Antifouling briarane type diterpenoids from South China Sea gorgonians Dichotella gemmacea
AuthorsSun, Jian Fan
Zhou, Xue Feng
Yang, Xian Wen
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AbstractOur continued investigation on the South China Sea gorgonian Dichotella gemmacea led to the isolation of 16 new briarane-type diterpenoids, dichotellides F-U (1-16), along with 18 known analogues (17-34). Their structures were determined by MS, 1D and 2D NMR spectra analyses and by comparison with those reported in literature. The absolute configuration of 15 was confirmed by single-crystal X-ray diffraction data. The antifouling test showed that compounds 3, 4, 6-11, 16, and 23 had potent antifouling activities at nontoxic concentrations with EC50 values of 4.1, 1.82, 6.3, 7.6, 4.6, 1.2, 5.6, 0.79, 2.0, and 0.2 μg/mL, respectively. © 2012 Elsevier Ltd. All rights reserved.
CitationSun J-F, Han Z, Zhou X-F, Yang B, Lin X, et al. (2013) Antifouling briarane type diterpenoids from South China Sea gorgonians Dichotella gemmacea. Tetrahedron 69: 871–880. Available: http://dx.doi.org/10.1016/j.tet.2012.10.102.
SponsorsThis study was supported by the National Basic Research Program of China (973 Program, Nos. 2010CB833800 and 2011CB915503), the National High Technology Research and Development Program (863 Program, 2012AA092104), Knowledge Innovation Program of Chinese Academy of Science (KSCX2-YW-G-073 and KSCX2-EW-G-12B), and National Natural Science Foundation of China (Nos. 30973679, 20902094, 21172230, 41176148, 21002110).Guangdong Province-CAS Joint Research Program (2011B0 90300023), Guangdong Province Marine and Fishery Special Project for Science and Technology Popularization (A201101F03), the start-up grant from Jiangsu University (11JDG1147).