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