Azido-PEG4-Val-Cit-PAB-OH 是一种可降解 (cleavable) 的含 4 个单元 PEG 的 ADC linker，可用于合成抗体偶联药物 (ADC)。Azido-PEG4-Val-Cit-PAB-OH 还是一种 PROTAC linker，属于 PEG 类，可用于合成 PROTAC 分子。
Azido-PEG4-Val-Cit-PAB-OH is a cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Azido-PEG4-Val-Cit-PAB-OH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].
ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker[1].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[2].
[1]. Dan N, et al. Antibody-Drug Conjugates for Cancer Therapy: Chemistry to Clinical Implications. Pharmaceuticals (Basel). 2018 Apr 9;11(2). pii: E32.
[2]. 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.
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