bibliographicCitation |
Li X, Yi R, Liu B, Li Z, Yu X, Yi P. Synthesis of Dispiro[indole-3,2′-pyrrolidine-3′,2″-pyrrolizine]-1″,2(1H)-dionesviaAzomethine Ylide 1,3-Dipolar Cycloaddition. J. Heterocyclic Chem. 2013 Jul;50(4):925–8. doi: 10.1002/jhet.1103. |