounds 6 and 12 are obtained from this medicine for the first time.     

Phenolic Compounds from Roots of Imperata cylindrica var. major

Objective To study the chemical constituents from the roots of Imperata cylindrica var.major.Methods The chemical constituents were isolated and purified by combination of silica gel,Sephadex LH-20,polyamide,and ODS column chromatography.The structures of the isolated compounds were identified by means of spectral data and physicochemical property.Results Twelve phenolic compounds were isolated from I.cylindrica var.major and identified as 4,7-dimethoxy-5-methylcoumarin(1),7-hydroxy-4-methoxy-5-methylcoumarin(2),7-O-β-D-glucopyranosyl-4-methoxy-5-methylcoumarin(3),6-hydroxy-5-methoxyflavone(4),5-methoxyflavone(5),5,7-dihydroxy-8-methoxyflavone(6),4-hydroxybenzaldehyde(7),4-hydroxy-cinnamic acid(8),4-hydroxy-3-methoxybenzoic acid(9),3,4-dimethoxyphenyl-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside(10),impecyloside(11),and graminone A(12).Conclusion Compounds 2—4,6,and 10 are obtained from this plant for the first time.     

Chemical constituents from aerial parts of Scoparia dulcis

Objective: To study the chemical constituents from the aerial parts of Scoparia dulcis. Methods: Various chromatographic techniques were used to separate the constituents and their structures were elucidated using spectroscopic methods and by comparing their data to those reported in the literatures. The α-glucosidase inhibitory activity assay was used to identify potential α-glucosidase inhibitors. Results: Nine compounds were isolated from the aerial parts of S. dulcis. Their structures were identified as Scoparic zolone (1), (2S)-2,7-dihydroxy-2H-1,4-benzoxazin-3(4H)-one (2), (2R)-7-hydroxy-2H-1,4-benzoxazin-3(4H)-one-2-O-β-D-glucopyranoside (3), (2R)-7-methoxy-2H-1,4-benzoxazin-3(4H)-one-2-O-β-D-glucopyranoside (4), (2S)-7-hydroxy-2H-1,4-benzoxazin-3(4H)-one-2-O-β-D-glucopyranoside (5), 6-methoxy-benzoxazolin-2(3H)-one (6), 4-acetonyl-3,5-dimethoxy-p-quinol (7), zizyvoside I (8), and 3,4-dihydroxy benzeneacetic acid (9). Compound 2 showed the potent α-glucosidase inhibitory activity with an IC50 value of (132.8 ± 11.5) μmol/L, which is 28-fold higher than the positive control acarbose. Conclusion: Compound 1 is a new natural product. Compounds 2 and 9 have not been reported in Scoparia before. Compounds 3, 5, 7, 8 are isolated from Scrophulariaceae for the first time.     

Chemical Constituents from Leaves of Oplopanax horridus

Objective To study the chemical constituents from the leaves of Oplopanax horridus. Methods The chemical constituents were isolated and purified by column chromatography on silica gel and Sephadex LH-20 gel columns, 1H-NMR and 13C-NMR were applied for the identification of chemical structure. Results Ten compounds were isolated and identified as dammara-20,24-dien-3β-ol acetate(1), phytol(2), 16 Z,19Z-pentacosadienoic acid(3), β-sitosterol(4),(3S,8S)-falcarindiol(5), maltol(6), acankoreagenin(7), daucosterol(8), stigmasterol-3-O-β-D-glucopyranoside(9), and acankoreoside A(10). Conclusion Compounds 1-3, 6, and 10 are isolated from this plant for the first time. Compounds 1-3 and 6 are isolated from the plants in genus Oplopanax Miq. for the first time. Moreover, Compounds 1, 3, and 6 are isolated from the plants in the family of Araliaceae for the first time.     

Cathayanalactone G and other constituents from leaves and twigs of Callicarpa cathayana

Objective: To study the chemical constituents from the leaves and twigs of Callicarpa cathayana. Methods: The chemical constituents were isolated and purified by column chromatography on silica gel, MCI gel CHP 20P/P120, Sephadex LH-20, and HPLC. The structures of the compounds were determined by HR-ESI-MS, 1D and 2D NMR data. Results: A total of 24 compounds were isolated from the 85% methanol extract of leaves and twigs of C. cathayana. They were identified as cathayanalactone G (1), a new diterpene, and 23 known compounds as patagonic acid (2), (-)-16-hydroxycledroda-3,13-dien-16,15-olide-18-oic acid (3), 15-methoxypatagonic acid (4), oleanolic acid (5), ursolic acid (6), siaresinolic acid (7), pomolic acid (8), α-amyrin (9), tormentic acid (10), lupeol (11), 5,7-dihydroxy-3,4''-dimethoxyflavone (12), 5,4''-dihydroxy-3,7,3''-dimethoxyfla-vone (13), 5-hydroxy-3,6,7,4''- tetramethoxyflavone (14), salvigenin (15), kaemferol (16), astragalin (17), pinoresinol 4-O-β-D-glucopyranoside (18), paulownin (19), β-sitosterol (20), β-sitosterol β-D-glucopyranoside (21), 5-hydroxy-coumarin (22), isocopoletin (23), and 4-hydroxycinnamic acid (24). Conclusion: Compound 1 is a new labdane diterpene. Compounds 10, 13, 16 and 17 are isolated from the genus Callicarpa for the first time. Compounds 7, 8, 9, 12, 14, 23 and 24 are reported from C. cathayana for the first time.     

Chemical Constituents from Barks of Lannea coromandelica

Objective To study the chemical constituents from the barks of Lannea coromandelica.Methods The chemical constituents were isolated and purified by column chromatography on silica gel column.NMR spectra were used for structural identification.Results Thirteen compounds were isolated and identified as quercetin(1),(2S,3S,4R,10E)-2-[(2′R)-2′-hydroxytetracosanoyl amino]-10-octadecene-1,3,4-triol(2),aralia cerebroside(3),5,5′-dibuthoxy-2,2′-bifuran(4),β-sitosteryl-3β-glucopyranoside-6′-O-palmitate(5),β-sitosterol palmitate(6),myricadiol(7),protocatechuic acid(8),p-hydroxybenzoic acidethyl ester(9),isovanillin(10),transcinnamic acid(11),palmitic acid(12),and stearic acid(13).Conclusion Compounds2-13 are isolated from this plant for the first time.     

Three new triterpenoid saponins from Aralia echinocaulis

Objective: To study the active ingredients in the root bark of Aralia echinocaulis. Methods: Three triterpenoid saponins were separated from the 70% ethanol extracts and purified by column chromatography and their structures were determined by spectroscopic analysis. Compound 1 and 3 were evaluated for antioxidant activity by the in vitro DPPH free radical scavenging ability and the protective effect of OH- induced DNA oxidative damage. Results: Compound 1 was a new type of triterpenoid saponin, named as echinocaulisaglycone 3-O-β-D-glucopyranoside (echinocaulisaponin A), and it had good antioxidant activity. Compound 2 was similar to compound 1, named as 1-hydroxyl-echinocaulisaglycone 3-O-β-D-glucopyranoside (echinocaulisaponin B). Compound 3 was also a new type of triterpenoid saponin, named as echinocaulisaglycone II 3-O-α-L-arabinopyranosyl-(1”→4’)-β-D-glucopyranosiduronic acid (echinocaulisaponin C), and its antioxidant activity was weaker than compound 1. Conclusion: In this study, three new compounds were discovered and two of them were carried out in vitro anti-oxidation studies, laying the foundation for further research on the treatment of related diseases (cardiovascular disease, arthritis, age-related macular degeneration, etc.) through anti-oxidation or quenching free radical function.     

中华雪胆中的三萜皂苷类化学成分研究

 目的研究中华雪胆的三萜皂苷类化学成分。方法应用色谱技术进行分离和纯化,采用UV、IR、MS、NMR等波谱技术鉴定结构。结果从中华雪胆的正丁醇部位分到6个三萜皂苷类化合物,分别为齐墩果酸-28-O-β-D-吡喃葡萄糖苷(Ⅰ),3-O-β-D-吡喃葡萄糖醛酸-齐墩果酸-28-O-α-L-阿拉伯糖苷(Ⅱ),3-O-(6′-丁酯)-β-D-吡喃葡萄糖醛酸-齐墩果酸-28-O-β-D-吡喃葡萄糖苷(Ⅲ),3-O-β-D-吡喃葡萄糖醛酸-齐墩果酸-28-O-β-D-吡喃葡萄糖苷(Ⅳ),3-O-(6′-甲酯)-β-D-吡喃葡萄糖醛酸-齐墩果酸-28-O-β-D-吡喃葡萄糖苷(Ⅴ),3-O-β-D-吡喃葡萄糖醛酸-齐墩果酸-28-O-β-D-吡喃甘露糖苷(Ⅵ)。结论齐墩果烷型三萜皂苷是中华雪胆的主要化学成分类别之一,这些化合物均是首次从中华雪胆中分离得到。     

Chemical constituents from acid hydrolyzates of Panax quinquefolius total saponins and their inhibition activity to α-glycosidase and protein tyrosine phosphatase 1B

Objective: To investigate the hypoglycemic components from the acid hydrolyzates of Panax quinquefolius total saponins, and screen the active compounds by in vitro inhibitory activities to α-glycosidase enzymes and protein tyrosine phosphatase-1 B(PTP1 B).Methods: The hydrolyzates were chromatographed repeatedly over silica gel column, and the structures of the compounds were determined by means of NMR. The in vitro bioassay was performed through the inhibitory effects on α-glucosidase or/and PTP1 B.Results: Eight compounds were isolated, which identified as 20(S)-panaxadiol(1),(20 S,24 R)-dammarane-20,24-epoxy-3β,6α,12β,25-tetraol(2), 20(R)-dammarane-3β,12β,20,25-tetraol(3), 20(S)-dammarane-3β,6α,12β,20,25-pentol(4), 20(R)-dammarane-3β,12β,20,25-tetrahydroxy-3β-O-β-D-glucopyranoside(5),β-sitosterol(6), oleanolic acid(7) and 20(S)-protopanaxadiol(8). Compound 5 was ginseng triterpenoid isolated from the acid hydrolysates of total saponins from P. quinquefolius for the first time. In this paper,the possible in vitro inhibitory activities were investigated. Compound 5 exhibited significantly inhibitory activity against α-glucosidase, and the IC50 value [(0.22 ± 0.21) μmol/L] was about 43-fold lower than positive control. For the PTP1 B inhibition assay, compound 5 indicated the strongest inhibitory effect with IC50 of(5.91 ± 0.38) μmol/L, followed by compound 4 with IC50 of(6.21 ± 0.21) μmol/L, which were all showed competitive inhibitory pattern by using a Lineweaver-Burk plot.Conclusion: These results supported the potential application of dammaranes from acid hydrolyzates of P. quinquefolius total saponins can be used as ingredients of ancillary anti-diabetic agent or functional factor.     

New coumarin glucopyranosides from roots of Angelica dahurica

Objective: To investigate the chemical constituents from the roots of Angelica dahurica.Methods: The chemical constituents were isolated and purified by AB-8 macroporous adsorption resin and Sephadex LH-20 column as well as semi-preparative reversed phase HPLC.The chemical structures were identified by spectral data.Results: Ten compounds were isolated and identified as xanthoarnol-3-O-β-d-glucopyranoside(1),angedahuricoside A(2),angedahuricoside B(3),isofraxidin-7-O-β-d-glucopyranoside(4),fraxidin-8-O-β-d-glucopyranoside(5),(-)-marmesinin(6),(2 S,3 R)-3-hydroxymarmesinin(7),hyuganoside V(8),daucosterol(9),and sucrose(10).Conclusion: Compounds 1 –3 are new ones and compounds 4 –6 and 8 are obtained from title plant for the first time.     

A phytochemical study on Dichocarpum auriculatum???an endangered medicinal plant peculiar to China

Objective: Dichocarpum auriculatum, an endangered perennial herb, is endemic to China and has been used as folk medicines for the treatment of cough, hepatitis, scrofula, and epilepsy. However, there is no phytochemical report on this herbal so far. For the resource development and protective importance of this endangered medicinal plant, a phytochemical study was undertaken.Methods: The chemical constituents were purified by silica gel column, Sephadex LH-20 column, and semi-preparative reversed phase HPLC. NMR and MS spectra were used for structural identification.Results: Thirteen compounds were isolated from D. auriculatum. Their structures were characterized as jatrorrhizine(1), berberine(2), steponine(3), magnoflorine(4), coclauril(5), menisdaurin(6), menisdaurilide(7), aquilegiolide(8),(6 R, 9 S)-3-oxo-α-ionol-β-D-glucopyranoside(9), blumenol C glucoside(10),palmitic acid(11), dibutylphthalate(12), and auriculatum A(13).Conclusion: Compound 13 is a new diester terephthalate derivative. All the compounds are obtained from the genus Dichocarpum for the first time, and compounds 9 and 10 have potential chemotaxonomic significance to the genus Dichocarpum.     

Preparation of Glycyrrhetinic Acid Monoglucuronide by Selective Hydrolysis of Glycyrrhizic Acid via Biotransformation

Objective To search for the microorganisms which have the high selectivity of hydrolyzing glycyrrhizic acid(GL) into 18β-glycyrrhetinic acid-3-O-β-D-glucuronide(GAMG) without glycyrrhetinic acid(GA) byproduct.Methods GL was biotransformed by Aspergillus sp.,the products were separated by chromatography on reverse phase C18 column and semi-preparative HPLC,and their structures were elucidated on the basis of HR-ESI-MS,1D NMR(1H-NMR,13C-NMR,and NOESY) and 2D NMR(1H-1H COSY,HSQC,and HMBC) spectral analyses.Results Aspergillus sp.could partially hydrolyze GL into GAMG(3),along with two minor byproducts,3-O-β-D-glucuronopyranosyl-18β-liquiritic acid(1) and 3-O-β-D-glucuronopyranosyl-24-hydroxy-18β-glycyrrhetinic acid(2).Conclusion Aspergillus sp.has the high selectivity of hydrolyzing GL into GAMG without GA byproduct and the yield of GAMG is about 60%.The complete assignments of 1H-NMR and 13C-NMR data for compounds 1 and 2 are reported for the first time.     

铁皮石斛中一个新化合物

 目的 研究铁皮石斛的化学成分。方法 采用硅胶色谱法、HP₂MGL型大孔树脂色谱法、Sephadex LH-20、Sephadex G-25凝胶色谱法、RP-HPLC制备柱色谱法进行分离纯化,通过现代波谱技术进行结构鉴定。结果 鉴定了10个化合物,分别为2-甲氧基苯基-1-O-β-D-芹糖-(1→2)-β-D-葡萄糖苷(1), 3,4,5-三甲氧基苯基-1-O-β-D-芹糖-（1→2）-β-D-葡萄糖苷(2), leonuriside A（3）,(1′R)-1′-(4-羟基-3,5-二甲氧基苯基)-1-丙醇-4-O-β-D-葡萄糖苷（4）,左旋丁香脂素（5）,丁香脂素-4,4′-O-双-β-D-葡萄糖苷（6）,(+)-丁香脂素-4-O-β-D-吡喃葡萄糖苷（7）,icariol A₂-4-O-β-D-glucopyranoside（8）,(+)-lyoniresinol-3a-O-β-D-glucopyranoside（9）,裂异落叶松脂醇（10）。结论 1为新化合物,2～4,6～10为首次从本属植物中发现,5为首次从本植物中发现。
     

Chemical Constituents from Endophytic Fungus Plectosphaerella cucumerina YCTA2Z1 of Cynanchum auriculatum

Objective: To study the chemical constituents from the Et OAc extract of endophytic fungal Plectosphaerella cucumerina YCTA2 Z1.Methods: The chemical constituents were isolated and purified by silica gel column,Sephadex LH-20,and reverse-phase C-18 column chromatography as well as crystallization.Results: Thirteen compounds were isolated from the EtOAc extract of the fungal strain YCTA2 Z1.Their chemical structures were elucidated according to the spectral evidence.They were identified as caudatin(1),baishouwubenzophenone(2),cynandione B(3),asterbatanoside A(4),p-hydroxyphenethyl-O-β-D-glycoside(5),caffeic acid(6),ferulic acid(7),2,5-dihydroxyacetophenone(8),protocatechuic acid(9),vanillic acid(10),stearic acid(11),azelaic acid(12),and succinic acid(13).Conclusions: It is the first chemical study on endophytic fungi from Cynanchum auriculatum and all the compounds are obtained from the species,the genus,as well as the family Plectosphaerellaceae for the first time.     

白刺花的花中化学成分研究

 目的 研究白刺花的花中的化学成分。方法 采用硅胶、Sephadex LH-20柱色谱分离纯化,用IR、NMR、MS方法鉴定结构。结果 从体积分数75%乙醇提取物的乙酸乙酯萃取部分得到7个化合物,其结果鉴定为染料木素(1),5-羟基-7,3′,4′-三甲氧基-二氢黄酮 (2),5,4′ -二羟基 - 7,3′-二甲氧基 -二氢黄酮 (3),三叶豆紫檀苷(4),齐墩果酸-28-O-β-吡喃糖葡萄糖苷(5),β-谷甾醇(6),胡萝卜苷(7);从正丁醇部分得到2个化合物,其结构鉴定为槐果碱(8),9α-羟基槐果碱(9)。结论 化合物1~7均为首次从该种植物分离得到。     

黑刺菝葜茎的化学成分研究

 目的研究黑刺菝葜茎的化学成分,为充分利用黑刺菝葜药用植物资源鉴定基础。方法利用大孔树脂、硅胶和Sephadex LH-20等色谱分离手段进行分离纯化,通过理化性质和光谱分析鉴定结构。结果从黑刺菝葜茎乙醇提取物的乙酸乙酯、正丁醇萃取物分离鉴定了5个化合物,分别为反式白藜芦醇(1)、槲皮素-3-O-β-D-葡萄糖苷(2)、木犀草素-7-O-β-D-葡萄糖苷(3)、拉克索皂苷元-3-O-[α-L-吡喃阿拉伯糖基-(1→6)]-β-D-吡喃葡萄糖苷(4)、拉克索皂苷元-3-O-[β-D-吡喃葡萄糖基-(1→4)][α-L-吡喃阿拉伯糖基-(1→6)]-β-D-吡喃葡萄糖苷(5)。结论化合物1～3首次从本植物中分离得到。