Synthesis and Antimicrobial Activity of Novel [(3-Aminopyrimidiniumyl)thio]methyl Cephalosporins
作者:Yong-Zu Kim、Jong-Chan Lim、Jae-Hong Yeo、Chan-Sik Bang、Won-Sup Kim、Sam-Sik Kim、Yong-Min Woo、Duck-Ho Yang、Hunseung Oh、Keepyung Nahm
DOI:10.1021/jm00048a018
日期:1994.10
A series of novel cephalosporin compounds which have 3-[(aminopyrimidiniumyl)thio]methyl substituents was synthesized. They show high antimicrobial activity against various bacterial species including Pseudomonas aeruginosa. Structure-activity relationships with various thiopyrimidines, thiopyrimidiniums, bicyclic thiotriazolopyrimidiniums, and bicyclic thioimidazolopyrimidiniums as 3'-substituents
合成了一系列具有3-[(氨基嘧啶基)硫基]甲基取代基的新型头孢菌素化合物。它们对包括铜绿假单胞菌在内的各种细菌显示出很高的抗菌活性。还研究了与各种硫代嘧啶,硫代嘧啶,双环硫代三唑并嘧啶鎓和双环硫代咪唑并嘧啶鎓作为3'-取代基的结构活性关系;具有季铵化嘧啶鎓部分的头孢菌素比中性嘧啶头孢菌素具有更好的抗菌活性,并且使嘧啶鎓部分上的正电荷稳定对于更好的活性至关重要。根据半经验的PM3计算,嘧啶鎓环上的氨基和烷硫基取代基在电荷稳定和离域中起主要作用。