Abstract
Two series of diaziridinyl quinone isoxazole derivatives were prepared and evaluated for their cytotoxic activity against MCF7, HeLa, BT549, A549 and HEK293 cell lines and interaction with tubulin. Compounds (6A-M: ) showed promising activity against all the 5 human cancer cell lines. Compounds 6A: , 6E: and 6 M: were potent [IC50 ranging between 2.21 µg to 2.87 µg] on ER-positive MCF7 cell line similar to the commercially available drug molecule Doxorubicin. The results from docking models are in consistent with the experimental values which demonstrated the favourable binding modes of compounds 6A-M: to the interface of α- and β-tubulin dimer.
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