2-(2,5-Difluorobenzoyl)-5-(1,3-dioxolan-2-yl)thiophene

2,2-Dimethylpropyl 2-pyridyl ketone

2,4,4-Trimethylpentyl 2-pyridyl ketone

2-(2-Fluorobenzoyl)pyridine

2-(4-tert-Butylbenzoyl)pyridine

2-(4-Heptylbenzoyl)pyridine

2-(2,4-Dichlorobenzoyl)pyridine

2-(2,3-Dimethylbenzoyl)pyridine

2-Butyryloxazole

2-Cycloheptanoyloxazole

2-(3-Cyclohexylpropionyl)oxazole