N-Mal-N-bis(PEG4-NHS ester)

• CAT Number: I015893
• CAS Number: 2112738-60-8
• Molecular Formula: C₃₇H₅₄N₄O₁₉
• Molecular Weight: 858.84
• Purity: ≥95%
• Target: PROTAC Linkers
• IUPAC Name: (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[2-[2-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethyl-[3-(2,5-dioxopyrrol-1-yl)propanoyl]amino]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
• InChI: InChI=1S/C37H54N4O19/c42-29(7-10-39-30(43)1-2-31(39)44)38(11-15-53-19-23-57-27-25-55-21-17-51-13-8-36(49)59-40-32(45)3-4-33(40)46)12-16-54-20-24-58-28-26-56-22-18-52-14-9-37(50)60-41-34(47)5-6-35(41)48/h1-2H,3-28H2
• InChIKey: OMOYDOIENLEOQM-UHFFFAOYSA-N
• SMILES: C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCN(CCOCCOCCOCCOCCC(=O)ON2C(=O)CCC2=O)C(=O)CCN3C(=O)C=CC3=O

N-Mal-N-bis(PEG4-NHS ester)（Cat No.:I015893） is a type of PEG-based linker used in the synthesis of PROTACs, which are bifunctional molecules that can selectively degrade target proteins. The linker consists of a maleimide group that can react with a cysteine residue on the target protein, and two NHS esters that can react with amino groups on the ligand and recruiting protein, respectively. The PEG4 chains provide flexibility and solubility to the molecule. The use of N-Mal-N-bis(PEG4-NHS ester) as a linker can improve the efficacy and specificity of PROTAC-mediated protein degradation.

Reference

[1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562