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