3-(Difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Ethyl 2-methoxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-acetate
Ethyl 2-methyl-3-nitro-5-(trifluoromethoxy)pyridine-6-acetate
Ethyl 2-(aminomethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetate