Ethyl 3,4-diamino-2-(difluoromethyl)pyridine-6-carboxylate
Ethyl 2,6-diamino-3-(difluoromethyl)pyridine-5-carboxylate
2,3-Diamino-6-(difluoromethyl)-5-nitropyridine
2,3-Diamino-5-(difluoromethyl)-4-nitropyridine
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