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Lookup NU author(s): Dr Othman AlmusaimiORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Following the successful introduction of two benign solvents for cleaving protected acid peptide fragments from 2-chlorotrityl chloride (2-CTC) resin, there is a need to green the cleavage process for obtaining protected peptide amide fragments. In this work, p-xylene and toluene are introduced as greener alternates to dichloromethane (DCM) for preparing protected peptide amide fragments from a Sieber amide resin. The N-dealkylation is a demanding chemical reaction, requiring that the cleavage protocol be optimised to ensure complete cleavage from the resin. After a 30 min reaction time, only 66 % of the final peptide product was retrieved even with the conventional dichloromethane solvent. Therefore, 120 min was considered sufficient to fully cleave the peptide from the Sieber amide resin. This work reaffirms the fact that greening strategies are far from detrimental, with green alternatives often outperforming their replaced counterparts.
Author(s): Al Musaimi O, Gavva V, Williams DR
Publication type: Article
Publication status: Published
Journal: ChemistryOpen
Year: 2022
Volume: 11
Issue: 12
Online publication date: 23/12/2022
Acceptance date: 14/12/2022
Date deposited: 27/02/2024
ISSN (electronic): 2191-1363
Publisher: Wiley
URL: https://doi.org/10.1002/open.202200236
DOI: 10.1002/open.202200236
Data Access Statement: The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.
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