Propylphosphonic Anhydride (T3P®) as Coupling Reagent for Solid‐Phase Peptide Synthesis. Issue 11 (16th February 2021)

• Record Type: Journal Article
• Authors: Al Musaimi, Othman; Wisdom, Richard; Talbiersky, Peter; De La Torre, Beatriz G.; Albericio, Fernando
• Is Part Of: ChemistrySelect. Volume 6:Issue 11(2021)
• Page Start: 2649
• Page End: 2657
• Publication Date: 2021-02-16
• Subjects: Amidation -- Green chemistry -- Peptides -- SPPS -- T3P®; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.202100123
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Amidation is the predominant reaction within the pharmaceutical setting, and it is attracting greater attention due to the increased demand for therapeutic peptides. The high therapeutic efficacy and safety profile of peptides have placed these molecules in prime position within the pharmaceutical arena, which is reflected by these molecules receiving several approvals from various regulatory agencies each year. In this context, the demand for developing efficient strategies for peptide synthesis has also risen. Although propylphosphonic anhydride (T3P®), which has been recently proposed as a green coupling reagent, has shown good performance in solution, it has never been applied to solid‐phase peptide synthesis (SPPS). Here we test the use of T3P® for SPPS. Satisfactory yields were achieved with a mild activation protocol. Various green solvents were tested and proved to be compatible with this coupling reagent. Several commonly used reagents cause allergic reactions or are susceptible to explosion under certain conditions. To overcome these issues, we propose T3P® as a potential alternative coupling reagent in SPPS. Abstract : T3P has been introduced as a green alternative coupling reagent for SPPS. Efficient conversion yields were obtained when various peptides were synthesized in this work. The driving force for this study is the health and environmental concerns associated with the common coupling reagents in use.