4-(3-Methylpyridin-4-yl)benzoic acid

4-(3-Methylpyridin-4-yl)benzaldehyde

4-(2-Methylpyridin-4-yl)benzaldehyde

4-(4-Formyl-phenyl)-nicotinic acid methyl ester

4-(2-(Methoxycarbonyl)pyridin-4-yl)benzaldehyde