Mechanistic Evaluations of the Effects of Auranofin Triethylphosphine Replacement with a Trimethylphosphite Moiety - Université de Pau et des Pays de l'Adour Accéder directement au contenu
Article Dans Une Revue Inorganic Chemistry Année : 2023

Mechanistic Evaluations of the Effects of Auranofin Triethylphosphine Replacement with a Trimethylphosphite Moiety

Iogann Tolbatov
Ester Giorgi
  • Fonction : Auteur
Paulina Pisarek
Alessandro Marrone
Diego Tesauro
Tiziano Marzo

Résumé

Auranofin, a gold(I)-based complex, is under clinical trials for application as an anticancer agent for the treatment of nonsmall-cell lung cancer and ovarian cancer. In the past years, different derivatives have been developed, modifying gold linear ligands in the search for new gold complexes endowed with a better pharmacological profile. Recently, a panel of four gold(I) complexes, inspired by the clinically established compound auranofin, was reported by our research group. As described, all compounds possess an [Au{P(OMe) 3 }] + cationic moiety, in which the triethylphosphine of the parent compound auranofin was replaced with an oxygen-rich trimethylphosphite ligand. The gold(I) linear coordination geometry was complemented by Cl − , Br − , I − , and the auranofin-like thioglucose tetraacetate ligand. As previously reported, despite their close similarity to auranofin, the panel compounds exhibited some peculiar and distinctive features, such as lower log P values which can induce relevant differences in the overall pharmacokinetic profiles. To get better insight into the P−Au strength and stability, an extensive study was carried out for relevant biological models, including three different vasopressin peptide analogues and cysteine, using 31 P NMR and LC-ESI-MS. A DFT computational study was also carried out for a better understanding of the theoretical fundamentals of the disclosed differences with regard to triethylphosphine parent compounds.
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hal-04170599 , version 1 (25-07-2023)

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Luisa Ronga, Iogann Tolbatov, Ester Giorgi, Paulina Pisarek, Christine Enjalbal, et al.. Mechanistic Evaluations of the Effects of Auranofin Triethylphosphine Replacement with a Trimethylphosphite Moiety. Inorganic Chemistry, 2023, 62, pp.10389 - 10396. ⟨10.1021/acs.inorgchem.3c01280⟩. ⟨hal-04170599⟩
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