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6-aminonicotinic acid
sulfuric acid
diazomethyl-trimethyl-silane
methanol
N-(5-methylpyridin-2-yl)acetamide
6-acetamide-nicotinic acid methyl ester
methyl 6-imidazo<1,2-a>pyridinecarboxylate
3-acetoxy-2-methyl-4-oxo-4H-pyrido<1,2-a>pyrimidine-7-carboxylic acid
6-[(Z)-Toluene-4-sulfonylimino]-1,6-dihydro-pyridine-3-carboxylic acid methyl ester
methyl 6-<(tert-butyloxycarbonyl)amino>nicotinoate