Methyl 2-(bromomethyl)-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-carboxylate
3-(Bromomethyl)-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-carboxylic acid
Methyl 4-bromo-2-(difluoromethyl)pyridine-6-carboxylate
5-(Bromomethyl)-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxylic acid