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Solid-phase synthesis of oxytocin using iodotrichlorosilane as Boc deprotecting agent
K M Sivanandaiah1, V V Sureshbabu, S C Shankaramma
1Department of Studies in Chemistry, Central College, Bangalore University, Karnataka, India.
International Journal of Peptide and Protein Research
|April 1, 1995
Summary
A new neutral reagent, silicon tetrachloride/sodium iodide, efficiently removes tert-butoxycarbonyl groups in peptide synthesis. This method simplifies solid-phase synthesis, notably for the pituitary hormone oxytocin.
Area of Science:
- Organic Chemistry
- Biochemistry
- Peptide Synthesis
Background:
- Solid-phase peptide synthesis (SPPS) is a crucial technique in biochemistry.
- The tert-butoxycarbonyl (Boc) group is a common protecting group in SPPS.
- Efficient deprotection methods are vital for successful peptide synthesis.
Purpose of the Study:
- To introduce a novel, neutral reagent for tert-butoxycarbonyl (Boc) group deprotection.
- To evaluate the efficiency and convenience of this new method in solid-phase peptide synthesis.
- To demonstrate the applicability of the method in synthesizing a biologically relevant peptide.
Main Methods:
- Utilized silicon tetrachloride/sodium iodide (iodotrichlorosilane) as a neutral deprotection reagent.
- Applied the reagent during the solid-phase synthesis of peptides.
- Specifically employed the method in the synthesis of oxytocin.
Main Results:
- The tert-butoxycarbonyl (Boc) group was deprotected conveniently and efficiently.
- Silicon tetrachloride/sodium iodide proved to be a simple and rapid deprotection reagent.
- The method was successfully applied to the solid-phase synthesis of oxytocin.
Conclusions:
- Silicon tetrachloride/sodium iodide offers an effective alternative for Boc deprotection in SPPS.
- This neutral reagent simplifies and accelerates peptide synthesis protocols.
- The successful synthesis of oxytocin highlights the method's practical utility.