t-Butyl 2-pyridyl ketone

2-(2-Chlorobenzoyl)pyridine

2-(2-Iodobenzoyl)pyridine

2-(4-Ethylbenzoyl)pyridine

2-(2,5-Difluorobenzoyl)pyridine

2-(2,3-Dimethoxybenzoyl)pyridine

2-Valeryloxazole

2-(5-Chlorovaleryl)oxazole

2-(4-Cyclohexylbutyryl)oxazole

2-(3,3-Dimethylbutyryl)oxazole

2-(2-Trifluoromethylbenzoyl)oxazole