Protic-Solvent-Mediated Cycloisomerization of Quinoline and Isoquinoline Propargylic Alcohols: Syntheses of (±)-3-Demethoxyerythratidinone and (±)-Cocculidine
作者:Stephen T. Heller、Toshihiro Kiho、Alison R. H. Narayan、Richmond Sarpong
DOI:10.1002/anie.201304687
日期:2013.10.11
route to these unique azacycles (see example). The utility of the benzindolizinone products was demonstrated by the application of this method to the total synthesis of the Erythrinaalkaloids 3‐demethoxyerythratidinone and cocculidine.
将“苯”放入吲哚嗪酮中:苯并[ g ] 吲哚嗪酮和苯并[ e ] 吲哚嗪酮的环异构化方法为这些独特的氮杂环提供了第一条通用路线(参见示例)。通过将这种方法应用于刺桐生物碱 3-脱甲氧基赤霉啶酮和球虫碱的全合成,证明了苯并吲哚嗪酮产品的实用性。
Isoquinoline-based biaryls as a robust scaffold for microtubule inhibitors
We here report the discovery of isoquinoline-based biaryls as a new scaffold for colchicine domain tubulin inhibitors. Colchicinoid inhibitors offer highly desirable cytotoxic and vascular disrupting bioactivities, but their further development requires improving in vivo robustness and tolerability: properties that both depend on the scaffold structure employed. We have developed isoquinoline-based biaryls as a novel scaffold for high-potency tubulin inhibitors, with excellent robustness, druglikeness, and facile late-stage structural diversification, accessible through a tolerant synthetic route. We confirmed their bioactivity mechanism in vitro, developed soluble prodrugs, and established safe in vivo dosing in mice. By addressing several problems facing the current families of inhibitors, we expect that this new scaffold will find a range of in vivo applications towards translational use in cancer therapy. (C) 2019 Elsevier Masson SAS. All rights reserved.