Discovery of potent and selective CDK8 inhibitors through FBDD approach

  • Bioorg Med Chem Lett. 2017 Sep 15;27(18):4488-4492. doi: 10.1016/j.bmcl.2017.07.080.
Xingchun Han  1 Min Jiang  2 Chengang Zhou  2 Zheng Zhou  3 Zhiheng Xu  3 Lisha Wang  3 Alexander V Mayweg  2 Rui Niu  4 Tai-Guang Jin  4 Song Yang  5
Affiliations
  • 1. Medicinal Chemistry, Roche Innovation Center Shanghai, Bldg 5, 720 Cailun Road, Shanghai 201203, China. Electronic address: [email protected].
  • 2. Medicinal Chemistry, Roche Innovation Center Shanghai, Bldg 5, 720 Cailun Road, Shanghai 201203, China.
  • 3. Chemical Biology, Roche Innovation Center Shanghai, Bldg 5, 720 Cailun Road, Shanghai 201203, China.
  • 4. Discovery Oncology, Roche Innovation Center Shanghai, Bldg 5, 720 Cailun Road, Shanghai 201203, China.
  • 5. Medicinal Chemistry, Roche Innovation Center Shanghai, Bldg 5, 720 Cailun Road, Shanghai 201203, China. Electronic address: [email protected].
Abstract

A fragment library screen was carried out to identify starting points for novel CDK8 inhibitors. Optimization of a fragment hit guided by co-crystal structures led to identification of a novel series of potent CDK8 inhibitors which are highly ligand efficient, kinase selective and cellular active. Compound 16 was progressed to a mouse pharmacokinetic study and showed good oral bioavailability.

Keywords
CDK8; Fragment-based drug discovery (FBDD); Inhibitor.
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