4,5-Difluoro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3,6-Diamino-2-methyl-5-(trifluoromethoxy)pyridine
2,6-Difluoro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4,6-Diamino-2-methyl-3-(trifluoromethoxy)pyridine
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