title: New tetrahydro-2H-1,3,5-thiadiazine-2-thione derivatives as potential antimicrobial agents.
abstract: The deacylated chloramphenicol amine D-(-)-threo-2-amino-1-(4-nitrophenyl)-1,3-diol (D-amine, 1a), and its enantiomer, the L-(+)-threo-form (L-amine, 1b), were introduced into a tetrahydro-2H-1,3,5-thiadiazine-2-thione (THTT) skeleton. They are incorporated in three ways (Chart 1, types I-III) at N3 (type I), N5 (type II) or both N3 and N5 (type III) of the THTT system. These selections were made in order to investigate the effect of combining the structural features of the THTT and the D-amine on the antimicrobial activity, if any.
authors.affiliation: Faculty of Pharmacy, University of Assiut, Egypt.
authors.forename: A N
authors.initials: AN
authors.lastname: El-Shorbagi
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D002701:Chloramphenicol / Q000494:pharmacology; D005658:Fungi / Q000187:drug effects*; D007202:Indicators and Reagents; D008826:Microbial Sensitivity Tests; D013329:Structure-Activity Relationship; D013829:Thiadiazines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D013871:Thiones / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D000935:Antifungal Agents; D007202:Indicators and Reagents; D013829:Thiadiazines; D013871:Thiones; D002701:Chloramphenicol