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