Gold(III) chloride catalyzed regioselective synthesis of pyrano[3,4-b]indol-1(9H)-ones and evaluation of anticancer potential towards human cervix adenocarcinoma
作者:Chandrasekaran Praveen、Asairajan Ayyanar、Paramasivan Thirumalai Perumal
DOI:10.1016/j.bmcl.2011.05.088
日期:2011.7
A highly regioselective synthesis of pyrano[3,4-b]indol-1(9H)-ones via gold(III) chloride catalyzed cycloisomerization of 3-ethynyl-indole-2-carboxylic acid was achieved in good to excellent yields. These compounds were screened for their in vitro cytotoxicity against human cervical (HeLa) cell lines. Out of ten compounds, three compounds (7d, 7e and 7j) showed comparable proliferation inhibitory activity
通过氯化金(III)催化3-乙炔基-吲哚-2-羧酸的环异构化,高度区域选择性地合成了吡喃并[3,4- b ]吲哚-1(9 H)-,得到了很好的收率。筛选这些化合物对人宫颈(HeLa)细胞系的体外细胞毒性。在十种化合物中,三种化合物(7d,7e和7j)显示出与标准药物顺铂相当的增殖抑制活性。发现化合物7d最有效,IC 50值为0.22μM。