2,4-Difluoro-3-(trifluoromethoxy)pyridine-5-acetic acid
6-(Difluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-2-acetic acid
3-(Chloromethyl)-4-iodo-5-(trifluoromethoxy)pyridine
2,3-Difluoro-5-(trifluoromethoxy)pyridine-6-acetic acid
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