Synthesis and QSAR study of novel cytotoxic spiro[3H-indole-3,2′(1′H)-pyrrolo[3,4-c]pyrrole]-2,3′,5′(1H,2′aH,4′H)-triones
作者:Adel S. Girgis、Jacek Stawinski、Nasser S.M. Ismail、Hanaa Farag
DOI:10.1016/j.ejmech.2011.10.058
日期:2012.1
5-diones 1a-e with non-stabilized azomethine ylides, generated in situ via decarboxylative condensation of isatins 2a–c and sarcosine (3) in refluxing ethanol, afforded 4′-aryl-5′a,6′-dihydro-1′-methyl-spiro[3H-indole-3,2′(1′H)-pyrrolo[3,4-c]pyrrole]-2,3′,5′(1H,2′aH,4′H)-triones 4a–o in good yields. Compound 4l exhibited high anti-tumor activity against HEPG2 (liver cancer) cell line (IC50 = 12.16 μM) compared
1-芳基-1 H-吡咯-2,5-二酮1a-e与1,3-偶极环加成反应与靛红2a – c和肌氨酸(3)在回流条件下的脱羧缩合反应原位生成的不稳定的甲亚胺基亚胺乙醇,得到4'-芳-5'一,6'-二氢-1'-甲基-螺〔3 ħ -吲哚-3,2' - (1' ħ) -吡咯并[3,4- c ^ ]吡咯] - 2,3',5'(1 ħ,2'啊,4' ħ)-triones 4A - ø以良好的收率。化合物4l对HEPG2(肝癌)细胞系(IC 与阿霉素(IC 50 = 7.36μM)相比,其浓度为50 = 12.16μM),其他合成的化合物显示出对HCT116(结肠),MCF7(乳腺癌)和HEPG2(肝)人肿瘤细胞系的中等抗肿瘤特性。结合3D药效基团建模和定量构效关系(QSAR)分析,以探讨控制所观察到的抗肿瘤特性的结构要求。发现影响这些化合物效力的主要结构因素与其基本骨架有关。