Cdc7 Kinase Inhibitors: 5-Heteroaryl-3-Carboxamido-2-Aryl Pyrroles as Potential Antitumor Agents. 1. Lead Finding
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- 作者：Maria Menichincheri ; Clara Albanese ; Cristina Alli ; Dario Ballinari ; Alberto Bargiotti ; Marina Caldarelli ; Antonella Ciavolella ; Alessandra Cirla ; Maristella Colombo ; Francesco Colotta ; Valter Croci
- 刊名：Journal of Medicinal Chemistry
- 出版年：2010
- 出版时间：October 28, 2010
- 年：2010
- 卷：53
- 期：20
- 页码：7296-7315
- 全文大小：1316K
- 年卷期：v.53,no.20(October 28, 2010)
- ISSN：1520-4804
文摘
Cdc7 serine/threonine kinase is a key regulator of DNA synthesis in eukaryotic organisms. Cdc7 inhibition through siRNA or prototype small molecules causes p53 independent apoptosis in tumor cells while reversibly arresting cell cycle progression in primary fibroblasts. This implies that Cdc7 kinase could be considered a potential target for anticancer therapy. We previously reported that pyrrolopyridinones (e.g., 1) are potent and selective inhibitors of Cdc7 kinase, with good cellular potency and in vitro ADME properties but with suboptimal pharmacokinetic profiles. Here we report on a new chemical class of 5-heteroaryl-3-carboxamido-2-substituted pyrroles (1A) that offers advantages of chemistry diversification and synthetic simplification. This work led to the identification of compound 18, with biochemical data and ADME profile similar to those of compound 1 but characterized by superior efficacy in an in vivo model. Derivative 18 represents a new lead compound worthy of further investigation toward the ultimate goal of identifying a clinical candidate.