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