6-Bromo-4-chloro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Bromo-4-nitro-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
5-(Difluoromethyl)-4-methoxy-3-nitropyridine-2-sulfonyl chloride
3-Cyano-5-(difluoromethyl)-2-hydroxypyridine-6-methanol
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