2-Amino-5-fluoro-4-nitropyridine
3-Amino-5-cyano-2-(difluoromethyl)-6-iodopyridine
2-Bromo-4-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-(Difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
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