5-Amino-3-(difluoromethyl)-4-fluoro-2-(trifluoromethyl)pyridine
3-Amino-5-(difluoromethyl)-2-fluoro-4-(trifluoromethyl)pyridine
Methyl 5-amino-4-bromo-2-(difluoromethyl)pyridine-3-acetate
5-Amino-4-(difluoromethyl)-3-fluoro-2-(trifluoromethyl)pyridine