Propargyl-PEG8-NH2

• CAT Number: I014643
• CAS Number: 1196732-52-1
• Molecular Formula: C19H37NO8
• Molecular Weight: 407.50
• Purity: ≥95%
• Synonyms: 2-[2-[2-[2-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanamine
• InChI: InChI=1S/C19H37NO8/c1-2-4-21-6-8-23-10-12-25-14-16-27-18-19-28-17-15-26-13-11-24-9-7-22-5-3-20/h1H,3-20H2
• InChIKey: HJYYOUVXTIUMEJ-UHFFFAOYSA-N
• SMILES: C#CCOCCOCCOCCOCCOCCOCCOCCOCCN

Propargyl-PEG8-NH2 (compound 3b) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG8-NH2 is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG8-NH2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker.

Reference

[1]. Genady AR, et al. Preparation and Evaluation of Radiolabeled Antibody Recruiting Small Molecules That TargetProstate-Specific Membrane Antigen for Combined Radiotherapy and Immunotherapy. J Med Chem. 2016 Mar 24;59(6):2660-73.
 [Content Brief]