Dialkylaminoalkylindolonaphthyridines as potential antitumour agents: synthesis, cytotoxicity and DNA binding properties
作者:Lisa Dalla Via、Ornella Gia、Sebastiano Marciani Magno、Antonio Da Settimo、Giampaolo Primofiore、Federico Da Settimo、Francesca Simorini、Anna Maria Marini
DOI:10.1016/s0223-5234(02)01372-7
日期:2002.6
The synthesis of new planar derivatives characterised by the presence of an indolonaphthyridine nucleus, carrying a dimethylaminoethyl or a dimethylaminopropyl side chain is reported. The antiproliferative activity of the new products was tested by means of an in vitro assay on human tumour cell lines (HL-60 and HeLa). A number of compounds (1a-d, 1h) showed IC50 values comparable to that obtained with the well-known drug ellipticine on the HL-60 cell line. The interaction with DNA was also investigated. Linear flow dichroism measurements allowed us to understand the interaction geometry. The thermodynamic parameters of the binding process, i.e. intrinsic binding constant and exclusion parameter, were determined by fluorimetric titration. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
β-Carbolinedione Derivatives as Topoisomerase I Inhibitors
Pyrrolo[3,4-c]-beta-carbolinedione dimers 5-14 were synthesized from furo[3,4-c]-beta-carbolinediones and diamines by solvent-free TaCl5/silica catalyzed reaction under microwave irradiation. The inhibitory property of these target compounds, the starting materials 2, 31, 32, and the N-alkylated pyrrolo[3,4-c]-beta-carbolinediones 16, 17, 20-30 was tested against the relaxation of supercoiled pRB322 DNA by calf thymus topoisomerases I and II. Some of these compounds, especially 7 and 23 proved to be selective inhibitors of topoisomerase I.
PROCTOR G. R.; SMITH F. J., J. CHEM. RES. SYNOP., 1980, NO 9, 286-287, (M 3544-3566)
The application relates to a compound of Formula (I) or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, which degrades HuR, a pharmaceutical composition comprising a compound of Formula (I), and a method of treating or preventing a disease in which HuR plays a role.