Ultra-clean pure shift NMR with optimal water suppression for analysis of aqueous pharmaceutical samples

27 November 2023, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Pure shift NMR experiments greatly enhance spectral resolution by collapsing multiplet structures into singlets and, with water suppression, can be used for aqueous samples. Here, we combine ultra-clean pure-shift NMR (SAPPHIRE) with two different internally encoded water suppression schemes to achieve optimal performance for small molecule and macrocyclic peptide pharmaceuticals in water and acetonitrile-water mixtures.

Keywords

NMR
Pure shift NMR
Drug Discovery
NMR Methodology
Solvent Suppression
Mixture Analysis

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