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