Multicomponent Dipolar Cycloaddition Strategy: Combinatorial Synthesis of Novel Spiro-Tethered Pyrazolo[3,4-<i>b</i>]quinoline Hybrid Heterocycles
作者:Remani Vasudevan Sumesh、Muthumani Muthu、Abdulrahman I. Almansour、Raju Suresh Kumar、Natarajan Arumugam、S. Athimoolam、E. Arockia Jeya Yasmi Prabha、Raju Ranjith Kumar
DOI:10.1021/acscombsci.6b00003
日期:2016.5.9
The stereoselective syntheses of a library of novel spiro-tethered pyrazolo[3,4-b]quinoline–pyrrolidine/pyrrolothiazole/indolizine–oxindole/acenaphthene hybrid heterocycles have been achieved through the 1,3-dipolar cycloaddition of azomethine ylides generated in situ from α-amino acids and 1,2-diketones to dipolarophiles derived from pyrazolo[3,4-b]quinoline derivatives.
通过从现场原位生成的偶氮甲ine啶基的1,3-偶极环加成反应,可以实现新型螺拴的吡唑并[3,4- b ]喹啉-吡咯烷/吡咯并噻唑/吲哚嗪-ox吲哚/ ac杂杂杂环的文库的立体选择性合成。吡唑并[3,4- b ]喹啉衍生物衍生的α-氨基酸和1,2-二酮。