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Ma X, Zhou F, Deng Y, Sun K, Zhang H, Zeng X, Zhang Y, Yu X. A New Steroid Ester from the Leaves of Melia azedarach. Chem Nat Compd 2018. [DOI: 10.1007/s10600-018-2513-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ge YZ, Zhou B, Xiao RX, Yuan XJ, Zhou H, Xu YC, Wainberg MA, Han YS, Yue JM. A new class of HIV-1 inhibitors and the target identification via proteomic profiling. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9283-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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3
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Douanla PD, Tabopda TK, Tchinda AT, Cieckiewicz E, Frédérich M, Boyom FF, Tsabang N, Yeboah S, Nkengfack AE, Tchuendem MHK. Antrocarines A-F, antiplasmodial ergostane steroids from the stem bark of Antrocaryon klaineanum. PHYTOCHEMISTRY 2015; 117:521-526. [PMID: 26232555 DOI: 10.1016/j.phytochem.2015.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 06/24/2015] [Accepted: 07/15/2015] [Indexed: 06/04/2023]
Abstract
During a study on the chemistry and biological activity of Antrocaryon klaineanum Pierre, six new sterols including 4,24(28)-ergostadiene-6α,7α-diol (1), 6α-methoxy-4,24(28)-ergostadiene-7α,20S-diol (2), 6α-methoxy-4,24(28)-ergostadien-7α-ol (3), 20S-hydroxy-24(28)-ergosten-3-one (4), 7α-hydroxy-4,24(28)-ergostadien-3-one (5), and 24(28)-ergostene-3β,6α-diol (6) were characterized by physical and spectroscopic means. The known steroids 7 and 8 were also isolated. The crude extract and the isolated compounds were evaluated for their ability to inhibit the 3D7 strain of Plasmodium falciparum. Compounds 2, 3, and 8 showed potent activity while that of the crude extract was moderate.
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Affiliation(s)
- Pascal D Douanla
- Department of Organic Chemistry, Faculty of Science, The University of Yaounde-1, P.O. Box 812, Yaounde, Cameroon
| | - Turibio Kuiate Tabopda
- Department of Organic Chemistry, Faculty of Science, The University of Yaounde-1, P.O. Box 812, Yaounde, Cameroon
| | - Alembert T Tchinda
- Laboratory of Phytochemistry, Institute of Medical Research and Medicinal Plant Studies, (IMPM), P.O. Box 6163, Yaounde, Cameroon
| | - Ewa Cieckiewicz
- Université de Liège, Laboratoire de Pharmacognosie, Centre Interfacultaire de Recherche sur le médicament (CIRM), Département de Pharmacie, Université de Liège, B36, B-4000 Liège, Belgium
| | - Michel Frédérich
- Université de Liège, Laboratoire de Pharmacognosie, Centre Interfacultaire de Recherche sur le médicament (CIRM), Département de Pharmacie, Université de Liège, B36, B-4000 Liège, Belgium
| | - Fabrice Fekam Boyom
- Department of Biochemistry, Faculty of Science, The University of Yaounde-1, P.O. Box 812, Yaounde, Cameroon
| | - Nole Tsabang
- Laboratory of Phytochemistry, Institute of Medical Research and Medicinal Plant Studies, (IMPM), P.O. Box 6163, Yaounde, Cameroon
| | - Samuel Yeboah
- Department of Chemistry, University of Botswana, Private Bag 00704, Gaborone, Botswana
| | - Augustin E Nkengfack
- Department of Organic Chemistry, Faculty of Science, The University of Yaounde-1, P.O. Box 812, Yaounde, Cameroon
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Zhang J, Liang Y, Wang KL, Liao XJ, Deng Z, Xu SH. Antifouling steroids from the South China Sea gorgonian coral Subergorgia suberosa. Steroids 2014; 79:1-6. [PMID: 24184487 DOI: 10.1016/j.steroids.2013.10.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 10/18/2013] [Accepted: 10/22/2013] [Indexed: 10/26/2022]
Abstract
Two new unusual cholestane derivatives, pentacyclic steroid 16,22-epoxy-20β,23S-dihydroxycholest-1-ene-3-one (1) and 20β,23S-dihydroxycholest-1-ene-3,22-dione (2), along with two new pregnane derivatives, 15β,17α-dihydroxypregna-4,6-diene-3,20-dione (3) and 11α-hydroxypregna-4-ene-3,6,20-trione (4), were isolated from the South China Sea gorgonian coral Subergorgia suberosa. Their structures were established based on the extensive analyses of 2D NMR, IR, and HRMS. Antifouling tests against Balanus amphitrite larvae settlement indicated that 1 and 2 exhibited inhibitory effect with EC50 values of 5.3, and 14.5 μg/mL, respectively.
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Affiliation(s)
- Jun Zhang
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Yan Liang
- Division of Life Science, School of Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region, PR China
| | - Kai-Ling Wang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Xiao-Jian Liao
- Department of Chemistry, Jinan University, Guangzhou 510632, PR China
| | - Zhou Deng
- Department of Chemistry, Jinan University, Guangzhou 510632, PR China
| | - Shi-Hai Xu
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Department of Chemistry, Jinan University, Guangzhou 510632, PR China.
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Zhang G, Tang X, Cheng C, Gong K, Zhang X, Zhu H, Wu R, Li P, Li G. Cytotoxic 9,11-secosteroids from the South China Sea gorgonian Subergorgia suberosa. Steroids 2013; 78:845-50. [PMID: 23688970 DOI: 10.1016/j.steroids.2013.05.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 05/07/2013] [Accepted: 05/09/2013] [Indexed: 11/15/2022]
Abstract
Ten new 9,11-secosteroids, subergorgols A-J (1-10), including two pairs of epimers (3/4, and 6/7), along with three known analogues (11-13) were isolated from the South China Sea gorgonian Subergorgia suberosa. The structures of these compounds were elucidated on the basis of extensive spectroscopic analyses and comparison with the literature data. The cytotoxicities in vitro against three selected human tumor cell lines for all the compounds were evaluated. Compound 9 showed significant cytotoxicities toward both K562 and MDA-MB-231 cell lines with IC50 values of 5.5 and 6.2μM, respectively, and compound 10 also showed inhibitory activity against K562 cell line with an IC50 value of 6.5μM.
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Affiliation(s)
- Gang Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
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Shin K, Chin J, Hahn D, Lee J, Hwang H, Won DH, Ham J, Choi H, Kang E, Kim H, Ju MK, Nam SJ, Kang H. Sterols from a soft coral, Dendronephthya gigantea as farnesoid X-activated receptor antagonists. Steroids 2012; 77:355-9. [PMID: 22266736 DOI: 10.1016/j.steroids.2011.12.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 12/22/2011] [Accepted: 12/24/2011] [Indexed: 01/24/2023]
Abstract
Three new steroids 3-oxocholest-1,22-dien-12β-ol (1), 3-oxocholest-1,4-dien-20β-ol (2), 3-oxocholest-1,4-dien-12β-ol (3), and three known steroids (20S)-20-Hydroxyergosta-1,4,24(28)-trien-3-one (4) [7a], 5α,8α-Epidioxycholesta-6,22-dien-3β-ol (5) [10] and 5-cholestene-3β,12β-diol (6) [11] were isolated from a soft coral Dendronephthya gigantea. Their chemical structures and relative stereochemistry were elucidated by the analysis of HRMS and 2-D NMR spectroscopic data. The steroids 1 and 2 showed notable inhibitory activity against farnesoid X-activated receptor (FXR) with IC(50)'s 14 and 15μM.
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Affiliation(s)
- Kyoungjin Shin
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Republic of Korea
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Wagner D, Luck DG, Toonen RJ. The biology and ecology of black corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia). ADVANCES IN MARINE BIOLOGY 2012; 63:67-132. [PMID: 22877611 DOI: 10.1016/b978-0-12-394282-1.00002-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Antipatharians, commonly known as black corals, are treasured by many cultures for medicinal purposes and to produce jewellery. Despite their economic and cultural importance, very little is known about the basic biology and ecology of black corals because most species inhabit deeper-water environments (>50m) which are logistically challenging to study. There has been a recent increase of studies focusing on antipatharians; however, these have not yet been comprehensively reviewed. This literature review seeks to summarize the available information on the biology and ecology of antipatharians. Although black corals occur throughout all oceans and from subtidal to abyssal depths, they are particularly common in tropical and subtropical regions at depths below 50m. Antipatharians are generally found in areas with hard substrates, low-light and strong currents. Under favourable conditions, some black coral species form dense aggregations to the point of becoming ecologically dominant. Zooplankton appears to be the major component of the diet of black corals, which feed as suspension feeders and use mucus and nematocysts to capture their prey. Previously categorized as azooxanthellate corals, recent research has revealed that many antipatharians appear capable of harbouring symbionts, but unlike other corals, dinoflagellates of the genus Symbiodinium are generally not important to the nutrition of black corals. Antipatharians reproduce through both sexual and asexual processes. In general, polyps and colonies are gonochoric, with fertilization and larval development likely occurring externally; however, to date antipatharian larvae have only been observed for a single species. Antipatharians are generally slow-growing and long-lived organisms with maximum longevities ranging from decades to millennia. Black corals are more abundant with depth, a pattern which has been hypothesized to avoid competition with obligate photosynthetic fauna. Additionally, antipatharians may compete for space by using sweeper tentacles and secondary metabolites. With the exception of a few predators such as gastropods and green sea turtles, antipatharians appear to be little impacted by predation. Like other corals, antipatharians can be habitat engineers of importance to a myriad of associated organisms including arthropods, annelids, echinoderms, mollusks, sponges and cnidarians, several of which are adapted to live exclusively on black corals. Given that most black coral species inhabit remote environments, our understanding of these organisms will depend on our ability to effectively sample and study them. Future collections, particularly in deeper waters (>50m), will be needed to determine whether antipatharian species have limited biogeographical distributions or whether this has simply been an artefact of low sampling efforts away from population centres and taxonomic uncertainties within this group. Additionally, biological and ecological studies require increased sample sizes because most information is currently derived from the examination of only a handful of specimens.
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Affiliation(s)
- Daniel Wagner
- Papahānaumokuākea Marine National Monument, Honolulu, Hawai'i, USA.
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Bai X, Chen Y, Chen W, Lei H, Shi G. Volatile constituents, inorganic elements and primary screening of bioactivity of black coral cigarette holders. Mar Drugs 2011; 9:863-878. [PMID: 21673895 PMCID: PMC3111188 DOI: 10.3390/md9050863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Revised: 05/05/2011] [Accepted: 05/09/2011] [Indexed: 02/05/2023] Open
Abstract
Black corals (BC) have been used for a long time in Chinese medicine, and may have some pharmaceutical functions when used as material for cigarette holders in southeast China. This study is aimed to investigate the bioactivities of volatile constituents in BC and to explore the folklore behind the use of BC cigarette holders (BCCHs). We extracted the volatile constituents of BC by supercritical fluid extraction (SFE) with carbon dioxide (CO₂-SFE), then identified and analyzed the constituents by gas chromatography-mass spectrometry (GC-MS). In total, 15 components were reliably identified in BC and found to be biologically active. These included triethyl phosphate, butylated hydroxytoluene, cedrol, n-hexadecanoic acid, squalene, and cholesterol. Meanwhile 13 inorganic elements (P, Ca, Mg, S, B, Si, Fe, Cu, Zn, Ba, etc.) were determined by inductively coupled plasma spectrometer (ICPS). In the bioactivity tests, the BC extract (BCE) showed a scavenging activity of 2,2-diphenyl-1-picrylhydrazyl free radicals and hydroxyl radicals by phenanthroline-Fe (II) oxidation and moderate inhibition of Gram-positive microorganisms. The antioxidant and antimicrobial activities of BC, which are related to the active chemical composition, may explain the perceived benefit for cigarette smokers who use BCCHs.
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Affiliation(s)
- Xueting Bai
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China; E-Mails: (X.B.); (Y.C.)
| | - Yicun Chen
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China; E-Mails: (X.B.); (Y.C.)
| | - Weizhou Chen
- Marine Biology Institute, Shantou University, Shantou 515063, China; E-Mail:
| | - Huaping Lei
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; E-Mail:
| | - Ganggang Shi
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China; E-Mails: (X.B.); (Y.C.)
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Bunyathaworn P, Boonananwong S, Kongkathip B, Kongkathip N. Further study on synthesis and evaluation of 3,16,20-polyoxygenated steroids of marine origin and their analogs as potent cytotoxic agents. Steroids 2010; 75:432-44. [PMID: 20188119 DOI: 10.1016/j.steroids.2010.02.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2009] [Revised: 02/11/2010] [Accepted: 02/11/2010] [Indexed: 11/26/2022]
Abstract
A series of new polyoxygenated steroid derivatives with various steroid skeleton moieties were synthesized. Antitumor activity of the compounds against three tumor cell lines (Breast cancer MCF7, lung cancer NCI and oral cancer KB) were evaluated. Compounds with aromatic A ring of this series exhibited the most potent cytotoxicities in all tested cells. The absence of OH at C-16 or lack of cholesterol like side chain at C-20 in the steroid skeleton apparently result in decreased cytotoxicity. The compound became inactive when the side chain contains double bond at C-24-C-25. When hydroxyl group at C-3 was protected no cytotoxicities against MCF7 and NCI and considerable low cytotoxicity against KB cell lines were observed.
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Affiliation(s)
- Potjamarn Bunyathaworn
- Natural Products and Organic Synthesis Research Unit (NPOS), Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Kasetsart University, 50 Phaholyotin Road, Chatuchak, Bangkok 10900, Thailand
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Al-Lihaibi SS, Ayyad SEN, Shaher F, Alarif WM. Antibacterial Sphingolipid and Steroids from the Black Coral Antipathes dichotoma. Chem Pharm Bull (Tokyo) 2010; 58:1635-8. [DOI: 10.1248/cpb.58.1635] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | - Fekry Shaher
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University
| | - Walied Mohamed Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University
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Wu SB, Ji YP, Zhu JJ, Zhao Y, Xia G, Hu YH, Hu JF. Steroids from the leaves of Chinese Melia azedarach and their cytotoxic effects on human cancer cell lines. Steroids 2009; 74:761-5. [PMID: 19379765 DOI: 10.1016/j.steroids.2009.04.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2009] [Revised: 03/31/2009] [Accepted: 04/08/2009] [Indexed: 12/01/2022]
Abstract
Three new (1-3) and several known (4-6) steroids were isolated from the leaves of Chinese Melia azedarach. The structures of the new compounds were elucidated by means of spectroscopic methods including 2D NMR techniques and mass spectrometry to be (20S)-5,24(28)-ergostadiene-3beta,7alpha,16beta,20-tetrol (1), (20S)-5-ergostene-3beta,7alpha,16beta,20-tetrol (2), and 2alpha,3beta-dihydro-5-pregnen-16-one (3). The cytotoxicities of the isolated compounds against three human cancer cell lines (A549, H460, U251) were evaluated; only compounds 1, 2, and (20S)-5-stigmastene-3beta,7alpha,20-triol (4) were found to show significant cyctotoxic effects with IC(50)s from 12.0 to 30.1 microg/mL.
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Affiliation(s)
- Shi-Biao Wu
- Department of Natural Products for Chemical Genetic Research, Key Laboratory of Brain Functional Genomics, Ministry of Education, East China Normal University, Shanghai, PR China
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12
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Qi SH, Su GC, Wang YF, Liu QY, Gao CH. Alkaloids from the South China Sea Black Coral Antipathes dichotoma. Chem Pharm Bull (Tokyo) 2009; 57:87-8. [DOI: 10.1248/cpb.57.87] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shu-Hua Qi
- Key Laboratory of Marine Bio-resourses Sustainable Utilization/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, The Chinese Academy of Sciences
| | - Guo-Chen Su
- Key Laboratory of Marine Bio-resourses Sustainable Utilization/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, The Chinese Academy of Sciences
| | - Yi-Fei Wang
- Guangzhou Jinan Biomedicine Research and Development Center
| | - Qiu-Ying Liu
- Guangzhou Jinan Biomedicine Research and Development Center
| | - Cheng-Hai Gao
- Key Laboratory of Marine Bio-resourses Sustainable Utilization/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, The Chinese Academy of Sciences
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Chao CH, Wen ZH, Su JH, Chen IM, Huang HC, Dai CF, Sheu JH. Further study on anti-inflammatory oxygenated steroids from the octocoral Dendronephthya griffini. Steroids 2008; 73:1353-8. [PMID: 18640138 DOI: 10.1016/j.steroids.2008.06.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Revised: 06/13/2008] [Accepted: 06/17/2008] [Indexed: 11/29/2022]
Abstract
Five new steroids, namely griffinisterones F-I (1-4) and griffinipregnone (5) have been isolated from the octocoral Dendronephthya griffini. The structures of these compounds were elucidated by extensive spectroscopic analysis. Compounds 1-3 were found to significantly inhibit the accumulation of the pro-inflammatory iNOS protein of the LPS-stimulated RAW264.7 macrophage cells at 10 microM. At the same concentrations 2 also could significantly inhibit the accumulation of the pro-inflammatory COX-2 protein.
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Affiliation(s)
- Chih-Hua Chao
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan, ROC
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Optical, thermal, and structural characterization of the sclerotized skeleton of two antipatharian coral species. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2007. [DOI: 10.1016/j.msec.2006.10.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Garrido L, Zubía E, Ortega MJ, Salvá J. Isolation and structure elucidation of new cytotoxic steroids from the gorgonian Leptogorgia sarmentosa. Steroids 2000; 65:85-8. [PMID: 10639019 DOI: 10.1016/s0039-128x(99)00083-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The gorgonian Leptogorgia sarmentosa contains three new steroids, (20S)-20-hydroxycholestane-3,16-dione (1), (16S, 20S)-16,20-dihydroxycholestan-3-one (2), and (20S)-20-hydroxycholest-1-ene-3,16-dione (3) together with a known related compound (4). Their structures were defined by spectroscopic analysis. The new steroids exhibited significant cytotoxicity against four tumor cell lines (ED50 = 1 microg/ml).
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Affiliation(s)
- L Garrido
- Departamento de Química Orgánica, Facultad de Ciencias del Mar, Universidad de Cádiz, Spain
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Wang GYS, Crews P. Geodisterol, a novel polyoxygenated sterol with an aromatic A ring from the tropical marine sponge Geodia sp. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01894-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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