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. 2007 Jul;70(7):1114-7.
doi: 10.1021/np070069l. Epub 2007 Jun 30.

Stellettins L and M, cytotoxic isomalabaricane-type triterpenes, and sterols from the marine sponge Stelletta tenuis

Hou-wen Lin  1 , Zeng-lei Wang, Jiu-hong Wu, Ning Shi, Hong-jun Zhang, Wan-sheng Chen, Susan L Morris-Natschke, An-Shen Lin
Affiliations

Stellettins L and M, cytotoxic isomalabaricane-type triterpenes, and sterols from the marine sponge Stelletta tenuis

Hou-wen Lin et al. J Nat Prod. 2007 Jul.

Abstract

Two new isomalabaricane-type triterpenes, stellettins L (1) and M (2), and three new sterols (3-5) were isolated from the marine sponge Stelletta tenuis collected in the South China Sea. Chemical structures were established from spectroscopic data and comparison with known compounds. In addition, spectroscopic data reported for the known sterol 24-methylene-27-methylcholest-5-en-3beta-ol-7-one (6) were revised. Compounds 1 and 2 exhibited significant cytotoxic activity against stomach cancer (AGS) in vitro.

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