title: Synthesis, structural characterization and biological evaluation of novel [1,2,4]triazolo [1,5-b][1,2,4]benzothiadiazine-benzothiazole conjugates as potential anticancer agents.
abstract: Two series of 10-substituted 5,5-dioxo-5,10-dihydro[1,2,4]triazolo[1,5-b][1,2,4]benzothiadiazine 2-methyl/ethyl sulfanyl benzothiazole derivatives (5a-d) and 10-substituted 5,5-dioxo-5,10-dihydro[1,2,4]triazolo[1,5-b][1,2,4] benzothiadiazine 2-phenoxy benzothiazole derivatives (16a-c) were synthesized and their structures confirmed by NMR, MS, IR and X-ray crystallography. These compounds were evaluated for their cytotoxicity against 60 human tumour cell lines. One of the synthesized compounds (5b) exhibited significant inhibitory activity against most of the cell lines and has been further evaluated for the five-dose screening.
authors: Ahmed
authors: A
authors: Kamal
authors: M Naseer A
authors: MN
authors: Khan
authors: K Srinivasa
authors: KS
authors: Reddy
authors: Y V V
authors: YV
authors: Srikanth
authors: B
authors: B
authors: Sridhar
mesh_terms: D001391:Azo Compounds / Q000138:chemical synthesis* / Q000737:chemistry / Q000633:toxicity*; D001581:Benzothiadiazines / Q000737:chemistry*; D052160:Benzothiazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000633:toxicity*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D018360:Crystallography, X-Ray; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D008958:Models, Molecular; D015394:Molecular Structure; D013329:Structure-Activity Relationship
chemical_list: D001391:Azo Compounds; D001581:Benzothiadiazines; D052160:Benzothiazoles; C005465:benzothiazole