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