alkaloids and sesquiterpenes from the south china sea gorgonian echinogorgia pseudossapo生物碱和倍半萜烯南海柳珊瑚echinogorgia pseudossapo.pdfVIP

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alkaloids and sesquiterpenes from the south china sea gorgonian echinogorgia pseudossapo生物碱和倍半萜烯南海柳珊瑚echinogorgia pseudossapo.pdf

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alkaloids and sesquiterpenes from the south china sea gorgonian echinogorgia pseudossapo生物碱和倍半萜烯南海柳珊瑚echinogorgia pseudossapo

Mar. Drugs 2011, 9, 2479-2487; doi:10.3390/md9112479 OPEN ACCESS Marine Drugs ISSN 1660-3397 /journal/marinedrugs Article Alkaloids and Sesquiterpenes from the South China Sea Gorgonian Echinogorgia pseudossapo Cheng-Hai Gao 1, Yi-Fei Wang 2, Shen Li 2, Pei-Yuan Qian 3 and Shu-Hua Qi 1,* 1 Key Laboratory of Marine Bio-resources Sustainable Utilization, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, The Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China; E-Mail: gaochenghai@ 2 Guangzhou Jinan Biomedicine Research and Development Center, Guangzhou 510632, China; E-Mails: twangyf@ (Y.-F.W.); bghaishen@ (S.L.) 3 Department of Biology, Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China; E-Mail: boqianpy@ust.hk * Author to whom correspondence should be addressed; E-Mail: shuhuaqi2001@; Tel.: +86-20-8902-2112; Fax: +86-20-8445-8964. Received: 13 October 2011; in revised form: 14 November 2011 / Accepted: 15 November 2011 / Published: 24 November 2011 Abstract: Five zoanthoxanthin alkaloids (1–5) and four sesquiterpenes (6–9) were isolated from the South China Sea gorgonian Echinogorgia pseudossapo . Their structures were determined on the bases of extensive spectroscopic analyses, including 1D and 2D NMR data. Among them, pseudozoanthoxanthins III and IV (1–2), 8-hydroxy-6β-methoxy-14- oxooplop-6,12-olide (6) and 3β-methoxyguaian-10(14)-en-2β-ol (7) were new, 1 and 3 showed