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    Sinteza, antitumorsko i citostatsko djelovanje derivata 6H-indolo[2,3-b]kinoksalina

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    Various 6-aralkyl-9-substituted-6H-indolo[2,3-b]quinoxalines were synthesized by reaction of 1,5-disubstituted 2,3-dioxo-2,3-dihydroindole with orthophenylene diamine. Appreciable anticancer activity of compounds 5b, 5d, 5g and 5l at various cell lines among 59 human tumor cell panels was observed. All the synthesized compounds were evaluated for cytostatic activity against human Molt 4/C8 and CEM T-lymphocytes as well as for murine L1210 leukemia cells. Compound 5h exhibited an IC50 of 71 μmol mL1 against Molt 4/C8 and 117 μmol mL1 against CEM compared to melphalan 3.2 μmol mL1 and 2.5 μmol mL1, respectively. The IC50 for compound 7i against L1210 was 7.2 μmol mL1 compared to melphalan 2.1 μmol mL1.Reakcijom 1,5-disupstituiranih 2,3-diokso-2,3-dihidroindola s ortofenilen diaminom sintetizirani su različiti 6-aralkil-9-supstituirani-6H-indolo[2,3-b]kinoksalini. Spojevi 5b, 5d, 5g i 5l pokazali su značajno antitumorsko djelovanje na 59 humanih tumorskih stanica. Svi sintetizirani spojevi ispitani su na citostatsko djelovanje na stanične linije Molt 4/C8 i CEM T-limfocite, te na murin L1210 stanice leukemije. IC50 za spoj 5h je 71 μmol mL1 na staničnu liniju Molt 4/C8 i 117 μmol mL1 na CEM, dok su vrijednosti za melfalan 3,2, odnosno 2,5 μmol mL1. IC50 spoja 7i na stanice L1210 je 7,2 μmol mL1, dok je za melfalan 2,1 μmol mL1
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