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