Pinnisterols D-J, new 11-acetoxy-9,11-secosterols with a 1,4-quinone moiety from formosan gorgonian coral Pinnigorgia sp. (Gorgoniidae)

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Abstract

Seven new marine 11-acetoxy-9,11-secosterols, pinnisterols D-J (1-7), with a 1,4-quinone moiety, were discovered from the gorgonian coral Pinnigorgia sp. In this study, the structures of secosterols 1-7 were revealed by spectroscopic analysis. Bioactivity study showed that secosterol 1 treatment inhibited cell viability in a hepatic stellate cell line, HSC-T6, with an IC50 value of 3.93 μM; and secosterols 2, 5, and 7 reduced elastase enzyme release, and 3, 5, and 7 decreased the production of superoxide anions from human neutrophils.

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Chang, Y. C., Hwang, T. L., Kuo, L. M., & Sung, P. J. (2017). Pinnisterols D-J, new 11-acetoxy-9,11-secosterols with a 1,4-quinone moiety from formosan gorgonian coral Pinnigorgia sp. (Gorgoniidae). Marine Drugs, 15(1). https://doi.org/10.3390/md15010011

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