3-Methyl-6-nitro-2-(trifluoromethoxy)pyridine-5-sulfonamide
2-(Bromomethyl)-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxylic acid
2-Methyl-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-(Bromomethyl)-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-carboxylic acid