sb-218078

SB-218078 is less potently inhibits Cdc2 (IC50: 250 nM) and PKC (IC50: 1000 nM). SB-218078 is a potent, ATP-competitive, and cell-permeable checkpoint kinase 1 inhibitor that inhibits Chk1 phosphorylation of cdc25C (IC50: 15 nM).