6-Amino-2-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine
4-Amino-2-nitro-6-(trifluoromethoxy)pyridine-3-methanol
2-Amino-6-(difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine
2-Amino-5-(difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine