S.  Mukherjee, Shee, S., Poisson, T., Besset, T., and Biju, A. T., ?Enantioselective N-heterocyclic carbene-catalyzed cascade reaction for the synthesis of pyrroloquinolines via N-H functionalization of indoles?, Organic letters , vol. 20, no. 22, pp. 6998-7002, 2018.