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A series of naphthoquinones 2,3-disubstituted with chlorine and oxyethylene groups have been prepared from 2,3-dichloro- and 2,3-dimethoxy-1,4-naphthoquinone. The members of these series were tested on normal human fibroblasts and on a panel of four human cancer cell lines. Antitumor activities, which were in the range of IC 50 1.3–89.5μM, discussed in terms of LUMO energy, lipophilicity and...
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