3,3-Dimethyl-4-(morpholin-4-ylcarbonyl)cyclopentanon

5,5-dimethyl-3-morpholin-4-ylcyclohex-2-en-1-one

4,4-Dimethyl-3-(morpholin-4-ylcarbonyl)cyclopent-2-en-1-on

4,4-二甲基-2-环戊烯-1-酮

5,5-dimethyl-3-oxo-cyclopent-1-enecarboxylic acid