3-Chloro-2-nitro-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-(Aminomethyl)-3-chloro-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine
4-(Aminomethyl)-2-chloro-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine
5-(Aminomethyl)-3-chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine