Ethyl 2-(aminomethyl)-4-(difluoromethyl)-6-methylpyridine-3-acetate
Ethyl 6-(aminomethyl)-4-(difluoromethyl)-3-methylpyridine-2-acetate
Ethyl 2-(aminomethyl)-4-(difluoromethyl)-5-methylpyridine-3-acetate
Ethyl 2-(aminomethyl)-4-(difluoromethyl)-3-methylpyridine-6-acetate