5-Cyano-2-(difluoromethyl)-3-methoxy-6-nitropyridine
Methyl 2-cyano-4-(difluoromethyl)-3-hydroxypyridine-6-carboxylate
4-(Bromomethyl)-6-cyano-3-(difluoromethyl)-2-nitropyridine
5-(Bromomethyl)-2-cyano-3-(difluoromethyl)-4-methoxypyridine
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