Ethyl 2-amino-4-(difluoromethyl)-3-nitropyridine-5-carboxylate
4-Amino-5-(difluoromethyl)-3-methylpyridine-2-carboxaldehyde
5-Amino-3-(difluoromethyl)-4-methylpyridine-2-carboxaldehyde
3-Amino-5-(difluoromethyl)-2-methylpyridine-4-carboxaldehyde
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