5-(Difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Hydroxy-6-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-(Difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Iodo-5-methoxy-6-methyl-3-(trifluoromethoxy)pyridine