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