Synthesis of novel 2,5-bis(substituted thio)-1,3,4-thiadiazoles by acid catalyzed intermolecular cyclization reactions of substituted dithiocarbazates as a possible 2019-nCoV main protease inhibitor

Muzzaffar A. Bhat, Misba Jan, Unjum Manzoor, Aabid H. Shalla, Ray J. Butcher, Jerry P. Jasinski