SINGH, B., SHUKLA, S., & SINGH, M. (2010). Synthesis and Biological Activity of Sulphadiazine Schiff´ s Bases of Isatin and their N-Mannich Bases. Asian Journal of Chemistry, 19(7), 5013–5018. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/13098