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910538

Sigma-Aldrich

(S,R,S)-AHPC-PEG2-butyl alkyne

≥95%

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Synonym(s):
(2S,4R)-1-((S)-3,3-Dimethyl-2-(2-(2-(oct-7-yn-1-yloxy)ethoxy)acetamido)butanoyl)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide, (S,R,S)-AHPC-2-2-6-alkyne, Crosslinker–E3 Ligase ligand conjugate, Protein degrader building block for PROTAC® research, Template for synthesis of targeted protein degrader, VH032 conjugate
Empirical Formula (Hill Notation):
C34H48N4O6S
Molecular Weight:
640.83

Assay

≥95%

form

(Liquid or Semi-solid or Paste or Solid)

reaction suitability

reaction type: click chemistry
reagent type: ligand-linker conjugate

functional group

alkyne

storage temp.

2-8°C

SMILES string

O=C(N[C@H](C(N1[C@H](C(NCC2=CC=C(C3=C(C)N=CS3)C=C2)=O)C[C@@H](O)C1)=O)C(C)(C)C)COCCOCCCCCCC#C

Application

Protein degrader builiding block (S,R,S)-AHPC-PEG2-butyl alkyne enables the synthesis of molecules for targeted protein degradation and PROTAC (proteolysis-targeting chimeras) technology. This conjugate contains a von Hippel–Lindau (VHL)-recruiting ligand, a linker with both hydrophobic and hydrophilic moieties, and a pendant alkyne for click chemistry with an azide on the target ligand. Because even slight alterations in ligands and crosslinkers can affect ternary complex formation between the target, E3 ligase, and PROTAC, many analogs are prepared to screen for optimal target degradation. When used with other protein degrader building blocks with a pendant alkyne group, parallel synthesis can be used to more quickly generate PROTAC libraries that feature variation in crosslinker length, composition, and E3 ligase ligand.

Legal Information

PROTAC is a registered trademark of Arvinas Operations, Inc., and is used under license

related product

Product No.
Description
Pricing

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(C)

Not applicable

Regulatory Information

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Momar Toure et al.
Angewandte Chemie (International ed. in English), 55(6), 1966-1973 (2016-01-13)
The current inhibitor-based approach to therapeutics has inherent limitations owing to its occupancy-based model: 1) there is a need to maintain high systemic exposure to ensure sufficient in vivo inhibition, 2) high in vivo concentrations bring potential for off-target side effects, and 3) there is
Momar Toure et al.
Angewandte Chemie (International ed. in English), 55(6), 1966-1973 (2016-01-13)
The current inhibitor-based approach to therapeutics has inherent limitations owing to its occupancy-based model: 1) there is a need to maintain high systemic exposure to ensure sufficient in vivo inhibition, 2) high in vivo concentrations bring potential for off-target side effects, and 3) there is
Kedra Cyrus et al.
Molecular bioSystems, 7(2), 359-364 (2010-10-06)
Conventional genetic approaches have provided a powerful tool in the study of proteins. However, these techniques often preclude selective manipulation of temporal and spatial protein functions, which is crucial for the investigation of dynamic cellular processes. To overcome these limitations
Philipp M Cromm et al.
Cell chemical biology, 24(9), 1181-1190 (2017-06-27)
Traditional pharmaceutical drug discovery is almost exclusively focused on directly controlling protein activity to cure diseases. Modulators of protein activity, especially inhibitors, are developed and applied at high concentration to achieve maximal effects. Thereby, reduced bioavailability and off-target effects can

Articles

Protein Degrader Building Blocks are a collection of crosslinker-E3 ligand conjugates with a pendant functional group for covalent linkage to a target ligand.

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