2-Amino-4-(difluoromethyl)-3-iodo-5-methoxypyridine
5-Amino-2-(aminomethyl)-4-(difluoromethyl)-3-nitropyridine
2-Amino-3-(difluoromethyl)-5-iodo-6-methoxypyridine
2-Amino-5-(aminomethyl)-3-(difluoromethyl)-6-nitropyridine
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