5-(Bromomethyl)-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxylic acid
3-(Difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine-2-carbonyl chloride
5-(Difluoromethyl)-4-nitro-3-(trifluoromethoxy)pyridine-2-carbonyl chloride
5-(Difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-3-carbonyl chloride