2-Amino-4-(difluoromethyl)-6-methoxy-3-nitropyridine
6-Amino-2-(difluoromethyl)-3-fluoro-4-nitropyridine
2-Amino-6-(chloromethyl)-4-(difluoromethyl)-3-methoxypyridine
2-Amino-4-(difluoromethyl)-3-methoxy-6-nitropyridine
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