gave 2-t-butoxycarbonylamino-1-methyl-1,5-dihydro-4H-imidazol-4-one, which was oxidized with mercury(II) acetate to the corresponding 1H-imidazole-4,5-dione. Deprotection of the amino group of this dione afforded the title compound 4, which in turn was shown to undergo a facile, Dimroth-type rearrangement under weakly acidic conditions to give creatone, thus proving 4 to be the key intermediate in
用 BOC-ON 处理
肌酐得到 2-t-butoxycarbonylamino-1-methyl-1,5-dihydro-4H-imidazol-4-one,用
乙酸汞 (II) 将其氧化为相应的 1H-imidazole-4, 5-二酮。对该二酮的
氨基进行脱保护得到标题化合物 4,该化合物在弱酸性条件下进行了简单的 Dimroth 型重排,得到
肌酸,从而证明 4 是形成
肌酸的关键中间体各种起始材料。讨论了这些化合物之间的平衡。