Mcl-1 inhibitor 3 shows good pharmacokinetic properties and excellent in vivo efficacy without toxicity.Mcl-1 inhibitor 3 is a highly potent and orally activate macrocyclic Mcl-1 inhibitor (Ki= 0.061 nM; IC50=19 nM in an OPM-2 cell viability assay).
Mcl-1 inhibitor 6 is a potent, orally active chemical compound that selectively inhibits the myeloid cell leukemia 1 (Mcl-1) protein, with a high affinity (K d = 0.23 nM) and binding activity (K i = 0.02 μM). This compound exhibits exceptional selectivity over other members of the Bcl-2 family, including Bcl-2, Bcl2A1, Bcl-xL, and Bcl-w (K d >10 μM). Notably, Mcl-1 inhibitor 6 demonstrates strong antitumor activity.