Abstract
A new triterpenoid (1) derived from 24-methylcycloartanol was isolated from the leaves of Oxandra cf. xylopioides. An unusual structure of the new compound was assigned as 1, for which the name berenjenol is proposed, on the basis of the spectroscopic data of the natural product and of its derivatives 2 and 3. The leaves also afforded the known monoterpene isoespintanol (4). Compounds 1 and 4 significantly reduced the paw edema induced by carrageenan by 64% and 43%, at 3 h, respectively. Moreover, 4 reduced IL-1 beta production by 72% at 100 microM and reduced IL-1 beta mRNA synthesis.
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