Bensuldazic acid sodium (compound 4f) is a lipophilic 3,5-disubstituted tetrahydro-2H-1,3,5-thiadiazine-2-thione (THTT) derivative that can be used as a prodrug model. Bensuldazic acid has antifungal activity[1].
References
[1] T Aboul-Fadl, et al. New prodrug approach for amino acids and amino-acid-like drugs. Eur JMed Chem (1996) 31, 165-169.