Synthesis and analgesic profile of conformationally constrained N-acylhydrazone analogues: Discovery of novel N-arylideneamino quinazolin-4(3H)-one compounds derived from natural safrole
作者:Rodolfo C. Maia、Leandro L. Silva、Eduardo F. Mazzeu、Milla M. Fumian、Claudia M. de Rezende、Antonio C. Doriguetto、Rodrigo S. Corrêa、Ana Luisa P. Miranda、Eliezer J. Barreiro、Carlos Alberto Manssour Fraga
DOI:10.1016/j.bmc.2009.08.009
日期:2009.9
we reported the synthesis and evaluation of the analgesic, anti-inflammatory, and platelet anti-aggregating properties of new 3-(arylideneamino)-2-methyl-6,7-methylenedioxy-quinazolin-4(3H)-one derivatives (3a–j), designed as conformationally constrained analogues of analgesic 1,3-benzodioxolyl-N-acylhydrazones (1) previously developed at LASSBio. Target compounds were synthesized in very good yields
在这项工作中,我们报告了新的3-(芳基亚氨基)-2-甲基-6,7-亚甲基二氧基-喹唑啉-4(3 H)-one的止痛,抗炎和血小板抗聚集特性的合成和评估。衍生物(3a–j),被设计为以前在LASSBio上开发的镇痛性1,3-苯并二氧戊基-N-酰基hydr的构象受限类似物(1)。以丰富的巴西天然产物黄樟脑(2)为起始原料,以很高的收率合成了目标化合物。药理分析使我们鉴定出化合物LASSBio-1240(3b)和LASSBio-1272(3d)作为新的镇痛剂原型,其抗伤害感受性分别比使用双嘧啶和吲哚美辛作为AcOH诱导的腹部收缩试验和福尔马林试验中的标准品更有效。这些结果证实了在构象限制策略的开发中的成功,该策略用于鉴定具有优化的镇痛作用的新型环状N-酰基hydr类似物。