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Innocenti R, Lenci E, Menchi G, Trabocchi A. Combination of multicomponent KA 2 and Pauson-Khand reactions: short synthesis of spirocyclic pyrrolocyclopentenones. Beilstein J Org Chem 2020; 16:200-211. [PMID: 32117477 PMCID: PMC7034245 DOI: 10.3762/bjoc.16.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 01/23/2020] [Indexed: 12/23/2022] Open
Abstract
The Cu-catalyzed multicomponent ketone–amine–alkyne (KA2) reaction was combined with a Pauson–Khand cycloaddition to give access of unprecedented constrained spirocyclic pyrrolocyclopentenone derivatives following a DOS couple-pair approach. The polyfunctional molecular scaffolds were tested on the cyclopentenone reactivity to further expand the skeletal diversity, demonstrating the utility of this combined approach in generating novel spiro compounds as starting material for the generation of chemical libraries. The chemoinformatics characterization of the newly-synthesized molecules gave evidence about structural and physicochemical properties with respect to a set of blockbuster drugs, and showed that such scaffolds are drug-like but more spherical and three-dimensional in character than the drugs.
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Affiliation(s)
- Riccardo Innocenti
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Elena Lenci
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Gloria Menchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Andrea Trabocchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy.,Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
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2
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Innocenti R, Lenci E, Baldini L, Faggi C, Menchi G, Trabocchi A. Copper-Catalyzed A3
-Coupling for the Diversity-Oriented Synthesis of Proline-Derived Alkynyl-Substituted Peptidomimetic Scaffolds. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900703] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Riccardo Innocenti
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Elena Lenci
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Lorenzo Baldini
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Cristina Faggi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM); University of Florence; Viale Morgagni 85 50134 Florence Italy
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3
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Lenci E, Innocenti R, Di Francescantonio T, Menchi G, Bianchini F, Contini A, Trabocchi A. Identification of highly potent and selective MMP2 inhibitors addressing the S1′ subsite with d-proline-based compounds. Bioorg Med Chem 2019; 27:1891-1902. [DOI: 10.1016/j.bmc.2019.03.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/15/2019] [Accepted: 03/21/2019] [Indexed: 01/19/2023]
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4
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Lenci E, Menchi G, Saldívar-Gonzalez FI, Medina-Franco JL, Trabocchi A. Bicyclic acetals: biological relevance, scaffold analysis, and applications in diversity-oriented synthesis. Org Biomol Chem 2019; 17:1037-1052. [DOI: 10.1039/c8ob02808g] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The chemoinformatics analysis of fused, spiro, and bridged bicyclic acetals is instrumental for the DOS of natural product-inspired molecular collections.
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Affiliation(s)
- Elena Lenci
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
| | - Fernanda I. Saldívar-Gonzalez
- School of Chemistry
- Department of Pharmacy
- Universidad Nacional Autónoma de México
- Avenida Universidad 3000
- Mexico City 04510
| | - José L. Medina-Franco
- School of Chemistry
- Department of Pharmacy
- Universidad Nacional Autónoma de México
- Avenida Universidad 3000
- Mexico City 04510
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
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5
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Lenci E, Innocenti R, Menchi G, Trabocchi A. Diversity-Oriented Synthesis and Chemoinformatic Analysis of the Molecular Diversity of sp 3-Rich Morpholine Peptidomimetics. Front Chem 2018; 6:522. [PMID: 30425982 PMCID: PMC6218424 DOI: 10.3389/fchem.2018.00522] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/10/2018] [Indexed: 12/03/2022] Open
Abstract
Diversity-Oriented Synthesis (DOS) consists of generating structurally diverse compounds from a complexity-generating reaction followed by cyclization steps and appendage diversity. DOS has gathered interest to systematically explore the chemical space by generating high-quality small-molecule collections as probes to investigate biological pathways. The generation of heterocycles using amino acid and sugar derivatives as building blocks is a powerful approach to access chemical and geometrical diversity thanks to the high number of stereocenters and the polyfunctionality of such compounds. Our efforts in this field are focused on the generation of diversity-oriented molecules of peptidomimetic nature as a tool addressing protein-protein interactions, taking advantage of amino acid- and sugar-derived polyfunctional building blocks to be applied in couple-pair synthetic approaches. In this paper, the combination of diversity-oriented synthesis and chemoinformatics analysis of chemical space and molecular diversity of heterocyclic peptidomimetics are reported, with particular interest toward carbohydrate- and amino acid-derived morpholine scaffolds with a higher fraction of sp3 carbon atoms. Also, the chemoinformatic analysis of chemical space and molecular diversity of 186 morpholine peptidomimetics is outlined.
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Affiliation(s)
- Elena Lenci
- Department of Chemistry “Ugo Schiff”, University of Florence, Florence, Italy
| | | | | | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”, University of Florence, Florence, Italy
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6
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Innocenti R, Lenci E, Menchi G, Pupi A, Trabocchi A. Corrigendum to "Design and synthesis of bicyclic acetals as Beta Secretase (BACE1) inhibitors" [Bioorg. Med. Chem. 25 (2017) 5077-5083]. Bioorg Med Chem 2017; 25:6724-6725. [PMID: 29111366 DOI: 10.1016/j.bmc.2017.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Riccardo Innocenti
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Elena Lenci
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Gloria Menchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy; Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
| | - Alberto Pupi
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy; Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Largo Brambilla 3, 50134 Florence, Italy; Azienda Ospedaliera Universitaria Careggi (AOUC), Largo Brambilla 3, 50134 Florence, Italy
| | - Andrea Trabocchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy; Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy.
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7
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Abstract
The application of iminium catalysis to the challenging Morita–Baylis–Hillman reaction on cyclopenten-2-one leads to the corresponding allylic alcohols in excellent yields. Experimental evidence shows that secondary amines act as co-catalysts activating the enone moiety towards the nucleophilic attack at the β-position by DABCO as the Lewis base catalyst, resulting in an augmented nucleophilic character towards the reaction with aldehydes.
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Innocenti R, Lenci E, Menchi G, Pupi A, Trabocchi A. Design and synthesis of bicyclic acetals as Beta Secretase (BACE1) inhibitors. Bioorg Med Chem 2017; 25:5077-5083. [PMID: 28359674 DOI: 10.1016/j.bmc.2017.03.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/10/2017] [Accepted: 03/15/2017] [Indexed: 01/30/2023]
Abstract
Taking advantage of the structural similarity between aspartic proteases, small-molecule peptidomimetic inhibitors that already showed activity towards Secreted Aspartic Protease 2 as anti-Candida agents and HIV protease inhibitors were exploited as potential BACE1 inhibitors. A focused library of 6,8-dioxa-3-azabicyclo[3.2.1]-octane peptidomimetic scaffolds was synthesized and assayed towards BACE1 enzyme, resulting in the identification of a thiolactam-containing hit compound possessing IC50 in the low micromolar range, and confirming the bicyclic acetal portion as a potential transition state analogue in the interaction with catalytic aspartic acid residues.
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Affiliation(s)
- Riccardo Innocenti
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Elena Lenci
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Gloria Menchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy; Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
| | - Alberto Pupi
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy; Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Largo Brambilla 3, 50134 Florence, Italy; Azienda Ospedaliera Universitaria Careggi (AOUC), Largo Brambilla 3, 50134 Florence, Italy
| | - Andrea Trabocchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy; Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy.
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9
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Abstract
A convenient synthesis of sp3-rich complex morpholines was achieved in two steps involving a Petasis three-component coupling reaction followed by an acid- or base-mediated cyclization.
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Affiliation(s)
- Elena Lenci
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Alessio Rossi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
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10
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Lenci E, Innocenti R, Biagioni A, Menchi G, Bianchini F, Trabocchi A. Identification of Novel Human Breast Carcinoma (MDA-MB-231) Cell Growth Modulators from a Carbohydrate-Based Diversity Oriented Synthesis Library. Molecules 2016; 21:molecules21101405. [PMID: 27775632 PMCID: PMC6273552 DOI: 10.3390/molecules21101405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/12/2016] [Accepted: 10/15/2016] [Indexed: 01/16/2023] Open
Abstract
The application of a cell-based growth inhibition on a library of skeletally different glycomimetics allowed for the selection of a hexahydro-2H-furo[3,2-b][1,4]oxazine compound as candidate inhibitors of MDA-MB-231 cell growth. Subsequent synthesis of analogue compounds and preliminary biological studies validated the selection of a valuable hit compound with a novel polyhydroxylated structure for the modulation of the breast carcinoma cell cycle mechanism.
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Affiliation(s)
- Elena Lenci
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy.
| | - Riccardo Innocenti
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy.
| | - Alessio Biagioni
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Viale Morgagni 50, 50134 Florence, Italy.
| | - Gloria Menchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy.
| | - Francesca Bianchini
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Viale Morgagni 50, 50134 Florence, Italy.
| | - Andrea Trabocchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy.
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11
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Bianchini F, Peppicelli S, Fabbrizzi P, Biagioni A, Mazzanti B, Menchi G, Calorini L, Pupi A, Trabocchi A. Triazole RGD antagonist reverts TGFβ1-induced endothelial-to-mesenchymal transition in endothelial precursor cells. Mol Cell Biochem 2016; 424:99-110. [PMID: 27761847 PMCID: PMC5219041 DOI: 10.1007/s11010-016-2847-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/08/2016] [Indexed: 12/26/2022]
Abstract
Fibrosis is the dramatic consequence of a dysregulated reparative process in which activated fibroblasts (myofibroblasts) and Transforming Growth Factor β1 (TGFβ1) play a central role. When exposed to TGFβ1, fibroblast and epithelial cells differentiate in myofibroblasts; in addition, endothelial cells may undergo endothelial-to-mesenchymal transition (EndoMT) and actively participate to the progression of fibrosis. Recently, the role of αv integrins, which recognize the Arg-Gly-Asp (RGD) tripeptide, in the release and signal transduction activation of TGFβ1 became evident. In this study, we present a class of triazole-derived RGD antagonists that interact with αvβ3 integrin. Above different compounds, the RGD-2 specifically interferes with integrin-dependent TGFβ1 EndoMT in Endothelial Colony-Forming Cells (ECPCs) derived from circulating Endothelial Precursor Cells (ECPCs). The RGD-2 decreases the amount of membrane-associated TGFβ1, and reduces both ALK5/TGFβ1 type I receptor expression and Smad2 phosphorylation in ECPCs. We found that RGD-2 antagonist reverts EndoMT, reducing α-smooth muscle actin (α-SMA) and vimentin expression in differentiated ECPCs. Our results outline the critical role of integrin in fibrosis progression and account for the opportunity of using integrins as target for anti-fibrotic therapeutic treatment.
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Affiliation(s)
- Francesca Bianchini
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy.
| | - Silvia Peppicelli
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy
| | | | - Alessio Biagioni
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy
| | | | - Gloria Menchi
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy.,Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Florence, Italy
| | - Lido Calorini
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy
| | - Alberto Pupi
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy.,Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Florence, Italy
| | - Andrea Trabocchi
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy.,Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Florence, Italy
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12
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Vasile F, Menchi G, Lenci E, Guarna A, Potenza D, Trabocchi A. Insight to the binding mode of triazole RGD-peptidomimetics to integrin-rich cancer cells by NMR and molecular modeling. Bioorg Med Chem 2016; 24:989-94. [DOI: 10.1016/j.bmc.2016.01.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 01/12/2016] [Accepted: 01/13/2016] [Indexed: 12/20/2022]
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13
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Abstract
Carbohydrates are attractive building blocks for diversity-oriented synthesis due to their stereochemical diversity and high density of polar functional groups.
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Affiliation(s)
- E. Lenci
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - G. Menchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - A. Trabocchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
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14
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Bianchini F, Fabbrizzi P, Menchi G, Raspanti S, Bottoncetti A, Passeri A, Andreucci E, Guarna A, Calorini L, Pupi A, Trabocchi A. Radiosynthesis and micro-SPECT analysis of triazole-based RGD integrin ligands as non-peptide molecular imaging probes for angiogenesis. Bioorg Med Chem 2015; 23:1112-22. [DOI: 10.1016/j.bmc.2014.12.065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/22/2014] [Accepted: 12/28/2014] [Indexed: 12/22/2022]
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15
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Lenci E, Menchi G, Guarna A, Trabocchi A. Skeletal Diversity from Carbohydrates: Use of Mannose for the Diversity-Oriented Synthesis of Polyhydroxylated Compounds. J Org Chem 2015; 80:2182-91. [DOI: 10.1021/jo502701c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Elena Lenci
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
| | - Gloria Menchi
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
| | - Antonio Guarna
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
| | - Andrea Trabocchi
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
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16
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Fabbrizzi P, Menchi G, Guarna A, Trabocchi A. Use of click-chemistry in the development of peptidomimetic enzyme inhibitors. Curr Med Chem 2015; 21:1467-77. [PMID: 24350850 DOI: 10.2174/0929867321666131218093611] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 10/11/2013] [Accepted: 12/10/2013] [Indexed: 11/22/2022]
Abstract
Cu(I)-catalyzed Azide-Alkyne Cycloaddition (CuAAC) is often utilized in medicinal chemistry to make the triazole moiety as it acts as a non-classical bioisostere of the peptide bond. This useful technique can also be applied in the fragment-based assembly of molecular libraries for high-throughput screening. This minireview outlines the application of click-chemistry in the synthesis of enzyme inhibitors with the triazole moiety.
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Affiliation(s)
| | | | | | - A Trabocchi
- Department of Chemistry "Ugo Schiff" , University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy.
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Bianchini F, Calugi C, Ruzzolini J, Menchi G, Calorini L, Guarna A, Trabocchi A. A study of ad-proline peptidomimetic inhibitor of melanoma and endothelial cell invasion through activity towards MMP-2 and MMP-9. Med Chem Commun 2015. [DOI: 10.1039/c4md00287c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ad-proline peptidomimetic targeting MMP-2 and MMP-9 was identified from a pool of compounds following enzyme inhibition kinetics and Matrigel sponge assays, showing the capacity of blocking capillary network formationin vivo.
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Affiliation(s)
- Francesca Bianchini
- Department of Clinical and Experimental Biomedical Science “Mario Serio”
- University of Florence
- 50134 Florence
- Italy
| | - Chiara Calugi
- University of Florence
- Department of Chemistry “Ugo Schiff”
- Florence
- Italy
| | - Jessica Ruzzolini
- Department of Clinical and Experimental Biomedical Science “Mario Serio”
- University of Florence
- 50134 Florence
- Italy
| | - Gloria Menchi
- University of Florence
- Department of Chemistry “Ugo Schiff”
- Florence
- Italy
| | - Lido Calorini
- Department of Clinical and Experimental Biomedical Science “Mario Serio”
- University of Florence
- 50134 Florence
- Italy
| | - Antonio Guarna
- University of Florence
- Department of Chemistry “Ugo Schiff”
- Florence
- Italy
| | - Andrea Trabocchi
- University of Florence
- Department of Chemistry “Ugo Schiff”
- Florence
- Italy
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18
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Lenci E, Innocenti R, Menchi G, Faggi C, Trabocchi A. Two-step one-pot synthesis of dihydropyrazinones as Xaa-Ser dipeptide isosteres through morpholine acetal rearrangement. Org Biomol Chem 2015; 13:7013-9. [DOI: 10.1039/c5ob00783f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The synthesis of the uncommon dihydropyrazinone ring was accomplished by taking advantage of the ring rearrangement ofN-acylated morpholine acetal derived from serine under acidic treatment and in the presence of 2,6-lutidine, resulting in a constrained Xaa-Ser dipeptide isostere.
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Affiliation(s)
- Elena Lenci
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino, Florence
- Italy
| | - Riccardo Innocenti
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino, Florence
- Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino, Florence
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
| | - Cristina Faggi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino, Florence
- Italy
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino, Florence
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
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Trabocchi A, Pala N, Krimmelbein I, Menchi G, Guarna A, Sechi M, Dreker T, Scozzafava A, Supuran CT, Carta F. Peptidomimetics as protein arginine deiminase 4 (PAD4) inhibitors. J Enzyme Inhib Med Chem 2014; 30:466-71. [DOI: 10.3109/14756366.2014.947976] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Bianchini F, Cini N, Trabocchi A, Bottoncetti A, Raspanti S, Vanzi E, Menchi G, Guarna A, Pupi A, Calorini L. ¹²⁵I-radiolabeled morpholine-containing arginine-glycine-aspartate (RGD) ligand of αvβ₃ integrin as a molecular imaging probe for angiogenesis. J Med Chem 2012; 55:5024-33. [PMID: 22621422 DOI: 10.1021/jm2016232] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this paper, using a hybrid small-animal Micro SPECT/CT imaging system, we report that a new (125)I-Cilengitide-like RGD-cyclopentapeptide, containing d-morpholine-3-carboxylic acid, interacts in vivo with α(v)β(3) integrin expressed by melanoma cells. Images clearly show that the (125)I-compound has the capacity to monitor the growth of a melanoma xenograft. Indeed, retention of the labeled ligand in the tumor mass has a good tumor/background ratio, and a significant reduction of its uptake was observed after injection of unlabeled ligand. These results suggest that the use of (125)I-labeled morpholine-based RGD-cyclopentapeptides targeting α(v)β(3) positive tumors may play a role in future therapeutic strategies.
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Affiliation(s)
- Francesca Bianchini
- Department of Experimental Pathology and Oncology, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
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Cini E, Bifulco G, Menchi G, Rodriquez M, Taddei M. Synthesis of Enantiopure 7-Substituted Azepane-2-carboxylic Acids as Templates for Conformationally Constrained Peptidomimetics. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101387] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ciofi L, Trabocchi A, Lalli C, Menchi G, Guarna A. One-pot sequential Ti-/Cu-catalysis for tandem amidation/Ullmann-type cyclization: synthesis of model benzodiazepine(di)ones promoted by microwave irradiation. Org Biomol Chem 2012; 10:2780-6. [DOI: 10.1039/c2ob07063d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Leonardo Ciofi
- Department of Chemistry Ugo Schiff, University of Florence, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
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Marcaccini S, Menchi G, Trabocchi A. Synthesis of diverse phenylglycine derivatives via transformation of Ugi four-component condensation primary adducts. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.03.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Trabocchi A, Menchi G, Cini N, Bianchini F, Raspanti S, Bottoncetti A, Pupi A, Calorini L, Guarna A. Click-Chemistry-Derived Triazole Ligands of Arginine−Glycine−Aspartate (RGD) Integrins with a Broad Capacity To Inhibit Adhesion of Melanoma Cells and Both in Vitro and in Vivo Angiogenesis. J Med Chem 2010; 53:7119-28. [DOI: 10.1021/jm100754z] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
| | - Nicoletta Cini
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
- Department of Clinical Physiopathology, Nuclear Medicine Unit, University of Florence, Italy
- Istituto Toscano Tumori, Via T. Alderotti 26N, 50139 Florence, Italy
| | - Francesca Bianchini
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
- Istituto Toscano Tumori, Via T. Alderotti 26N, 50139 Florence, Italy
- Department of Experimental Pathology and Oncology, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Silvia Raspanti
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
- Department of Clinical Physiopathology, Nuclear Medicine Unit, University of Florence, Italy
- Istituto Toscano Tumori, Via T. Alderotti 26N, 50139 Florence, Italy
| | - Anna Bottoncetti
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
- Department of Clinical Physiopathology, Nuclear Medicine Unit, University of Florence, Italy
- Istituto Toscano Tumori, Via T. Alderotti 26N, 50139 Florence, Italy
| | - Alberto Pupi
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
- Department of Clinical Physiopathology, Nuclear Medicine Unit, University of Florence, Italy
- Istituto Toscano Tumori, Via T. Alderotti 26N, 50139 Florence, Italy
| | - Lido Calorini
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
- Istituto Toscano Tumori, Via T. Alderotti 26N, 50139 Florence, Italy
- Department of Experimental Pathology and Oncology, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Antonio Guarna
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Viale Morgagni 85, 50134 Florence, Italy
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Faggi C, García-Valverde M, Marcaccini S, Menchi G. Isolation of Ugi Four-Component Condensation Primary Adducts: A Straightforward Route to Isocoumarins. Org Lett 2010; 12:788-91. [DOI: 10.1021/ol9028622] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cristina Faggi
- CRIST, Università di Firenze, Italy, Departamento de Química, Universidad de Burgos, Spain, and Dipartimento di Chimica Organica, Università di Firenze, via della Lastruccia 13, 50019 Sesto Fiorentino (FI), Italy
| | - María García-Valverde
- CRIST, Università di Firenze, Italy, Departamento de Química, Universidad de Burgos, Spain, and Dipartimento di Chimica Organica, Università di Firenze, via della Lastruccia 13, 50019 Sesto Fiorentino (FI), Italy
| | - Stefano Marcaccini
- CRIST, Università di Firenze, Italy, Departamento de Química, Universidad de Burgos, Spain, and Dipartimento di Chimica Organica, Università di Firenze, via della Lastruccia 13, 50019 Sesto Fiorentino (FI), Italy
| | - Gloria Menchi
- CRIST, Università di Firenze, Italy, Departamento de Química, Universidad de Burgos, Spain, and Dipartimento di Chimica Organica, Università di Firenze, via della Lastruccia 13, 50019 Sesto Fiorentino (FI), Italy
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Lalli C, Trabocchi A, Sladojevich F, Menchi G, Guarna A. Diversity-Oriented Synthesis of Morpholine-Containing Molecular Scaffolds. Chemistry 2009; 15:7871-7875. [DOI: 10.1002/chem.200900744] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Altamura M, Dragoni E, Infantino AS, Legnani L, Ludbrook SB, Menchi G, Toma L, Nativi C. Cyclic glycopeptidomimetics through a versatile sugar-based scaffold. Bioorg Med Chem Lett 2009; 19:3841-4. [DOI: 10.1016/j.bmcl.2009.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Revised: 03/31/2009] [Accepted: 04/03/2009] [Indexed: 11/25/2022]
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Cini N, Trabocchi A, Menchi G, Bottoncetti A, Raspanti S, Pupi A, Guarna A. Morpholine-based RGD-cyclopentapeptides as αvβ3/αvβ5 integrin ligands: Role of configuration towards receptor binding affinity. Bioorg Med Chem 2009; 17:1542-9. [DOI: 10.1016/j.bmc.2009.01.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 01/05/2009] [Accepted: 01/07/2009] [Indexed: 10/21/2022]
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Zanardi F, Burreddu P, Rassu G, Auzzas L, Battistini L, Curti C, Sartori A, Nicastro G, Menchi G, Cini N, Bottoncetti A, Raspanti S, Casiraghi G. Discovery of Subnanomolar Arginine-Glycine-Aspartate-Based α Vβ 3/α Vβ 5 Integrin Binders Embedding 4-Aminoproline Residues. J Med Chem 2008. [DOI: 10.1021/jm800298q] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Faggi C, Neo AG, Marcaccini S, Menchi G, Revuelta J. Ugi four-component condensation with two cleavable components: the easiest synthesis of 2,N-diarylglycines. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.01.134] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zanardi F, Burreddu P, Rassu G, Auzzas L, Battistini L, Curti C, Sartori A, Nicastro G, Menchi G, Cini N, Bottonocetti A, Raspanti S, Casiraghi G. Discovery of Subnanomolar Arginine-Glycine-Aspartate-Based αVβ3/αVβ5 Integrin Binders Embedding 4-Aminoproline Residues. J Med Chem 2008; 51:1771-82. [DOI: 10.1021/jm701214z] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Franca Zanardi
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Paola Burreddu
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Gloria Rassu
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Luciana Auzzas
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Lucia Battistini
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Claudio Curti
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Andrea Sartori
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Giuseppe Nicastro
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Gloria Menchi
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Nicoletta Cini
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Anna Bottonocetti
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Silvia Raspanti
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
| | - Giovanni Casiraghi
- Dipartimento Farmaceutico, Università di Parma, Viale G. P. Usberti 27A, I-43100 Parma, Italy, Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07040 Li Punti, Sassari, Italy, Centro Interdipartimentale Misure “G. Casnati”, Università di Parma, Viale G. P. Usberti 23A, I-43100 Parma, Italy, Dipartimento di Chimica Organica “Ugo Schiff”, Università degli Studi di Firenze, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, and Dipartimento di
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Marcos CF, Marcaccini S, Menchi G, Pepino R, Torroba T. Studies on isocyanides: synthesis of tetrazolyl-isoindolinones via tandem Ugi four-component condensation/intramolecular amidation. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.10.154] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Danieli E, Trabocchi A, Menchi G, Guarna A. Synthesis and Conformational Analysis of Constrained β-Turn Mimetics Incorporating a Bicyclic Turn Inducer by Use of the Petasis Three-Component Reaction on Solid Phase. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600650] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Cini N, Danieli E, Menchi G, Trabocchi A, Bottoncetti A, Raspanti S, Pupi A, Guarna A. 3-Aza-6,8-dioxabicyclo[3.2.1]octanes as new enantiopure heteroatom-rich tropane-like ligands of human dopamine transporter. Bioorg Med Chem 2006; 14:5110-20. [PMID: 16678430 DOI: 10.1016/j.bmc.2006.04.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2006] [Revised: 04/03/2006] [Accepted: 04/04/2006] [Indexed: 11/19/2022]
Abstract
CNS diseases such as Parkinson, schizophrenia, and attention deficit hyperactivity disorder (ADHD) are characterized by a significant alteration of dopamine transporter (DAT) density. Thus, the development of compounds that are able to selectively interact with DAT is of great interest. Herein we describe the design and synthesis of a new set of 3-aza-6,8-dioxabicyclo[3.2.1]octanes having a tropane-like structure with additional heteroatoms at positions 3 and 6. The compounds were evaluated for their in vitro receptor binding properties toward human dopamine (hDAT) and serotonin (hSERT) transporters using [3H]WIN35,428 and [3H]citalopram as specific radioligands, respectively. Biological assays revealed that some compounds having the N-3 atom substituted with aryl groups possess significant affinity and selectivity for monoamine transporters, and in particular, compound 5d displayed an IC50 of 21 nM toward DAT, and a good selectivity toward SERT (IC50=1042 nM). These results suggest that 3-aryl-3-aza-6,8-dioxabicyclo[3.2.1]octanes may represent a new class of DAT ligands.
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Affiliation(s)
- Nicoletta Cini
- Dipartimento di Fisiopatologia Clinica, Unità di Medicina Nucleare, Università degli Studi di Firenze, Viale Pieraccini 6, I-50134 Firenze, Italy
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Guarna A, Trabocchi A, Menchi G, Guarna F, Machetti F, Scarpi D. Design, Synthesis, and Applications of 3-Aza-6,8-Dioxabicyclo[3.2.1]Octane-Based Scaffolds for Peptidomimetic Chemistry. Synlett 2006. [DOI: 10.1055/s-2006-926249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Danieli E, Trabocchi A, Menchi G, Guarna A. Synthesis of Glycidol- and Sugar-Derived Bicyclic β- and γ/δ-Amino Acids for Peptidomimetic Design. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500386] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ferrali A, Menchi G, Occhiato EG, Danza G, Mancina R, Serio M, Guarna A. Synthesis and activity of 8-substituted benzo[c]quinolizin-3-ones as dual inhibitors of human 5alpha-reductases 1 and 2. Bioorg Med Chem Lett 2005; 15:145-8. [PMID: 15582428 DOI: 10.1016/j.bmcl.2004.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2004] [Revised: 10/05/2004] [Accepted: 10/07/2004] [Indexed: 10/26/2022]
Abstract
Some potent dual inhibitors of 5alpha-reductases 1 and 2, based on the benzo[c]quinolizin-3-one structure and with IC(50) values ranging between 93 and 166nM for both isozymes, were found. The presence of the F atom on the ester moiety at the position 8 was crucial. This result can help in the design of other potent, dual inhibitors to be developed as drugs in the treatment of 5alpha-reductase related diseases.
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Affiliation(s)
- Alessandro Ferrali
- Dipartimento di Chimica Organica Ugo Schiff, Polo Scientifico Università di Firenze, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy
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Occhiato EG, Ferrali A, Menchi G, Guarna A, Danza G, Comerci A, Mancina R, Serio M, Garotta G, Cavalli A, De Vivo M, Recanatini M. Synthesis, Biological Activity, and Three-Dimensional Quantitative Structure−Activity Relationship Model for a Series of Benzo[c]quinolizin-3-ones, Nonsteroidal Inhibitors of Human Steroid 5α-Reductase 1. J Med Chem 2004; 47:3546-60. [PMID: 15214782 DOI: 10.1021/jm031131o] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New 5alpha-reductase 1 (5alphaR-1) inhibitors were designed to complete a consistent set of analogues suitable for a 3D QSAR study. These compounds were synthesized by a modification of the aza-Robinson annulation, further functionalized by Pd-catalyzed cross-coupling processes, and were tested with human 5alphaR-1 expressed in Chinese hamster ovary 1827 cells. It turned out that the potency of the resulting inhibitors was strongly dependent on the type of substitution at the 8 position, with the IC(50) values ranging from 8.1 to 1050 nM. The construction of this homogeneous set of molecules allowed a 3D QSAR study. In particular, comparative molecular field analysis (CoMFA) was used to correlate the potency of the inhibitors with their physicochemical features. Highly accurate evaluations of the atomic point charges were carried out by means of quantum chemical calculations at the DFT/B3LYP level of theory followed by the RESP fitting procedure. It turned out that increasing the reliability of electrostatic parameters greatly affected the statistical results of the QSAR analysis. The 3D QSAR model proposed could be very useful in the further development of 5alphaR-1 inhibitors, which are suitable candidates to be evaluated as drugs in the treatment of 5alphaR-1 related diseases such as acne and alopecia in men and hirsutism in women.
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Affiliation(s)
- Ernesto G Occhiato
- Department of Organic Chemistry U. Schiff, University of Florence, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy
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Trabocchi A, Menchi G, Rolla M, Machetti F, Bucelli I, Guarna A. Enantiospecific synthesis of 3-aza-6,8-dioxa-bicyclo[3.2.1]octane carboxylic acids from erythrose. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00773-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Guarna A, Bucelli I, Machetti F, Menchi G, Occhiato EG, Scarpi D, Trabocchi A. Synthesis of a new enantiopure bicyclic γ/δ-amino acid (BTKa) derived from tartaric acid and α-amino acetophenone. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)01297-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Cini N, Machetti F, Menchi G, Occhiato E, Guarna A. Bicyclic Compounds Derived from Tartaric Acid and α-Amino Acids (BTAas): Synthesis of New Molecular Scaffolds Derived from the Combination of (R,R)-Tartaric Acid andL-Serine. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200203)2002:5<873::aid-ejoc873>3.0.co;2-v] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Guarna A, Menchi G, Berti G, Cini N, Bottoncetti A, Raspanti S, Politi A, Pupi A. Synthesis and preliminary biological characterization of a new potential (125)I-radioligand for dopamine and serotonin receptors. Bioorg Med Chem 2001; 9:3197-206. [PMID: 11711295 DOI: 10.1016/s0968-0896(01)00229-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The synthesis and a preliminary biological characterization of a new class of N-benzyl-aminoalcohols which have serotonin (5-HT(2)) and dopamine (D(2)) receptor affinity is described. In vitro competition binding studies were conducted with the new molecules and (3)H-spiperone on crude membrane preparation from rat striatum and frontal cortex. One of these compounds, 3-benzylamino-1-(4-fluoro-2-iodophenyl)-propan-1-ol (6f), whose IC(50) values are in the micromolar range for both the D(2) and 5-HT(2) receptors, was prepared in iodine-125 labelled form (6i) by nucleophilic substitution of the bromine atom of 3-benzylamino-1-(2-bromo-4-fluorophenyl)-propan-1-ol (6d). In the in vivo studies, conducted on rats, the radiolabelled molecule 6i shows a good capacity to cross the blood-brain barrier (BBB) with a mean value of first pass cerebral extraction (E) of ca. 50% when the regional cerebral blood flow, measured with microsphere technique, is in the experimental animal's physiologic range (0.8-1 mL/min/g). A preliminary in vitro autoradiographic distribution on coronal rat brain slices of the radioiodinated molecule showed that it was preferentially localized in the striatum and in the cerebral regions rich in dopamine- and serotonin receptors, even if a high non-specific binding was observed.
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Affiliation(s)
- A Guarna
- Dipartimento di Chimica Organica U. Schiff, e Centro di Studio sulla Chimica e la Struttura dei Composti Eterociclici e loro Applicazioni, CNR, Università di Firenze, Via G. Capponi 9, Firenze I-50121, Italy.
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Menchi G, Scrivanti A, Matteoli U. Improvements in the synthesis of terminal alkynes via coupling of arylbromides with 2-methylbut-3-yn-2-ol. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1381-1169(99)00289-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
The development of new strategies for solid-phase synthesis of 3-aza-6,8-dioxabicyclo[3.2.1]octane scaffolds, named BTKa, is described. The preparation was made possible by the combination of three components: amines, alpha-halo-acetophenones, and sugar or tartaric acid derivatives. By anchoring each of the three components it was possible to synthesize BTKa compounds either as amino alcohols or amido esters. The compatibility of the protocols with different classes of amines and substituted alpha-halo-acetophenones was demonstrated.
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Affiliation(s)
- Andrea Trabocchi
- Dipartimento di Chimica Organica 'Ugo Schiff', Università degli Studi di Firenze, Polo Scientifico di Sesto Fiorentino, Via della Lastruccia 13, Sesto Fiorentino, Firenze, Italy
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Guarna A, Guidi A, Machetti F, Menchi G, Occhiato EG, Scarpi D, Sisi S, Trabocchi A. Synthesis and Reactivity of Bicycles Derived from Tartaric Acid and α-Amino Acids: A Novel Class of Conformationally Constrained Dipeptide Isosteres Based upon Enantiopure 3-Aza-6,8-dioxabicyclo[3.2.1]octane-7-carboxylic Acid. J Org Chem 1999. [DOI: 10.1021/jo9904967] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Antonio Guarna
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
| | - Antonio Guidi
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
| | - Fabrizio Machetti
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
| | - Gloria Menchi
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
| | - Ernesto G. Occhiato
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
| | - Dina Scarpi
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
| | - Sauro Sisi
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
| | - Andrea Trabocchi
- Department of Organic Chemistry “U. Schiff”, and Center of Heterocyclic Compounds C.N.R., University of Florence, Via G. Capponi 9, I-50121 Florence, Italy, and Menarini Ricerche S.p.A., Chemistry Research Department, Via Sette Santi, 3, I-50131 Florence, Italy
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Matteoli U, Beghetto V, Schiavon C, Scrivanti A, Menchi G. Synthesis of the chiral diphosphine ligand 2,3-bis(diphenylphosphino)butane (CHIRAPHOS). ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0957-4166(97)00132-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Guidi A, Guarna A, Giolitti A, Macherelli M, Menchi G. Condensation Product between (R,R)-Tartaric Acid and a L-Phenylalanine Derivative as a New Molecular Scaffold. Arch Pharm (Weinheim) 1997. [DOI: 10.1002/ardp.19973300702] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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