Synthesis and Reactions of Some New Substituted Pyridine and Pyrimidine Derivatives as Analgesic, Anticonvulsant and Antiparkinsonian Agents
作者:Abd El-Galil E. Amr、Hayam H. Sayed、Mohamed M. Abdulla
DOI:10.1002/ardp.200500982
日期:2005.9
A series of substituted pyridine and pyrimidine derivatives were synthesized as analgesic, anti convulsant, and antiparkinsonian agents by using compounds 1, 2, and 9 as starting materials. Pyr idino‐imide derivative 3 was prepared by condensation of 1 with tetrachlorophthalic anhydride and compounds 4 and 5 were also obtained by reaction of compound 1 with 1,2,4,5‐benzene‐tetra carboxylic dianhydride
以化合物1、2、9为起始原料,合成了一系列取代的吡啶和嘧啶衍生物作为镇痛、抗惊厥和抗帕金森病药物。1与四氯邻苯二甲酸酐缩合得到吡啶基-酰亚胺衍生物3,化合物1与1,2,4,5-苯-四羧酸二酐和1,4,5,8反应得到化合物4和5 -萘四甲酸二酐,分别。类似地,化合物 2 与之前的酸酐反应,分别得到相应的酰亚胺 6 和双酰亚胺衍生物 7 和 8。双-芳基亚甲基衍生物9用过氧化氢处理得到相应的双-环氧乙烷环烷酮衍生物10,再与硫脲缩合得到相应的硫代嘧啶衍生物11。在无水乙酸钠存在下用氯乙酸处理化合物11得到相应的噻唑并嘧啶衍生物12,其在乙酸/乙酸酐中与芳香醛缩合得到芳基亚甲基衍生物13。此外,化合物13可以通过化合物11的反应制备与氯乙酸、芳香醛和乙酸钠在乙酸和乙酸酐的混合物中反应。药理筛选表明,这些获得的化合物中有许多具有与作为参比药物的伐地昔布、卡马西平和苯扎托品相当的镇痛、抗惊厥和抗帕金森病活性。