1. 1. Arora P., Arora V., Lamba H.S. and Wadhwa D.: Importance of heterocyclic chemistry a review, Int. J. Pharm. Scie. Res. 2012, 3, 2947-2954.
2. 2. Dua R., Shrivastava S., Sonwane S.K. and Srivastava S.K.: Pharmacological significance of synthetic heterocycles scaffold a review, Adv. Biol. Res. 2011, 5, 120-144.
3. 3. Saini M.S., Kumar A., Dwivedi J. and Singh R.: A review biological significances of heterocyclic compounds, Int. J. Pharm. Scie. Res. 2013, 4, 66-77.
4. 4. Eicher T., Hauptmann S and Speicher A.: The chemistry of heterocycles structure, reactions, synthesis and applications, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim (3rd ed.).
5. 5. Martins P., Jesus J., Santos S., Raposo L.R., Roma-Rodrigues C., Baptista P.V. and Fernandes A.R.: Heterocyclic anticancer compounds recent advances and the paradigm shift towards the use of nanomedicine's tool box, Molecules 2015, 20(9), 16852-1689.