An unexpected Dimroth rearrangement leading to annelated thieno[3,2-d][1,2,3]triazolo[1,5-a]pyrimidines with potent antitumor activity
作者:Antonino Lauria、Chiara Patella、Ilenia Abbate、Annamaria Martorana、Anna Maria Almerico
DOI:10.1016/j.ejmech.2013.05.012
日期:2013.7
in the reaction leading to annelated thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidine core allowed the isolation of the linear isomer thieno[3,2-d][1,2,3]triazolo[1,5-a]pyrimidine. By decorating the linear isomer with the same chains that improved the biological activity of the angular isomers, new annelated thieno[3,2-d][1,2,3]triazolo[1,5-a]pyrimidines were designed and synthesized. They were selected
反应中发生异常的Dimroth重排,导致噻吩并[2,3- e ] [1,2,3]三唑并[1,5- a ]嘧啶核键化,从而可以分离线性异构体噻吩并[3,2- d ] [1,2,3]三唑并[1,5- a ]嘧啶。通过用改善链状异构体生物活性的相同链装饰线性异构体,可得到新的退火的噻吩并[3,2- d ] [1,2,3]三唑[1,5- a ]设计并合成了嘧啶。它们是由美国国家癌症研究所(NCI)的发育治疗计划(DTP)选择的,用于针对一组60种人类肿瘤细胞系的抗癌药物。生物学结果表明,新衍生物在纳摩尔浓度以下均具有很强的抗增殖活性。体内活性最高的化合物N- [2-(1 H-咪唑-4-基)乙基] -4-(3-苯基-10-氧代-4,10-二氢苯并噻吩并[3,2- d] ] [1,2,3]三唑并[1,5 - a ]嘧啶-4-基)丁酰胺显示出低毒和高效力。