2-Amino-5-(difluoromethyl)-3-methylpyridine-4-carboxylic acid
Ethyl 5-amino-4-(difluoromethyl)-3-methylpyridine-2-carboxylate
6-Amino-4-(difluoromethyl)-3-methylpyridine-2-carboxylic acid
Ethyl 3-amino-4-(difluoromethyl)-6-methylpyridine-2-carboxylate