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
3-(Difluoromethyl)pyridine-5-carboxylic acid