Synthesis and Pharmacological Evaluation of Noscapine-Inspired 5-Substituted Tetrahydroisoquinolines as Cytotoxic Agents
作者:Shane M. Devine、Cassandra Yong、Dzifa Amenuvegbe、Luigi Aurelio、Divya Muthiah、Colin Pouton、Richard Callaghan、Ben Capuano、Peter J. Scammells
DOI:10.1021/acs.jmedchem.8b00986
日期:2018.9.27
A series of 5-substituted tetrahydroisoquinolines was synthesized via a 10-step linear synthesis to assess whether replacement of noscapine’s southern isobenzofuranone with other moieties resulted in retained cytotoxic activity. One such molecule, 18g, bearing a para-methoxybenzyl functionality with N-ethylcarbamoyl substitution, produced cell-cycle arrest at the G2/M phase with an EC50 of 2.7 μM in
通过10步线性合成法合成了一系列5取代的四氢异喹啉,以评估用其他部分取代Noscapine的南部异苯并呋喃酮是否会导致保留的细胞毒活性。一个这样的分子,18g,带有对-甲氧基苄基官能团和N-乙基氨基甲酰基取代基,在MCF-7乳腺癌细胞系7-MCF中,在G2 / M期产生细胞周期停滞,EC 50为2.7μM。与Noscapine相比,折叠倍数增加(5)。该分子对抗性NCI / Adr RES具有相似的活性(EC 50为2.5μM)不同于目前的细胞毒剂,证明其具有克服或避免已知耐药机制的潜力。发现化合物18g可以改变P-gp的药物外流活性,并且在联合研究中可以增强长春碱的抗增殖活性。这些结果提供了对Noscapine的结构修饰的见解,它将指导未来的发展朝着对抗性癌细胞具有活性的更有效的细胞毒剂发展。