Nucleophilic substitution studies on nitroimidazoles, and applications to the synthesis of biologically active compounds
作者:Gérard Chauvière、Cécile Viodé、Jacques Périé
DOI:10.1002/jhet.5570370120
日期:2000.1
The rationalization of the synthesis of substituted analogs of megazol, a biologicallyactive 5-nitroimidazole at position 4 of the imidazole ring, had led to the study of intermediate steps. The methylation by diazomethane of 2,4-(5)dihalogeno-5-(4)nitroimidazole is regioselective leading to 2,4-dihalogeno-1-methyl-5-nitroimidazole 2. On this compound 2, hard nucleophiles such as cyanide, methoxide