Coumarin, chromone, and 4(3H)-pyrimidinone novel bicyclic and tricyclic derivatives as antiplatelet agents: synthesis, biological evaluation, and comparative molecular field analysis
作者:Giorgio Roma、Mario Di Braccio、Antonio Carrieri、Giancarlo Grossi、Giuliana Leoncini、Maria Grazia Signorello、Angelo Carotti
DOI:10.1016/s0968-0896(02)00307-3
日期:2003.1
As a further part of our chemical and biological studies in this field, we describe the multistep preparations of the properly substituted 2-(1-piperazinyl)chromone 1b, 4-(1-piperazinyl)coumarins 5c-h, their linear benzo-fused analogues 4a,b and 8a,b, bicyclic (15e-g) and tricyclic (15h,i) fused derivatives of 6-(1-piperazinyl)pyrimidin-4(3H)-one, and of the 4H-pyrido[1,2-a]pyrimidine derivatives 9b
作为我们在该领域化学和生物学研究的另一部分,我们描述了正确取代的2-(1-哌嗪基)色酮1b,4-(1-哌嗪基)香豆素5c-h及其线性苯并稠合的多步制备方法类似物4a,b和8a,b,6-(1-哌嗪基)嘧啶-4(3H)-one和4H-吡啶基的双环(15e-g)和三环(15h,i)稠合衍生物[1, 2-a]嘧啶衍生物9b,c。体外评估ADP,胶原蛋白或Ca(2+)离子载体A23187在富含血小板的血浆中诱导的对人血小板聚集的抑制特性显示化合物5d-g和15f,g,i的高活性依此顺序,香豆素5g和5d被证明是最有效的体外抗血小板药。因此,为了也考虑4-氨基香豆素的结构分类,