莫能菌素

2-[5-Ethyltetrahydro-5-[Tetrahydro-3-Methyl-5-[Tetrahydro-6-Hydroxy-6-(Hydroxymethyl)-3,5-Dimethyl-2H-Pyran-2-Yl]-2-Furyl]-2-Furyl]-9-Hydroxy-Beta-Methoxy-Alpha,Gamma,2,8-Tetramethyl-1,6-Dioxaspiro[4.5]Decane-7-Butyric Acid