Snyderol derivatives from Laurencia obtusa collected in Corsica |
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| Institution: | 1. Université de Corse - CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, 20000, Ajaccio, France;2. Neuchâtel Platform of Analytical Chemistry, University of Neuchâtel, Avenue de Bellevaux 51, 2000, Neuchâtel, Switzerland;1. School of Pharmacy, Kumamoto University, 5-1 Oe-honmachi, Chuo ku, Kumamoto, 862-0973, Japan;2. Program for Leading Graduate Schools, Health Life Science: Interdisciplinary and Glocal Oriented (HIGO) Program, Kumamoto University, Kumamoto, Japan;1. Key Laboratory of Marine Biogenetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen, 361005, China;2. Yanjing Medical College, Capital Medical University, 4 Dadong Road, Beijing, 101300, China;1. College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China;2. College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China;3. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China;1. State Key Laboratory of Innovative Drugs and High Efficiency Energy Saving and Consumption Reduction Pharmaceutical Equipment, Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Key Laboratory of Modern Preparation of TCM of Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China;2. College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, China |
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| Abstract: | 8-keto-10-dehydrobromo-γ-snyderol (1), a new sesquiterpene exhibiting the unusual γ-snyderane skeleton, was isolated from the ethyl acetate extract of Laurencia obtusa collected in Ajaccio (Corsica, France). (1) was isolated and fully characterized by detailed spectroscopic analysis. Six known compounds were identified after column chromatography steps using a 13C NMR based computerized method developed in our laboratory: α-snyderol (2), two rearranged derivatives of α-snyderol (3,4), 8-keto-10-dehydrobromo-β-snyderol (5), β-snyderol (6) and 8-hydroxy-β-snyderol (7). |
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| Keywords: | NMR Sesquiterpene γ-snyderol |
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