4-(Chloromethyl)-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-sulfonyl chloride
5-(Chloromethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-sulfonyl chloride
4-(Aminomethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylic acid
3-(Chloromethyl)-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-sulfonyl chloride