1
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Berry SN, Zou M, Nguyen SL, Sajowitz AE, Qin L, Lewis W, Jolliffe KA. Supramolecular Control of the Temperature Responsiveness of Fluorescent Macrocyclic Molecular Rotamers. Chemistry 2024; 30:e202400504. [PMID: 38499467 DOI: 10.1002/chem.202400504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 03/20/2024]
Abstract
To fully harness the potential of molecular machines, it is crucial to develop methods by which to exert control over their speed of motion through the application of external stimuli. A conformationally strained macrocyclic fluorescent rotamer, CarROT, displays a reproducible and linear fluorescence decrease towards temperature over the physiological temperature range. Through the external addition of anions, cations or through deprotonation, the compound can access four discreet rotational speeds via supramolecular interactions (very slow, slow, fast and very fast) which in turn stop, reduce or enhance the thermoluminescent properties due to increasing or decreasing non-radiative decay processes, thereby providing a means to externally control the temperature sensitivity of the system. Through comparison with analogues with a higher degree of conformational freedom, the high thermosensitivity of CarROT over the physiological temperature range was determined to be due to conformational strain, which causes a high energy barrier to rotation over this range. Analogues with a higher degree of conformational freedom display lower sensitivities towards temperature over the same temperature range. This study provides an example of an information rich small molecule, in which programable rotational speed states can be observed with facile read-out.
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Affiliation(s)
- Stuart N Berry
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Meijun Zou
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Sarah L Nguyen
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Aidan E Sajowitz
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Lei Qin
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - William Lewis
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
- Sydney Analytical, The University of Sydney, NSW, 2006, Australia
| | - Katrina A Jolliffe
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW, 2006, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW, 2006, Australia
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2
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Tiwari P, Gupta A, Shivhare V, Ahuja R, Mandloi AS, Mishra A, Basu A, Konar AD. Stereogenic Harmony Fabricated Mechanoresponsive Homochiral Triphenylalanine Analogues with Synergistic Antibacterial Performances: A Potential Weapon for Dermal Wound Management. ACS APPLIED BIO MATERIALS 2024; 7:332-343. [PMID: 38116621 DOI: 10.1021/acsabm.3c00926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The wound recovery phenomenon remains as one of the long challenging concerns worldwide. In search of user-friendly dressing materials, in this report, we fabricated a rational combinatorial strategy utilizing stereogenic harmony in a triphenylalanine fragment and appending it to δ-amino valeric acid at the N-terminus (hydrogelators I-VII) such that a potential scaffold could be fished out from the design. Our investigations revealed that all the hydrogelators displayed not only excellent self-healing performance as well as high mechanical strength at physiological pH but also mechanical stress-triggered gel-sol-gel transition properties. The structural and morphological investigation confirmed the presence of β-sheet-like assemblies stabilized by intermolecular H-bonding and π-π interactions. Moreover, these scaffolds showed substantial antibacterial as well as antifungal efficacy against common wound pathogens, i.e, four Gram-positive bacteria (Staphylococcus aureus, Streptococcus mutans, B. subtilis, E. fecalis), four Gram-negative bacteria (Escherichia coli, Klebsiella pneumonia, P. aerugonosa, Proteus spp.), and two fungal strains (C. albicans and A. niger). The manifestation of consistent antioxidant properties might be due to the enhancement of amphiphilicity in hydrogelators, which has led to the generation of reactive oxygen species (ROS) in a facile manner, a probable mechanism to damage the microbial membrane, the driving force behind the antimicrobial efficacy. Also, the constructs exhibited proteolytic resistance and remarkable biocompatibility toward mammalian cells. Thus, based on the above benchmarks, the homochiral hydrogelator IV was seived out from a pool of seven, and we proceeded toward its in vivo evaluation using full-thickness excisional wounds in Wister rats. The scaffolds also accentuated the re-epithelialization as well in comparison to the negative control, thereby facilitating the wound closure process in a very short span of time (10 days). Overall, our in vitro and in vivo analysis certifies hydrogelator IV as an ideal dressing material that might hold immense promise for future wound care management.
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Affiliation(s)
- Priyanka Tiwari
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, Madhya Pradesh 462033, India
| | - Arindam Gupta
- Department of Chemistry, IISER, Bhopal 462066, India
| | - Vaibhav Shivhare
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, Madhya Pradesh 462033, India
| | - Rishabh Ahuja
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, Madhya Pradesh 462033, India
| | - Avinash Singh Mandloi
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, Madhya Pradesh 462044, India
| | - Ankit Mishra
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, Madhya Pradesh 462044, India
| | - Anindya Basu
- School of Pharmaceutical Sciences, Rajiv Gandhi Technological University, Bhopal 462036, India
- University Grants Commission, New Delhi, New Delhi 110002, India
| | - Anita Dutt Konar
- Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal, Madhya Pradesh 462033, India
- School of Pharmaceutical Sciences, Rajiv Gandhi Technological University, Bhopal 462036, India
- University Grants Commission, New Delhi, New Delhi 110002, India
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3
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Núñez-Villanueva D, Plata-Ruiz A, Romero-Muñiz I, Martín-Pérez I, Infantes L, González-Muñiz R, Martín-Martínez M. β-Turn Induction by a Diastereopure Azepane-Derived Quaternary Amino Acid. J Org Chem 2023; 88:14688-14696. [PMID: 37774108 PMCID: PMC10594656 DOI: 10.1021/acs.joc.3c01689] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Indexed: 10/01/2023]
Abstract
β-Turns are one of the most common secondary structures found in proteins. In the interest of developing novel β-turn inducers, a diastereopure azepane-derived quaternary amino acid has been incorporated into a library of simplified tetrapeptide models in order to assess the effect of the azepane position and peptide sequence on the stabilization of β-turns. The conformational analysis of these peptides by molecular modeling, NMR spectroscopy, and X-ray crystallography showed that this azepane amino acid is an effective β-turn inducer when incorporated at the i + 1 position. Moreover, the analysis of the supramolecular self-assembly of one of the β-turn-containing peptide models in the solid state reveals that it forms a supramolecular helical arrangement while maintaining the β-turn structure. The results here presented provide the basis for the use of this azepane quaternary amino acid as a strong β-turn inducer in the search for novel peptide-based bioactive molecules, catalysts, and biomaterials.
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Affiliation(s)
| | - Adrián Plata-Ruiz
- Instituto
de Química Médica (IQM-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Ignacio Romero-Muñiz
- Instituto
de Química Médica (IQM-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Universidad
Autónoma de Madrid, Química Orgánica, Francisco Tomás y Valiente,
7, 28049 Madrid, Spain
| | - Ignacio Martín-Pérez
- Instituto
de Química Médica (IQM-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Lourdes Infantes
- Instituto
de Química Física Rocasolano (IQFR-CSIC), Serrano 119, 28006 Madrid, Spain
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4
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Zhang X, Ligny R, Chewchanwuttiwong S, Hadade R, Laurent MY, Martel A, Jacquemmoz C, Lhoste J, Bricaud S, Py S, Dujardin G. δ-Valerolactamic Quaternary Amino Acid Derivatives: Enantiodivergent Synthesis and Evidence for Stereodifferentiated β-Turn-Inducing Properties. J Org Chem 2021; 86:8041-8055. [PMID: 33960779 DOI: 10.1021/acs.joc.1c00456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Enantiopure (R) and (S) cyclic α,α-disubstituted amino acid derivatives displaying a δ-valerolactam side chain were prepared from a common isoxazolidine precursor. The (R)-configured δ-valerolactam 11 was converted into diastereoisomeric pseudopeptides to investigate its ability to induce secondary structures in peptidomimetics. Conformational studies of these pseudopeptides were carried out in the solid state (X-ray diffraction), in solution (NMR analyses), and in silico (computer-aided conformational analysis), which demonstrated that such quaternary amino acids induce β-turn conformations stable enough to be retained in polar media (DMSO). Incorporation of this new type of α,α-disubstituted amino acid into a representative pseudopeptidic sequence by N- then C-elongation and N-debenzylation is also described herein and could serve for the synthesis of various structured peptidomimetics.
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Affiliation(s)
- Xiaofei Zhang
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France.,Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France.,CNRS, DCM, F-38000 Grenoble, France
| | - Romain Ligny
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Sopa Chewchanwuttiwong
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France.,Prince of Songkla University, Faculty of Science and Industrial Technology Surat Thani 84000, Thailand
| | - Rawan Hadade
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Mathieu Y Laurent
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Arnaud Martel
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Corentin Jacquemmoz
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Jérôme Lhoste
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Sullivan Bricaud
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Sandrine Py
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France.,CNRS, DCM, F-38000 Grenoble, France
| | - Gilles Dujardin
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
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5
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Di Silvio S, Bologna F, Milli L, Giuri D, Zanna N, Castellucci N, Monari M, Calvaresi M, Górecki M, Angelici G, Tomasini C, Pescitelli G. Elusive π-helical peptide foldamers spotted by chiroptical studies. Org Biomol Chem 2020; 18:865-877. [PMID: 31845697 DOI: 10.1039/c9ob02313e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A series of oligomers containing alternate l-Ala and pGlu (pyroglutamic acid) both in the L and D form have been prepared and conformationally investigated by X-ray, NMR, UV/ECD, IR/VCD and molecular modelling. X-ray diffraction analysis was possible for the shortest oligomers LL-1 and LD-1. Molecular dynamics simulations of the oligomers demonstrated that the energy landscapes of the LL-series are broad. In contrast, the energy landscapes of the LD-series are characterized by well-defined minima corresponding to specific conformational structures. A single well-defined minimum exists in the energy landscape of the largest oligomer LD-8, corresponding to a precise conformation, characterized by i + 5 →i N-HO[double bond, length as m-dash]C hydrogen bonds, typical of a π-helix. ECD and VCD spectra were measured to identify the chiroptical profiles of the oligomers. The most striking element in the ECD spectra of the LD-series is their exceptionally strong intensity, which confirms that these polypeptides attain a high degree of helical order. VCD spectra for the LD-series are well reproduced by frequency calculations when π-helix folds are employed as input structures, suggesting that a symmetrical VCD couplet around 1720 cm-1 can be taken as the VCD signature of π-helices.
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Affiliation(s)
- Sergio Di Silvio
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Fabio Bologna
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Lorenzo Milli
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Demetra Giuri
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Nicola Zanna
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Nicola Castellucci
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Magda Monari
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Matteo Calvaresi
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy. and Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw 01-224, Poland
| | - Gaetano Angelici
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy.
| | - Claudia Tomasini
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy.
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy.
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6
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Alajarin M, Lopez-Leonardo C, Orenes RA, Pastor A, Sanchez-Andrada P, Vidal A. Exploring the Conversion of Macrocyclic 2,2′-Biaryl Bis(thioureas) into Cyclic Monothioureas: An Experimental and Computational Investigation. J Org Chem 2018; 83:14022-14035. [DOI: 10.1021/acs.joc.8b02496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mateo Alajarin
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus
of International Excellence “Campus Mare Nostrum”, 30100 Murcia, Spain
| | - Carmen Lopez-Leonardo
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus
of International Excellence “Campus Mare Nostrum”, 30100 Murcia, Spain
| | - Raul-Angel Orenes
- Servicio Universitario de Instrumentacion Cientifica, University of Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Aurelia Pastor
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus
of International Excellence “Campus Mare Nostrum”, 30100 Murcia, Spain
| | - Pilar Sanchez-Andrada
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus
of International Excellence “Campus Mare Nostrum”, 30100 Murcia, Spain
| | - Angel Vidal
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus
of International Excellence “Campus Mare Nostrum”, 30100 Murcia, Spain
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7
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Angelici G, Górecki M, Pescitelli G, Zanna N, Monari M, Tomasini C. Synthesis and structure analysis of ferrocene-containing pseudopeptides. Biopolymers 2017; 110. [PMID: 29058321 DOI: 10.1002/bip.23072] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/11/2017] [Accepted: 09/20/2017] [Indexed: 11/06/2022]
Abstract
Ferrocene with its aromaticity and facile redox properties is an attractive moiety to be incorporated into functional moieties. Medicinal applications of ferrocene are well known and ferrocene itself shows cytotoxic and antianemic properties. In this article, we will describe the synthesis and the structure analysis of two pseudopeptides containing a ferrocene moiety as N-terminal group. After purification, Fc-l-Phe-d-Oxd-OBn [l-Phel-phenylalanine; d-Oxd(4R,5S)-4-Methyl-5-carboxy-oxazolidin-2-one] appears as bright brown solid that spontaneously forms brown needles. The X-ray diffraction of the crystals shows the presence of strong π interactions between the ferrocenyl moiety and the phenyl rings, while no NH•••OC hydrogen bonds are formed. This result is confirmed by FT-IR and 1 H NMR analysis. In contrast, both FT-IR and 1 H NMR analysis suggest that Fc-(l-Phe-d-Oxd)2 -OBn forms a turn conformation stabilized by intramolecular NH•••OC hydrogen bonds in solution. Chiroptical spectroscopies (ECD and VCD) substantially confirmed the absence of a well-defined folded structure. The presence of the Fc moiety is responsible for specific ECD signals, one of which displayed pronounced temperature dependence and is directly related with the helicity assumed by the Fc core. Solid-state ECD spectra were recorded and rationalized on the basis of the X-ray geometry and quantum-mechanical calculations.
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Affiliation(s)
- Gaetano Angelici
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa - Via Moruzzi 13, Pisa, 56124, Italy
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa - Via Moruzzi 13, Pisa, 56124, Italy
- Institute of Organic Chemistry - Polish Academy of Sciences - ul. Kasprzaka 44/52, Warsaw, 01-224, Poland
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa - Via Moruzzi 13, Pisa, 56124, Italy
| | - Nicola Zanna
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna - Via Selmi, 2, Bologna, 40126, Italy
| | - Magda Monari
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna - Via Selmi, 2, Bologna, 40126, Italy
| | - Claudia Tomasini
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna - Via Selmi, 2, Bologna, 40126, Italy
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8
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Berthet M, Lebrun A, Martel A, Cheviet T, Martinez J, Parrot I. Oxa-diketopiperazines: Access and Conformational Analysis of Potential Turn Inducers. ChemistrySelect 2017. [DOI: 10.1002/slct.201701393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mathéo Berthet
- Institut des Biomolécules Max Mousseron, IBMM UMR-5247 CNRS; Université de Montpellier; ENSCM, CC17-03; Pl. E. Bataillon 34095 Montpellier Cedex 5 France
| | - Aurélien Lebrun
- Institut des Biomolécules Max Mousseron, IBMM UMR-5247 CNRS; Université de Montpellier; ENSCM, CC17-03; Pl. E. Bataillon 34095 Montpellier Cedex 5 France
| | - Arnaud Martel
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS; Université du Maine; Av. O. Messiaen 72085 LE MANS CEDEX 9 France
| | - Thomas Cheviet
- Institut des Biomolécules Max Mousseron, IBMM UMR-5247 CNRS; Université de Montpellier; ENSCM, CC17-03; Pl. E. Bataillon 34095 Montpellier Cedex 5 France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron, IBMM UMR-5247 CNRS; Université de Montpellier; ENSCM, CC17-03; Pl. E. Bataillon 34095 Montpellier Cedex 5 France
| | - Isabelle Parrot
- Institut des Biomolécules Max Mousseron, IBMM UMR-5247 CNRS; Université de Montpellier; ENSCM, CC17-03; Pl. E. Bataillon 34095 Montpellier Cedex 5 France
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9
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Del Secco B, Malachin G, Milli L, Zanna N, Papini E, Cornia A, Tavano R, Tomasini C. Form Matters: Stable Helical Foldamers Preferentially Target Human Monocytes and Granulocytes. ChemMedChem 2017; 12:337-345. [DOI: 10.1002/cmdc.201600597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Indexed: 01/16/2023]
Affiliation(s)
- Benedetta Del Secco
- Dipartimento di Chimica Ciamician; Alma Mater Studiorum Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Giulia Malachin
- Dipartimento di Scienze Biomediche; Università di Padova; Viale G. Colombo 3 35121 Padova Italy
| | - Lorenzo Milli
- Dipartimento di Chimica Ciamician; Alma Mater Studiorum Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Nicola Zanna
- Dipartimento di Chimica Ciamician; Alma Mater Studiorum Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Emanuele Papini
- Dipartimento di Scienze Biomediche; Università di Padova; Viale G. Colombo 3 35121 Padova Italy
| | - Andrea Cornia
- Dipartimento di Scienze Chimiche e Geologiche; Università di Modena e Reggio Emilia & INSTM; Via G. Campi 103 41125 Modena Italy
| | - Regina Tavano
- Dipartimento di Scienze Biomediche; Università di Padova; Viale G. Colombo 3 35121 Padova Italy
| | - Claudia Tomasini
- Dipartimento di Chimica Ciamician; Alma Mater Studiorum Università di Bologna; Via Selmi 2 40126 Bologna Italy
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10
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Ingole TS, Vijayadas KN, Chaitanya KN, Kotmale AS, Gawade RL, Gonnade RG, Rajamohanan PR, Sanjayan GJ. Disruption of Native β-Turns: Consequence of Folding Competition between Native and Orthanilic Acid Proline-BasedPseudoβ-Turn. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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11
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Jida M, Van der Poorten O, Guillemyn K, Urbanczyk-Lipkowska Z, Tourwé D, Ballet S. T3P-Promoted, Mild, One-Pot Syntheses of Constrained Polycyclic Lactam Dipeptide Analogues via Stereoselective Pictet–Spengler and Meyers Lactamization Reactions. Org Lett 2015; 17:4482-5. [DOI: 10.1021/acs.orglett.5b02145] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Mouhamad Jida
- Research
Group of Organic Chemistry, Departments of Chemistry and Bio-Engineering
Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Olivier Van der Poorten
- Research
Group of Organic Chemistry, Departments of Chemistry and Bio-Engineering
Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Karel Guillemyn
- Research
Group of Organic Chemistry, Departments of Chemistry and Bio-Engineering
Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Zofia Urbanczyk-Lipkowska
- Institute
of Organic Chemistry, Polish Academy of Sciences, Kasprzaka Strasse
44/52, 01-224 Warsaw, Poland
| | - Dirk Tourwé
- Research
Group of Organic Chemistry, Departments of Chemistry and Bio-Engineering
Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Steven Ballet
- Research
Group of Organic Chemistry, Departments of Chemistry and Bio-Engineering
Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
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12
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Fanelli R, Milli L, Cornia A, Moretto A, Castellucci N, Zanna N, Malachin G, Tavano R, Tomasini C. Chiral Gold Nanoparticles Decorated with Pseudopeptides. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500549] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Venugopalan P, Kishore R. Antiparallel Self-Association of a γ,α-Hybrid Peptide: More Relevance of Weak Interactions. Chem Asian J 2015; 10:1753-60. [PMID: 25965414 DOI: 10.1002/asia.201500373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Indexed: 11/08/2022]
Abstract
To learn how a preorganized peptide-based molecular template, together with diverse weak non-covalent interactions, leads to an effective self-association, we investigated the conformational characteristics of a simple γ,α-hybrid model peptide, Boc-γ-Abz-Gly-OMe. The single-crystal X-ray diffraction analysis revealed the existence of a fully extended β-strand-like structure stabilized by two non-conventional C-H⋅⋅⋅O=C intramolecular H-bonds. The 2D (1) H NMR ROESY experiment led us to propose that the flat topology of the urethane-γ-Abz-amide moiety is predominantly preserved in a non-polar environment. The self-association of the energetically more favorable antiparallel β-strand-mimic in solid-state engenders an unusual 'flight of stairs' fabricated through face-to-face and edge-to-edge Ar⋅⋅⋅Ar interactions. In conjunction with FT-IR spectroscopic analysis in chloroform, we highlight that conformationally semi-rigid γ-Abz foldamer in appositely designed peptides may encourage unusual β-strand or β-sheet-like self-association and supramolecular organization stabilized via weak attractive forces.
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Affiliation(s)
- Paloth Venugopalan
- Department of Chemistry, Panjab University, Sector 14, Chandigarh-, 160 014, India
| | - Raghuvansh Kishore
- Protein Science & Engineering Division, CSIR-Institute of Microbial Technology, Sector 39-A, Chandigarh-, 160 036, India.
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14
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Azuaje J, Pérez-Rubio JM, Yaziji V, El Maatougui A, González-Gomez JC, Sánchez-Pedregal VM, Navarro-Vázquez A, Masaguer CF, Teijeira M, Sotelo E. Integrated Ugi-Based Assembly of Functionally, Skeletally, and Stereochemically Diverse 1,4-Benzodiazepin-2-ones. J Org Chem 2015; 80:1533-49. [DOI: 10.1021/jo502382q] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | | | | | | | | | | | - Armando Navarro-Vázquez
- Departamento
de Quı́mica Orgánica, Facultad de Quı́mica, Universidad de Vigo, E-36310 Vigo, Spain
| | | | - Marta Teijeira
- Departamento
de Quı́mica Orgánica, Facultad de Quı́mica, Universidad de Vigo, E-36310 Vigo, Spain
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15
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Milli L, Marchi E, Castellucci N, Indelli MT, Venturi M, Ceroni P, Tomasini C. Pseudopeptide Foldamers designed for photoinduced intramolecular electron transfer. RSC Adv 2015. [DOI: 10.1039/c4ra13978j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hybrid foldamers equipped with a donor and an acceptor unit exhibit unexpected conformations affecting the photoinduced electron transfer ability. The donor quenching efficiency depends both on the nature and on the secondary structure of the linker.
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Affiliation(s)
- Lorenzo Milli
- Dipartimento di Chimica “G. Ciamician”
- Università di Bologna
- 40126 Bologna
- Italy
| | - Enrico Marchi
- Dipartimento di Chimica “G. Ciamician”
- Università di Bologna
- 40126 Bologna
- Italy
| | - Nicola Castellucci
- Dipartimento di Chimica “G. Ciamician”
- Università di Bologna
- 40126 Bologna
- Italy
| | - Maria Teresa Indelli
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- 44121 Ferrara
- Italy
| | - Margherita Venturi
- Dipartimento di Chimica “G. Ciamician”
- Università di Bologna
- 40126 Bologna
- Italy
- Centro Interuniversitario per la Conversione dell'Energia Solare (SolarChem)
| | - Paola Ceroni
- Dipartimento di Chimica “G. Ciamician”
- Università di Bologna
- 40126 Bologna
- Italy
- Centro Interuniversitario per la Conversione dell'Energia Solare (SolarChem)
| | - Claudia Tomasini
- Dipartimento di Chimica “G. Ciamician”
- Università di Bologna
- 40126 Bologna
- Italy
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16
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Hill TA, Shepherd NE, Diness F, Fairlie DP. Constraining cyclic peptides to mimic protein structure motifs. Angew Chem Int Ed Engl 2014; 53:13020-41. [PMID: 25287434 DOI: 10.1002/anie.201401058] [Citation(s) in RCA: 306] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/02/2013] [Indexed: 12/18/2022]
Abstract
Many proteins exert their biological activities through small exposed surface regions called epitopes that are folded peptides of well-defined three-dimensional structures. Short synthetic peptide sequences corresponding to these bioactive protein surfaces do not form thermodynamically stable protein-like structures in water. However, short peptides can be induced to fold into protein-like bioactive conformations (strands, helices, turns) by cyclization, in conjunction with the use of other molecular constraints, that helps to fine-tune three-dimensional structure. Such constrained cyclic peptides can have protein-like biological activities and potencies, enabling their uses as biological probes and leads to therapeutics, diagnostics and vaccines. This Review highlights examples of cyclic peptides that mimic three-dimensional structures of strand, turn or helical segments of peptides and proteins, and identifies some additional restraints incorporated into natural product cyclic peptides and synthetic macrocyclic peptidomimetics that refine peptide structure and confer biological properties.
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Affiliation(s)
- Timothy A Hill
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072 (Australia)
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17
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Hill TA, Shepherd NE, Diness F, Fairlie DP. Fixierung cyclischer Peptide: Mimetika von Proteinstrukturmotiven. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201401058] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Greco A, Tani S, De Marco R, Gentilucci L. Synthesis and Analysis of the Conformational Preferences of 5-Aminomethyloxazolidine-2,4-dione Scaffolds: First Examples of β2- and β2, 2-Homo-Freidinger Lactam Analogues. Chemistry 2014; 20:13390-404. [PMID: 25182659 DOI: 10.1002/chem.201402519] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 07/07/2014] [Indexed: 02/01/2023]
Affiliation(s)
- Arianna Greco
- Dept. of Chemistry "G. Ciamician", University of Bologna via Selmi 2, 40126, Bologna (Italy), Fax: (+39) 0512099456
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19
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Kaur R, Ramesh M, Bharatam PV, Kishore R. Self-Association Behavior of a Novel Nonproteinogenic β-Strand-Mimic in an Organic Solvent. J Phys Chem B 2014; 118:9199-208. [DOI: 10.1021/jp5042074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Rajwant Kaur
- CSIR-Institute of Microbial Technology, Sector 39-A, Chandigarh−160 036, India
| | - Muthusamy Ramesh
- National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar−160 062, Punjab, India
| | - Prasad V. Bharatam
- National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar−160 062, Punjab, India
| | - Raghuvansh Kishore
- CSIR-Institute of Microbial Technology, Sector 39-A, Chandigarh−160 036, India
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20
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Nair RV, Baravkar SB, Ingole TS, Sanjayan GJ. Synthetic turn mimetics and hairpin nucleators: Quo Vadimus? Chem Commun (Camb) 2014; 50:13874-84. [PMID: 25051222 DOI: 10.1039/c4cc03114h] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Structural mimicry of peptides has witnessed perceptible progress in the last three decades. Reverse turn and β-hairpin units are the smallest secondary structural motifs that are some of the most scrutinized functional cores of peptides and proteins. The practice of mimicking, without altering the function of the bioactive core, ranges from conformational locking of the basic skeleton to total replacement of structural architecture using synthetic analogues. Development of heterogeneous backbones--using unnatural residues in place of natural ones--has broadened further opportunities for efficient structural rigidification. This feature article endeavours to trail the path of progress achieved hitherto and envisage the possibilities that lie ahead in the development of synthetic turn mimetics and hairpin nucleators.
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Affiliation(s)
- Roshna V Nair
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India.
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21
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Milli L, Larocca M, Tedesco M, Castellucci N, Ghibaudi E, Cornia A, Calvaresi M, Zerbetto F, Tomasini C. α,ε-Hybrid Foldamers with 1,2,3-Triazole Rings: Order versus Disorder. J Org Chem 2014; 79:5958-69. [DOI: 10.1021/jo500963n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lorenzo Milli
- Dipartimento
di Chimica “G. Ciamician”, Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy
| | - Michele Larocca
- Dipartimento
di Chimica “G. Ciamician”, Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy
| | - Mattia Tedesco
- Dipartimento
di Chimica, Università di Torino, Via P. Giuria 7, 10125 Torino, Italy
| | - Nicola Castellucci
- Dipartimento
di Chimica “G. Ciamician”, Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy
| | - Elena Ghibaudi
- Dipartimento
di Chimica, Università di Torino, Via P. Giuria 7, 10125 Torino, Italy
| | - Andrea Cornia
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia & INSTM Research Unit, Via G. Campi 183, 41125 Modena, Italy
| | - Matteo Calvaresi
- Dipartimento
di Chimica “G. Ciamician”, Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy
| | - Francesco Zerbetto
- Dipartimento
di Chimica “G. Ciamician”, Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy
| | - Claudia Tomasini
- Dipartimento
di Chimica “G. Ciamician”, Alma Mater Studiorum Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy
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22
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Nair RV, Kotmale AS, Dhokale SA, Gawade RL, Puranik VG, Rajamohanan PR, Sanjayan GJ. Formation of a pseudo-β-hairpin motif utilizing the Ant–Pro reverse turn: consequences of stereochemical reordering. Org Biomol Chem 2014; 12:774-82. [DOI: 10.1039/c3ob42016g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report a special case of pseudo-β-hairpin formation by tetrapeptide sequences featuring a two-residue Ant–Pro dipeptide motif (Ant = anthranilic acid and Pro = proline) at the loop region.
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Affiliation(s)
- Roshna V. Nair
- Division of Organic Synthesis
- National Chemical Laboratory
- Pune 411 008, India
| | - Amol S. Kotmale
- Central Material Characterization Division
- National Chemical Laboratory
- Pune 411 008, India
| | - Snehal A. Dhokale
- Central Material Characterization Division
- National Chemical Laboratory
- Pune 411 008, India
| | - Rupesh L. Gawade
- Central NMR Facility
- National Chemical Laboratory
- Pune 411 008, India
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23
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Gopinath P, Ramkumar V, Muraleedharan KM. Peptide turns through just ‘one atom’! A sulfamide group nucleates folding and stabilizes new supramolecular topologies in short peptides. CrystEngComm 2014. [DOI: 10.1039/c4ce01938e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peptide segments with centrally placed sulfamide groups showed a remarkable tendency to adopt a turn conformation and exhibited supramolecular topologies like ‘helical stacks’ and ‘hairpin sheets’ through a highly coordinated array of strong and weak hydrogen bonds.
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24
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Hammoud H, Schmitt M, Blaise E, Bihel F, Bourguignon JJ. N-Heteroarylation of Chiral α-Aminoesters by Means of Palladium-Catalyzed Buchwald–Hartwig Reaction. J Org Chem 2013; 78:7930-7. [DOI: 10.1021/jo4011427] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Hassan Hammoud
- Laboratoire d’Innovation Thérapeutique,
UMR 7200, Faculté de Pharmacie, Université de Strasbourg, 74, route du Rhin, BP 60024, 67401 Illkirch,
France
| | - Martine Schmitt
- Laboratoire d’Innovation Thérapeutique,
UMR 7200, Faculté de Pharmacie, Université de Strasbourg, 74, route du Rhin, BP 60024, 67401 Illkirch,
France
| | - Emilie Blaise
- Laboratoire d’Innovation Thérapeutique,
UMR 7200, Faculté de Pharmacie, Université de Strasbourg, 74, route du Rhin, BP 60024, 67401 Illkirch,
France
| | - Frédéric Bihel
- Laboratoire d’Innovation Thérapeutique,
UMR 7200, Faculté de Pharmacie, Université de Strasbourg, 74, route du Rhin, BP 60024, 67401 Illkirch,
France
| | - Jean-Jacques Bourguignon
- Laboratoire d’Innovation Thérapeutique,
UMR 7200, Faculté de Pharmacie, Université de Strasbourg, 74, route du Rhin, BP 60024, 67401 Illkirch,
France
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25
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Pulka K, Slupska M, Puszko A, Misiak M, Wilczek M, Kozminski W, Misicka A. Peptides and peptidoaldehydes as substrates for the Pictet-Spengler reaction. J Pept Sci 2013; 19:433-40. [PMID: 23712920 DOI: 10.1002/psc.2516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 04/10/2013] [Accepted: 04/15/2013] [Indexed: 11/09/2022]
Abstract
The Pictet-Spengler (PS) reaction was performed with various types of substrates: H-Trp-OMe and dipeptides with N-terminal Trp as arylethylamine components and Z-protected amino aldehydes and peptidoaldehydes as carbonyl components. We found that the C-terminal part of Trp derivatives did not have any influence on the stereoselectivity of the reaction and the results are the same for simple esters of Trp and dipeptides. On the contrary, the selectivity of the PS reaction with peptidoaldehydes with L configuration of the C-terminus residue is totally different from that obtained with simple L-amino aldehydes. It allows us to obtain cis stereoisomers, which cannot be isolated from the reaction with amino aldehydes. But the utility of the peptidoaldehydes as substrates for the PS reaction is reduced by the side formation of enamides which decrease the yield of cyclization.
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Affiliation(s)
- Karolina Pulka
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland.
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26
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Kaur R, Kishore R. Isostructural unbranched alkyl-chains as tools for stabilizing β-turn structure. Biopolymers 2013; 99:419-26. [DOI: 10.1002/bip.22201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 10/23/2012] [Accepted: 12/22/2012] [Indexed: 12/12/2022]
Affiliation(s)
- Rajwant Kaur
- Protein Science & Engineering Division; CSIR-Institute of Microbial Technology; Sector 39-A; Chandigarh; 160 036; India
| | - Raghuvansh Kishore
- Protein Science & Engineering Division; CSIR-Institute of Microbial Technology; Sector 39-A; Chandigarh; 160 036; India
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27
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Dutt Konar A. Conformational studies of γ-turn in pseudopeptides containing α-amino acid and conformationally constrained meta amino benzoic acid/meta nitro aniline. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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De Marco R, Greco A, Rupiani S, Tolomelli A, Tomasini C, Pieraccini S, Gentilucci L. In-peptide synthesis of di-oxazolidinone and dehydroamino acid–oxazolidinone motifs as β-turn inducers. Org Biomol Chem 2013; 11:4316-26. [DOI: 10.1039/c3ob40357b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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29
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Angelici G, Castellucci N, Tomasini C. Conformational studies on a medium size cyclopseudopeptide containing the oxazolidin-2-one moiety. J PHYS ORG CHEM 2012. [DOI: 10.1002/poc.2977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Gaetano Angelici
- Department of Chemistry; University of Basel; St. Johanns-Ring 19; CH-4056; Basel; Switzerland
| | - Nicola Castellucci
- Dipartimento di Chimica ‘G. Ciamician’; Università di Bologna; Via Selmi 2; I-40126; Bologna; Italy
| | - Claudia Tomasini
- Dipartimento di Chimica ‘G. Ciamician’; Università di Bologna; Via Selmi 2; I-40126; Bologna; Italy
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30
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Núñez-Villanueva D, Infantes L, García-López MT, González-Muñiz R, Martín-Martínez M. Azepane Quaternary Amino Acids As Effective Inducers of 310 Helix Conformations. J Org Chem 2012; 77:9833-9. [DOI: 10.1021/jo301379r] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Lourdes Infantes
- Instituto de Química Física Rocasolano (IQFR-CSIC), Serrano 119, 28006
Madrid, Spain
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31
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Durini M, Russotto E, Pignataro L, Reiser O, Piarulli U. SupraBox: Chiral Supramolecular Oxazoline Ligands. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200516] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Longhi G, Abbate S, Lebon F, Castellucci N, Sabatino P, Tomasini C. Conformational studies of Phe-rich foldamers by VCD spectroscopy and ab initio calculations. J Org Chem 2012; 77:6033-42. [PMID: 22716234 DOI: 10.1021/jo300688n] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Employing VCD spectroscopy, we demonstrate that the structural behavior of the oligomers Boc-(L-Phe-L-Oxd)(n)-OBn is similar from n = 2 to n = 6; ab initio calculations for the n = 1 case provide physical insight into the conformational properties. Further information is gained by IR, (1)H NMR, and ECD spectroscopies. ECD spectra suggest the presence of different conformations between n = 1 on one side and longer chain foldamers on the other side. VCD and absorption IR spectra in methanol solutions can be interpreted as indicative of a PPII structure. In the case of Boc-L-Phe-L-Oxd-OBn, VCD spectra in CCl(4) and detailed DFT computational analysis allow one to demonstrate that the most populated conformers exhibit backbone dihedral angles similar to those of a PPII geometry. This is a remarkable outcome, as we had previously demonstrated that the Boc-(L-Ala-D-Oxd)(n)-OBn series folds in a β-band ribbon spiral that is a subtype of the 3(10) helix.
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Affiliation(s)
- Giovanna Longhi
- Dipartimento di Scienze Biomediche e Biotecnologie, Università degli Studi di Brescia, Viale Europa 11, 25123 Brescia, Italy.
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33
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Castellucci N, Gentilucci L, Tomasini C. One-pot synthesis of poly-substituted tetramic acids for the preparation of putative turn mimics. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Núñez-Villanueva D, Bonache MÁ, Infantes L, García-López MT, Martín-Martínez M, González-Muñiz R. Quaternary α,α-2-Oxoazepane α-Amino Acids: Synthesis from Ornithine-Derived β-Lactams and Incorporation into Model Dipeptides. J Org Chem 2011; 76:6592-603. [DOI: 10.1021/jo200894d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - M. Ángeles Bonache
- Instituto de Química Médica (IQM-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Lourdes Infantes
- Instituto de Química Física Rocasolano (IQFR-CSIC), Serrano 119, 28006 Madrid, Spain
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35
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Godina TA, Lubell WD. Mimics of Peptide Turn Backbone and Side-Chain Geometry by a General Approach for Modifying Azabicyclo[5.3.0]alkanone Amino Acids. J Org Chem 2011; 76:5846-9. [DOI: 10.1021/jo2006363] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tanya A. Godina
- Département de Chimie, Université de Montréal, C. P. 6128, Succursale Centre Ville, Montréal, Québec, Canada H3C 3J7
| | - William D. Lubell
- Département de Chimie, Université de Montréal, C. P. 6128, Succursale Centre Ville, Montréal, Québec, Canada H3C 3J7
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36
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Pérez-Faginas P, Aranda MT, García-López MT, Snoeck R, Andrei G, Balzarini J, González-Muñiz R. Synthesis and SAR studies on azetidine-containing dipeptides as HCMV inhibitors. Bioorg Med Chem 2010; 19:1155-61. [PMID: 21256035 PMCID: PMC7127091 DOI: 10.1016/j.bmc.2010.12.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Accepted: 12/23/2010] [Indexed: 12/02/2022]
Abstract
SAR studies on an azetidine-containing dipeptide prototype inhibitor of HCMV are described. Three series of structurally modified analogues, involving substitutions at the N- and C-terminus, and at the C-terminal side-chain were synthesized and evaluated for antiviral activity. Aliphatic or no substituents at the C-carboxamide group, an aliphatic C-terminal side-chain, as well as a benzyloxycarbonyl moiety at the N-terminus were absolute requirements for anti-HCMV activity. The conformational restriction induced by the 2-azetidine residue into the dipeptide derivatives, identified by 1H NMR as a γ-type reverse turn, seems to have influence on the activity of these molecules.
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Affiliation(s)
- Paula Pérez-Faginas
- Instituto de Química Médica (CSIC), Juna de la Cierva, 3, 28006 Madrid, Spain
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37
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Allin SM, Towler J, Gaskell SN, Saha B, Martin WP, Page PCB, Edgar M. Enolate amination and derivatization of a pyrroloisoquinoline template: towards novel peptidomimetics. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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38
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Cipolla L, Airoldi C, Bini D, Gregori M, Marcelo F, Jiménez-Barbero J, Nicotra F. Fructose-Based Proline Analogues: Exploring the Prolyl trans/cis-Amide Rotamer Population in Model Peptides. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000983] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Pignataro L, Carboni S, Civera M, Colombo R, Piarulli U, Gennari C. PhthalaPhos: Chiral Supramolecular Ligands for Enantioselective Rhodium-Catalyzed Hydrogenation Reactions. Angew Chem Int Ed Engl 2010; 49:6633-7. [DOI: 10.1002/anie.201002958] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Pignataro L, Carboni S, Civera M, Colombo R, Piarulli U, Gennari C. PhthalaPhos: Chiral Supramolecular Ligands for Enantioselective Rhodium-Catalyzed Hydrogenation Reactions. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002958] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Lesma G, Landoni N, Sacchetti A, Silvani A. The spiropiperidine-3,3′-oxindole scaffold: a type II β-turn peptide isostere. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.077] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Baeza JL, Gerona-Navarro G, Thompson K, Pérez de Vega MJ, Infantes L, García-López MT, González-Muñiz R, Martín-Martínez M. Further Evidence for 2-Alkyl-2-carboxyazetidines as γ-Turn Inducers. J Org Chem 2009; 74:8203-11. [DOI: 10.1021/jo901712x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José Luis Baeza
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | | | - Kevin Thompson
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | | | - Lourdes Infantes
- Instituto de Química Física Rocasolano (CSIC), Serrano 119, 28006 Madrid, Spain
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Tetrahydroisoquinoline-Based Spirocyclic Lactam as a Type II′ β-Turn Inducing Peptide Mimetic. J Org Chem 2009; 74:8098-105. [DOI: 10.1021/jo901480d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Angelici G, Falini G, Hofmann HJ, Huster D, Monari M, Tomasini C. Nanofibers from oxazolidi-2-one containing hybrid foldamers: what is the right molecular size? Chemistry 2009; 15:8037-8048. [PMID: 19360839 DOI: 10.1002/chem.200900185] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A series of oligomers of the type Boc-(L-Phe-D-Oxd)(n)-OBn (Boc = tert-butoxycarbonyl; Oxd = 4-methyl-5-carboxy oxazolidin-2-one; Bn = benzyl) were prepared for n = 2-5. The shortest oligomer, Boc-(L-Phe-D-Oxd)(2)-OBn, aggregates and forms a fiber-like material with an anti-parallel beta-sheet structure in which the oligopeptide units are connected to each other by only one intermolecular hydrogen bond. The longer oligomers exhibit structural heterogeneity. They start to organize into secondary structures by the formation of intramolecular hydrogen bonds at the pentamer level. Microscopy and diffraction of the oligomers indicated a crystalline character for only the shorter ones.
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Affiliation(s)
- Gaetano Angelici
- Dipartimento di Chimica G. Ciamician, Alma Mater Studiorum Università di Bologna, Via Selmi 21, 40126 Bologna, Italy
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Torres E, Acosta-Silva C, Rúa F, Álvarez-Larena Á, Parella T, Branchadell V, Ortuño RM. Synthesis and structural study of novel dimethylcyclobutyl β-peptides. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.05.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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46
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Trabocchi A, Sladojevich F, Guarna A. Configurationally driven folding of model tetrapeptides containing L- or D-morpholine-3-carboxylic acids as β-turn nucleators. Chirality 2009; 21:584-94. [DOI: 10.1002/chir.20647] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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47
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Fustero S, Mateu N, Albert L, Aceña JL. Straightforward Stereoselective Access to Cyclic Peptidomimetics. J Org Chem 2009; 74:4429-32. [DOI: 10.1021/jo900679c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - Natalia Mateu
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - Laia Albert
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - José Luis Aceña
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
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48
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Fustero S, Chiva G, Piera J, Sanz-Cervera JF, Volonterio A, Zanda M, Ramirez de Arellano C. New Fluorinated Peptidomimetics through Tandem Aza-Michael Addition to α-Trifluoromethyl Acrylamide Acceptors: Synthesis and Conformational Study in Solid State and Solution. J Org Chem 2009; 74:3122-32. [PMID: 19309123 DOI: 10.1021/jo9001867] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain, Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46013 Valencia, Spain, Dipartimento di Chimica, Materiali, ed Ingegnieria Chimica “Giulio Natta” Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy, and C.N.R.-Istituto di Chimica del Riconoscimento Molecolare (ICRM) via Mancinelli 7, 20131 Milano, Italy
| | - Gema Chiva
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain, Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46013 Valencia, Spain, Dipartimento di Chimica, Materiali, ed Ingegnieria Chimica “Giulio Natta” Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy, and C.N.R.-Istituto di Chimica del Riconoscimento Molecolare (ICRM) via Mancinelli 7, 20131 Milano, Italy
| | - Julio Piera
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain, Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46013 Valencia, Spain, Dipartimento di Chimica, Materiali, ed Ingegnieria Chimica “Giulio Natta” Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy, and C.N.R.-Istituto di Chimica del Riconoscimento Molecolare (ICRM) via Mancinelli 7, 20131 Milano, Italy
| | - Juan F. Sanz-Cervera
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain, Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46013 Valencia, Spain, Dipartimento di Chimica, Materiali, ed Ingegnieria Chimica “Giulio Natta” Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy, and C.N.R.-Istituto di Chimica del Riconoscimento Molecolare (ICRM) via Mancinelli 7, 20131 Milano, Italy
| | - Alessandro Volonterio
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain, Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46013 Valencia, Spain, Dipartimento di Chimica, Materiali, ed Ingegnieria Chimica “Giulio Natta” Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy, and C.N.R.-Istituto di Chimica del Riconoscimento Molecolare (ICRM) via Mancinelli 7, 20131 Milano, Italy
| | - Matteo Zanda
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain, Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46013 Valencia, Spain, Dipartimento di Chimica, Materiali, ed Ingegnieria Chimica “Giulio Natta” Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy, and C.N.R.-Istituto di Chimica del Riconoscimento Molecolare (ICRM) via Mancinelli 7, 20131 Milano, Italy
| | - Carmen Ramirez de Arellano
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain, Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46013 Valencia, Spain, Dipartimento di Chimica, Materiali, ed Ingegnieria Chimica “Giulio Natta” Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy, and C.N.R.-Istituto di Chimica del Riconoscimento Molecolare (ICRM) via Mancinelli 7, 20131 Milano, Italy
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49
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Scheffelaar R, Nijenhuis RAK, Paravidino M, Lutz M, Spek AL, Ehlers AW, de Kanter FJJ, Groen MB, Orru RVA, Ruijter E. Synthesis of Conformationally Constrained Peptidomimetics using Multicomponent Reactions. J Org Chem 2008; 74:660-8. [DOI: 10.1021/jo802052j] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rachel Scheffelaar
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Roel A. Klein Nijenhuis
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Monica Paravidino
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Martin Lutz
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Anthony L. Spek
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Andreas W. Ehlers
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Frans J. J. de Kanter
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Marinus B. Groen
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Eelco Ruijter
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
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Pérez de Vega MJ, Baeza JL, García-López MT, Vila-Perelló M, Jiménez-Castells C, Simón AM, Frechilla D, del Río J, Gutiérrez-Gallego R, Andreu D, González-Muñiz R. Synthesis and biological properties of β-turned Aβ31–35 constrained analogues. Bioorg Med Chem Lett 2008; 18:2078-82. [DOI: 10.1016/j.bmcl.2008.01.092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Revised: 01/23/2008] [Accepted: 01/24/2008] [Indexed: 10/22/2022]
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