NCIt definition : A benzoyl mustard derivative of the antiviral agent distamycin A with potential antineoplastic
activity. Tallimustine selectively binds to A-T rich regions in the minor groove of
DNA and alkylates at the N3 position of adenine in a highly sequence-specific manner.
This prevents DNA replication, inhibits cellular proliferation and triggers apoptosis.
Moreover, unlike other clinical nitrogen mustards, tallimustine does not carry out
guanine-N7 alkylation in the major groove of DNA, which may lead to a high selectivity
of action.;