共查询到20条相似文献,搜索用时 31 毫秒
1.
Two new cytotoxic and virucidal trisulfated triterpene glycosides from the Antarctic sea cucumber Staurocucumis liouvillei. 总被引:10,自引:0,他引:10
M S Maier A J Roccatagliata A Kuriss H Chludil A M Seldes C A Pujol E B Damonte 《Journal of natural products》2001,64(6):732-736
Two new trisulfated triterpene glycosides, liouvillosides A (1) and B (2), have been isolated from the Antarctic sea cucumber Staurocucumis liouvillei. Their structures have been elucidated by spectroscopic analysis (NMR and FABMS) and chemical transformations. Liouvillosides A (1) and B (2) are two new examples of a small number of trisulfated triterpene glycosides from sea cucumbers belonging to the family Cucumariidae. Both glycosides were found to be virucidal against herpes simplex virus type 1 (HSV-1) at concentrations below 10 microg/mL. 相似文献
2.
Triterpene glycosides from the deep-water North-Pacific sea cucumber Synallactes nozawai Mitsukuri 总被引:3,自引:0,他引:3
Silchenko AS Avilov SA Antonov AA Kalinin VI Kalinovsky AI Smirnov AV Riguera R Jiménez C 《Journal of natural products》2002,65(12):1802-1808
Five non-sulfated triterpene glycosides, synallactosides A(1) (1), A(2) (2), B(1) (3), B(2) (4), and C (5), have been isolated from the sea cucumber Synallactes nozawai. Their structures have been deduced by extensive analysis of NMR and mass spectra. The glycosides 2-5 are new glycosides. Glycosides 2-4 have carbohydrate chains without precedent in the glycosides from sea cucumbers. This is the first time glycosides are found in members of the family Synallactidae. 相似文献
3.
玉足海参中的三萜皂苷成分 总被引:1,自引:0,他引:1
目的:研究玉足海参中具有生物活性的三萜皂苷。方法:应用正相硅胶柱色谱、反相硅胶柱色谱和高效液相色谱的方法分离和纯化三贴皂苷,并通过光谱和化学方法鉴定化合物结构。结果:从玉足海参中分离得到7个三萜皂苷,分别鉴定为leucospilotasideA(1),leucospilotasideB(2),leucospilotasideC(3),holothurinB(4),holothurinB2(5),echinoside13(6),and holothurinA(7)。结论:化合物2为新的海参三萜皂苷,化合物1,3,5和6为首次从该种海参中分得。 相似文献
4.
Mollisosides A, B1, and B2: minor triterpene glycosides from the New Zealand and South Australian sea cucumber Australostichopus mollis 总被引:2,自引:0,他引:2
Moraes G Northcote PT Silchenko AS Antonov AS Kalinovsky AI Dmitrenok PS Avilov SA Kalinin VI Stonik VA 《Journal of natural products》2005,68(6):842-847
Three new monosulfated triterpene glycosides, mollisosides A (2), B(1) (3), and B(2) (4), have been isolated from the sea cucumber Australostichopus mollis. Their structures were determined by NMR and mass spectra. The presence of sulfated glycosides in sea cucumbers belonging to the family Stichopodidae is uncommon. 相似文献
5.
Avilov SA Antonov AS Drozdova OA Kalinin VI Kalinovsky AI Stonik VA Riguera R Lenis LA Jiménez C 《Journal of natural products》2000,63(1):65-71
Three new monosulfated triterpene glycosides, calcigerosides B (2), C(1) (3), and C(2) (4), along with the known cucumarioside G(2) (1), have been isolated from the sea cucumber Pentamera calcigera. Their structures have been deduced from extensive spectral analysis (NMR and MS) and chemical evidence. Compounds 2-4 present a novel pentasacharide chain never reported before in sea cucumber triterpene glycosides. The desulfated derivatives of calcigerosides B, C(1), and C(2) (5, 7, and 9, respectively) showed moderate cytotoxicity (IC(50) = 5 microg/mL) against a selection of four human and mouse tumor cell lines. 相似文献
6.
Antonov AS Avilov SA Kalinovsky AI Anastyuk SD Dmitrenok PS Evtushenko EV Kalinin VI Smirnov AV Taboada S Ballesteros M Avila C Stonik VA 《Journal of natural products》2008,71(10):1677-1685
Five new triterpene glycosides, liouvillosides A1 (1), A2 (2), A3 (3), B1 (4), and B2 (5), have been isolated from the Antarctic sea cucumber Staurocucumis liouviellei along with the known liouvilloside A(6), isolated earlier from the same species, and hemoiedemosides A (7) and B (8), isolated earlier from the Patagonian sea cucumber Hemioedema spectabilis. The isolation was carried out using a new chromatographic procedure including application of ion-pair reversed-phase chromatography followed by chiral chromatography on a cyclodextrin ChiraDex column. The structures of the new glycosides were elucidated using extensive NMR spectroscopy (1H and 13C NMR spectrometry, DEPT, 1H-(1)H COSY, HMBC, HMQC, and NOESY), ESI-FTMS, and CID MS/MS, and chemical transformations. Glycosides 1-3 are disulfated tetraosides and glycosides 4 and 5 are trisulfated tetraosides. Glycosides 2 and 3 contain 3-O-methylquinovose, found for the first time as a natural monosaccharide in sea cucumber glycosides. On the basis of analyses of glycoside structures a taxonomic revision is proposed. 相似文献
7.
奇乳海参中两个具有抗真菌活性的三萜皂苷 总被引:2,自引:0,他引:2
目的:研究奇乳海参体内的化学成分,寻找结构新颖具有抗真菌活性的三萜皂苷类成分。方法:应用多种色谱分离技术对奇乳海参体内的化学成分进行分离纯化,根据化合物的理化性质,波谱数据及化学方法鉴定其结构。结果:分离得到2个三萜皂苷化合物,分别为axilogoside A(1)和holothurin B(2),并对其抗真菌活性进行了研究(4≤MIC80≤16μg·mL^-1)。结论:化合物1为一新的三萜皂苷化舍物,化合物2为首次从奇乳海参中分离得到,它们均显示一定的抗真菌活性。 相似文献
8.
Avilov SA Antonov AS Drozdova OA Kalinin VI Kalinovsky AI Riguera R Lenis LA Jiménez C 《Journal of natural products》2000,63(10):1349-1355
Three new triterpene glycosides, calcigerosides D(1) (1), D(2) (2), and E (3), have been isolated from the sea cucumber Pentamera calcigera. Their structures have been deduced from extensive spectral analysis (NMR and MS) and chemical evidence. All the compounds are disulfated pentaosides differing in aglycon structure and position of sulfate group, which were determined by the measurement of NT(1) values in the cases of glycosides 1 and 2. Glycoside 1 is a nonholostane derivative, that is, it lacks an 18(20)-lactone, which is very rare among the sea cucumber glycosides. 相似文献
9.
Avilov SA Antonov AS Silchenko AS Kalinin VI Kalinovsky AI Dmitrenok PS Stonik VA Riguera R Jimenez C 《Journal of natural products》2003,66(7):910-916
Four new triterpene glycosides, cucumariosides A(2)-5 (1), A(3)-2 (2), A(3)-3 (3), and isokoreoside A (4), along with the previously isolated koreoside A (5), have been found in the sea cucumber Cucumariaconicospermium. Glycoside 1 was isolated as a native substance, while glycosides 2-5 were identified through their desulfated derivatives. Their structures have been deduced by extensive spectral analysis (NMR and MS) and chemical evidence. All the glycosides contain the same branched pentasaccharide carbohydrate chain but differ in the number and positions of the sulfate groups. Glycoside 1 has one, glycosides 2 and 3 have two, and glycosides 4 and 5 have three sulfate groups. Glycosides 2-5 are non-holostane derivatives; their aglycons lack the 18(20)-lactone and are characterized by shortened side chains, which is a very rare feature among the sea cucumber glycosides. 相似文献
10.
Avilov SA Silchenko AS Antonov AS Kalinin VI Kalinovsky AI Smirnov AV Dmitrenok PS Evtushenko EV Fedorov SN Savina AS Shubina LK Stonik VA 《Journal of natural products》2008,71(4):525-531
Two novel triterpene holostane glycosides, synaptosides A ( 1) and A 1 ( 2), have been isolated from the Vietnamese sea cucumber Synapta maculata (Synaptida, Apodida). Their structures were elucidated by spectroscopic methods (NMR and MS) and chemical transformations. Glycosides 1 and 2 have rare branched pentasaccharide carbohydrate chains featuring a 3- O-methylglucuronic acid residue not previously reported in glycosides from sea cucumbers and a 6- O-sulfated glucose. Glycoside 2 has an oxo group at C-7 and a 8(9)-double bond. All these structural features are unknown in glycosides from sea cucumbers. Glycoside 1 has moderate cytotoxic activity (IC 50 8.6 microg/mL) and glycoside 2 is inactive against HeLa tumor cells. 相似文献
11.
Objective To study the new triterpene glycosides from sea cucumber Holothuria scabra with cytotoxic activity.Methods Triterpene glycosides from H.scabra were separated and purified by chromatography on... 相似文献
12.
Bioassay-guided fractionation of the active n-BuOH extract of the sea cucumber Holothuria fuscocinerea resulted in the isolation of three new triterpene glycosides, fuscocinerosides A (1), B (2), and C (3), along with two known glycosides, pervicoside C (4) and holothurin A (5), as active compounds causing morphological abnormality of Pyricularia oryzae mycelia. Compounds 1-5 possess the same tetrasaccharide moiety, 3-O-methyl-beta-D-glucopyranosyl-(1-->3)-beta-D- glucopyranosyl-(1-->4)-beta-D-quinovopyranosyl-(1-->2)-4-O-sodiumsulfato-beta-D-xylopyranosyl, linked to C-3 of holostane triterpene aglycones that differ in their side chains and 17-substituents. Their structures were elucidated by extensive spectral studies as well as chemical evidence. All the glycosides showed in vitro cytotoxicity against two human tumor cell lines. 相似文献
13.
Intercedensides A-C,three new cytotoxic triterpene glycosides from the sea cucumber Mensamaria intercedens Lampert 总被引:8,自引:0,他引:8
Three new triterpene glycosides, intercedensides A (1), B (2), and C (3), were isolated from the sea cucumber Mensamria intercedens Lampert, which is found in the South China Sea, and their structures have been elucidated by spectroscopic analysis (NMR and ESIMS) and chemical transformations. Intercedensides A (1) and C (3) have a conjugated double bond (22E,24-diene) in the side chain of the aglycon. Intercedenside B (2) has two beta-D-xylose and two sulfate groups in the carbohydrate chain. All three glycosides showed significant cytotoxicity against 10 human tumor cell lines with ED(50) in the range 0.6-4.0 microg/mL. Intercedenside A (1) exhibited significant in vivo antineoplastic activity against mouse Lewis lung cancer and mouse S180 sarcoma. On the basis of these initially promising results, intercedensides A-C merit further study as potential anticancer agents. 相似文献
14.
Ukiya M Akihisa T Yasukawa K Koike K Takahashi A Suzuki T Kimura Y 《Journal of natural products》2007,70(5):813-816
Two new oleanane-type triterpene glycosides, named helianthosides 4 (4) and 5 (5), along with four known triterpene glycosides, helianthosides 1 (1), 2 (2), 3 (3), and B (6), were isolated from an n-butanol-soluble fraction of a methanol extract of sunflower (Helianthus annuus) petals. The structures of the two new compounds were determined on the basis of spectroscopic and chemical methods. Upon evaluation of compounds 1-6 for inhibitory activity against 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation (1.7 nmol/ear) in mice, all of the compounds tested exhibited marked anti-inflammatory activity, with ID50 values in the range 65-262 nmol per ear. 相似文献
15.
Yoshikawa K Inoue M Matsumoto Y Sakakibara C Miyataka H Matsumoto H Arihara S 《Journal of natural products》2005,68(1):69-73
Two new lanostane triterpenoids (1, 2) and 10 new lanostane triterpene glycosides (3-12) have been isolated from the fruit bodies of Fomitopsis pinicola. Their structures were established primarily by NMR experiments and chemical methods, and their biological activity against COX-1 and COX-2 was investigated. 相似文献
16.
17.
Perrone A Masullo M Bassarello C Hamed AI Belisario MA Pizza C Piacente S 《Journal of natural products》2007,70(4):584-588
Two new sulfated triterpenes (1, 6) and four new sulfated triterpene glycosides (2-5) have been isolated from the aerial parts of Fagonia arabica. Their structures were established by spectroscopic data analysis. Compounds 1/2 and 3/4 are sulfated derivatives of the rare sapogenins 3beta,27-dihydroxyolean-12-en-28-oic acid and 3beta,27-dihydroxyurs-12-en-28-oic acid, respectively. Compound 5 is an unusual disulfated oleanene derivative characterized by the occurrence of a 13,18-double bond, while compound 6 is the first reported naturally occurring saturated and sulfated pentacyclic triterpene of the taraxastane series with a C-20,28 lactone unit. 相似文献
18.
Intercedensides D-I, cytotoxic triterpene glycosides from the sea cucumber Mensamaria intercedens Lampert 总被引:6,自引:0,他引:6
Six new triterpene glycosides, intercedensides D-I (1-6), were isolated from the whole bodies of the sea cucumber Mensamria intercedens Lampert, which is found in the South China Sea. Their structures were elucidated by extensive spectroscopic analysis (NMR and ESIMS) and chemical methods. lntercedensides D (1), E (2), G (4), and H (5) have a conjugated double bond system (22Z,24-diene) in the aglycon side chain, while intercedensides F (3) and I (6) have only a single double bond (24, 25) in this same chain. lntercedensides D-H (1-5) showed significant cytotoxicity (ED(50) 0.96-5.0 mug/mL) against 10 human tumor cell lines. 相似文献
19.
20.
Chen SN Lankin DC Nikolic D Fabricant DS Lu ZZ Ramirez B van Breemen RB Fong HH Farnsworth NR Pauli GF 《Journal of natural products》2007,70(6):1016-1023
Extracts from the roots and rhizomes of black cohosh (Cimicifuga racemosa) are widely used as dietary supplements to alleviate menopausal symptoms. State-of-the-art quality control measures involve phytochemical fingerprinting of the triterpene glycosides for species identification and chemical standardization by HPLC. In the course of developing materials and methods for standardization procedures, the major C. racemosa triterpene glycoside (1) was isolated and initially thought to be cimicifugoside (2). Detailed HR-LC-MS and 1D and 2D NMR analysis of 1 and 2 unambiguously revealed that 1 is the chlorine-containing derivative of 2, namely, 25-chlorodeoxycimigenol-3-O-beta-d-xyloside. Accordingly, HPLC profiles of black cohosh preparations require revision of the assignments of the chlorinated (1) and nonchlorinated (2) pair. Besides explaining the substantial shift in polarity (DeltatR[RP-18] ca. 20 min), 25-deoxychlorination opens a new pathway of structural diversification in triterpene glycoside chemistry. As chemical conversion of 2 into 1 could be demonstrated, deoxychlorination may be interpreted as artifact formation. Simultaneously, however, it is a potentially significant pathway for the gastric in vivo conversion ("nature's prodrug") of the relatively polar triterpene glycosides into significantly less polar chlorinated derivatives with altered pharmacological properties. 相似文献