Structure–activity relationship study of acridine analogs as haspin and DYRK2 kinase inhibitors
摘要:
Haspin is a serine/threonine kinase required for completion of normal mitosis that is highly expressed during cell proliferation, including in a number of neoplasms. Consequently, it has emerged as a potential therapeutic target in oncology. A high throughput screen of approximately 140,000 compounds identified an acridine analog as a potent haspin kinase inhibitor. Profiling against a panel of 270 kinases revealed that the compound also exhibited potent inhibitory activity for DYRK2, another serine/threonine kinase. An optimization study of the acridine series revealed that the structure-activity relationship (SAR) of the acridine series for haspin and DYRK2 inhibition had many similarities. However, several structural differences were noted that allowed generation of a potent haspin kinase inhibitor (33, IC(50) <60 nM) with 180fold selectivity over DYRK2. In addition, a moderately potent DYRK2 inhibitor (41, IC(50) <400 nM) with a 5.4-fold selectivity over haspin was also identified. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis and preliminary cytotoxic activity of dimethoxy-acridines and dimethoxynitroacridines
作者:A. Monge、F. J. Martínez-Crespo、L. Santamaría、S. Narro、A. López De Ceráin、E. Hamilton、A. J. Barker
DOI:10.1002/jhet.5570310628
日期:1994.11
The preparation of a series of dimethoxy and dimethoxynitroacridines and their activity in oxic and hypoxic cells is reported. Anthranilic acids 1,4,14 were prepared according to the Ullmann condensation. 9-chloroacridines were obtained from anthranilic acids by refluxing in phosphorus oxychloride. The synthesis of two new acridine dimers 9,10 is described. Nitration of 9-chloro-2,4-dimethoxyacridine