Ethyl 2-amino-6-(difluoromethyl)-5-(trifluoromethyl)pyridine-3-carboxylate
6-(Difluoromethyl)-2-nitro-3-(trifluoromethyl)pyridine-4-sulfonyl chloride
2-(3,4-Dichlorophenyl)-3-methoxypyridine-6-acetic acid
Methyl 5-cyano-2-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate