Thalidomide-O-amido-PEG4-azide Thalidomide-O-amido-PEG4-C2-NH2 hydrochloride N-(4-azidobutyl)-2-((2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindolin-4-yl)oxy)acetamide E3 Ligase Ligand-Linker Conjugates 20 E3 Ligase Ligand-Linker Conjugates 24 (TFA) Thalidomide-linker 15 Thalidomide-linker 13 E3 Ligase Ligand-Linker Conjugates 21 E3 Ligase Ligand-Linker Conjugates 19 Thalidomide-O-amido-C4-NH2 hydrochloride Thalidomide-O-amido-PEG3-C2-NH2 hydrochloride Thalidomide-O-amido-C8-NH2 hydrochloride Thalidomide-O-amido-PEG1-(C1-?PEG)2-C2-NH2 N-(3-(2-(2-(3-Aminopropoxy)ethoxy)ethoxy)propyl)-2-((2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindolin-4-yl)oxy)acetamide Trifluoroacetate Acetamide, N-(5-aminopentyl)-2-[[2-(2,6-dioxo-3-piperidinyl)-2,3-dihydro-1,3-dioxo-1H-isoindol-4-yl]oxy]- Thalidomide-O-C10-NH2 hydrochloride 1H-Isoindole-1,3(2H)-dione, 4-[(8-aminooctyl)oxy]-2-(2,6-dioxo-3-piperidinyl)-, hydrochloride (1:1) Thalidomide-O-PEG2-azide