Methyl 5-amino-3-(difluoromethyl)-4-methoxypyridine-2-acetate
Methyl 5-amino-4-(difluoromethyl)-3-methoxypyridine-2-acetate
Methyl 3-amino-2-(difluoromethyl)-5-methoxypyridine-6-acetate
5-Amino-4-(aminomethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine