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