Viomycin. Part II. The structure of the chromophore
作者:B. W. Bycroft、D. Cameron、L. R. Croft、A. Hassanali-Walji、A. W. Johnson、T. Webb
DOI:10.1039/p19720000827
日期:——
unit of viomycin is shown to be the monoureide of C-formylglycine, which is present in peptide combination. Hydrogenolysis of viomycin followed by hydrolysis yields alanine, which is not present in viomycin hydrolysates and which is derived from the chromophore. Other reactions of viomycin which involve the chromophore are discussed. The rate of evolution of urea during mild hydrolyses of viomycin is shown
显示出维霉素的发色单元是C-甲酰基甘氨酸的单脲,其存在于肽组合中。维霉素的氢解然后水解产生丙氨酸,丙氨酸不存在于维霉素水解产物中,其衍生自发色团。讨论了涉及生色团的紫霉素的其他反应。尿素轻度水解过程中尿素的释放速率显示出与生色团的损失速率相对应。不稳定的产品,去氨脲霉素,可以与尿素重新组合以重建抗生素。