Methyl 2,4-dimethyl-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 3,4-dimethoxy-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 2,4-dimethyl-5-(trifluoromethoxy)pyridine-3-acetate
Methyl 2,6-dimethoxy-3-(trifluoromethoxy)pyridine-5-acetate
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