Ding, N., Lu, Z., Zhang, W., Chun, Y., & Li, Y. (2012). Influence of Sugar Residue on the Cytotoxicity and Solubility of Several Aryl-indolo[2,3-a]pyrrolo[3,4-c]carbazoles and the Corresponding Maleimides. Asian Journal of Chemistry, 25(3), 1397–1400. https://doi.org/10.14233/ajchem.2013.13040