Methyl 4-amino-2-(difluoromethyl)-3-methylpyridine-5-carboxylate
Methyl 4-amino-2-(difluoromethyl)-3-methylpyridine-6-carboxylate
5-Amino-3-(difluoromethyl)-2-methylpyridine-4-acetonitrile
Methyl 5-amino-3-(difluoromethyl)-4-methylpyridine-2-carboxylate