Design, synthesis, and antitumor evaluation of novel methylene moiety-tetheredtetrahydroquinoline derivatives
作者:Essam Hamied Ahmed HANASHALSHAHABY、Canan ÜNALEROĞLU、Ayşe AK CAN、Alp ÖZGÜN、Bora GARİPCAN
DOI:10.3906/kim-1907-71
日期:——
Novel methylene-tethered tetrahydroquinolines (THQs) and cyclopenta[$b$]pyridines were synthesized by one-pot multicomponent reactions of Mannich bases, enolizable ketones, and NH$_4}$OAc in water by an environmentally friendly K-10 montmorillonite clay-catalyzed reaction. The cytotoxic activities of 1-(2-methyl-8-methylene-5,6,7,8-tetrahydroquinolin-3-yl)ethanone (9a), ethyl 2-methyl-8-methylene-5,6,7,8-tetrahydroquinoline-3 carboxylate (9b), and 1-(2-methyl-7-methylene-6,7-dihydro-5$H$-cyclopenta[$b$]pyridin-3-yl)ethanone (11a) were tested against rat glioblastoma (C6), human breast cancer (MCF-7), prostate cancer (PC3), neuroblastoma (SH-SY5Y), and mouse fibroblast (L929) cell lines in a concentration-dependent (50-300 μM) and time-dependent (24-72 h) manner and expressed as IC$_50\, }$values. The results showed that compound 9a induced the lowest IC$_50\, }$values in all cell lines ranging from 111 ± 1.1 μM to 128 ± 1.3 μM when compared to 9b and 11a after 72 h. As an evaluation of antibacterial properties, a swarming motility assay was performed with the Pseudomonas aeruginosa PA01 strain and compound 9a showed higher inhibition of swarming motility.
通过环保型 K-10 蒙脱石粘土催化反应,曼尼希碱、可烯化酮和 NH$_4}$OAc 在水中发生单锅多组分反应,合成了新型亚甲基系四氢喹啉(THQs)和环五[$b$]吡啶。(9a) 、2-甲基-8-亚甲基-5,6,7,8-四氢喹啉-3-基乙酮 (9b)、1-(2-甲基-7-亚甲基-6,7-二氢-5$H$-环戊并[$b$]吡啶-3-基)乙酮 (11a)人乳腺癌(MCF-7)、前列腺癌(PC3)、神经母细胞瘤(SH-SY5Y)和小鼠成纤维细胞(L929)细胞系进行了浓度依赖性(50-300 μM)和时间依赖性(24-72 h)试验,并以 IC$_50\, }$ 值表示。 结果表明,与 9b 和 11a 相比,化合物 9a 在 72 小时后对所有细胞株诱导的 IC$_50\, }$ 值最低,从 111 ± 1.1 μM 到 128 ± 1.3 μM。