English: Chemical structure of cyclophellitol ((1S,2R,3S,4R,5R,6R)-5-(hydroxymethyl)-7-oxabicyclo[4.1.0]heptane-2,3,4-triol), an irreversible inhibitor of beta-glucosidases, which is produced by the Phellinus mushroom. Created with ChemDraw Prime 16.0.1.4.