Mar. Drugs 2011, 9(10), 1955-1968; doi:10.3390/md9101955
Article

Bioactive Cembranoids from the Soft Coral Sinularia crassa

Chih-Hua Chao 1,2 email, Kuei-Ju Chou 1 email, Chiung-Yao Huang 1 email, Zhi-Hong Wen 1,3 email, Chi-Hsin Hsu 1,3 email, Yang-Chang Wu 4 email, Chang-Feng Dai 5 email and Jyh-Horng Sheu 1,3,* email
1 Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan 2 Chinese Medicinal Research and Development Center, China Medical University and Hospital, Taichung 404, Taiwan 3 Asian Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan 4 College of Chinese Medicine, China Medical University, Taichung 404, Taiwan 5 Institute of Oceanography, National Taiwan University, Taipei, Taiwan
* Author to whom correspondence should be addressed.
Received: 18 August 2011; in revised form: 26 September 2011 / Accepted: 9 October 2011 / Published: 17 October 2011
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Abstract: Eight new cembranoids, crassarines A–H (1–8) were isolated from the Formosan soft coral Sinularia crassa. Compounds 1–3 represent the rare cembranoids with a 1,12-oxa-bridged tetrahydrofuran ring, while 4 and 5 are the firstly discovered 1,11-oxa-bridged tetrahydropyranocembranoids. The absolute configuration of 6 was determined using the Mosher’s method. Compounds 6 and 8 were found to significantly inhibit the expression of both pro-inflammatory iNOS and COX-2 proteins at 10 µM, respectively, while compounds 4–8 were found to be non-cytotoxic toward the selected human liver cancer cells.
Keywords: Sinularia crassa; crassarines A–H; anti-inflammatory

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Cite This Article

MDPI and ACS Style

Chao, C.-H.; Chou, K.-J.; Huang, C.-Y.; Wen, Z.-H.; Hsu, C.-H.; Wu, Y.-C.; Dai, C.-F.; Sheu, J.-H. Bioactive Cembranoids from the Soft Coral Sinularia crassa. Mar. Drugs 2011, 9, 1955-1968.

AMA Style

Chao C-H, Chou K-J, Huang C-Y, Wen Z-H, Hsu C-H, Wu Y-C, Dai C-F, Sheu J-H. Bioactive Cembranoids from the Soft Coral Sinularia crassa. Marine Drugs. 2011; 9(10):1955-1968.

Chicago/Turabian Style

Chao, Chih-Hua; Chou, Kuei-Ju; Huang, Chiung-Yao; Wen, Zhi-Hong; Hsu, Chi-Hsin; Wu, Yang-Chang; Dai, Chang-Feng; Sheu, Jyh-Horng. 2011. "Bioactive Cembranoids from the Soft Coral Sinularia crassa." Mar. Drugs 9, no. 10: 1955-1968.

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