Halogenated chamigrane sesquiterpenes from Laurencia okamurae |
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Authors: | Xiao‐Dong Li Wei Ding Feng‐Ping Miao Nai‐Yun Ji |
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Affiliation: | 1. Gansu Agricultural University, , Lanzhou, 730070 China;2. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, , Yantai, 264003 China |
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Abstract: | Three new halogenated chamigrane sesquiterpenes, laurokamin A (1), laurokamin B (2), and laurokamin C (3), and four known halogenated chamigrane sesquiterpenes, 10‐bromo‐α‐chamigrene (4), 10‐bromo‐β‐chamigrene (5), 2,10‐dibromo‐3‐chloro‐β‐chamigrene (6), and obtusane (7), were isolated from the marine red alga Laurencia okamurae collected from the coast of Rongcheng, China. The structures of these compounds were unambiguously identified by one‐ and two‐dimensional NMR and mass spectroscopic methods. The antimicrobial activity of compounds 1–3 was evaluated. Copyright © 2012 John Wiley & Sons, Ltd. |
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Keywords: | NMR 1H NMR 13C NMR two‐dimensional NMR laurokamin A laurokamin B laurokamin C Laurencia okamurae |
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