Gautam, N., Ajmera, N., Gupta, S., & Gautam, D. C. (2012). Synthesis, spectral characterization and biological evaluation of 4H-1,4-benzothiazines, their sulfones and ribofuranosides. European Journal of Chemistry, 3(1), 106–111. https://doi.org/10.5155/eurjchem.3.1.106-111.489