Li, Gaoquan Synthesis and in-vitro biological activity of macrocyclic urea Chk1 inhibitors. [electronic resource] - Bioorganic & medicinal chemistry letters Dec 2007 - 6499-504 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1464-3405 Standard No.: 10.1016/j.bmcl.2007.09.088 doi Subjects--Topical Terms: Cell Line, TumorCheckpoint Kinase 1HeLa CellsHumansMacrocyclic Compounds--chemical synthesisProtein Kinase Inhibitors--chemical synthesisProtein Kinases--metabolismStructure-Activity RelationshipUrea--chemical synthesis