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