6-Chloro-3-(difluoromethyl)-2-hydroxy-4-nitropyridine
2-Chloro-4-(difluoromethyl)-6-hydroxy-3-nitropyridine
3-(Bromomethyl)-2-chloro-4-(difluoromethyl)-6-hydroxypyridine
4-(Aminomethyl)-3-chloro-6-(difluoromethyl)-2-hydroxypyridine
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