Methyl 3-amino-5-(difluoromethyl)-2-methoxypyridine-6-acetate
Ethyl 3-amino-6-(difluoromethyl)-4-methoxypyridine-2-carboxylate
Ethyl 4-amino-2-(difluoromethyl)-3-methoxypyridine-5-carboxylate
3-Amino-6-(difluoromethyl)-2-methoxypyridine-4-acetic acid