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