Ethyl 4-amino-2-(aminomethyl)-5-(difluoromethyl)pyridine-3-carboxylate
5-Amino-3-(difluoromethyl)-2-methyl-4-(trifluoromethyl)pyridine
Ethyl 5-amino-3-(aminomethyl)-2-(difluoromethyl)pyridine-4-carboxylate
2-Amino-4-(difluoromethyl)-3-methyl-5-(trifluoromethyl)pyridine