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