3-Bromo-2,5-difluoro-6-(trifluoromethoxy)pyridine
6-Bromo-2,4-difluoro-3-(trifluoromethoxy)pyridine
3,6-Dimethoxy-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2,5-Dimethoxy-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
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