3-Amino-2-(difluoromethyl)-5-nitro-4-(trifluoromethyl)pyridine
3-Amino-6-(bromomethyl)-2-(difluoromethyl)pyridine-5-carboxylic acid
Ethyl 5-amino-3-(bromomethyl)-2-(difluoromethyl)pyridine-4-carboxylate
4-Amino-3-(bromomethyl)-6-(difluoromethyl)pyridine-2-carboxylic acid