The B-ring of Benzoazepinoisoquinolones 1a–b was successfully constructed by Pomeranz–Fritsch reaction. The key intermediates 5a–b could be transformed from 9a–b via Overman rearrangement. The bioassay showed that 11 compounds are more active than sorafenib (IC50 = 7.56 μM) against A375 melanoma cell line, among which 1a, 5a, 8a and 10c with IC50 values of 0.59, 0.20, 0.17 and 0.11 μM, respectively
通过Pomeranz-Fritsch反应成功构建了苯并氮杂
异喹啉酮1a - b的B环。关键中间体5a – b可以通过Overman重排从9a – b转换而来。
生物测定表明,有11种化合物 对索非尼(A375)
黑色素瘤
细胞系具有比
索拉非尼(IC 50 = 7.56μM)更高的活性,其中1a,5a,8a和10c的IC 50值分别为0.59、0.20、0.17和0.11μM。强大的细胞毒性接近或什至比抗黑素瘤药物维拉非尼(IC 50 = 0.18μM)。另外,5a,8a和10c在HCT116结肠
细胞系上比维拉非尼和
索拉非尼更具活性(5a,8a,10c,维拉非尼和
索拉非尼的IC 50值:0.86、0.65、0.42,> 30和5.65μM)。因此,这些化合物是用于进一步药物开发的有希望的候选物。