Raja, R., Govindaraj, J., Suresh, M., Raghunathan, R., & SubbiahPandi, A. (2015). Crystal structure of ethyl 5′′-fluoro-2′′,3-dioxo-6′,7′,8′,8a’-tetra­hydro-2′H,3H,5′H-di­spiro­[benzo[b]thio­phene-2,1′-indol­izine-3′,3′′-indoline]-2′-carboxyl­ate. Acta Crystallogr E Crystallogr Commun.

Raja, R., J. Govindaraj, M. Suresh, R. Raghunathan, and A. SubbiahPandi. "Crystal Structure of Ethyl 5′′-fluoro-2′′,3-dioxo-6′,7′,8′,8a’-tetra­hydro-2′H,3H,5′H-di­spiro­[benzo[b]thio­phene-2,1′-indol­izine-3′,3′′-indoline]-2′-carboxyl­ate." Acta Crystallogr E Crystallogr Commun 2015.

Raja, R., et al. "Crystal Structure of Ethyl 5′′-fluoro-2′′,3-dioxo-6′,7′,8′,8a’-tetra­hydro-2′H,3H,5′H-di­spiro­[benzo[b]thio­phene-2,1′-indol­izine-3′,3′′-indoline]-2′-carboxyl­ate." Acta Crystallogr E Crystallogr Commun 2015.