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Mohamed TA, Abdelmawgoud SM, Hamdy AA, Ibrahim MAA, Elshamy AI, Atia MAM, Kassem HA, Hegazy MEF, Selim NM. A new cembranoid from the Red Sea soft coral Sarcophyton acutum. Nat Prod Res 2024; 38:512-522. [PMID: 36200738 DOI: 10.1080/14786419.2022.2130915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/25/2022] [Indexed: 10/10/2022]
Abstract
The Red Sea soft coral Sarcophyton acutum ethyl acetate extract has afforded one new cembranoid; sarcacutumolid A (1), along with six known metabolites have been isolated from S. acutum for the first time (2-7). Chemical structures were elucidated by employing several spectroscopic analyses. The cytotoxic potential of the isolated compounds was assessed against four human cancer cell lines; hepatocellular (HepG2), cervical (HeLa), breast (MCF-7) and colorectal cancer (Colo-205). Sarcacutumolid A (1) and gorgosterol (7) inhibited colorectal cancer cell proliferation in a concentration-dependent manner with IC50 values of 35.5 and 44.0 μM, respectively.
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Affiliation(s)
- Tarik A Mohamed
- Chemistry of Medicinal Plants Dept, Chemistry of Medicinal Plants, Dokki, Giza, Egypt
| | - Seba M Abdelmawgoud
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza, Egypt
| | - Abdelhamid A Hamdy
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza, Egypt
| | - Mahmoud A A Ibrahim
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science, Minia University, Minia, Egypt
| | - Abdelsamed I Elshamy
- Department of Natural Compounds Chemistry, National Research Centre, Dokki, Giza, Egypt
| | - Mohamed A M Atia
- Molecular Genetics and Genome Mapping Laboratory, Genome Mapping Department, Agricultural Genetic Engineering Research Institute (AGERI), ARC, Giza, Egypt
| | - Hanaa A Kassem
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | | | - Nabil M Selim
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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2
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Peng H, Zeng Y, Wang H, Chang W, Chen H, Zhou F, Dai H, Wang X. Six Undescribed Capnosane-Type Macrocyclic Diterpenoids from South China Sea Soft Coral Sarcophyton crassocaule: Structural Determination and Biological Evaluation. Mar Drugs 2023; 21:645. [PMID: 38132966 PMCID: PMC10744964 DOI: 10.3390/md21120645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
Six undescribed capnosane-type macrocyclic diterpenes sarcocrassolins A-F (1-6) and one related known analog pavidolide D (7) were isolated from Sarcophyton crassocaule, a soft coral collected off the Nansha Islands, in the South China Sea. Their complete structures, relative configurations and absolute configurations were established through comprehensive spectroscopic analysis, quantum mechanical nuclear magnetic resonance (QM-NMR) and single-crystal X-ray diffraction. Sarcocrassolins D (4) and E (5) showed inhibitory activity against lipopolysaccharide (LPS)-stimulated inflammatory responses in RAW264.7 cells with IC50 values of 76.8 ± 8.0 μM and 93.0 ± 3.8 μM, respectively.
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Affiliation(s)
- Hanyang Peng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China; (H.P.); (H.W.); (W.C.); (H.C.)
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China;
| | - Yanbo Zeng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China; (H.P.); (H.W.); (W.C.); (H.C.)
- Zhanjiang Experimental Station of Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524013, China
| | - Hao Wang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China; (H.P.); (H.W.); (W.C.); (H.C.)
| | - Wenjun Chang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China; (H.P.); (H.W.); (W.C.); (H.C.)
- Zhanjiang Experimental Station of Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524013, China
| | - Huiqin Chen
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China; (H.P.); (H.W.); (W.C.); (H.C.)
| | - Fengjuan Zhou
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China;
| | - Haofu Dai
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China; (H.P.); (H.W.); (W.C.); (H.C.)
| | - Xiachang Wang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China;
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3
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Shen SM, Yu JD, Su MZ, Gu YC, Yu DD, Yao LG, Guo YW, Wang H. Two New Cembranoids from the Chinese Soft Coral Sarcophyton boettgeri. Chem Biodivers 2023:e202300662. [PMID: 37254816 DOI: 10.1002/cbdv.202300662] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 06/01/2023]
Abstract
Two new cembranoids, namely sarcoboettgerols D and E, together with four known related ones, have been isolated from the soft coral Sarcophyton boettgeri collected from Weizhou Island in the South China Sea. Their structures including absolute configurations were elucidated by extensive spectroscopic analysis, quantum mechanical nuclear magnetic resonance methods, time-dependent density functional theory-electronic circular dichroism calculations, as well as comparison with the reported data in the literature. A plausible biogenetic relationship of four cembranoids was proposed. In bioassays, sarcomililatin B exhibited cytotoxic activity against H1299 cell (IC50 = 35.0 μM), whereas sarcomililatin B and sarcomililatin A displayed moderate antibacterial activities (MIC 17.4-34.8 µg/mL).
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Affiliation(s)
- Shou-Mao Shen
- Shanghai Institute of Materia Medica Chinese Academy of Sciences, State key Laboratory of Drug Research, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, 201203, Shanghai, CHINA
| | - Jia-Dong Yu
- Zhejiang University of Technology, College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, NO.18,ChaowangRoad, Gongshu District, Hangzhou, Hangzhou, CHINA
| | - Ming-Zhi Su
- Bohai rim Advanced Research Institute for Drug Discovery, Shandong Laboratory of Yantai Drug Discovery, 198 Binhai East Road, Muping District, Yantai City, Yantai, CHINA
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre, Syngenta, Bracknell, Bracknell, UNITED KINGDOM
| | - Dan-Dan Yu
- Bohai rim Advanced Research Institute for Drug Discovery, Shandong Laboratory of Yantai Drug Discovery, Bohai rim Advanced Research Institute for Drug Discovery, 198 Binhai East Road, Muping District, Yantai City, Yantai, CHINA
| | - Li-Gong Yao
- Shanghai Institute of Materia Medica Chinese Academy of Sciences, State Key Laboratory of Drug Research, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, CHINA
| | - Yue-Wei Guo
- Shanghai Institute of Materia Medica Chinese Academy of Sciences, State Key Laboratory of Drug Research, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, CHINA
| | - Hong Wang
- Zhejiang University of Technology, College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, NO.18,ChaowangRoad, Gongshu District, Hangzhou, Hangzhou, CHINA
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4
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Sura MB, Zhu YX, Cheng Y. X-Ray Study of Cembranoids with Flexible Rings from Boswellia papyrifera Resins Allowing Structural Revisions of Misleading Structures in the Past 70 Years. Chemistry 2023:e202300559. [PMID: 36949022 DOI: 10.1002/chem.202300559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/24/2023]
Abstract
30 new highly oxygenated and stereogenic 14-membered macrocyclic diterpenoids, papyrifuranols A-Z (1-26) and AA-AD (27-30), and 8 known analogs were isolated from Boswellia papyrifera resins. All the structures were characterized by detailed spectral analyses, quantum calculations, X-ray diffraction, and modified Mosher's methods. Notably, six previously reported structures were revised. Our study points out misleading factors of macrocyclic cembranoids (CBs) representation in the past 7 decades by analysis of 25 X-ray structures, lending a hand for innately challengeable structure identification of such flexible macrocyclic CBs and avoiding following the tracks of an overturned cart during future structure characterization and total synthesis. Biosynthetic conversions of all the isolates were proposed and wound healing bioassays reveal that papyrifuranols N-P could significantly stimulate the proliferation and differentiation of umbilical cord mesenchymal stem cells.
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Affiliation(s)
- Madhu Babu Sura
- Shenzhen University Health Science Center, Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, INDIA
| | - Yan-Xia Zhu
- Shenzhen University Health Science Center, Department of Medical Cell Biology & Genetics, School of Medicine, CHINA
| | - Yongxian Cheng
- Shenzhen University Health Science Center, School of pharmaceutical sciences, xueyuan street No 1066, 508060, Shenzheng, CHINA
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5
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Song YT, Yu DD, Zhi Su M, Luo H, Cao JG, Yao LG, Liang LF, Guo YW, Yang F. Antitumor Cembrane Diterpenoids from the South China Sea Soft Coral Lobophytum sp. Chem Biodivers 2023; 20:e202300217. [PMID: 36855273 DOI: 10.1002/cbdv.202300217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/02/2023]
Abstract
Two new highly functionalized cembrane diterpenoids named ximaolobophytolides A (1) and B (2) as minor components, together with seven related known compounds (3-9), have been isolated and identified from the Ximao soft coral Lobophytum sp. They were characterized by the presence of an α-methylene-γ-lactone moiety. Based on the comprehensive analyses of 1D and 2D NMR spectroscopic data, the absolute configurations of these two new compounds were elucidated by the combination of quantum mechanical (QM)-NMR and time-dependent density functional theory/electronic circular dichroism (TDDFT-ECD) calculation approaches. In the anti-tumor bioassays, compounds 3-9 showed moderate to significant inhibitory effects (IC50 values ranging from 29.66 to 0.39 μM) against the proliferations of five tumor cells HEL, A549, H1975, MDA-MB-231, and H1299. It might be worthy to point out that compounds 4, 7, and 8 exhibited better anti-tumor activities than that of the positive control Doxorubicin.
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Affiliation(s)
- Yu-Ting Song
- Biology Department, College of Life Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Dan-Dan Yu
- Shandong Laboratory of Yantai Drug Discovery, Bohai rim Advanced Research Institute for Drug Discovery, Yantai, 264117, China
| | - Ming Zhi Su
- Shandong Laboratory of Yantai Drug Discovery, Bohai rim Advanced Research Institute for Drug Discovery, Yantai, 264117, China
| | - Hui Luo
- Key Laboratory of Zhanjiang for Research and Development Marine Microbial Resources in the Beibu Gulf Rim, Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Jian-Guo Cao
- Biology Department, College of Life Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Lin-Fu Liang
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha, 410004, China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China.,Shandong Laboratory of Yantai Drug Discovery, Bohai rim Advanced Research Institute for Drug Discovery, Yantai, 264117, China.,Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Aoshanwei, Jimo, Qingdao 266237, China
| | - Fan Yang
- Biology Department, College of Life Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China
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6
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Zhang D, Wang D, Li Z, Guo D, Li W. New cembranoids from the leaves and twigs of Croton yanhuii Y. T. Chang. Nat Prod Res 2023:1-7. [PMID: 36762720 DOI: 10.1080/14786419.2023.2175357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 02/11/2023]
Abstract
Crotonyanes A (1) and B (2), two new cembranoids were isolated from the leaves and twigs of Croton yanhuii Y. T. Chang. Their structures were elucidated by extensive spectroscopic analyses and quantum chemical calculations. Bioassays verified that compound 1 exhibited an inhibitory effect on nitric oxide (NO) production in RAW 264.7 cells, with an IC50 value of 30.6 ± 4.3 µM.
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Affiliation(s)
- Daidi Zhang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
| | - Didi Wang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Zhenwei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Dean Guo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Wei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
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7
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Wu M, Zhou KB, Dai HF, Zeng YB. [ Cembranoids and their bioactivities in soft coral Sarcophyton glaucum]. Zhongguo Zhong Yao Za Zhi 2023; 48:707-714. [PMID: 36872234 DOI: 10.19540/j.cnki.cjcmm.20220905.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Chemical constituents in soft coral Sarcophyton glaucum were separated and purified by various chromatographic methods. Based on the spectral data, physicochemical properties, and comparison with the data reported in the literature, nine cembranoids, including a new cembranoid named sefsarcophinolide(1) together with eight known cembranoids, namely(+)-isosarcophine(2), sarcomilitatin D(3), sarcophytonolide J(4),(1S,3E,7E,13S)-11,12-epoxycembra-3,7,15-triene-13-ol(5), sarcophytonin B(6),(-)-eunicenone(7), lobophytin B(8), and arbolide C(9), were identified. As revealed by biological activity experiment results, compounds 2-6 had weak acetylcholinesterase inhibitory activity, and compound 5 displayed weak cytotoxicity against K562 tumor cell line.
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Affiliation(s)
- Min Wu
- School of Horticulture, Hainan University Haikou 570228, China Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences Haikou 571101, China
| | - Kai-Bing Zhou
- School of Horticulture, Hainan University Haikou 570228, China
| | - Hao-Fu Dai
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences Haikou 571101, China
| | - Yan-Bo Zeng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences Haikou 571101, China Zhanjiang Experiment Station, Chinese Academy of Tropical Agricultural Sciences Zhanjiang 524013, China
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8
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Hoff O, Kratena N, Aynetdinova D, Christensen KE, Donohoe TJ. A Vicinal Diol Approach for the Total Synthesis of Molestin E, ent-Sinulacembranolide A and ent-Sinumaximol A. Chemistry 2022; 28:e202202464. [PMID: 35946550 PMCID: PMC9826425 DOI: 10.1002/chem.202202464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Indexed: 01/11/2023]
Abstract
In this work an approach for the synthesis of furanocembranoid natural products containing the C-7,8-diol moiety is disclosed. This culminated in the first total synthesis of the natural product molestin E, together with ent-sinulacembranolide A and ent-sinumaximol A as well as a thorough exploration of their chemistry. Late-stage ring-closure of the C-7,8-diols to the corresponding epoxides was also demonstrated. Key features of this synthetic strategy include a stereoselective Baylis-Hillman reaction, ring-closing metathesis and Shiina macrolactonisation. Chiral-pool materials were deployed to ensure the desired absolute stereochemistry which was confirmed by late-stage single crystal X-ray diffraction.
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Affiliation(s)
- Oskar Hoff
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Nicolas Kratena
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Daniya Aynetdinova
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Kirsten E. Christensen
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Timothy J. Donohoe
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
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9
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Lin N, Wang H, Guo YW. Iso-ximaonanolobatin G, a minor new cembrane-type diterpenoid from the South China Sea soft coral Sinularia nanolobata. J Asian Nat Prod Res 2022; 24:589-595. [PMID: 35048750 DOI: 10.1080/10286020.2021.2024519] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
A new cembrane-type diterpenoid, named iso-ximaonanolobatin G (1), and one known related one, namely ximaonanolobatin G (2), along with four known steroids, were isolated from the South China Sea soft coral Sinularia nanolobata. Their full structures were elucidated by extensive spectroscopic analysis, quantum mechanical (QM)-NMR methods, and by the comparison of the spectroscopic data with those reported in the literature.
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Affiliation(s)
- Na Lin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Hong Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yue-Wei Guo
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Bohai Rim Advanced Research Institute for Drug Discovery, Yantai 264000, China
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10
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Zhang B, Liu D, Ji W, Otsuki K, Higai K, Zhao F, Li W, Koike K, Qiu F. Sacraoxides A-G, Bioactive Cembranoids from Gum Resin of Boswellia sacra. Front Chem 2021; 9:649287. [PMID: 33869144 PMCID: PMC8044883 DOI: 10.3389/fchem.2021.649287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/16/2021] [Indexed: 11/21/2022] Open
Abstract
Seven undescribed cembranoids, sacraoxides A–G (1, 3–8) were isolated from the gum resin of Boswellia sacra. Their structures were elucidated by extensive physicochemical and spectroscopic analysis, as well as ECD calculation, modified Mosher’s method and X-ray diffraction crystallography. Compounds 6 and 7 exhibited inhibitory activities on nitric oxide (NO) production induced by lipopolysaccharide in RAW264.7 cells with IC50 values of 24.9 ± 1.7 and 36.4 ± 2.9 μM.
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Affiliation(s)
- Bingyang Zhang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Di Liu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wenyue Ji
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Kouharu Otsuki
- Faculty of Pharmaceutical Sciences, Toho University, Tokyo, Japan
| | - Koji Higai
- Faculty of Pharmaceutical Sciences, Toho University, Tokyo, Japan
| | - Feng Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, China
| | - Wei Li
- Faculty of Pharmaceutical Sciences, Toho University, Tokyo, Japan
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Tokyo, Japan
| | - Feng Qiu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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11
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Hassan HM, Rateb ME, Hassan MH, Sayed AM, Shabana S, Raslan M, Amin E, Behery FA, Ahmed OM, Bin Muhsinah A, A M Gulder T, Ramadan Abdelmohsen U. New Antiproliferative Cembrane Diterpenes from the Red Sea Sarcophyton Species. Mar Drugs 2019; 17:E411. [PMID: 31336764 DOI: 10.3390/md17070411] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 06/28/2019] [Accepted: 07/08/2019] [Indexed: 12/20/2022] Open
Abstract
The combination of liquid chromatography coupled to high resolution mass spectrometry (LC-HRESMS)-based dereplication and antiproliferative activity-guided fractionation was applied on the Red Sea-derived soft coral Sarcophyton sp. This approach facilitated the isolation of five new cembrane-type diterpenoids (1–5), along with two known analogs (6 and 7), as well as the identification of 19 further, known compounds. The chemical structures of the new compounds were elucidated while using comprehensive spectroscopic analyses, including one-dimensional (1D) and two-dimensional (2D) NMR and HRMS. All of the isolated cembranoids (1–7) showed moderate in vitro antiproliferative activity against a human breast cancer cell line (MCF-7), with IC50 ranging from 22.39–27.12 µg/mL. This class of compounds could thus serve as scaffold for the future design of anticancer leads.
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12
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Byler KG, Setzer WN. Protein Targets of Frankincense: A Reverse Docking Analysis of Terpenoids from Boswellia Oleo-Gum Resins. Medicines (Basel) 2018; 5:medicines5030096. [PMID: 30200355 PMCID: PMC6163972 DOI: 10.3390/medicines5030096] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 12/12/2022]
Abstract
Background: Frankincense, the oleo-gum resin of Boswellia trees, has been used in traditional medicine since ancient times. Frankincense has been used to treat wounds and skin infections, inflammatory diseases, dementia, and various other conditions. However, in many cases, the biomolecular targets for frankincense components are not well established. Methods: In this work, we have carried out a reverse docking study of Boswellia diterpenoids and triterpenoids with a library of 16034 potential druggable target proteins. Results:Boswellia diterpenoids showed selective docking to acetylcholinesterase, several bacterial target proteins, and HIV-1 reverse transcriptase. Boswellia triterpenoids targeted the cancer-relevant proteins (poly(ADP-ribose) polymerase-1, tankyrase, and folate receptor β), inflammation-relevant proteins (phospholipase A2, epoxide hydrolase, and fibroblast collagenase), and the diabetes target 11β-hydroxysteroid dehydrogenase. Conclusions: The preferential docking of Boswellia terpenoids is consistent with the traditional uses and the established biological activities of frankincense.
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Affiliation(s)
- Kendall G Byler
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
| | - William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
- Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA.
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13
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Peng BR, Lu MC, El-Shazly M, Wu SL, Lai KH, Su JH. Aquaculture Soft Coral Lobophytum crassum as a Producer of Anti-Proliferative Cembranoids. Mar Drugs 2018; 16:md16010015. [PMID: 29316672 PMCID: PMC5793063 DOI: 10.3390/md16010015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/14/2017] [Accepted: 12/19/2017] [Indexed: 01/20/2023] Open
Abstract
Our continuous search for marine bioactive secondary metabolites led to the screening of crude extracts from a variety of aquaculture soft corals. The ethyl acetate (EtOAc) extract of Lobophytum crassum showed a distinctive chemical profile that was different from the wild type. It demonstrated significant anti-proliferative activity against Molt 4 leukemia cell with an IC50 value of 1 μg/mL after 24 h. Chemical investigation focusing on the unique peaks in L. crassum profile led to the discovery of a new α-tocopherol crassumtocopherol C (1), and two new cembrane-based diterpenoids culobophylins D (2) and E (3), along with ten known cembranoids (4–13). The structures of these isolates were elucidated using extensive spectroscopic techniques and a comparison with previously published data of related metabolites. Compound 2 was found to possess the first identified saturated internal C4-O-C14 linkage six-membered ring among all cembrane-type diterpenoids. The anti-proliferative activity of all the isolates (except 3) was evaluated against a limited panel of leukemia cell lines (Molt 4, K562, U937, and Sup-T1). The major compounds 8 and 10 exhibited the most anti-proliferative potent effect, with IC50 values ranging from 1.2 to 7.1 μM. The Structure Activity Relationship (SAR) of the isolates suggested that the presence of lactone moieties is crucial for the anti-proliferative activity against leukemia cells. Our work indicated that the development of an efficient aquaculture protocols for soft corals led to the discovery of new secondary metabolites with unique structural features. Such protocols can lead to a sustainable supply of biologically active compounds in enough quantities for the pharmaceutical industry.
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Affiliation(s)
- Bo-Rong Peng
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University (NSYSU), 70 Lien-Hai Road, Kaohsiung 80424, Taiwan.
- Doctoral Degree Program in Marine Biotechnology, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan.
| | - Mei-Chin Lu
- National Museum of Marine Biology & Aquarium, Pingtung 94450, Taiwan.
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 94450, Taiwan.
| | - Mohamed El-Shazly
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt.
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11432, Egypt.
| | - Shwu-Li Wu
- General Study Center, National Kaohsiung Marine University, Kaohsiung 80543, Taiwan.
| | - Kuei-Hung Lai
- National Museum of Marine Biology & Aquarium, Pingtung 94450, Taiwan.
| | - Jui-Hsin Su
- National Museum of Marine Biology & Aquarium, Pingtung 94450, Taiwan.
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 94450, Taiwan.
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Farag MA, Westphal H, Eissa TF, Wessjohann LA, Meyer A. Effect of Oxylipins, Terpenoid Precursors and Wounding on Soft Corals' Secondary Metabolism as Analyzed via UPLC/MS and Chemometrics. Molecules 2017; 22:E2195. [PMID: 29232862 DOI: 10.3390/molecules22122195] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 11/30/2017] [Accepted: 12/02/2017] [Indexed: 12/13/2022] Open
Abstract
The effect of three oxylipin analogues, a terpenoid intermediate and wounding on the secondary metabolism of the soft corals Sarcophyton glaucum and Lobophyton pauciflorum was assessed. Examined oxylipins included prostaglandin (PG-E1), methyl jasmonate (MeJA), and arachidonic acid (AA) in addition to the diterpene precursor geranylgeranylpyrophosphate (GGP). Post-elicitation, metabolites were extracted from coral heads and analyzed via UPLC-MS followed by multivariate data analyses. Both supervised and unsupervised data analyses were used for sample classification. Multivariate data analysis revealed clear segregation of PG-E1 and MeJA elicited S. glaucum at 24 and 48 h post elicitation from other elicitor samples and unelicited control group. PG-E1 was found more effective in upregulating S. glaucum terpene/sterol levels compared to MeJA. Metabolites showing upregulation in S. glaucum include campestene-triol and a cembranoid, detected at ca. 30- and 2-fold higher levels compared to unelicited corals. Such an elicitation effect was less notable in the other coral species L. pauciflorum, suggesting a differential oxylipin response in soft corals. Compared to MeJA and PG, no elicitation effect was observed for GGP, AA or wounding on the metabolism of either coral species.
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15
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Lai KH, You WJ, Lin CC, El-Shazly M, Liao ZJ, Su JH. Anti-Inflammatory Dembranoids from the Soft Coral Lobophytum crassum. Mar Drugs 2017; 15:E327. [PMID: 29065512 DOI: 10.3390/md15100327] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/19/2017] [Accepted: 10/20/2017] [Indexed: 11/17/2022] Open
Abstract
Cembrane-type diterpenoids are among the most frequently encountered natural products from the soft corals of the genus Lobophytum. In the course of our investigation to identify anti-inflammatory constituents from a wild-type soft coral Lobophytum crassum, two new cembranoids, lobophyolide A (1) and B (2), along with five known compounds (3–7), were isolated. The structures of these natural products were identified using NMR and MS spectroscopic analyses. Compound 1 was found to possess the first identified α-epoxylactone group among all cembrane-type diterpenoids. The in vitro anti-inflammatory effect of compounds 1–5 was evaluated. The results showed that compounds 1–5 not only reduced IL-12 release, but also attenuated NO production in LPS-activated dendritic cells. Our data indicated that the isolated series of cembrane-type diterpenoids demonstrated interesting structural features and anti-inflammatory activity which could be further developed into therapeutic entities.
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16
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Farag MA, Fekry MI, Al-Hammady MA, Khalil MN, El-Seedi HR, Meyer A, Porzel A, Westphal H, Wessjohann LA. Cytotoxic Effects of Sarcophyton sp. Soft Corals-Is There a Correlation to Their NMR Fingerprints? Mar Drugs 2017; 15:E211. [PMID: 28677625 PMCID: PMC5532653 DOI: 10.3390/md15070211] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 12/22/2022] Open
Abstract
Sarcophyton sp. soft corals are rich in cembranoid diterpenes, which represent the main chemical defense of corals against their natural predators in addition to their myriad biological effects in humans. Quantitative NMR (qNMR) was applied for assessing the diterpene variation in 16 soft coral specimens in the context of their genotype, origin, and growing habitat. qNMR revealed high diterpene levels in Sarcophyton sp. compared to Sinularia and Lobophyton, with (ent)sarcophines as major components (17-100 µg/mg) of the coral tissues. Multivariate data analysis was employed to classify samples based on the quantified level of diterpenes, and compared to the untargeted NMR approach. Results revealed that qNMR provided a stronger classification model of Sarcophyton sp. than untargeted NMR fingerprinting. Additionally, cytotoxicity of soft coral crude extracts was assessed against androgen-dependent prostate cancer cell lines (PC3) and androgen-independent colon cancer cell lines (HT-29), with IC50 values ranging from 10-60 µg/mL. No obvious correlation between the extracts' IC50 values and their diterpene levels was found using either Spearman or Pearson correlations. This suggests that this type of bioactivity may not be easily predicted by NMR metabolomics in soft corals, or is not strongly correlated to measured diterpene levels.
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Affiliation(s)
- Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini st., P.B. 11562 Cairo, Egypt.
| | - Mostafa I Fekry
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini st., P.B. 11562 Cairo, Egypt.
| | - Montasser A Al-Hammady
- National Institute of Oceanography and Fisheries, Red Sea Branch, 84511 Hurghada, Egypt.
| | - Mohamed N Khalil
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini st., P.B. 11562 Cairo, Egypt.
| | - Hesham R El-Seedi
- Department of Medicinal Chemistry, Division of Pharmacognosy, Uppsala University, Box 574, SE-75 123 Uppsala, Sweden.
- Department of Chemistry, Faculty of Science, El-Menoufia University, 32512 Shebin El-Kom, Egypt.
| | - Achim Meyer
- Leibniz Centre for Tropical Marine Research, Fahrenheit Str.6, D-28359 Bremen, Germany.
| | - Andrea Porzel
- Department Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D06120 Halle (Saale), Germany.
| | - Hildegard Westphal
- Leibniz Centre for Tropical Marine Research, Fahrenheit Str.6, D-28359 Bremen, Germany.
| | - Ludger A Wessjohann
- Department Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D06120 Halle (Saale), Germany.
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17
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Hegazy MF, Elshamy AI, Mohamed TA, Hamed AR, Ibrahim MAA, Ohta S, Paré PW. Cembrene Diterpenoids with Ether Linkages from Sarcophyton ehrenbergi: An Anti-Proliferation and Molecular-Docking Assessment. Mar Drugs 2017; 15:E192. [PMID: 28635645 DOI: 10.3390/md15060192] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Three new cembrene diterpenoids, sarcoehrenbergilid A–C (1–3), along with four known diterpenoids, sarcophine (4), (+)-7α,8β-dihydroxydeepoxysarcophine (5), sinulolide A (6), and sinulolide B (7), and one steroid, sardisterol (8), were isolated and characterized from a solvent extract of the Red Sea soft coral Sarcophyton ehrenbergi. Chemical structures were elucidated by NMR and MS analyses with absolute stereochemistry determined by X-ray analysis. Since these isolated cembrene diterpenes contained 10 or more carbons in a large flexible ring, conformer stabilities were examined based on density functional theory calculations. Anti-proliferative activities for 1–8 were evaluated against three human tumor cell lines of different origins including the: lung (A549), colon (Caco-2), and liver (HepG2). Sardisterol (8) was the most potent of the metabolites isolated with an IC50 of 27.3 µM against the A549 cell line. Since an elevated human-cancer occurrence is associated with an aberrant receptor function for the epidermal growth factor receptor (EGFR), molecular docking studies were used to examine preferential metabolite interactions/binding and probe the mode-of-action for metabolite-anti tumor activity.
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18
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Li W, Zou YH, Ge MX, Lou LL, Xu YS, Ahmed A, Chen YY, Zhang JS, Tang GH, Yin S. Bis cembranoids and Cembranoids from the Soft Coral Sarcophyton elegans. Mar Drugs 2017; 15:E85. [PMID: 28333090 DOI: 10.3390/md15040085] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/16/2017] [Accepted: 03/20/2017] [Indexed: 11/17/2022] Open
Abstract
Two novel biscembranoids, sarelengans A and B (1 and 2), five new cembranoids, sarelengans C–G (3–7), along with two known cembranoids (8 and 9) were isolated from the South China Sea soft coral Sarcophyton elegans. Their structures were determined by spectroscopic and chemical methods, and those of 1, 4, 5, and 6 were confirmed by single crystal X-ray diffraction. Compounds 1 and 2 represent the first example of biscembranoids featuring a trans-fused A/B-ring conjunction between the two cembranoid units. Their unique structures may shed light on an unusual biosynthetic pathway involving a cembranoid-∆8 rather than the normal cembranoid-∆1 unit in the endo-Diels-Alder cycloaddition. Compounds 2 and 3 exhibited potential inhibitory effects on nitric oxide production in RAW 264.7 macrophages, with IC50 values being at 18.2 and 32.5 μM, respectively.
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19
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Tang GH, Sun ZH, Zou YH, Yin S. New Cembrane-Type Diterpenoids from the South China Sea Soft Coral Sarcophyton ehrenbergi. Molecules 2016; 21:E587. [PMID: 27153054 DOI: 10.3390/molecules21050587] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 04/28/2016] [Accepted: 04/30/2016] [Indexed: 11/17/2022] Open
Abstract
Chemical investigation on the soft coral Sarcophytonehrenbergi collected from the Xisha Islands of the South China Sea have led to the isolation of eight cembranoids including five new ones, sarcophytonoxides A–E (1–5). The structures of new cembranoids (1–5) were determined by spectroscopic analysis and comparison of the NMR data with those of related analogues. The cytotoxicities of compounds 1–8 against human ovarian cancer cell line A2780 were also evaluated.
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20
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Abstract
Four new cembranoids, sarcophelegans A–D (1–4) and six known analogues (5–10) were isolated from the South China Sea soft coral Sarcophyton elegans. Their structures were elucidated through detailed spectroscopic analysis, and the absolute configuration of 1 was confirmed by single-crystal X-ray diffraction. The antimigratory potential of compounds 1–10 were evaluated and compounds 2 and 6 were found to inhibit human breast tumor MDA-MB-231 cell migration at 10 μM.
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21
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Wang SK, Hsieh MK, Duh CY. Three new cembranoids from the Taiwanese soft coral Sarcophyton ehrenbergi. Mar Drugs 2012; 10:1433-44. [PMID: 22851917 DOI: 10.3390/md10071433] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Revised: 06/10/2012] [Accepted: 06/16/2012] [Indexed: 11/16/2022] Open
Abstract
In order to search for new bioactive substances from marine organisms, we have investigated the acetone extracts of the soft coral Sarcophyton ehrenbergi collected at San-Hsian-Tai, Taitong County, Taiwan. Chromatographic fractionation of the extracts of the octocoral S. ehrenbergi led to the isolation of three new cembranoids, (+)-12-ethoxycarbonyl-11Z-sarcophine (1), ehrenbergol A and B (2 and 3). The structures of these isolated metabolites were elucidated through extensive spectroscopic analyses. Moreover, metabolites 1-3 were evaluated in vitro for their cytotoxicity towards selected cancer cell lines and antiviral activity against human cytomegalovirus (HCMV).
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22
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Lee NL, Su JH. Tetrahydrofuran cembranoids from the cultured soft coral Lobophytum crassum. Mar Drugs 2011; 9:2526-2536. [PMID: 22363238 PMCID: PMC3280583 DOI: 10.3390/md9122526] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 11/25/2011] [Accepted: 11/28/2011] [Indexed: 11/30/2022] Open
Abstract
Three new cembranoids, culobophylins A-C (1-3), along with two known compounds (4 and 5) were isolated from the cultured soft coral Lobophytum crassum. The structures of these compounds were elucidated on the basis of their spectroscopic data and comparison of the NMR data with those of known analogues. Among these metabolites, 2 is rarely found in cembranoids possessing an isopropyl moiety with an epoxide group. Compound 1 exhibited significant cytotoxic activity against HL60 and DLD-1 cancer cell lines.
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Affiliation(s)
- Nai-Lun Lee
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan;
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan
| | - Jui-Hsin Su
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan;
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan
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Fahmy H, Zjawiony JK, Konoshima T, Tokuda H, Khan S, Khalifa S. Potent Skin Cancer Chemopreventing Activity of Some Novel Semi-synthetic Cembranoids from Marine Sources. Mar Drugs 2006. [PMCID: PMC3705581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the course of our continuing research in development and evaluation of novel skin cancer chemopreventive agents from marine sources, five semi-synthetic cembranoids derived from the marine natural product sarcophine, isolated from the soft coral Sarcophyton glaucum, were synthesized and shown to exhibit a remarkable chemopreventive activity in the in-vitro Epstein Barr Virus Early Antigen (EBV-EA) activation assay. These compounds were assayed in vivo using the two-stage carcinogenesis test of mouse skin tumors induced by 7,12-dimethylbenz[a]anthracene (DMBA) as an initiator, and 12-O-tetradecanoylphorbol-13-acetate (TPA) as a promoter by topical administration. They showed potent inhibition of both percentage incidence of skin tumor as well as the multiplicity of skin tumors per mouse compared to untreated controls.
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Affiliation(s)
- Hesham Fahmy
- Department of Pharmaceutical Sciences, South Dakota State University, Box 2202C, Brookings, SD 57007, USA. Tel.: 605-688-4243, Fax 605-688-5993, E-mail: ,Authors to whom correspondence should be addressed
| | - Jordan K. Zjawiony
- Department of Pharmacognosy and National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA. Tel.: 662-915-7290, Fax: 662-915-6975; E-mail: ,Authors to whom correspondence should be addressed
| | - Takao Konoshima
- Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Harukuni Tokuda
- Department of Molecular Biochemistry, Kyoto Prefectural University of Medicine, Kawaramachidori, Kamigyo-Ku, Kyoto 602-0841, Japan
| | - Shabana Khan
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS 38677-1848, USA
| | - Sherief Khalifa
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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Fahmy H, Khalifa SI, Konoshima T, Zjawiony JK. An Improved Synthesis of 7, 8-Epoxy-1,3,11-cembratriene- 15 R(α), 16-diol, a Cembranoid of Marine Origin with a Potent Cancer Chemopreventive Activity. Mar Drugs 2004. [PMCID: PMC3783876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
An effective method for the synthesis of 7,8-epoxy-1,3,11-cembratriene- 15R(α),16-diol and its in vitro Epstein-Barr Virus Early Antigen (EBV-EA) Activation Chemopreventive Assay are reported. This semisynthetic product is a new cembranoid with a potent tumor inhibitory activity that is expected to be a lead compound for a new class of chemopreventive agents of marine origin.
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Affiliation(s)
- Hesham Fahmy
- Department of Pharmacognosy and National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677-1848, U.S.A. Tel. (662) 915-7290, Fax (662) 915-6975, E-mail:
| | - Sherief I. Khalifa
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt. Tel +20 64-341136, Fax: + 20 64-355741, E-mail:
| | - Takao Konoshima
- Laboratory of Pharmaceutical Sciences of Natural Resources, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan, Tel. +81 75-5954645, Fax +81 75-5832230, E-mail:
| | - Jordan K. Zjawiony
- Department of Pharmacognosy and National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677-1848, U.S.A. Tel. (662) 915-7290, Fax (662) 915-6975, E-mail: ,Author to whom correspondence should be addressed; E-mail:
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