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