DNA sequence selective adenine alkylation, mechanism of adduct repair, and in vivo antitumor activity of the novel achiral seco-amino-cyclopropylbenz[e]indolone analogue of duocarmycin AS-I-145.
AS-I-145 is a novel achiral seco-amino-cyclopropylbenz[e]indolone (seco-amino-CBI) analogue of duocarmycin that has evolved from an alternative strategy of designing CC-1065/duocarmycin agents lacking the characteristic chiral center of the natural agents. The sequence specificity of this compound was assessed by a Taq polymerase stop assay, identifying the sites of covalent modification on plasmid DNA. The adenine-N3 adducts were confirmed at AT-rich sequences using a thermally induced stran...Expand abstract
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