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