3-(Difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine-5-carboxylic acid
Methyl 2-methoxy-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-acetate
5-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxylic acid
Methyl 2-methoxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-acetate