3-Amino-2-(bromomethyl)-5-(difluoromethyl)pyridine-6-carboxylic acid
3-(Chloromethyl)-5-methyl-2-(trifluoromethoxy)pyridine
2,6-Dichloro-3-(difluoromethyl)pyridine-4-carboxylic acid
4-Amino-2-(chloromethyl)-6-(trifluoromethoxy)pyridine-3-carboxaldehyde