3-(Chloromethyl)-2-(difluoromethyl)-5-(trifluoromethyl)pyridine-4-sulfonyl chloride
5-(Bromomethyl)-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxylic acid
4-(3-Amino-4-hydroxybenzoyl)pyridine
4-(Chloromethyl)-2-(difluoromethyl)pyridine-5-carbonyl chloride