K-Ras ligand-Linker Conjugate 4 is a chemical compound that combines a ligand for K-Ras recruiting moiety with a PROTAC linker. This linker is responsible for recruiting E3 ligases such as VHL, CRBN, MDM2, and IAP. The compound has the potential to be used in the synthesis of PROTAC K-Ras Degrader-1, a powerful degrader of K-Ras that has been shown to exhibit a degradation efficacy of ≥70% in SW1573 cells[1].
Desmorpholinyl Quizartinib-PEG2-COOH is a compound featuring an FLT-3 ligand and a PEG-based PROTAC linker. It is employed in the synthesis of PROTAC FLT-3 degrader 1, which serves as a degrader for the FLT-3 internal tandem duplication (ITD) through PROTAC technology. The degrader exhibits an IC50 of 0.6 nM.