Discovery of 2-methoxy-3-phenylsulfonamino-5-(quinazolin-6-yl or quinolin-6-yl)benzamides as novel PI3K inhibitors and anticancer agents by bioisostere
作者:Teng Shao、Juan Wang、Jian-Gang Chen、Xiao-Meng Wang、Huan Li、Yi-Ping Li、Yan Li、Guang-De Yang、Qi-Bing Mei、San-Qi Zhang
DOI:10.1016/j.ejmech.2014.01.053
日期:2014.3
2-Substituted-3-sulfonamino-5-(quinazolin-6-yl or quinolin-6-yl)benzamides have been proposed as novel structures of PI3K inhibitors and anticancer agents based on bioisostere. In the present study, 2-substituted-3-sulfonamino-5-(4-morpholinoquinazolin-6-yl)benzamides and 2-methoxy-3-sulfonamino-5-(4-morpholinoquinolin-6-yl)benzamides were synthesized. Their antiproliferative activities in vitro were evaluated via MTT assay against four human cancer cell lines, including A549, HCT-116, U-87 MG and KB. The SAR of the title compounds was preliminarily discussed. Compound 1a with potent antiproliferative activity was tested for its inhibitory activity against MK and mTOR and its effect on the AKT and p-AKT(473). The anticancer effect of la was evaluated in established nude mice U-87 MG xenograft model. The results suggest that compound la can significantly inhibit PI3K/AKT/mTOR pathway and tumor growth. These findings strongly support the assumption that title compounds are potent PI3K inhibitors and anticancer agents. (C) 2014 Elsevier Masson SAS. All rights reserved.