Synthesis, structural characterization, and in vitro antitumor activity of novel N-(6-chloro-1,1-dioxo-1,4,2-benzodithiazin-3-yl)arylsulfonamides |
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Authors: | Brzozowski Zdzis?aw Saczewski Franciszek S?awiński Jaros?aw Bednarski Patrick J Grünert Renate Gdaniec Maria |
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Institution: | Department of Chemical Technology of Drugs, Medical University of Gdańsk, 80-416 Gdańsk, Poland. |
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Abstract: | A new series of N-(6-chloro-1,1-dioxo-1,4,2-benzodithiazin-3-yl)arylsulfonamides 23-48 have been synthesized as potential anticancer agents. All compounds were screened for their cytotoxic activity against six human tumor cell lines. The selected compounds 23-27, 30, 31, 33, 35, 38, 42, 45, and 46 were further tested at the US National Cancer Institute for their in vitro activities against a panel of 53-59 human tumor cell lines. The compounds 23-26, 30, 31, 33, 38, 42, 45, and 46 showed 50% growth inhibitory activity in low micromolar concentration (GI(50)=0.03-4.9 microM) against one or more human tumor cell lines (Table 3). The prominent compound with remarkable activity (GI(50)=0.03 microM, TGI=1.3 microM) and selectivity toward melanoma UACC-257 cell line was N-(6-chloro-7-cyano-1,1-dioxo-1,4,2-benzodithiazin-3-yl)-N-(phenyl)-5-bromothiophene-2-sulfonamide 46. |
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