Synthesis of potential anticancer agents: imidazo[4,5-c]pyridines and imidazo[4,5-b]pyridines
作者:Carroll Temple、Jerry D. Rose、Robert N. Comber、Gregory A. Rener
DOI:10.1021/jm00393a011
日期:1987.10
antitumor activity in mice. Also, the active imidazo[4,5-b]pyridine 3 was shown to cause the accumulation of cells at mitosis. Routes were developed for the synthesis of congeners of 3 by cyclization of 4-(substituted amino)-5,6-diaminopyridines with ethyl orthoformate. Oxidative cyclization of either 4,5- or 5,6-diaminopyridines with aryl aldehydes produced the [4,5-c] and [4,5-b] imidazopyridine ring systems