Fonds de recherche du Centenaire de l'Universite de Fribourg [818]

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Fonds de recherche du Centenaire de l'Universite de Fribourg [818]

Authors

Publications

Efficient Direct Nitrosylation of alpha-Diimine Rhenium Tricarbonyl Complexes to Structurally Nearly Identical Higher Charge Congeners Activable towards Photo-CO Release

Sovari, Sara Nasiri; Kolly, Isabelle; Schindler, Kevin; Cortat, Youri; Liu, Shing-Chi; Crochet, Aurelien; Pavić, Aleksandar; Zobi, Fabio

(MDPI, Basel, 2021)

TY  - JOUR
AU  - Sovari, Sara Nasiri
AU  - Kolly, Isabelle
AU  - Schindler, Kevin
AU  - Cortat, Youri
AU  - Liu, Shing-Chi
AU  - Crochet, Aurelien
AU  - Pavić, Aleksandar
AU  - Zobi, Fabio
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1459
AB  - The reaction of rhenium alpha-diimine (N-N) tricarbonyl complexes with nitrosonium tetrafluoroborate yields the corresponding dicarbonyl-nitrosyl [Re(CO)(2)(NO)(N-N)X](+) species (where X = halide). The complexes, accessible in a single step in good yield, are structurally nearly identical higher charge congeners of the tricarbonyl molecules. Substitution chemistry aimed at the realization of equivalent dicationic species (intended for applications as potential antimicrobial agents), revealed that the reactivity of metal ion in [Re(CO)(2)(NO)(N-N)X](+) is that of a hard Re acid, probably due to the stronger pi-acceptor properties of NO+ as compared to those of CO. The metal ion thus shows great affinity for pi-basic ligands, which are consequently difficult to replace by, e.g., sigma-donor or weak pi-acids like pyridine. Attempts of direct nitrosylation of alpha-diimine fac-[Re(CO)(3)](+) complexes bearing pi-basic OR-type ligands gave the [Re(CO)(2)(NO)(N-N)(BF4)][BF4] salt as the only product in good yield, featuring a stable Re-FBF3 bond. The solid state crystal structure of nearly all molecules presented could be elucidated. A fundamental consequence of the chemistry of [Re(CO)(2)(NO)(N-N)X](+) complexes, it that the same can be photo-activated towards CO release and represent an entirely new class of photoCORMs.
PB  - MDPI, Basel
T2  - Molecules
T1  - Efficient Direct Nitrosylation of alpha-Diimine Rhenium Tricarbonyl Complexes to Structurally Nearly Identical Higher Charge Congeners Activable towards Photo-CO Release
IS  - 17
VL  - 26
DO  - 10.3390/molecules26175302
ER  - 
@article{
author = "Sovari, Sara Nasiri and Kolly, Isabelle and Schindler, Kevin and Cortat, Youri and Liu, Shing-Chi and Crochet, Aurelien and Pavić, Aleksandar and Zobi, Fabio",
year = "2021",
abstract = "The reaction of rhenium alpha-diimine (N-N) tricarbonyl complexes with nitrosonium tetrafluoroborate yields the corresponding dicarbonyl-nitrosyl [Re(CO)(2)(NO)(N-N)X](+) species (where X = halide). The complexes, accessible in a single step in good yield, are structurally nearly identical higher charge congeners of the tricarbonyl molecules. Substitution chemistry aimed at the realization of equivalent dicationic species (intended for applications as potential antimicrobial agents), revealed that the reactivity of metal ion in [Re(CO)(2)(NO)(N-N)X](+) is that of a hard Re acid, probably due to the stronger pi-acceptor properties of NO+ as compared to those of CO. The metal ion thus shows great affinity for pi-basic ligands, which are consequently difficult to replace by, e.g., sigma-donor or weak pi-acids like pyridine. Attempts of direct nitrosylation of alpha-diimine fac-[Re(CO)(3)](+) complexes bearing pi-basic OR-type ligands gave the [Re(CO)(2)(NO)(N-N)(BF4)][BF4] salt as the only product in good yield, featuring a stable Re-FBF3 bond. The solid state crystal structure of nearly all molecules presented could be elucidated. A fundamental consequence of the chemistry of [Re(CO)(2)(NO)(N-N)X](+) complexes, it that the same can be photo-activated towards CO release and represent an entirely new class of photoCORMs.",
publisher = "MDPI, Basel",
journal = "Molecules",
title = "Efficient Direct Nitrosylation of alpha-Diimine Rhenium Tricarbonyl Complexes to Structurally Nearly Identical Higher Charge Congeners Activable towards Photo-CO Release",
number = "17",
volume = "26",
doi = "10.3390/molecules26175302"
}
Sovari, S. N., Kolly, I., Schindler, K., Cortat, Y., Liu, S., Crochet, A., Pavić, A.,& Zobi, F.. (2021). Efficient Direct Nitrosylation of alpha-Diimine Rhenium Tricarbonyl Complexes to Structurally Nearly Identical Higher Charge Congeners Activable towards Photo-CO Release. in Molecules
MDPI, Basel., 26(17).
https://doi.org/10.3390/molecules26175302
Sovari SN, Kolly I, Schindler K, Cortat Y, Liu S, Crochet A, Pavić A, Zobi F. Efficient Direct Nitrosylation of alpha-Diimine Rhenium Tricarbonyl Complexes to Structurally Nearly Identical Higher Charge Congeners Activable towards Photo-CO Release. in Molecules. 2021;26(17).
doi:10.3390/molecules26175302 .
Sovari, Sara Nasiri, Kolly, Isabelle, Schindler, Kevin, Cortat, Youri, Liu, Shing-Chi, Crochet, Aurelien, Pavić, Aleksandar, Zobi, Fabio, "Efficient Direct Nitrosylation of alpha-Diimine Rhenium Tricarbonyl Complexes to Structurally Nearly Identical Higher Charge Congeners Activable towards Photo-CO Release" in Molecules, 26, no. 17 (2021),
https://doi.org/10.3390/molecules26175302 . .
3
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Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection

Sovari, Sara Nasiri; Radaković, Nataša; Roch, Paul; Crochet, Aurelien; Pavić, Aleksandar; Zobi, Fabio

(Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux, 2021)

TY  - JOUR
AU  - Sovari, Sara Nasiri
AU  - Radaković, Nataša
AU  - Roch, Paul
AU  - Crochet, Aurelien
AU  - Pavić, Aleksandar
AU  - Zobi, Fabio
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1477
AB  - Antimicrobial resistance (AMR) is a major emerging threat to public health, causing serious issues in the successful prevention and treatment of persistent diseases. While the problem escalates, lack of financial incentive has lead major pharmaceutical companies to interrupt their antibiotic drug discovery programs. The World Health Organisation (WHO) has called for novel solutions outside the traditional development pathway, with emphasis on new classes of active compounds with non-classical mechanisms of action. Metal complexes are an untapped source of antibiotic potential owing to unique modes of action and a wider range of three-dimensional geometries as compared to purely organic compounds. In this study, we present the antimicrobial and antifungal efficacy of a family of rhenium tricarbonyl diimine complexes with varying ligands, charge and lipophilicity. Our study allowed the identification of potent and non-toxic complexes active in vivo against S. aureus infections at MIC doses as low as 300 ng/mL, as well as against C. albicans-MRSA mixed co-infection. The compounds are capable of suppressing the C. albicans morphogenetic yeast-to-hyphal transition, eradicating fungal-S. aureus co-infection, while showing no sign of cardio-, hepato-, hematotoxiciy or teratogenicity.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux
T2  - European Journal of Medicinal Chemistry
T1  - Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection
VL  - 226
DO  - 10.1016/j.ejmech.2021.113858
ER  - 
@article{
author = "Sovari, Sara Nasiri and Radaković, Nataša and Roch, Paul and Crochet, Aurelien and Pavić, Aleksandar and Zobi, Fabio",
year = "2021",
abstract = "Antimicrobial resistance (AMR) is a major emerging threat to public health, causing serious issues in the successful prevention and treatment of persistent diseases. While the problem escalates, lack of financial incentive has lead major pharmaceutical companies to interrupt their antibiotic drug discovery programs. The World Health Organisation (WHO) has called for novel solutions outside the traditional development pathway, with emphasis on new classes of active compounds with non-classical mechanisms of action. Metal complexes are an untapped source of antibiotic potential owing to unique modes of action and a wider range of three-dimensional geometries as compared to purely organic compounds. In this study, we present the antimicrobial and antifungal efficacy of a family of rhenium tricarbonyl diimine complexes with varying ligands, charge and lipophilicity. Our study allowed the identification of potent and non-toxic complexes active in vivo against S. aureus infections at MIC doses as low as 300 ng/mL, as well as against C. albicans-MRSA mixed co-infection. The compounds are capable of suppressing the C. albicans morphogenetic yeast-to-hyphal transition, eradicating fungal-S. aureus co-infection, while showing no sign of cardio-, hepato-, hematotoxiciy or teratogenicity.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux",
journal = "European Journal of Medicinal Chemistry",
title = "Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection",
volume = "226",
doi = "10.1016/j.ejmech.2021.113858"
}
Sovari, S. N., Radaković, N., Roch, P., Crochet, A., Pavić, A.,& Zobi, F.. (2021). Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection. in European Journal of Medicinal Chemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux., 226.
https://doi.org/10.1016/j.ejmech.2021.113858
Sovari SN, Radaković N, Roch P, Crochet A, Pavić A, Zobi F. Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection. in European Journal of Medicinal Chemistry. 2021;226.
doi:10.1016/j.ejmech.2021.113858 .
Sovari, Sara Nasiri, Radaković, Nataša, Roch, Paul, Crochet, Aurelien, Pavić, Aleksandar, Zobi, Fabio, "Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection" in European Journal of Medicinal Chemistry, 226 (2021),
https://doi.org/10.1016/j.ejmech.2021.113858 . .
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