4-(Bromomethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-carboxylic acid
3-(Bromomethyl)-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-acetic acid
5-Bromo-2-(difluoromethyl)pyridine-4-sulfonyl chloride
4-(Bromomethyl)-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylic acid