A Neglected Challenge in the Analysis of Active Pharmaceutical Substances with Aldehyde Functional Group in Aqueous Matrices

AuthorAzadeh Nasirien
AuthorShaya Mokhtarien
AuthorBahram Daraeien
AuthorHassan Yazdanpanahen
AuthorMehrdad Faizien
AuthorFarzad Kobarfarden
OrcidMehrdad Faizi [0000-0002-6896-838X]en
OrcidFarzad Kobarfard [0000-0001-6679-3275]en
Issued Date2022-12-31en
AbstractAldehydes are compounds that are widely used and popular in organic synthesis due to their high reactivity. This advantage is a disadvantage in medicinal chemistry. Due to the ability of aldehydes to participate in nucleophilic reactions (especially in aqueous biological media) and access to nucleophiles such as amino acids and nucleic acids, drugs with aldehyde functional groups are always used with caution and carefully quantified in biological fluids. Our experience in working on biologically active aldehydes indicates the transformation of these groups of compounds in aqueous or alcoholic solution and thus the failure of analytical methods for their accurate monitoring in such media. Both mass spectrometry and Proton nuclear magnetic resonance spectroscopic findings indicate the reaction of spiramycin with water molecules in an aqueous solution, resulting in the conversion of spiramycin to a new molecule with 18 mass unit difference and thus, the residue amount which is measured and reported based on a mass spectrometries method does not show the correct amount of spiramycin in these samples.en
DOIhttps://doi.org/10.5812/ijpr-127036en
KeywordAldehydeen
KeywordLC-MS/MSen
KeywordMRMen
KeywordSolventen
KeywordSpiramycinen
KeywordNMRen
PublisherBrieflandsen
TitleA Neglected Challenge in the Analysis of Active Pharmaceutical Substances with Aldehyde Functional Group in Aqueous Matricesen
TypeRapid Communicationen

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