3,4-Difluoro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
2-Amino-4-bromo-5-fluoro-3-(trifluoromethoxy)pyridine
2,3-Dimethoxy-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2,6-Difluoro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
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