Structure-based design and structure-activity relationships of 1,2,3,4-tetrahydroisoquinoline derivatives as potential PDE4 inhibitors
作者:Yixian Liao、Yiming Guo、Sumei Li、Lei Wang、Yongmei Tang、Tianmiao Li、Weihao Chen、Guohua Zhong、Gaopeng Song
DOI:10.1016/j.bmcl.2018.02.056
日期:2018.4
Among them, compound 19 exhibited the strongest inhibition against PDE4B with an IC50 of 0.88 µM and 21 times more potent selectivity toward PDE4B over PDE4D when compared to rolipram. A primary structure-activity relationship study showed that the attachment of CH3O group or CF3O group to the phenyl ring at the para-position was helpful to enhance the inhibitory activity against PDE4B. Moreover, sulfonamide
本文介绍了我们在7-(环戊氧基)-6-甲氧基1,2,3,4-四氢异喹啉支架上的药物化学研究:使用构象限制方法和生物等位取代策略的设计,合成和生物学评估。生物数据显示,大多数这个系列的合成的化合物的显示中度至针对PDE4B有效抑制活性和LPS诱导的TNF的强烈抑制α释放。其中,化合物19对PDE4B表现出最强的抑制作用,IC 50为0.88 µM,并且与咯利普兰相比,对PDE4B的选择性比PDE4D高21倍。初步的结构-活性关系研究表明,CH 3 O基团或CF的附着对位的苯环上的3 O基团有助于增强对PDE4B的抑制活性。此外,磺酰胺基在提高对PDE4B的抑制活性和亚型选择性方面起着关键作用。另外,在1,2,3,4-四氢异喹啉环的C-3位置附加的刚性取代基对亚型选择性有利,这与观察到的对接模拟吻合得很好。