Unsymmetrically-Substituted 5,12-dihydrodibenzo[b,f][1,4]diazocine-6,11-dione Scaffold—A Useful Tool for Bioactive Molecules Design
作者:Bartosz Bieszczad、Damian Garbicz、Damian Trzybiński、Marta K. Dudek、Krzysztof Woźniak、Elżbieta Grzesiuk、Adam Mieczkowski
DOI:10.3390/molecules25122855
日期:——
Unsymmetrically N-substituted and N,N’-disubstituted 5,12-dihydrodibenzo [b,f][1,4]diazocine-6,11-diones were synthesized in the new protocol. The desired modifications of the dibenzodiazocine scaffold were introduced at the stages of proper selection of building blocks as well as post-cyclization modifications with alkylation or acylation agents, expanding the structural diversity and possible applications
在新协议中合成了不对称 N-取代和 N,N'-二取代 5,12-二氢二苯并 [b,f][1,4]diazocine-6,11-二酮。在正确选择结构单元以及用烷基化或酰化剂进行环化后修饰的阶段引入了二苯并二氮嗪支架的所需修饰,从而扩展了合成分子的结构多样性和可能的应用。所开发方法的扩展导致了新的合成:三环 5,10-二氢苯并[b]噻吩并[3,4-f][1,4]diazocine-4,11-dione 支架和具有两个苯二氮卓环的稠合五环骨架在其结构内。此外,前所未有的 5,12-二氢二苯并[b,f][1,4]diazocine-6,11-diones 重排为 2-(2-aminophenyl)isoindoline-1,3-二酮在碱性条件下在氢化钠存在下观察到仲双内酰胺。通过单晶 X 射线衍射分析确定了 9 种合成产物的结构。对所研究的三环和五环系统的详细晶体学分析揭示了它们的结构特征。一