compound-401

Compound 401 (2-morpholino-4H-pyrimido[2,1-a]isoquinolin-4-one) is a synthetic DNA-PK inhibitor (IC50 = 0.28 μM) that also targets mTOR but not PI3K.

WQ-C-401 is an orally active inhibitor of the platelet-derived growth factor receptor (PDGFR). It inhibits cell proliferation by blocking PDGFR auto-phosphorylation in a concentration-dependent manner, with EC50 values of 3.5 nM for PDGFRαY849 and 5.8 nM for PDGFRβY1021. Additionally, WQ-C-401 suppresses the proliferation and migration of PASMCs by inhibiting PDGF-BB-induced phosphorylation of ERK1 2, reduces collagen I synthesis, and increases α-SMA expression, thereby preventing pulmonary vascular remodeling. This compound shows promise for research in the field of pulmonary arterial hypertension.

Casein kinase1δ-IN-13 (compound 401) is an inhibitor of Casein kinase1δ. It is utilized in the research of neurodegenerative diseases.