Methyl 4-(aminomethyl)-2-(difluoromethyl)-5-methoxypyridine-3-acetate
Methyl 4-(aminomethyl)-2-(difluoromethyl)-3-methoxypyridine-6-acetate
Methyl 4-(aminomethyl)-2-(difluoromethyl)-3-methoxypyridine-5-acetate
Methyl 5-(aminomethyl)-3-(difluoromethyl)-2-methoxypyridine-4-acetate