3-methyl-5-prop-1-en-2-ylcyclohex-2-en-1-one

2-Ethyl-3-methyl-5-(2-oxopropyl)-2-cyclopenten-1-on

2,3-Dimethyl-5-(2-oxopropyl)-2-cyclopenten-1-on

4-Propionyl-2,6-heptandion

4-Butyryl-2,6-heptandion