Design and Synthesis of Piperidine-3-carboxamides as Human Platelet Aggregation Inhibitors
作者:Xiaozhang Zheng、Somna R. Salgia、Walter B. Thompson、Elwood O. Dillingham、Stephen.E. Bond、Zixia Feng、K. Ram Prasad、Ram Gollamudi
DOI:10.1021/jm00001a023
日期:1995.1
structure-activity analysis was carried out using eight 1-alkyl(aralkyl)nipecotamides (type 5), 33 bis-nipecotamidoalkanes and aralkanes (type 6), and 7 N,N'-bis(nipecotoyl)-piperazines (type 7) as inhibitors of human platelet aggregation. Steric factors played an important role in determining the activity of type 5 compounds possessing an an appropriate degree of hydrophobic character. Types 6 and 7 compounds were
使用8种1-烷基(芳烷基)哌酰胺类(5型),33种双-邻酰胺基烷烃和芳烃(6类)和7种N,N'-双(苯甲酰基)-哌嗪(7类)进行了详细的结构活性分析)作为人类血小板聚集的抑制剂。立体因子在确定具有适当程度的疏水性的5型化合物的活性中起着重要作用。6型和7型化合物比相应的5型分子更有效。疏水特性似乎影响6型化合物的活性。哌啶环上的3-取代基对于抗血小板活性是必不可少的。取代基最好是酰胺,其C直接连接在环上。3,5-二取代和2-取代导致活性下降。当两个nipecotoyl环N原子通过一个芳烷基连接并相隔约7 A时,可获得最佳活性。这表明范德华力和pi相互作用可能决定抑制剂与血小板之间的相互作用。最有效的6型抑制剂是α,α'-双[3-(N-乙基-N-丁基氨基甲酰基)哌啶子基]-对二甲苯(6i)。最有效的5型化合物是1-癸基-3-(N,N-二乙基氨基甲酰基)哌啶(5a)。7型化合物哌嗪环上的任何取