Bioisosteric design of conformationally restricted pyridyltriazole histamine H2-receptor antagonists
作者:Christopher A. Lipinski
DOI:10.1021/jm00355a001
日期:1983.1
This process, when applied to histamine, leads to the competitive histamine H2-receptor antagonist prototype 3-amino-5-(2-amino-4-pyridyl)-1,2,4-triazole (7). The biaryl nature of 7 fixes internitrogen distances, and comparison of these with histamine suggests that 7 shares structural features more in common with histamine trans rather than histamine gauche conformations. Alkylation of the prototype
描述了生物立体异构药物设计的方法,由此以类似于合成的方式,效应分子的关键部分被药效团或生物立体异构体相继替代。当该过程应用于组胺时,会产生竞争性的组胺H2-受体拮抗剂原型3-氨基-5-(2-氨基-4-吡啶基)-1,2,4-三唑(7)。7的联芳性质固定了氮之间的距离,将它们与组胺进行比较表明,7的结构特征与组胺反式而非组胺膜构象更为相似。7中原型吡啶基氨基的烷基化显着提高了组胺H2受体拮抗剂和胃酸的抗分泌活性,因此生成的试剂3-氨基-5- [2-(乙基氨基)-4-吡啶基] -1,2,4 -三唑(8)比西咪替丁更具活性。