Synthesis and cytotoxicity of novel 2,2′-bis- and 2,2′,2″-tris-indolylmethanes-based bengacarboline analogs
作者:Ratchanok Pingaew、Supaluk Prachayasittikul、Somsak Ruchirawat、Virapong Prachayasittikul
DOI:10.1007/s12272-012-0601-1
日期:2012.6
Tungstosilicic acid hydrate was employed as an efficient catalyst for the synthesis of bisindolylmethanes 4 using the Friedel-Crafts reaction of N-sulfonyl tryptamine 5 with various aromatic aldehydes, except 3-formylindole. In the excluding case, tris-indolylmethane 7 was formed via a sequential addition-elimination-addition process. The bioactivity test revealed that the phenolic hydroxyl group plays
钨硅酸水合物被用作合成双吲哚甲烷 4 的有效催化剂,使用 N-磺酰基色胺 5 与各种芳香醛(3-甲酰基吲哚除外)的弗瑞德-克来福特反应。在排除的情况下,三-吲哚基甲烷7是通过顺序加成-消除-加成过程形成的。生物活性试验表明酚羟基在细胞毒性中起重要作用;它表明邻位和对羟基双吲哚甲烷 (BIM) 类似物(4b 和 4d)对 HepG2(人肝细胞肝癌细胞系)和 MOLT-3(人淋巴细胞白血病细胞系)癌细胞系显示出细胞毒性效力。值得注意的是,这两种类似物在 HepG2 细胞中显示出略高于对照药物依托泊苷的抑制功效,