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