chk1 in 4

CHK1-IN-4 is a potent inhibitor of checkpoint kinase 1 (chk1) and potently inhibits chk1 phosphorylation in the tumor cells with anti-tumor activity.

CHK1-IN-4 hydrochloride 是有效的checkpoint kinase 1 (chk1) 抑制剂，对肿瘤细胞中 chk1 磷酸化具有有效的抑制作用。CHK1-IN-4 hydrochloride 显示出抗肿瘤活性。

FLT3 CHK-IN-1（Compound 18）为FLT3 CHK1双重抑制剂，其对c-KIT的选择性超1700倍，同时显著降低对hERG的亲和力，IC50为58.4 μM。在MV-4-11细胞接种小鼠异种移植模型中有效抑制肿瘤生长。