作者:Jennifer Goodacre、Leonard Jeffries、John H. C. Nayler、Roger J. Ponsford、Irene Stirling
DOI:10.1021/jm00221a015
日期:1977.11
amino acids. N-Iodoacetyl or -bromoacetyl derivatives of the peptides were then prepared in the hope that they would serve as active-site-directed irreversible inhibitors of cell wall transpeptidases. Certain of the halogenoacetyl dipeptide esters, but not the corresponding free acids, showed slight antistaphylococcal activity. Subsequent structural variation showed that inclusion of C-alanine or L-lysine
D-丙氨酸和L-赖氨酸在细菌细胞壁中肽聚糖交联过程中的重要作用促使人们制备了包含这些氨基酸的各种小肽。然后制备肽的N-碘乙酰基或-溴乙酰基衍生物,希望它们可用作细胞壁转肽酶的活性位点导向的不可逆抑制剂。某些卤代乙酰二肽酯显示出轻微的抗葡萄球菌活性,但没有相应的游离酸。随后的结构变化表明,不需要包含C-丙氨酸或L-赖氨酸,因为当二肽单元被甘氨酰甘氨酸或ω-氨基链烷酸替代时,抗菌活性至少一样好。