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Wang N, Li Z, Song D, Li W, Fu H, Koike K, Pei Y, Jing Y, Hua H. Lanostane-type triterpenoids from the roots of Kadsura coccinea. JOURNAL OF NATURAL PRODUCTS 2008; 71:990-994. [PMID: 18491866 DOI: 10.1021/np7007522] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Seven new lanostane-type triterpenoids, seco-coccinic acids A-F (1- 6) and coccinilactone A (7), were isolated from the roots of Kadsura coccinea. Their structures were established on the basis of spectroscopic data analysis. The absolute configuration at C-24 of compound 5 was confirmed by the modified Mosher's method. The cell growth inhibitory effects of these compounds were determined in human leukemia HL-60 cells, and it was found that compounds 1, 2, 3, and 5 exhibited antiproliferative effects with GI 50 values ranging from 6.8 to 42.1 microM.
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El Dine RS, El Halawany AM, Ma CM, Hattori M. Anti-HIV-1 protease activity of lanostane triterpenes from the vietnamese mushroom Ganoderma colossum. JOURNAL OF NATURAL PRODUCTS 2008; 71:1022-6. [PMID: 18547117 DOI: 10.1021/np8001139] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Four new lanostane triterpenes, colossolactone V (1), colossolactone VI (2), colossolactone VII (3), and colossolactone VIII (4), were isolated from the fruiting bodies of the Vietnamese mushroom Ganoderma colossum, together with the known compound colossolactone E (5). The structures of 1- 4 were assigned on the basis of spectroscopic evidence, and their absolute configurations were determined by CD spectroscopy and the Mosher ester method. Compounds 1- 5, as well as two previously isolated compounds [schisanlactone A (6) and colossolactone G (7)] from the same mushroom, were evaluated for inhibition of HIV-1 protease, with IC 50 values for the most potent compounds ranging from 5 to 13 microg/mL.
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Li H, Wang L, Miyata S, Kitanaka S. Kadsuracoccinic acids A-C, ring-A seco-lanostane triterpenes from Kadsura coccinea and their effects on embryonic cell division of Xenopus laevis. JOURNAL OF NATURAL PRODUCTS 2008; 71:739-741. [PMID: 18271558 DOI: 10.1021/np700739t] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Three new 3,4- seco-lanostanes, kadsuracoccinic acids A-C ( 1- 3), were isolated from the medicinal plant Kadsura coccinea, in addition to the known compounds kadsuric acid ( 4) and micranoic acid A ( 5). The structures of 1- 3 were elucidated by analysis of their 2D-NMR spectroscopic data. Furthermore, the relative conformation of 1 was confirmed by an X-ray crystallographic study. This is the first report of a 3,4- seco-lanostane-type triterpene with a 17(20)-ene functional group. Treatment of cultured individual Xenopus laevis cells with 1 at the blastular stage arrested cleavage of these cells with an IC 50 of 0.32 microg/mL.
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Zhang XQ, Pang GL, Cheng Y, Wang Y, Ye WC. [Chemical constituents of the spores of Ganoderma lucidum]. ZHONG YAO CAI = ZHONGYAOCAI = JOURNAL OF CHINESE MEDICINAL MATERIALS 2008; 31:41-44. [PMID: 18589746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To study the chemical constituents of the sporoderm-broken spores of Ganoderma lucidum. METHODS Chemical constituents were isolated and purified by silica gel and Sephadex LH-20 column chromatography. The structures were identified by means of physicochemical and spectral data. RESULTS From the ethyl acetate extract of the material, eight compounds were isolated. Their structures were identified as ganoderic acid A (I), methyl ganoderate A (II), methyl ganoderate B (III), ganoderic acid C2 (IV), ganoderic acid G(V), ergosta-7,22-diene-3beta, 5alpha, 6beta-triol (VI), ergosterol peroxide (VII) and ergosta-7,22-diene-3beta-yl pentadecanoate (VIII), respectively. CONCLUSION Compounds II, III, VII and VIII are isolated from the spores of G. lucidum for the first time.
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Gao JC, Zhang JC, Chen Y, Yang MS, Xiao PG. [Study on chemical constituents from rhizomes of Actaea asiatica]. ZHONGGUO ZHONG YAO ZA ZHI = ZHONGGUO ZHONGYAO ZAZHI = CHINA JOURNAL OF CHINESE MATERIA MEDICA 2007; 32:2256-2258. [PMID: 18309667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To investigate the chemical constituents of the rhizomes of Actaea asiatica in order to obtain a more comprehensive understanding of its effective components. METHOD Compounds were separated by silica gel chromatography, RP-C18 chromatography and semi-preparative high performance liquid chromatography, and their structures were established by spectral analysis and chemical evidence. RESULT Six compounds were isolated from the ethyl acetate extract. Their structures were identified as 25-O-acetylcimigenol (1), 12beta-hydroxycimigenol (2), 23-epi-26-deoxyactein (3), 27-deoxyacetylacteol (4), 26-deoxycimicifugenin (5) and beta-sitosterol (6). CONCLUSION All these compounds mentioned above were isolated from the plant for the first time.
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Yang XW, Han MH, Jin YP. [Studies on the chemical constituents from herba anoectochili]. ZHONG YAO CAI = ZHONGYAOCAI = JOURNAL OF CHINESE MEDICINAL MATERIALS 2007; 30:797-800. [PMID: 17944188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To study the chemical constituents in the whole herb of Anoectochiluts roxburghii (Wall) Lindl. METHOD The chemical constituents were isolated by various column chromatographic methods and structurally elucidated by IR, NMR and MS evidences. RESULT Fourteen compounds were obtained and there into ten were identified as beta-sitosterol(2), ferulic acid(3), oleanolic acid(6), lanosterol(7), p-hydroxybenzaldehyde(8), 3-methoxyl-p-hydroxybenzaldehlde(9), daucosterol(10),3',4',7-trimethoxy-3, 5-dihydroxyflavone(11), isorhamnetin-3-O-beta-D-rutinoside(12) and rutin(13). CONCLUSION Compounds 6,7,9 and 11 from genera Anoeetochilus were isolated for the first time.
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Han QB, Song JZ, Qiao CF, Wong L, Xu HX. Preparative isolation of cyclolanostane-type saponins from Astragalus membranaceus bge. var. mongholicus (Bge.) Hsiao by TLC-MS/MS guided high-speed counter-current chromatography. J Sep Sci 2007; 30:135-40. [PMID: 17313153 DOI: 10.1002/jssc.200600264] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Two cyclolanostane-type saponins, astragalosides I and II, were first identified by TLC-MS/MS in the ethyl acetate extract of the roots of Astragalus membranaceus Bge var. mongholicus (Bge.) Hsiao without chemical reference substances. They were then isolated by high-speed counter-current chromatography with a two-step two-phase solvent system of ethyl acetate-2-propanol-water (5:1:5, 50:1:50, v/v/v). The quantities of astragalosides I and II isolated from 1 g of the crude extract were 30.2 mg and 16.5 mg, respectively. Their purities were found to be over 95% by HPLC-ELSD analysis. Their chemical structures were confirmed by 1H and 13C nuclear magnetic resonance analysis.
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Guo ZJ, Zuo JF, Bo XQ, Sun QS. [Study on chemical constituents of Euphorbia hylonoma hand. -Mazz]. ZHONG YAO CAI = ZHONGYAOCAI = JOURNAL OF CHINESE MEDICINAL MATERIALS 2007; 30:412-5. [PMID: 17674791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
OBJECTIVE To study the constituents of the roots of Euphorbia hylonoma Hand. -Mazz. METHODS The chemical constituents were isolated and purified by solvent extraction together with various chromatographic techniques, the structures were elucidated on the basis of chemical properties and spectral data. RESULTS Eight compounds were isolated from the acetone extracts of the roots of Euphorbia hylonoma Hand-Mazz., which were euphol(I), 5-hydroxymethylfuraldehyde(II), beta-sitosterol(III), beta-sitosterol glucoside (IV),3,3',4-tri-o-methylellagic acid(V), 3, 3' tdi-o-methylellagic acid (VI),3,3'-di-o-methylellagic acid-4'-o-beta-dxylopyranosid (VII), gallic acid(VIII). CONCLUSION The compounds II, VI, VII, VIII were isolated from Euphorbia hylonoma Hand-Mazz. for the first time.
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Riddle LA, Guiochon G. Separation of free sterols by high temperature liquid chromatography. J Chromatogr A 2006; 1137:173-9. [PMID: 17055522 DOI: 10.1016/j.chroma.2006.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2006] [Revised: 10/02/2006] [Accepted: 10/05/2006] [Indexed: 11/19/2022]
Abstract
Increasing the column temperature accelerates markedly elution in HPLC. The separation of five free sterols was studied on three packing materials that can withstand high temperatures. These stationary phases included graphitic carbon, a polymeric C18 silica, and a zirconia-based adsorbent. Measurements of retention data were made at up to 150 degrees C with mobile phases of different compositions. Since the columns tested afford different retention mechanisms, a variety of elution patterns were observed, with some being more advantageous than others for certain sterol separations. Effects observed include some selectivity improvements and some elution order reversals. The separation of free sterols in selected fruit juices is also presented. Albeit at the expense of a longer analysis time, the graphitic carbon column produced the best separation of the sterols in this study.
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de Silva ED, van der Sar SA, Santha RGL, Wijesundera RLC, Cole ALJ, Blunt JW, Munro MHG. Lanostane triterpenoids from the Sri Lankan basidiomycete Ganoderma applanatum. JOURNAL OF NATURAL PRODUCTS 2006; 69:1245-8. [PMID: 16933889 DOI: 10.1021/np0602214] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Two new lanostane-type triterpenoids, 3alpha,16alpha-dihydroxylanosta-7,9(11),24-trien-21-oic acid (1) and 3alpha,16alpha,26-trihydroxylanosta-7,9(11),24-trien-21-oic acid (2), along with three known lanostanoids, 16alpha-hydroxy-3-oxolanosta-7,9(11),24-trien-21-oic acid (3), 3alpha-carboxyacetoxy-24-methylen-23-oxolanost-8-en-26-oic acid (4), and 3alpha-carboxyacetoxy-24-methyl-23-oxolanost-8-en-26-oic acid (5), have been isolated from the EtOAc extract of the fruiting body of Ganoderma applanatum. The structures of 1, 2, and 3 were determined directly by the interpretation of spectroscopic data, while the structures of 4 and 5 were assigned by comparison of spectroscopic data against literature values.
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Ruan HL, Zhang Y, Zhang YH, Pi HF, Wu JZ. [Studies on constituents from roots of Euphorbia hylonoma]. ZHONGGUO ZHONG YAO ZA ZHI = ZHONGGUO ZHONGYAO ZAZHI = CHINA JOURNAL OF CHINESE MATERIA MEDICA 2006; 31:742-4. [PMID: 17048682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
OBJECTIVE To study the constituents from roots of Euphorbia hylonoma. METHOD Column chromatographic techniques were used for isolation and purification of the chemical constituents and their structures were identified by spectral analysis (IR, 1H-NMR, 13C-NMR, 2D-NMR and MS). RESULT Six compounds were isolated and elucidated as nonane (1), bis (2-ethylhexyl) phthalate (2), euphol (3), beta-sitosterol (4), acalyphol (5) and daucosterol (6) respectively. CONCLUSION Compounds 1, 2, 3, 5 and 6 were isolated from the plant for the first time.
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Rukachaisirikul V, Saelim S, Karnsomchoke P, Phongpaichit S. Friedolanostanes and lanostanes from the leaves of Garcinia hombroniana. JOURNAL OF NATURAL PRODUCTS 2005; 68:1222-5. [PMID: 16124765 DOI: 10.1021/np050131j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Five new triterpenes, one 17,14-friedolanostane (garcihombronane F, 1), three 17,13-friedolanostanes (garcihombronanes G-I, 2-4), and one lanostane (garcihombronane J, 5), were isolated from the leaves of Garcinia hombroniana together with nine known compounds including five triterpenes, two ionone-derived glycosides, and two flavonoid glucosides. Their structures were identified by analysis of spectroscopic data and comparison of the NMR data with those previously reported.
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Shi DY, Han LJ, Sun J, Yang YC, Shi JG, Fan X. [Studies on chemical constitutes of green alga Chaetomorpha basiretorsa and their bioactivity]. ZHONGGUO ZHONG YAO ZA ZHI = ZHONGGUO ZHONGYAO ZAZHI = CHINA JOURNAL OF CHINESE MATERIA MEDICA 2005; 30:1162-5. [PMID: 16201690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
OBJECTIVE To study the chemical constituents of Chaetomorpha basiretorsa and screen for bioactive leading compounds. METHOD Compounds were isolated by normal phase silica gel and Sephadex LH-20 gel column chromatography, reverse phase MPLC and reverse phase HPLC. Their structures were elucidated by spectroscopic methods including MS, IR and 1D, 2D NMR. Cytotoxicity of the compounds was screened by using standard MTT method. The purified compounds' inhibition against proliferation of dog vascular smooth muscle cells was also screened by MTT assay. RESULT Five compounds were isolated from C. basiretorsa and their structures were identified as euphol (I), loloilide (II), 4-cumylphenol (III), zeaxanthin (IV) and lactucaxanthin (V). CONCLUSION All these compounds were obtained from this genus for the first time. Compound (III), 4-cumylphenol, was a new nature product. All compounds were inactive (IC50 > 10 microg x mL(-1)) in cytotoxicity screening. In inhibition against proliferation of dog vascular smooth muscle cells test, the cell survival ratio to compound I was (0.32 +/- 0.056)% which indicate its potential anti-atherosclerotic bioactivity.
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Dai HF, Edrada RA, Ebel R, Nimtz M, Wray V, Proksch P. Norlanostane triterpenoidal saponins from the marine sponge melophlussarassinorum. JOURNAL OF NATURAL PRODUCTS 2005; 68:1231-7. [PMID: 16124767 DOI: 10.1021/np050152d] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Along with five known 30-norlanostane-type saponins, sarasinosides A(1) (5A), A3 (6A), I1 (7), I2 (8), and H2 (9), four new triterpenoidal saponin congeners, sarasinosides J (1), K (2), L (3), and M (4), were isolated from the Indonesian sponge Melophlus sarassinorum. Sarasinosides J (1) and K (2) are the 24,25-hydrogenated congeners of the previously described sarasinosides A1 and H2, respectively. The carbon skeleton of sarasinoside M (4) possesses a rearranged 8alpha,9alpha-epoxy-8,9-seconorlanosta-8(14),9(11),24-triene system, which is novel and unprecedented in nature. The structures of the new compounds were confirmed by spectral analyses, chemical derivatization, and GC analyses. Compounds 1 and 5A exhibited antimicrobial activity toward Bacillus subtilis and Saccharomyces cerevisiae.
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Sun S, Gao Y, Ling X, Lou H. The combination effects of phenolic compounds and fluconazole on the formation of ergosterol in Candida albicans determined by high-performance liquid chromatography/tandem mass spectrometry. Anal Biochem 2005; 336:39-45. [PMID: 15582556 DOI: 10.1016/j.ab.2004.06.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2004] [Indexed: 11/27/2022]
Abstract
A liquid chromatography/tandem mass spectrometry (LC/MS) with atmospheric pressure chemical ionization (APCI) for the quantification of ergosterol, lanosterol, and squalene was developed to evaluate the combination effects of phenolic compounds with fluconazole on ergosterol biosynthesis in Candida albicans. The three analytes were separated by a column of C18 and were quantified without interference with each other using positive mode tandem mass spectrometry (MS/MS). Molecular ions of ergosterol and lanosterol were detected as the [M+H-H2O]+ ion species at m/z 380 and 410, whereas squalene appeared as the [M+H]+ ion species at m/z 412. On fragmentation of ergosterol, lanosterol, and squalene, the product ions at m/z 69, 149, and 109, respectively, were present as major fragments. These product ions were used for the quantification of them in multiple reaction monitoring acquisition mode. The relationship between signal intensity and the analytes' concentration was linear over the concentration range of 0.05-10 microg/ml. Following the treatment of C. albicans with fluconazole in combination with albicanyl caffeate, resveratrol, and 3,4'-difluorostilbene, respectively, the content of ergosterol in both the sensitive and resistant C. albicans showed depletion, whereas the squalene showed accumulation especially in the sensitive isolates determined with the method developed.
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Yoshikawa K, Kouso K, Takahashi J, Matsuda A, Okazoe M, Umeyama A, Arihara S. Cytotoxic constituents of the fruit body of Daedalea dickisii. JOURNAL OF NATURAL PRODUCTS 2005; 68:911-4. [PMID: 15974617 DOI: 10.1021/np058024c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Three new lanostane triterpenoids (1, 7, 8) and five new lanostane triterpene glucosides (2-6) have been isolated from the fruit bodies of Daedalea dickinsii. Their structures were established primarily by NMR experiments, and their biological activity against HL-60 and HCT-15 cell lines was investigated. Compounds 3-6 induced internucleosomal DNA fragmentation characteristic of apoptotic cell death in the HL-60 cell line.
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Wada SI, Tanaka R. Synthetic lanostane-type triterpenoids as inhibitors of DNA topoisomerase II. Bioorg Med Chem Lett 2005; 15:2966-9. [PMID: 15914002 DOI: 10.1016/j.bmcl.2005.04.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2005] [Revised: 04/22/2005] [Accepted: 04/25/2005] [Indexed: 11/29/2022]
Abstract
DNA topoisomerase (Topo) II is one of the target enzymes for chemotherapeutic drug development. Lanostane-type triterpenoids with various functional groups (-Cl, -Br, -OMe, -CHO, -CN, -COOH, and -COOMe) at C-2 were synthesized from 3-oxolanost-9(11)-en-24S,25-diol (9) isolated from Pinus luchuensis and their inhibitory effects on Topo II activity and cytotoxic activities against A549 cells were examined. All the derivatives showed Topo II inhibitory effects with IC50 values ranging from 1.86 to 149.97 microM and cytotoxic activities with ED50 values ranging from 3.96 to 38.15 microM.
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Wu X, Yang J, Zhou L, Dong Y. New lanostane-type triterpenes from Fomes officinalis. Chem Pharm Bull (Tokyo) 2005; 52:1375-7. [PMID: 15516768 DOI: 10.1248/cpb.52.1375] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Five new lanostane-type triterpenes, named fomefficinic acid A-E (1-5), were isolated from the dried sclerotium of Fomes officinalis, respectively. Their structures were established as 24-methylene-3-oxo-lanost-8-en-21-oic acid (1), 3alpha,15alpha-dihydroxy-24-methylene-lanosta-7,9(11)-dien-21-oic acid (2), 3alpha,15alpha-dihydroxy-24-methylene-lanost-8-en-21-oic acid (3), 15alpha-hydroxy-3-oxo-24-methylenelanost-8-en-21-oic acid (4), 15alpha-acetoxy-3-oxo-24-methylenelanosta-7,9(11)-dien-21-oic acid (5), by spectral analysis and chemical methods as well as comparison with known compounds.
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Akihisa T, Tagata M, Ukiya M, Tokuda H, Suzuki T, Kimura Y. Oxygenated lanostane-type triterpenoids from the fungus ganodermalucidum. JOURNAL OF NATURAL PRODUCTS 2005; 68:559-563. [PMID: 15844948 DOI: 10.1021/np040230h] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Two new triterpenoids, 20(21)-dehydrolucidenic acid A (1) and methyl 20(21)-dehydrolucidenate A (2), and five new 20-hydroxylucidenic acids, 20-hydroxylucidenic acid D(2) (3), 20-hydroxylucidenic acid F (4), 20-hydroxylucidenic acid E(2) (5), 20-hydroxylucidenic acid N (6), and 20-hydroxylucidenic acid P (7), were isolated from the fruiting body of the fungus Ganoderma ludicum, and their structures were established on the basis of spectroscopic methods.
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Yoshikawa K, Inoue M, Matsumoto Y, Sakakibara C, Miyataka H, Matsumoto H, Arihara S. Lanostane triterpenoids and triterpene glycosides from the fruit body of Fomitopsis pinicola and their inhibitory activity against COX-1 and COX-2. JOURNAL OF NATURAL PRODUCTS 2005; 68:69-73. [PMID: 15679320 DOI: 10.1021/np040130b] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
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.
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León F, Quintana J, Rivera A, Estévez F, Bermejo J. Lanostanoid triterpenes from Laetiporus sulphureus and apoptosis induction on HL-60 human myeloid leukemia cells. JOURNAL OF NATURAL PRODUCTS 2004; 67:2008-2011. [PMID: 15620242 DOI: 10.1021/np049762o] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A new lanostanoid triterpene, 3-oxosulfurenic acid (1), together with three known triterpenes (3, 4, and 7) were isolated from the fruit bodies of Laetiporus sulphureus. Cytotoxicity of these compounds and their derivatives (2, 5, and 6) was evaluated on HL-60 cells. Further studies revealed that acetyl eburicoic acid (5) was the most potent apoptosis inducer. Apoptosis was accompanied by both the activation of caspase-3 and the fragmentation of poly(ADP-ribose) polymerase-1 and was also associated with an early release of cytochrome c from the mitochondria.
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Vieira LMM, Kijjoa A, Wilairat R, Nascimento MSJ, Gales L, Damas AM, Silva AMS, Mondranondra IO, Herz W. Bioactive friedolanostanes and 11(10-->8)-abeolanostanes from the bark of Garcinia speciosa. JOURNAL OF NATURAL PRODUCTS 2004; 67:2043-2047. [PMID: 15620248 DOI: 10.1021/np049773h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A new friedolanostane, 7, and three triterpenes, 8, 9a, and 10, possessing the new 11(10-->8)-abeolanostane carbon skeleton were isolated from the bark of Garcinia speciosa. Structures were elucidated by spectroscopic and spectrometric studies and the structure of 8 by X-ray crystallographic analysis, thus forcing structure revision of a triterpene from the same source previously assumed to be a friedolanostane. These and several friedo- and lanostanes earlier isolated from the same source were evaluated for cytotoxicity against three human cell lines. Most were moderately active, with three friedolanostanes effective in inducing apoptosis in the MCF-7 cell line.
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Kuroda M, Mimaki Y, Ori K, Sakagami H, Sashida Y. 27-norlanostane glycosides from the bulbs of Muscari paradoxum. JOURNAL OF NATURAL PRODUCTS 2004; 67:2099-2103. [PMID: 15620262 DOI: 10.1021/np0401359] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Eight 27-norlanostane glycosides (1-8), including five new compounds (3 and 5-8), were isolated from the MeOH extract of the bulbs of Muscari paradoxum. The structures of the new compounds were determined on the basis of extensive spectroscopic analysis, including 2D NMR data, and the results of hydrolytic cleavage. The cytotoxic activity of 1-8 against HSC-2 human oral squamous cell carcinoma cells is also reported.
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Kavtaradze LK, Manley-Harris M, Nicholson BK. A low-toxicity method for the separation of lanosterol and dihydrolanosterol from commercial mixtures. Steroids 2004; 69:697-700. [PMID: 15465116 DOI: 10.1016/j.steroids.2004.07.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2004] [Revised: 05/03/2004] [Accepted: 07/28/2004] [Indexed: 11/25/2022]
Abstract
We describe an inexpensive, low-toxicity and high-yielding method for the production of pure lanosterol and dihydrolanosterol from the commercially available mixture. Optimum conditions are presented for the one-pot production of the intermediate 24,25 vicinal diol of lanosterol acetate (via either epoxidation or hydroxyhalogenation) which is readily separated from the unreacted dihydrolanosterol acetate. The lanosterol diol can then be converted to pure (>97%) lanosterol. Hypophosphorous acid was used for both the conversion of the epoxide to the diol, and as a catalyst for the hydroxyhalogenation by N-halosuccinimides of the olefinic bond.
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Shim SH, Ryu J, Kim JS, Kang SS, Xu Y, Jung SH, Lee YS, Lee S, Shin KH. New lanostane-type triterpenoids from Ganoderma applanatum. JOURNAL OF NATURAL PRODUCTS 2004; 67:1110-1113. [PMID: 15270562 DOI: 10.1021/np030383p] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Four new lanostane-type triterpenes were isolated from the MeOH extract of the fruiting bodies of Ganoderma applanatum. Their structures were established as 3beta,7beta,20,23xi-tetrahydroxy-11,15-dioxolanosta-8-en-26-oic acid (1), 7beta,20,23xi-trihydroxy-3,11,15-trioxolanosta-8-en-26-oic acid (2), 7beta,23xi-dihydroxy-3,11,15-trioxolanosta-8,20E(22)-dien-26-oic acid (3), and 7beta-hydroxy-3,11,15,23-tetraoxolanosta-8,20E(22)-dien-26-oic acid methyl ester (4), respectively, by extensive spectroscopic analyses.
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