Methyl 2-amino-4-(difluoromethyl)-5-methoxypyridine-3-carboxylate
Methyl 4-amino-2-(difluoromethyl)-6-methylpyridine-3-acetate
4-Amino-3-(difluoromethyl)-5-methoxypyridine-2-carboxylic acid
3-Amino-5-(bromomethyl)-2-(difluoromethyl)-6-(trifluoromethyl)pyridine