ROR1-IN-1

ROR1-IN-1 (Compound 19h) is an inhibitor of receptor tyrosine kinase-like orphan receptor 1 (ROR1) with a Ki of 0.10 μM. It inhibits the proliferation of cancer cell lines H1975, A549, and MDA-MB-231, with IC50 values of 0.36 μM, 1.37 μM, and 0.47 μM, respectively. In mice, ROR1-IN-1 demonstrates antitumor efficacy and exhibits favorable pharmacokinetic properties in a rat model.