EGFR ligand-11 is a target protein ligand for EGFR and can be used to synthesize PROTAC MS154 (HY-141640)[1].
References
[1] Meng Cheng, et al. Discovery of Potent and Selective Epidermal Growth Factor Receptor (EGFR) Bifunctional Small-molecule Degraders. J Med Chem. 2020 Feb 13;63(3):1216-1232. DOI:10.1021/acs.jmedchem.9b01566