3-Amino-2-(difluoromethyl)-5-methyl-6-(trifluoromethyl)pyridine
6-Amino-2-(difluoromethyl)-4-methyl-3-(trifluoromethyl)pyridine
6-Amino-3-(difluoromethyl)-4-methyl-2-(trifluoromethyl)pyridine
2-Amino-3-(aminomethyl)-6-(difluoromethyl)pyridine-4-acetic acid