3-(Difluoromethyl)-2-nitro-6-(trifluoromethoxy)pyridine-4-carboxylic acid
6-(Difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine-2-methanol
6-Methoxy-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-acetic acid
5-(Aminomethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine