6-(2,6-Dichlorophenyl)-5-methoxypicolinaldehyde
4-(3-Hydroxy-4-nitrobenzoyl)pyridine
3-(Fluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine-4-carboxylic acid
4-(2-Hydroxy-5-nitrobenzoyl)pyridine
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