ethyl 2-(dicyanomethylidene)cyclohexane-1-carboxylate

2-hydroxyiminocyclohexan-1-one

ethyl 2-oxo-1-propan-2-ylcyclohexane-1-carboxylate

diethyl 2-oxocyclohexane-1,1-dicarboxylate

4,5,6,7-四氢-1,2-苯并恶唑-3-醇