In order to further explore quinoline-type structural modification of the powerful anticancer drug dolastatin 10, an Indian Ocean sea hare constituent and parent molecule of the very successful antibody drug conjugate (ADC) Adcetris, our recent quinstatin study has been extended by replacing the quinoline ring with an isoquinoline. The resulting isoquinstatins (4–6) were modified to N-terminal des
为了进一步探索功能强大的抗癌药dolastatin 10(一种非常成功的
抗体药物偶联物(ADC)Adcetris的印度洋海兔成分和母体分子)的
喹啉型结构修饰,我们最近的quinstatin研究已通过替换
喹啉来扩展与
异喹啉环。将得到的异喹他汀类药物(4 – 6)修饰为N-末端去甲基异喹他汀类药物(7 – 9),然后与适当的接头单元键合,得到接头-去甲基异喹他汀类药物缀合物11 – 13为最终的单克隆
抗体附着做准备。将新的异喹他汀与它们的喹他丁素对应物与六种人类癌
细胞系进行比较后发现,异喹他汀的GI 50值可与同分异构的喹他汀相比或更高。然而,去甲基异喹他汀5(7)比其去甲基喹他汀5类似物更有效。当针对喹他汀8评估时,其异喹他汀8(6)对应物效力稍差。通常,所评估的异喹他汀被证明是相当强的癌细胞生长
抑制剂。