Synthesis and structure–activity relationships of new arylpiperazines: para substitution with electron-withdrawing groups decrease binding to 5-HT1A and D2A receptors
作者:Lourdes Santana、Eugenio Uriarte、Yagamare Fall、Marta Teijeira、Carmen Terán、Emilia Garcı́a-Martı́nez、Bo-Ragnar Tolf
DOI:10.1016/s0223-5234(02)01357-0
日期:2002.6
or 7 of a coumarin ring were designed and synthesised, and their affinities for 5-HT(1A) and D(2A) receptors were determined by radioligand binding assays. The influence of para substitution in the phenyl ring, substitution at position 4 of the coumarin system, and the coumarin position at which the piperazinylalkyl chain is linked was explored. Electron-withdrawing phenyl ring substituents para to the
设计并合成了其中N-苯基哌嗪通过丙氧基链连接到香豆素环的6或7位的化合物,并通过放射性配体结合测定法确定了它们对5-HT(1A)和D(2A)受体的亲和力。研究了苯环中对位取代,香豆素系统第4位的取代以及哌嗪基烷基链连接的香豆素位置的影响。哌嗪对位的吸电子苯环取代基大大降低了这两个受体的活性。在5HT(1A)的结合受到香豆素系统第4位的大量取代基的影响,而在D(2A)的结合受其电子特性的影响。哌嗪基烷基链是否插入香豆素系统的6或7位都不会显着影响结合亲和力。