preferred_name: 3-{[(1S,2R,4aR,6R,8aS)-2-(but-2-en-2-yl)-3,4a,6-trimethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl](hydroxy)methylidene}-5-(2-methylpropyl)-2,3-dihydro-1H-pyrrol-2-one + O2 <=> myceliothermophin E + H2O2