Aromadendrane and cyclofarnesane sesquiterpenoids from cultures of the basidiomycete Inonotus sp. BCC 23706.

Twelve aromadendrane sesquiterpenoids, inonotins A–L, and a previously unknown cyclofarnesane, i.e., inonofarnesane, together with two known compounds, were isolated from cultures of the wood-rotting basidiomycete Inonotus sp. BCC 23706. Inonotin I is identical to a previously reported compound with an incorrect structure. Structures of the compounds were elucidated by spectroscopic analysis and X-ray crystallography. The absolute configurations of inonotin D and inonofarnesane were determined by application of the modified Mosher’s method. [ABSTRACT FROM AUTHOR]