Synthesis and evaluation of substituted benzoisoquinolinones as potent inhibitors of Chk1 kinase.
Garbaccio, R.M., Huang, S., Tasber, E.S., Fraley, M.E., Yan, Y., Munshi, S., Ikuta, M., Kuo, L., Kreatsoulas, C., Stirdivant, S., Drakas, B., Rickert, K., Walsh, E.S., Hamilton, K.A., Buser, C.A., Hardwick, J., Mao, X., Beck, S.C., Abrams, M.T., Tao, W., Lobell, R., Sepp-Lorenzino, L., Hartman, G.D.(2007) Bioorg Med Chem Lett 17: 6280-6285
- PubMed: 17900896 
- DOI: 10.1016/j.bmcl.2007.09.007
- Primary Citation of Related Structures:  
2R0U - PubMed Abstract: 
From HTS lead 1, a novel benzoisoquinolinone class of ATP-competitive Chk1 inhibitors was devised and synthesized via a photochemical route. Using X-ray crystallography as a guide, potency was rapidly enhanced through the installation of a tethered basic amine designed to interact with an acidic residue (Glu91) in the enzyme pocket ...