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