Ethyl 3,4-dimethoxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2,6-dimethoxy-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 3,6-dimethoxy-2-(trifluoromethoxy)pyridine-4-carboxylate
2,3-Difluoro-4-(trifluoromethoxy)pyridine-6-acetic acid
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