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