Abemaciclib metabolite M18 (LSN3106729) hydrochloride, the metabolite of Abemaciclib , is a CDK inhibitor with antitumor activity. Abemaciclib metabolite M18 hydrochloride and a CRBN ligand have been used to design PROTAC CDK4/6 degrader[1].
[1]. Edward S. Kim, et al. Abemaciclib in Combination with Single-Agent Options in Patients with Stage IV Non-Small Cell Lung Cancer: A Phase Ib Study.
[2]. Nathanael Gray, et al. Degradation of cyclin-dependent kinase 4/6 (cdk4/6) by conjugation of cdk4/6 inhibitors with e3 ligase ligand and methods of use. WO2017185031A1.
















