4-Cyano-2-(difluoromethyl)-6-nitropyridine
2-(Aminomethyl)-3,4-diamino-5-(difluoromethyl)pyridine
3-(Aminomethyl)-4-(difluoromethyl)-5-nitropyridine
5-Cyano-3-(difluoromethyl)-2-nitropyridine
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