Methyl 2-methyl-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-(difluoromethyl)-4-methyl-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-(difluoromethyl)-3-methyl-6-(trifluoromethoxy)pyridine-4-carboxylate