2,5-Diamino-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine
4,6-Diamino-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine
2,3-Diamino-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-6-acetic acid