6-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-4-carboxylic acid
Methyl 3-(difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine-4-carboxylate
2-(Difluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Methyl-3-nitro-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride