3-(Difluoromethyl)-6-methoxy-2-(trifluoromethoxy)pyridine-5-carboxylic acid
3-(Difluoromethyl)-5-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid
Ethyl 3-methyl-2-nitro-6-(trifluoromethoxy)pyridine-4-acetate
2-(Difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-5-acetic acid