New fasciculol-type triterpene compounds 1, 2 and 3 were discovered in extr
acts of the mushroom Hypholoma fasciculare by LC-NMR and LC-MS methods. Iso
lation and structure elucidation are reported. Fasciculol and fasciculic ac
id production of H. fasciculare was compared with that of H. sublateritium
and H. capnoides. 1 and 2 inhibited moderately 3 alpha-hydroxysteroid dehyd
rogenase (IC50: 14.0 mu M).