Structural Features Resulting in Convulsive Activity of Carbapenem Compounds: Effect of C-2 Side Chain.
作者:MAKOTO SUNAGAWA、HARUKI MATSUMURA、YOSHIHIRO SUMITA、HIROSHI NOUDA
DOI:10.7164/antibiotics.48.408
日期:——
convulsions by carbapenem antibiotics, the structure-activity relationship on convulsant activity was investigated in N-acetyl-2-pyrroline and cyclopentene derivatives which correspond to the 5-membered ring containing the C-2 side chain of carbapenem antibiotics. Among these derivatives, compounds with strong basicity in the side chain showed convulsant activity similar to that of the parent carbapenem compounds
对小鼠进行脑室内给药后,美罗培南的神经毒性远低于亚胺培南和帕尼培南。为了弄清碳青霉烯类抗生素引起惊厥的主要结构特征,研究了N-乙酰基-2-吡咯啉和环戊烯衍生物的惊厥活性的构效关系,它们对应于含有C-2的5元环碳青霉烯抗生素的侧链。在这些衍生物中,在侧链上具有强碱性的化合物表现出类似于母体碳青霉烯化合物的惊厥活性。除了氨基的碱性的强度外,从羧基到氨基的距离以及在氨基周围的空间拥挤也似乎在引起惊厥中起重要作用。γ氨基丁酸(GABAA)受体结合测定的结果表明,惊厥的诱导主要是由抑制GABAA介导的抑制性传递引起的。但是,其中一些化合物的体内惊厥活性与它们对GABAA受体结合的体外抑制作用无关。