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Official Journal of the Japan Wood Research Society

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Chemical constituents ofInonotus obliquus II: a new triterpene, 21,24-cyclopentalanosta-3β,21,25-triol-8-ene from sclerotium


A new lanostane-type triterpene with a cyclopentanol partial structure in the side chain was isolated from the sclerotium of the wood rotting fungusInonotus obliquus along with four known compounds: lanosterol, inotodiol, trametenolic acid, and 3β-hydroxy-8,24-dienlanosta-21,23-lactone. The new compound was determined to be 21,24-cyclopentalanosta-3β,21,25-triol-8-ene by spectroscopic analyses.


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Correspondence to Yusoo Shin.

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Shin, Y., Tamai, Y. & Terazawa, M. Chemical constituents ofInonotus obliquus II: a new triterpene, 21,24-cyclopentalanosta-3β,21,25-triol-8-ene from sclerotium. J Wood Sci 47, 313–316 (2001).

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