2-Amino-5-nitropyridine → Methyl 3-methyl-6-nitroimidazo[1,2-a]pyridine-2-carboxylate
Reaktionsgleichung
Br[CH:2]([CH3:9])[C:3](=O)[C:4]([O:6][CH3:7])=[O:5].[NH2:10][C:11]1[CH:16]=[CH:15][C:14]([N+:17]([O-:19])=[O:18])=[CH:13][N:12]=1>C(OCC)(=O)C>[CH3:9][C:2]1[N:12]2[CH:13]=[C:14]([N+:17]([O-:19])=[O:18])[CH:15]=[CH:16][C:11]2=[N:10][C:3]=1[C:4]([O:6][CH3:7])=[O:5]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Operations similar to Production Example 1-(2) were conducted using methyl 3-bromo-2-oxobutanoate and 2-amino-5-nitropyridine. The resulting solid was suspended in ethyl acetate, washed with saturated aqueous sodium hydrogencarbonate solution and purified by silica gel column chromatography (hexane/ethyl acetate=2/1) to provide the title compound as yellow crystals.