4-hydroxy-4-methyloctan-2-one

8-butyl-1,8-dimethyl-2,6-dioxobicyclo<2.2.2>octane-3,5-dione

8-butyl-2,6-diaza-1,8-dimethylbicyclo<2.2.2>octane-3,5-dione

(3E)-4-methyl-3-octen-2-one

diethyl 1-methyl-1-(2,2-(ethylenedithio)propyl)pentylmalonate