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An efficient synthesis of a heterobifunctional coupling agent
Rajarathnam E Reddy1, Yon-Yih Chen, Donald D Johnson
1Core R&D Chemistry Group (Department 09MD, Building AP20), Diagnostics Division, Abbott Laboratories, 100 Abbott Park Road, Abbott Park, Illinois 60064-6016, USA. rajarathnam.reddy@abbott.com
Bioconjugate Chemistry
|September 22, 2005
Summary
A new seven-step synthesis efficiently produces a heterobifunctional coupling agent (12) for protein and enzyme conjugation. This method yields multigram quantities with excellent purity (>99.6%), suitable for analogous compounds.
Area of Science:
- Chemical Synthesis
- Bioconjugation Chemistry
- Organic Chemistry
Background:
- Chemoselective conjugation is vital for modifying proteins and enzymes.
- Heterobifunctional coupling agents facilitate precise biomolecule linking.
- Efficient synthesis of these agents is crucial for research and applications.
Purpose of the Study:
- To develop an efficient synthesis for a specific heterobifunctional coupling agent (12).
- To produce multigram quantities of coupling agent (12) with high purity.
- To establish a reliable method for synthesizing analogous coupling agents.
Main Methods:
- A seven-step synthetic route was employed.
- Starting material: 6-{[(benzyloxy)carbonyl]amino}hexanoic acid (1).
- Purification and purity assessment using reversed-phase HPLC.
Main Results:
- Multigram quantities of coupling agent (12) were successfully synthesized.
- The overall yield was excellent.
- The final product purity consistently exceeded 99.6%.
Conclusions:
- The developed synthetic protocol is efficient and scalable.
- The method consistently yields high-purity coupling agent (12).
- This approach is valuable for preparing diverse analogous coupling agents for bioconjugation.