作者:Lisa Dalla Via、Ornella Gia、Sergio Caffieri、Aída N. García-Argáez、Elías Quezada、Eugenio Uriarte
DOI:10.1016/j.bmc.2012.03.071
日期:2012.6
The synthesis of 8,9,10,11-tetrahydro-5-(3-dimethylaminopropoxy)-4-methylbenzofuro[2,3-h] coumarin (5) is described. The new compound showed the ability to inhibit cell growth both upon UVA irradiation and in the dark. The investigation on the mechanism of action highlighted the capacity of 5 to covalently photoadd to thymine, as demonstrated by the isolation and characterization of the 4',5'-monoadduct. Furthermore, in the ground state 5 interferes with the topoisomerase II relaxation activity, suggesting that this enzyme could constitute a molecular target responsible for the dark antiproliferative effect. (C) 2012 Elsevier Ltd. All rights reserved.