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Molecules 2008, 13(11), 2894-2899; doi:10.3390/molecules13112894

Halogenated Terpenes and a C15-Acetogenin from the Marine Red Alga Laurencia saitoi

1,* , 2
1 Yantai Institute of Coastal Zone Research for Sustainable Development, Chinese Academy of Sciences, Yantai 264003, P. R. China 2 Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, P. R. China
* Author to whom correspondence should be addressed.
Received: 27 October 2008 / Revised: 17 November 2008 / Accepted: 19 November 2008 / Published: 20 November 2008
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Seven parguerane diterpenes: 15-bromo-2,7,19-triacetoxyparguer-9(11)-en-16-ol (1), 15-bromo-2,7,16,19-tetraacetoxyparguer-9(11)-ene (2), 15-bromo-2,19-diacetoxyparguer-9(11)-en-7,16-diol (3), 15-bromo-2,16,19-triacetoxyparguer-9(11)-en-7-ol (4), 15-bromo-2,16-diacetoxyparguer-9(11)-en-7-ol (5), 15-bromoparguer-9(11)-en-16-ol (6), 15-bromoparguer-7-en-16-ol (7), two polyether triterpenes: thyrsiferol (8) and thyrsiferyl 23-acetate (9), and one C15-acetogenin, neolaurallene (10), were isolated from a sample of marine red alga Laurencia saitoi collected off the coast of Yantai. Their structures were established by detailed NMR spectroscopic analysis and comparison with literature data.
Keywords: Laurencia saitoi; Diterpene; Triterpene; C15-acetogenin Laurencia saitoi; Diterpene; Triterpene; C15-acetogenin
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Ji, N.-Y.; Li, X.-M.; Wang, B.-G. Halogenated Terpenes and a C15-Acetogenin from the Marine Red Alga Laurencia saitoi. Molecules 2008, 13, 2894-2899.

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