Methyl 2-methoxy-4-nitro-5-(trifluoromethoxy)pyridine-3-carboxylate
2-(Difluoromethyl)-3-iodo-4-(trifluoromethoxy)pyridine-5-carboxylic acid
Methyl 2-methoxy-3-nitro-6-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 6-(difluoromethyl)-2-iodo-4-(trifluoromethoxy)pyridine-3-carboxylate