1-(2-pyridyl)hexan-1,5-dione

(4-Cyclohexyl)butyl 2-pyridyl ketone

2-(4-Methylbenzoyl)pyridine

2-(4-Trifluoromethylbenzoyl)pyridine

2-(4-iso-Propylbenzoyl)pyridine

2-(4-Pentylbenzoyl)pyridine

2-(2,4-Dimethoxybenzoyl)pyridine

2-(2,5-Dimethylbenzoyl)pyridine

2-Octanoyloxazole

2-Cyclobutanoyloxazole

2-(3-Methylvaleryl)oxazole