Synthesis of new hexahydro- and octahydropyrido[1,2-c]pyrimidine derivatives with an arylpiperazine moiety as ligands for 5-HT1A and 5-HT2A receptors
作者:Franciszek Herold、Jerzy Kleps、Irena Wolska、Gabriel Nowak
DOI:10.1016/s0014-827x(02)01274-0
日期:2002.12
Synthesis applied to prepare compounds 5-15 and 17-22 discussed in this paper has been presented in Scheme 1. Multi-stage preparation techniques were used to obtain 4-aryl-hexahydro 1-4 and (R,R) and (S,S) 4-aryl-octahydropyrido[1,2-c]pyrimidine-1,3-dione (16) derivatives, being the starting compounds for further modification. N-Alkylation of the imide group in compounds 1-4 and 16 followed, using
方案1中介绍了用于制备本文讨论的化合物5-15和17-22的合成方法。采用多步制备技术获得了4-芳基-六氢1-4和(R,R)和(S, S)4-芳基-八氢吡啶并[1,2-c]嘧啶-1,3-二酮(16)衍生物,是进一步修饰的起始化合物。随后使用1,4-二溴丁烷将化合物1-4和16中的酰亚胺基团进行N-烷基化反应,生成单溴丁基衍生物5-8和17。随后将这些化合物与合适的1-芳基或1-杂芳基哌嗪缩合,得到最终的六氢-9-15和八氢-18-22吡啶并[1,2-c]嘧啶-1,3-二酮衍生物。对最终产物进行筛选测试,以阐明对5-HT1A和5-HT2A受体的亲和力。