3-(Difluoromethyl)-5-nitro-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
3-(Difluoromethyl)-6-nitropyridine-2-carboxylic acid
4-(Difluoromethyl)-6-nitro-3-(trifluoromethyl)pyridine-2-sulfonyl chloride
Methyl 2-(fluoromethyl)-6-methyl-3-(trifluoromethoxy)pyridine-4-carboxylate