Design, synthesis and binding properties of novel and selective 5-HT3 and 5-HT4 receptor ligands
作者:Maria Modica、Maria Santagati、Salvatore Guccione、Filippo Russo、Alfredo Cagnotto、Mara Goegan、Tiziana Mennini
DOI:10.1016/s0223-5234(01)01216-8
日期:2001.3
the 5-HT3 and 5-HT4 receptors of new thienopyrimidopiperazine and piperazinylacylaminodimethylthiophene derivatives, in order to identify potent and selective ligands for each receptor. The 3-amino-2-(4-benzyl-1-piperazinyl)-5,6-dimethyl-thieno[2,3-d]pyrimidin-4(3H)-one derivative 28 showed the highest affinity and selectivity for the 5-HT3 over the 5-HT4 receptor (5-HT3 Ki=3.92 nM, 5-HT4 not active)
这项工作报告了新的噻吩并嘧啶并哌嗪和哌嗪基糖基氨基二甲基噻吩衍生物的5-HT3和5-HT4受体的合成和结合试验,以便确定每种受体的有效和选择性配体。3-氨基-2-(4-苄基-1-哌嗪基)-5,6-二甲基-噻吩并[2,3-d]嘧啶-4(3H)-一衍生物28对5的亲和力和选择性最高-HT3超过5-HT4受体(5-HT3 Ki = 3.92 nM,5-HT4无效),而2- [4- [4-(2-嘧啶基)-1-哌嗪基]丁酰基氨基] -4,5 -5-二甲基-3-噻吩羧酸乙酯(41)对5-HT4的亲和力和选择性高于5-HT3受体(5-HT4 Ki = 81.3 nM,5-HT3不活泼)。以化合物41为模板,对哌嗪基糖基氨基二甲基噻吩系列(39-42)的化合物进行构象分析。