6‐Aryl and Heterocycle Quinazoline Derivatives as Potent EGFR Inhibitors with Improved Activity toward Gefitinib‐Sensitive and ‐Resistant Tumor Cell Lines
作者:Mostafa M. Hamed、Dalal A. Abou El Ella、Adam B. Keeton、Gary A. Piazza、Ashraf H. Abadi、Rolf W. Hartmann、Matthias Engel
DOI:10.1002/cmdc.201300147
日期:2013.9
thiourea derivatives 6 a, 6 b and compound 10 b also retained significant activity toward the gefitinib‐insensitive EGFRT790M/L858R mutant, displaying up to 24‐fold greater potency than gefitinib. In addition, cell growth inhibitory activity was tested against cancer cell lines with wild‐type (KB cells) and mutant EGFR (H1975 cells). Several compounds including 6 a were found to be more potent than the
合成了一组在6位具有可变芳基和杂环取代基的新型苯并喹唑啉衍生物,并测试了它们的EGFR抑制活性。芳基和杂环通过不同的键(如亚胺,酰胺和硫脲)连接到喹唑啉支架上。大多数芳基和杂环衍生物均表现出对野生型EGFR的有效抑制作用,其IC 50值在低纳摩尔范围内。在这些当中,硫脲衍生物6,图6b和化合物10b中也保留显著活性朝向吉非替尼不敏感的EGFR T790M / L858R突变体,其功效比吉非替尼高24倍。此外,测试了针对野生型(KB细胞)和突变型EGFR(H1975细胞)癌细胞系的细胞生长抑制活性。包含数种化合物6a的被发现是比朝向这两个细胞系的参考化合物吉非替尼更有效,因为是对化合物的情况下10b中对H1975细胞。因此,化合物6a和10b尤其可以作为开发有效抗野生型EGFR抑制剂和吉非替尼耐药突变体的抑制剂的新先导。