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