2-Amino-6-(difluoromethyl)-5-methoxy-3-nitropyridine
4-Amino-6-(bromomethyl)-3-(difluoromethyl)-2-methoxypyridine
4-Amino-2-(bromomethyl)-6-(difluoromethyl)-3-methoxypyridine
4-Amino-6-(difluoromethyl)-2-methoxy-3-nitropyridine
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