Progress in 4,5-dihydropyrrole and[1,2-a]Quinoreoline Compounds
4,5-dihydropyrrole[1,2-a]quinoreoline compounds are a class of nitrogen-containing compounds with a wide range of pharmacological activities.Therefore,the synthesis of 4,5-dihydropyrrole and[1,2-a]quinicholorel skeleton has important theoretical research and practical significance.This paper reviews the preparation of 4,5-dihydropyrrole and[1,2-a]quinololine in recent decades,and summarizes the advantages and limitations of current synthetic methods and makes prospects for future developments.