Article (Scientific journals)
Isonitrile-based multicomponent synthesis of β-amino boronic acids as β-lactamase inhibitors
Bassini, E.; Gazzotti, S.; Sannio, F. et al.
2020In Antibiotics, 9 (5), p. 1-21
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Keywords :
Covalent docking; Multicomponent reactions; Article; Enterobacter cloacae; Escherichia coli; Klebsiella pneumoniae; X ray diffraction
Abstract :
[en] The application of various isonitrile-based multicomponent reactions to protected (2-oxoethyl)boronic acid (as the carbonyl component) is described. The Ugi reaction, both in the four components and in the four centers–three components versions, and the van Leusen reaction, proved effective at providing small libraries of MIDA-protected β-aminoboronic acids. The corresponding free β-aminoboronic acids, quantitatively recovered through basic mild deprotection, were found to be quite stable and were fully characterized, including by11B-NMR spectroscopy. Single-crystal X-ray diffraction analysis, applied both to a MIDA-protected and a free β-aminoboronic acid derivative, provided evidence for different conformations in the solid-state. Finally, the antimicrobial activities of selected compounds were evaluated by measuring their minimal inhibitory concentration (MIC) values, and the binding mode of the most promising derivative on OXA-23 class D β-lactamase was predicted by a molecular modeling study. © 2020 by the authors.
Disciplines :
Microbiology
Biochemistry, biophysics & molecular biology
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Bassini, E.;  Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milan, 20133, Italy
Gazzotti, S.;  Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milan, 20133, Italy
Sannio, F.;  Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Viale Bracci 16, Siena, 53100, Italy
Presti, L. L.;  Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milan, 20133, Italy
Sgrignani, J.;  Istituto di Ricerca in Biomedicina (IRB), Università della Svizzera Italiana (USI), Via V. Vela 6, Bellinzona, CH-6500, Switzerland
Docquier, Jean-Denis ;  Université de Liège - ULiège > Département des sciences de la vie > Centre d'ingénierie des protéines
Grazioso, G.;  Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, Milan, 20133, Italy
Silvani, A.;  Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milan, 20133, Italy
Language :
English
Title :
Isonitrile-based multicomponent synthesis of β-amino boronic acids as β-lactamase inhibitors
Publication date :
2020
Journal title :
Antibiotics
eISSN :
2079-6382
Publisher :
MDPI AG
Special issue title :
Targeting β-lactamases to Fight Bacterial Resistance to β-lactam Antibiotics
Volume :
9
Issue :
5
Pages :
1-21
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 November 2020

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