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  • Title: N-Heterocyclic carbene-catalyzed annulation of cyclic β-enamino esters with enals: access to functionalized indolo[2,3-a]quinolizidines.
    Author: Hu S, Wang B, Zhang Y, Tang W, Fang M, Lu T, Du D.
    Journal: Org Biomol Chem; 2015 Apr 28; 13(16):4661-7. PubMed ID: 25799005.
    Abstract:
    A novel synthetic approach to functionalized indolo[2,3-a]quinolizidines is developed via an N-heterocyclic carbene (NHC)-catalyzed annulation of cyclic β-enamino esters with enals . This methodology offers a pathway for quick and efficient construction of an indolo[2,3-a]quinolizidine skeleton which is a core structure of many natural products with diverse bioactivities.
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