Design and synthesis of peptide derivatives of a 3-deoxy-D-manno-2-octulosonic acid (KDO) analog as novel antibacterial agents acting upon lipopolysaccharide biosynthesis
作者:Alf Claesson、Anita M. Jansson、Brian G. Pring、Stephen M. Hammond、Bertil Ekstroem
DOI:10.1021/jm00395a022
日期:1987.12
cytidylyltransferase, attempts were made to design derivatives that would act as antibacterials against Gram-negative bacteria by inhibiting lipopolysaccharide biosynthesis. Compound 3 and the derivatives 15 and 16 containing an additional amino acid were not lethal to bacteria. However, compounds 17-22, which contain a N-terminally linked dipeptide, exhibited good antibacterial activity in vitro on testing against
基于以下认识,氨基酸3(8-氨基-2,6-脱水-3,8-二脱氧-D-甘油-D-talo-辛酸)是有效的3-脱氧-甘露聚糖-抑制剂试图通过设计八辛酸胞苷基转移酶来设计衍生物,该衍生物通过抑制脂多糖的生物合成来作为革兰氏阴性菌的抗菌剂。化合物3以及含有额外氨基酸的衍生物15和16对细菌没有致死性。但是,含有N末端连接的二肽的化合物17-22在体外测试对革兰氏阴性细菌大肠杆菌和鼠伤寒沙门氏菌的菌株时表现出良好的抗菌活性。它们对革兰氏阳性细菌如金黄色葡萄球菌没有活性。