Novel 5,7-disubstituted 6-amino-5H-pyrrolo[3,2-b]pyrazine-2,3-dicarbonitriles, the promising protein kinase inhibitors with antiproliferative activity
摘要:
New derivatives of pyrrolo[2,3-b]pyrazine were synthesized and tested on a panel of cultured human tumor cell lines. It was found that 6-amino-5-(3-chlorophenylamino)-7-(1-methyl-1H-benzo[dlimidazol-2-yl]-5H-pyrrolo[3,2-b]pyrazine-2,3-dicarbonitrile (4j) exhibited a significant antiproliferative activity: GI50 for cell lines RXF 393 (renal cancer) and BT-549 (breast cancer) were 14 and 82 nM, respectively. To identify possible molecular targets, docking of the most active compounds into the active sites of cyclin-dependent kinases was performed. Molecular modeling of the inhibitor-enzyme complexes showed the differences in the binding poses of new pyrrolo[2,3-b]pyrazine derivatives in the kinase ATP-binding site compared with known pyrrolo[2,3-b]pyrazine inhibitors called aloisines. The patterns of drug kinase interactions correlated well with antiproliferative activities of novel derivatives. Key interactions and binding mode of docked compounds are discussed. (c) 2006 Elsevier SAS. All rights reserved.
Interaction of 2-chloroquinoline- 3-carbaldehydes with 2-hetaryl- acetonitriles
作者:T. A. Volovnenko、A. V. Tarasov、R. I. Zubatyuk、O. V. Shishkin、A. V. Turov、Yu. M. Volovenko
DOI:10.1007/s10593-010-0456-7
日期:2009.12
shown that products of condensation at the methylene group are formed under mild conditions. Carrying out the reaction under more forcing conditions leads to an intramolecular nucleophilic substitution of the chlorine atom and the formation of cyclic ionic compounds (in the case of N-substituted hetarylacetonitriles), which are subsequently dealkylated.
The invention provides compounds represented by the structural formula (1):
wherein R1, R2, R3 and R4 are as defined in the claims. The compounds are inhibitors of nucleases, and are useful in particular in a method of treatment and/or prevention of proliferative diseases, neurodegenerative diseases, and other genomic instability associated diseases.