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