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