Mapping the ATP-binding domain of DNA-dependent protein kinase (DNA-PK) with coumarin- and isocoumarin-derived inhibitors
- Bioorg Med Chem Lett. 2010 Jun 15;20(12):3649-53. doi: 10.1016/j.bmcl.2010.04.102.
- 1. Northern Institute for Cancer Research, School of Chemistry, Newcastle University, Newcastle Upon Tyne, UK.
Replacement of the core heterocycle of a defined series of chromen-4-one DNA-PK inhibitors by the isomeric chromen-2-one (coumarin) and isochromen-1-one (isocoumarin) scaffolds was investigated. Structure-activity relationships for DNA-PK inhibition were broadly consistent, albeit with a reduction of potency compared with the parent chromenone.