3-Amino-5-(difluoromethyl)-2-methoxy-6-nitropyridine
4-Amino-3-(difluoromethyl)-6-nitropyridine-2-sulfonyl chloride
Methyl 3-chloro-5-(difluoromethyl)-4-fluoropyridine-2-carboxylate
Methyl 4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-carboxylate
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