P. Deohate, Pradip, et al. “Novel Benzo-1,3,6-Thiadiazepines; Synthesis, Antimicrobial Activity and Isomerization into Benzo-1,3,5-Triazepines”. Asian Journal of Chemistry, vol. 16, no. 2, Aug. 2016, pp. 773-8, https://asianpubs.org/index.php/ajchem/article/view/14511.