Thalidomide-O-PEG4-Propargyl is a thalidomide-based CRBN ligand containing a PEG4 linker and a terminal propargyl (alkyne) group. The thalidomide moiety enables recruitment of cereblon (CRBN), while the PEG4 linker provides flexible spacing for conjugation to a target-binding ligand.
The terminal alkyne makes this compound suitable for click chemistry, particularly copper-catalyzed azide–alkyne cycloaddition (CuAAC), allowing conjugation with azide-functionalized molecules. It can serve as a useful PROTAC building block for the development of targeted protein degraders and other cereblon-recruiting molecules.
IUPAC Name: 4-((3,6,9,12-tetraoxapentadec-14-yn-1-yl)oxy)-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dioneFormula: C₂₄H₂₈N₂O₉Molecular Weight: 488.5 g/mol
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