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