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