Dalla Via L, Gia O, Marciani Magno S, Braga A, González-Gómez JC, Pérez-Montoto LG, Uriarte E. Pyridazinopsoralens of wide chemotherapeutic interest.
Bioorg Med Chem 2010;
18:5708-14. [PMID:
20615713 DOI:
10.1016/j.bmc.2010.06.006]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2010] [Revised: 06/03/2010] [Accepted: 06/04/2010] [Indexed: 11/18/2022]
Abstract
The synthesis of new 6,10-dimethylpyridazino[4,5-h]psoralens, carrying no (4), one (5), or two (6-9) dialkylaminoalkylcarboxamide side chains on the pyridazine ring is reported. All compounds exert a significant photoantiproliferative activity. Moreover, the derivatives characterised by the protonable side chains show a notable cytotoxicity in the dark. The investigation on the mechanism of action demonstrated the capacity to intercalate into DNA base pairs and to inhibit the relaxation activity of topoisomerase II.
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