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