Dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-4-ones As a New Class of CK2 Inhibitors

Overview

Journal Mol Divers

Date 2018 May 31

PMID 29845490

Citations 1

Authors

Mykola V Protopopov

Olga V Ostrynska

Sergiy A Starosyla

Maria A Vodolazhenko

Svetlana M Sirko

Nikolay Yu Gorobets

Volodymyr Bdzhola

Sergey M Desenko

Sergiy M Yarmoluk

Affiliations

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Abstract

Identification of new small molecules inhibiting protein kinase CK2 is highly required for the study of this protein's functions in cell and for the further development of novel pharmaceuticals against a variety of disorders associated with CK2 activity. In this article, a virtual screening of a random small-molecule library was performed and 12 compounds were initially selected for biochemical tests toward CK2. Among them, the most active compound 1 ([Formula: see text]) belonged to dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-4-ones. The complex of this compound with CK2 was analyzed, and key ligand-enzyme interactions were determined. Then, a virtual screening of 231 dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-4-one derivatives was performed and 37 compounds were chosen for in vitro testing. It was found that 32 compounds inhibit CK2 with [Formula: see text] values from 2.5 to 7.5 [Formula: see text]. These results demonstrate that dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-4-one is a novel class of CK2 inhibitors.

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