2-Cyano-4-nitro-3-(trifluoromethoxy)pyridine-5-acetic acid
4-Bromo-3-(difluoromethyl)-5-hydroxypyridine-2-sulfonyl chloride
4-Amino-3-(bromomethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
Ethyl 3-amino-5-bromo-2-(difluoromethyl)pyridine-4-carboxylate