(+)-10α-Hydroxy-4-muurolen-3-one, a New Inhibitor of Leukotriene Biosynthesis from a Favolaschia Species. Comparison with Other Sesquiterpenes

Abstract
A new inhibitor of leukotriene biosynthesis, (+)-10α-hydroxy-4-muurolen-3-one (1), was isolated from fermentations of Favolaschia sp. 87129. Its structure was established by spectroscopic methods. The compound exhibited no antifungal or antibacterial activities. The effects of 1 on leukotriene biosynthesis were compared with (+)-T-cadinol, (-)-3-oxo-T-cadinol, and (+)-3a-hydroxy-T-cadinol, three related sesquiterpenes.

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