5-Bromo-2,4-dihydroxy-3-(trifluoromethoxy)pyridine
3-Amino-2,5-difluoro-6-(trifluoromethoxy)pyridine
2,3-Dichloro-6-methoxy-4-(trifluoromethoxy)pyridine
6-Amino-2,4-difluoro-3-(trifluoromethoxy)pyridine
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