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