2-(Bromomethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
5-(Difluoromethyl)pyridine-2-carboxylic acid
2-(Bromomethyl)-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-(Bromomethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carbonyl chloride