1
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Chavan ND, Vijayakumar V. Synthesis, DFT studies on a series of tunable quinoline derivatives. RSC Adv 2024; 14:21089-21101. [PMID: 38966815 PMCID: PMC11223029 DOI: 10.1039/d4ra03961k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 06/25/2024] [Indexed: 07/06/2024] Open
Abstract
The synthesis, Density Functional Theory (DFT) calculations, and photo physical characteristics of a range of quinoline derivatives have been described in the present work. Initially, the innovative derivatives are synthesized through the cyclization of 2-amino-5-nitrobenzophenone with either acetyl acetone or ethyl acetoacetate, followed by reducing the nitro group to an amine. Subsequently, these compounds undergo an acid-amine cross-coupling reaction. The investigation shows the DFT and photo physical properties of these substances. It is noteworthy that compound 6z exhibits the most remarkable Stokes shift among the fluorophores investigated. Furthermore, the research also provides insights into the electrophilicity index, Electronegativity, chemical potential, chemical hardness and softness properties. These properties are determined by utilizing Density Functional Theory (DFT) calculations and evaluating electron potential efficiency and using computational methods Time-Dependent Density Functional Theory (TD-DFT) to predict absorption spectra in molecules at the B3LYP/6-31G'(d,p) level/basis.
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Affiliation(s)
- Nagesh Dhanaji Chavan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore 632016 India
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2
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Singh N, Abrol V, Parihar S, Kumar S, Khanum G, Mir JM, Dar AA, Jaglan S, Sillanpää M, Al-Farraj S. Design, Synthesis, Molecular Docking, and In Vitro Antibacterial Evaluation of Benzotriazole-Based β-Amino Alcohols and Their Corresponding 1,3-Oxazolidines. ACS OMEGA 2023; 8:41960-41968. [PMID: 37969976 PMCID: PMC10634288 DOI: 10.1021/acsomega.3c07315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 11/17/2023]
Abstract
In the present study, a series of benzotriazole-based β-amino alcohols were efficiently synthesized in excellent yields via aminolysis of benzotriazolated epoxides under catalyst- and solvent-free conditions. Further these β-amino alcohols were successfully utilized to synthesize the corresponding benzotriazole-based oxazolidine heterocyclic derivatives. All the synthesized compounds were characterized by various spectroscopic techniques such as 1H NMR, 13C NMR, and mass spectroscopy for structure elucidation. The compounds were subjected to a microtiter plate-based antimicrobial assay. The antimicrobial activity results reveal that the compounds 4a, 4e, and 5f were found to be active against Staphylococcus aureus (ATCC-25923) with minimum inhibitory concentrations (MICs) of 32, 8, and 64 μM, respectively. Also, the compounds 4a, 4e, 4k, 4i, 4m, 4n, 4o, 5d, 5e, 5f, 5g, and 5h showed effective activity against Bacillus subtilis (ATCC 6633) with MICs of 64, 16, 16, 16, 64, 16, 64, 64, 32, 64, 8, and 16 μM, respectively. A biological investigation was conducted, including molecular docking of two compounds with several receptors to identify and confirm the best ligand-protein interactions. Hence, this study found a significant strategy to diversify the chemical molecules. The synthesized compounds play a potential role as an antibacterial intensifier against some pathogenic bacteria for the development of antibacterial substances.
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Affiliation(s)
- Nasseb Singh
- Synthetic
Organic Chemistry Laboratory, School of Biotechnology, Faculty of
Sciences, Shri Mata Vaishno Devi University, Katra, Jammu & Kashmir 182320, India
- Department
of Chemistry, Govt. Degree College Udhampur, Jammu and Kashmir 182101, India
| | - Vidushi Abrol
- Fermentation
& Microbial Biotechnology Division, CSIR-Indian Institute of Integrative Medicine Canal Road, Jammu, Jammu & Kashmir 180001, India
| | - Sarita Parihar
- Department
of Physics, Govt. Degree College Udhampur, Jammu and Kashmir 182101, India
| | - Satish Kumar
- Department
of Chemistry, Govt. Degree College Udhampur, Jammu and Kashmir 182101, India
| | - Ghazala Khanum
- Department
of Chemistry, Govt. Degree College Udhampur, Jammu and Kashmir 182101, India
| | - Jan Mohammad Mir
- Department
of Chemistry, Islamic University of Science
and Technology (IUST)Awantipora, Pulwama, J&K 192301, India
| | - Alamgir Ahmad Dar
- Research
Centre for Residue and Quality Analysis, Sher-e-Kashmir University
of Agricultural Sciences and Technology (SKUAST-K), Shalimar Campus, Srinagar, Jammu & Kashmir 190025, India
| | - Sundeep Jaglan
- Fermentation
& Microbial Biotechnology Division, CSIR-Indian Institute of Integrative Medicine Canal Road, Jammu, Jammu & Kashmir 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Mika Sillanpää
- Department
of Biological and Chemical Engineering, Aarhus University, Nørrebrogade
44, Aarhus 8000, Denmark
- Department
of Chemical Engineering, School of Mining, Metallurgy and Chemical
Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
| | - Saleh Al-Farraj
- Department
of Zoology, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
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3
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Chen D, Xu L, Ren B, Wang Z, Liu C. Triflylpyridinium as Coupling Reagent for Rapid Amide and Ester Synthesis. Org Lett 2023. [PMID: 37290965 DOI: 10.1021/acs.orglett.3c01598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An effective method has been developed to facilitate the synthesis of amides and esters at ambient temperature within 5 min, in which a stable and easily accessible triflylpyridinium reagent is used. Remarkably, this method not only has a wide range of substrate compatibility but also could realize the scalable synthesis of peptide and ester via a continuous flow process. Moreover, excellent chirality retentions are presented during activation of carboxylic acid.
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Affiliation(s)
- Du Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liangxuan Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bowen Ren
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zian Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Liu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Lisi D, Vezzoni CA, Casnati A, Sansone F, Salvio R. Intra- and Intermolecular Cooperativity in the Catalytic Activity of Phosphodiester Cleavage by Self-Assembled Systems Based on Guanidinylated Calix[4]arenes. Chemistry 2023; 29:e202203213. [PMID: 36382737 DOI: 10.1002/chem.202203213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 11/17/2022]
Abstract
The calix[4]arene scaffold, blocked in the cone conformation through alkylation with long alkyl chains, and decorated at the upper rim with four guanidine or arginine units, effectively catalyzes the cleavage of the phosphodiester bond of DNA and RNA model compounds in water. An exhaustive kinetic investigation unequivocally points to the existence of spontaneous aggregation phenomena, driven by hydrophobic effect, occurring at different critical concentrations that depend on the identity of the compound. A pronounced superiority of the assembled structures compared with the monomers in solution was observed. Moreover, the catalytically active units, clustered on the macrocyclic tetrafunctional scaffold, were proved to efficiently cooperate in the catalytic mechanism and result in improved reaction rates compared to those of the monofunctional model compounds. The kinetic analysis is also integrated and corroborated with further experiments based on fluorescence spectroscopy and light scattering. The advantage of the supramolecular assemblies based on tetrafunctional calixarenes leads to believe that the active units can cooperate not only intramolecularly but also intermolecularly. The molecules in the aggregates can probably mold, flex and rearrange but, at the same time, keep an ordered structure that favors phosphodiester bond cleavage. This dynamic preorganization can allow the catalytic units to reach a better fitting with the substrates and perform a superior catalytic activity.
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Affiliation(s)
- Daniele Lisi
- Dipartimento di Scienze e Tecnologie Chimiche, Università "Tor Vergata", Via della Ricerca Scientifica, 1, 00133, Roma, Italy
| | - Carlo Alberto Vezzoni
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Alessandro Casnati
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Francesco Sansone
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Riccardo Salvio
- Dipartimento di Scienze e Tecnologie Chimiche, Università "Tor Vergata", Via della Ricerca Scientifica, 1, 00133, Roma, Italy.,ISB - CNR Sezione Meccanismi di Reazione, Università La Sapienza, 00185, Roma, Italy
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5
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Gomaa MS, Ali IAI, El Enany G, El Ashry ESH, El Rayes SM, Fathalla W, Ahmed AHA, Abubshait SA, Abubshait HA, Nafie MS. Facile Synthesis of Some Coumarin Derivatives and Their Cytotoxicity through VEGFR2 and Topoisomerase II Inhibition. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238279. [PMID: 36500372 PMCID: PMC9737644 DOI: 10.3390/molecules27238279] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022]
Abstract
Novel semisynthetic coumarin derivatives were synthesized to be developed as chemotherapeutic anticancer agents through topoisomerase II, VEGFR2 inhibition that leads to apoptotic cancer cell death. The coumarin amino acids and dipeptides derivatives were prepared by the reaction of coumarin-3-carboxylic acid with amino acid methyl esters following the N,N-dicyclohexylcarbodiimide (DCC) method and 1-hydroxy-benzotriazole (HOBt), as coupling reagents. The synthesized compounds were screened towards VEGFR2, and topoisomerase IIα proteins to highlight their binding affinities and virtual mechanism of binding. Interestingly, compounds 4k (Tyr) and 6c (β-Ala-L-Met) shared the activity towards the three proteins by forming the same interactions with the key amino acids, such as the co-crystallized ligands. Both compounds 4k and 6c exhibited potent cytotoxic activities against MCF-7 cells with IC50 values of 4.98 and 5.85 µM, respectively causing cell death by 97.82 and 97.35%, respectively. Validating the molecular docking studies, both compounds demonstrated promising VEGFR-2 inhibition with IC50 values of 23.6 and 34.2 µM, compared to Sorafenib (30 µM) and topoisomerase-II inhibition with IC50 values of 4.1 and 8.6 µM compared to Doxorubicin (9.65 µM). Hence, these two promising compounds could be further tested as effective and selective target-oriented active agents against cancer.
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Affiliation(s)
- Mohamed S. Gomaa
- Department of Pharmaceutical Chemistry, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Ibrahim A. I. Ali
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Gaber El Enany
- Department of Physics, College of Science and Arts in Uglat Asugour, Qassim University, Buraidah 52571, Saudi Arabia
- Scientific Department, Faculty of Engineering, Port Said University, Port Said 42526, Egypt
| | - El Sayed H. El Ashry
- Chemistry Department, Faculty of Science, University of Alexandria, Alexandria 21526, Egypt
| | - Samir M. El Rayes
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: or
| | - Walid Fathalla
- Scientific Department, Faculty of Engineering, Port Said University, Port Said 42526, Egypt
| | - Abdulghany H. A. Ahmed
- Chemistry Department, Faculty of Medicinal Science, University of Science and Technology, Aden 15201, Yemen
| | - Samar A. Abubshait
- Chemistry Department, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
- Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Haya A. Abubshait
- Basic Science Department, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Mohamed S. Nafie
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
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6
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Manne SR, Akintayo DC, Luna O, El-Faham A, de la Torre BG, Albericio F. tert-Butylethylcarbodiimide as an Efficient Substitute for Diisopropylcarbodiimide in Solid-Phase Peptide Synthesis: Understanding the Side Reaction of Carbodiimides with OxymaPure. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Srinivasa Rao Manne
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
| | - Damilola Caleb Akintayo
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
| | - Omar Luna
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
| | - Ayman El-Faham
- Department of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, Alexandria 21321, Egypt
| | - Beatriz G. de la Torre
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Fernando Albericio
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
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7
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Lewandowska-Andralojc A, Gacka E, Pedzinski T, Burdzinski G, Lindner A, O'Brien JM, Senge MO, Siklitskaya A, Kubas A, Marciniak B, Walkowiak-Kulikowska J. Understanding structure-properties relationships of porphyrin linked to graphene oxide through π-π-stacking or covalent amide bonds. Sci Rep 2022; 12:13420. [PMID: 35927398 PMCID: PMC9352710 DOI: 10.1038/s41598-022-16931-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/18/2022] [Indexed: 11/09/2022] Open
Abstract
Two graphene oxide nanoassemblies using 5-(4-(aminophenyl)-10,15,20-triphenylporphyrin (TPPNH2) were fabricated by two synthetic methods: covalent (GO-CONHTPP) and noncovalent bonding. GO-CONHTPP was achieved through amide formation at the periphery of GO sheets and the hybrid material was fully characterized by FTIR, XPS, Raman spectroscopy, and SEM. Spectroscopic measurements together with theoretical calculations demonstrated that assembling TPPNH2 on the GO surface in DMF-H2O (1:2, v/v) via non-covalent interactions causes changes in the absorption spectra of porphyrin, as well as efficient quenching of its emission. Interestingly, covalent binding to GO does not affect notably neither the porphyrin absorption nor its fluorescence. Theoretical calculations indicates that close proximity and π-π-stacking of the porphyrin molecule with the GO sheet is possible only for the non-covalent functionalization. Femtosecond pump-probe experiments revealed that only the non-covalent assembly of TPPNH2 and GO enhances the efficiency of the photoinduced electron transfer from porphyrin to GO. In contrast to the non-covalent hybrid, the covalent GO-CONHTPP material can generate singlet oxygen with quantum yields efficiency (ΦΔ = 0.20) comparable to that of free TPPNH2 (ΦΔ = 0.26), indicating the possible use of covalent hybrid materials in photodynamic/photothermal therapy. The spectroscopic studies combined with detailed quantum-chemical analysis provide invaluable information that can guide the fabrication of hybrid materials with desired properties for specific applications.
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Affiliation(s)
- Anna Lewandowska-Andralojc
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland. .,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland.
| | - Ewelina Gacka
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Tomasz Pedzinski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Gotard Burdzinski
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61-614, Poznan, Poland
| | - Aleksandra Lindner
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Jessica M O'Brien
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Mathias O Senge
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland.,Institute for Advanced Study (TUM-IAS), Focus Group-Molecular and Interfacial Engineering of Organic Nanosystems, Technical University of Munich, 85748, Garching, Germany
| | - Aleksandra Siklitskaya
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Adam Kubas
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Bronislaw Marciniak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
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8
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Yang Y, Hansen L, Baldi A. Suppression of Simultaneous Fmoc-His(Trt)-OH Racemization and Nα-DIC-Endcapping in Solid-Phase Peptide Synthesis through Design of Experiments and Its Implication for an Amino Acid Activation Strategy in Peptide Synthesis. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi Yang
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Amager Strandvej 405, Kastrup 2770, Denmark
| | - Lena Hansen
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Amager Strandvej 405, Kastrup 2770, Denmark
| | - Alberto Baldi
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Amager Strandvej 405, Kastrup 2770, Denmark
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9
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Manne S, Sharma A, Sazonovas A, El-Faham A, de la Torre BG, Albericio F. Understanding OxymaPure as a Peptide Coupling Additive: A Guide to New Oxyma Derivatives. ACS OMEGA 2022; 7:6007-6023. [PMID: 35224362 PMCID: PMC8867806 DOI: 10.1021/acsomega.1c06342] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
An in silico study, using the GALAS algorithm available in ACD/PhysChem Suite, was performed to calculate the pK a(s) of various oximes with potential application as peptide coupling additives. Among the known oximes and predicted structures, OxymaPure is superior based on the pK a values calculated, confirming the results described in the literature and validating this algorithm for further use in that field. Among the nondescribed oximes, based on pK a calculation, ethyl 2-(hydroxyimino)-2-nitroacetate seems to be a potential candidate to be used as an additive during peptide coupling.
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Affiliation(s)
- Srinivasa
Rao Manne
- Peptide
Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
| | - Anamika Sharma
- Peptide
Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
- KwaZulu-Natal
Research Innovation and Sequencing Platform (KRISP), School of Laboratory
Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South
Africa
- Department
of Chemistry, Prayoga Institute of Education
Research (PIER), Bangalore 560082, India
| | - Andrius Sazonovas
- Advanced
Chemistry Development, Inc. (ACD/Labs), 8 King Street East, Suite 107, Toronto, Ontario M5C 1B5, Canada
| | - Ayman El-Faham
- Department
of Chemistry, Faculty of Science, Alexandria
University, P.O. Box 426,
Ibrahimia, Alexandria 21321, Egypt
| | - Beatriz G. de la Torre
- Peptide
Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
- KwaZulu-Natal
Research Innovation and Sequencing Platform (KRISP), School of Laboratory
Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South
Africa
| | - Fernando Albericio
- Peptide
Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
- Institute
for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
- CIBER-BBN,
Networking Centre on Bioengineering, Biomaterials and Nanomedicine,
and Department of Organic Chemistry, University
of Barcelona, Martí
i Franqués 1-11, 08028 Barcelona, Spain
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10
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Witkowska E, Godlewska M, Osiejuk J, Gątarz S, Wileńska B, Kosińska K, Starnowska-Sokół J, Piotrowska A, Lipiński PFJ, Matalińska J, Dyniewicz J, Halik PK, Gniazdowska E, Przewlocka B, Misicka A. Bifunctional Opioid/Melanocortin Peptidomimetics for Use in Neuropathic Pain: Variation in the Type and Length of the Linker Connecting the Two Pharmacophores. Int J Mol Sci 2022; 23:674. [PMID: 35054860 PMCID: PMC8775902 DOI: 10.3390/ijms23020674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 01/25/2023] Open
Abstract
Based on the mechanism of neuropathic pain induction, a new type of bifunctional hybrid peptidomimetics was obtained for potential use in this type of pain. Hybrids consist of two types of pharmacophores that are connected by different types of linkers. The first pharmacophore is an opioid agonist, and the second pharmacophore is an antagonist of the pronociceptive system, i.e., an antagonist of the melanocortin-4 receptor. The results of tests in acute and neuropathic pain models of the obtained compounds have shown that the type of linker used to connect pharmacophores had an effect on antinociceptive activity. Peptidomimetics containing longer flexible linkers were very effective at low doses in the neuropathic pain model. To elucidate the effect of linker lengths, two hybrids showing very high activity and two hybrids with lower activity were further tested for affinity for opioid (mu, delta) and melanocortin-4 receptors. Their complexes with the target receptors were also studied by molecular modelling. Our results do not show a simple relationship between linker length and affinity for particular receptor types but suggest that activity in neuropathic pain is related to a proper balance of receptor affinity rather than maximum binding to any or all of the target receptors.
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Affiliation(s)
- Ewa Witkowska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (M.G.); (J.O.); (S.G.); (B.W.); (K.K.)
| | - Magda Godlewska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (M.G.); (J.O.); (S.G.); (B.W.); (K.K.)
| | - Jowita Osiejuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (M.G.); (J.O.); (S.G.); (B.W.); (K.K.)
| | - Sandra Gątarz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (M.G.); (J.O.); (S.G.); (B.W.); (K.K.)
| | - Beata Wileńska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (M.G.); (J.O.); (S.G.); (B.W.); (K.K.)
- Biological and Chemical Research Centre, University of Warsaw, 101 Zwirki i Wigury St., 02-097 Warsaw, Poland
| | - Katarzyna Kosińska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (M.G.); (J.O.); (S.G.); (B.W.); (K.K.)
| | - Joanna Starnowska-Sokół
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Str., 31-343 Krakow, Poland; (J.S.-S.); (A.P.); (B.P.)
| | - Anna Piotrowska
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Str., 31-343 Krakow, Poland; (J.S.-S.); (A.P.); (B.P.)
| | - Piotr F. J. Lipiński
- Department of Neuropeptides, Mossakowski Medical Research Institute Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (P.F.J.L.); (J.M.); (J.D.)
| | - Joanna Matalińska
- Department of Neuropeptides, Mossakowski Medical Research Institute Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (P.F.J.L.); (J.M.); (J.D.)
| | - Jolanta Dyniewicz
- Department of Neuropeptides, Mossakowski Medical Research Institute Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland; (P.F.J.L.); (J.M.); (J.D.)
| | - Paweł K. Halik
- Centre of Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (P.K.H.); (E.G.)
| | - Ewa Gniazdowska
- Centre of Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (P.K.H.); (E.G.)
| | - Barbara Przewlocka
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Str., 31-343 Krakow, Poland; (J.S.-S.); (A.P.); (B.P.)
| | - Aleksandra Misicka
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (M.G.); (J.O.); (S.G.); (B.W.); (K.K.)
- Biological and Chemical Research Centre, University of Warsaw, 101 Zwirki i Wigury St., 02-097 Warsaw, Poland
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11
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Amide Bond Formation via the Rearrangement of Nitrile Imines Derived from N-2-Nitrophenyl Hydrazonyl Bromides. Org Lett 2021; 24:334-338. [PMID: 34964648 PMCID: PMC8762704 DOI: 10.1021/acs.orglett.1c03993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report how the rearrangement of highly reactive nitrile imines derived from N-2-nitrophenyl hydrazonyl bromides can be harnessed for the facile construction of amide bonds. This amidation reaction was found to be widely applicable to the synthesis of primary, secondary, and tertiary amides and was used as the key step in the synthesis of the lipid-lowering agent bezafibrate. The orthogonality and functional group tolerance of this approach was exemplified by the N-acylation of unprotected amino acids.
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12
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Nasi GI, Aktypi FD, Spatharas PM, Louros NN, Tsiolaki PL, Magafa V, Trougakos IP, Iconomidou VA. Arabidopsis thaliana Plant Natriuretic Peptide Active Domain Forms Amyloid-like Fibrils in a pH-Dependent Manner. PLANTS (BASEL, SWITZERLAND) 2021; 11:9. [PMID: 35009013 PMCID: PMC8747288 DOI: 10.3390/plants11010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 11/17/2022]
Abstract
Plant natriuretic peptides (PNPs) are hormones that have been extracted from many different species, with the Arabidopsis thaliana PNP (AtPNP-A) being the most studied among them. AtPNP-A is a signaling molecule that consists of 130 residues and is secreted into the apoplast, under conditions of biotic or abiotic stress. AtPNP-A has distant sequence homology with human ANP, a protein that forms amyloid fibrils in vivo. In this work, we investigated the amyloidogenic properties of a 34-residue-long peptide, located within the AtPNP-A sequence, in three different pH conditions, using transmission electron microscopy, X-ray fiber diffraction, ATR FT-IR spectroscopy, Congo red and Thioflavin T staining assays. We also utilize bioinformatics tools to study its association with known plant amyloidogenic proteins and other A. thaliana proteins. Our results reveal a new case of a pH-dependent amyloid forming peptide in A. thaliana, with a potential functional role.
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Affiliation(s)
- Georgia I. Nasi
- Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece; (G.I.N.); (F.D.A.); (P.M.S.); (N.N.L.); (P.L.T.); (I.P.T.)
| | - Foteini D. Aktypi
- Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece; (G.I.N.); (F.D.A.); (P.M.S.); (N.N.L.); (P.L.T.); (I.P.T.)
| | - Panagiotis M. Spatharas
- Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece; (G.I.N.); (F.D.A.); (P.M.S.); (N.N.L.); (P.L.T.); (I.P.T.)
| | - Nikolaos N. Louros
- Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece; (G.I.N.); (F.D.A.); (P.M.S.); (N.N.L.); (P.L.T.); (I.P.T.)
| | - Paraskevi L. Tsiolaki
- Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece; (G.I.N.); (F.D.A.); (P.M.S.); (N.N.L.); (P.L.T.); (I.P.T.)
| | - Vassiliki Magafa
- Department of Pharmacy, University of Patras, 265 04 Patras, Greece;
| | - Ioannis P. Trougakos
- Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece; (G.I.N.); (F.D.A.); (P.M.S.); (N.N.L.); (P.L.T.); (I.P.T.)
| | - Vassiliki A. Iconomidou
- Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece; (G.I.N.); (F.D.A.); (P.M.S.); (N.N.L.); (P.L.T.); (I.P.T.)
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13
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Manne SR, El-Faham A, de la Torre BG, Albericio F. Minimizing side reactions during amide formation using DIC and oxymapure in solid-phase peptide synthesis. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Manne SR, Luna O, Acosta GA, Royo M, El-Faham A, Orosz G, de la Torre BG, Albericio F. Amide Formation: Choosing the Safer Carbodiimide in Combination with OxymaPure to Avoid HCN Release. Org Lett 2021; 23:6900-6904. [PMID: 34424718 DOI: 10.1021/acs.orglett.1c02466] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
It has been reported that DIC can react with OxymaPure to render an oxadiazole compound with the concomitant formation of HCN. Here we demonstrate that this reaction is not a feature of all carbodiimides but rather depends on the alkyl structure that flanks the two N atoms of the carbodiimide. Furthermore, we have identified two carbodiimides, TBEC and EDC·HCl, whose reaction with OxymaPure is exempt from HCN formation.
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Affiliation(s)
- Srinivasa Rao Manne
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Omar Luna
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
| | - Gerardo A Acosta
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
| | - Miriam Royo
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
| | - Ayman El-Faham
- Department of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, Alexandria 21321, Egypt
| | - Gyorgy Orosz
- Luxembourg Bio Technologies, Ness Ziona 7403631, Israel
| | - Beatriz G de la Torre
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Fernando Albericio
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa.,Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
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15
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Králová P, Soural M. Reagent-Based Diversity-Oriented Synthesis of Triazolo[1,5- a][1,4]diazepine Derivatives from Polymer-Supported Homoazidoalanine. J Org Chem 2021; 86:7963-7974. [PMID: 34060832 DOI: 10.1021/acs.joc.1c00293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report the synthesis of skeletally different triazolo[1,5-a][1,4]diazepines starting from immobilized homoazidoalanine. After sulfonylation with 2/4-nitrobenzenesulfonyl chlorides and Mitsunobu alkylation with various alkynols, the corresponding N-substituted nitrobenzenesulfonamides were obtained. Their catalyst-free Huisgen cycloaddition provided immobilized and functionalized triazolo[1,5-a][1,4]diazepines as the key intermediates for further modification. Using the concept of diversity-oriented, reagent-based synthesis, the key intermediates were subsequently converted to heterocycles bearing [5 + 7 + 5], [5 + 7 + 6], and [5 + 7 + 7] scaffolds. Furthermore, the synthesis of spirocyclic triazolodiazepines was developed.
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Affiliation(s)
- Petra Králová
- Department of Organic Chemistry, Faculty of Science, Palacký University, Olomouc 779 00, Czech Republic
| | - Miroslav Soural
- Department of Organic Chemistry, Faculty of Science, Palacký University, Olomouc 779 00, Czech Republic.,Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 5, Olomouc 779 00, Czech Republic
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16
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Qiu J, Meng F, Wang M, Huang J, Wang C, Li X, Yang G, Hua Z, Chen T. Recyclable DMAP-Functionalized polymeric nanoreactors for highly efficient acylation of alcohols in aqueous systems. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123660] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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17
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Wei M, Liang D, Cao X, Luo W, Ma G, Liu Z, Li L. A Broad‐Spectrum Catalytic Amidation of Sulfonyl Fluorides and Fluorosulfates**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mingjie Wei
- PCFM Lab and GDHPRC Lab School of Chemistry Sun Yat-sen University Guangzhou 510275 P. R. China
| | - Dacheng Liang
- PCFM Lab and GDHPRC Lab School of Chemistry Sun Yat-sen University Guangzhou 510275 P. R. China
| | - Xiaohui Cao
- School of Pharmacy Guangdong Pharmaceutical University Guangzhou 510006 P. R. China
| | - Wenjun Luo
- PCFM Lab and GDHPRC Lab School of Chemistry Sun Yat-sen University Guangzhou 510275 P. R. China
| | - Guojian Ma
- PCFM Lab and GDHPRC Lab School of Chemistry Sun Yat-sen University Guangzhou 510275 P. R. China
| | - Zeyuan Liu
- PCFM Lab and GDHPRC Lab School of Chemistry Sun Yat-sen University Guangzhou 510275 P. R. China
| | - Le Li
- PCFM Lab and GDHPRC Lab School of Chemistry Sun Yat-sen University Guangzhou 510275 P. R. China
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18
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Wei M, Liang D, Cao X, Luo W, Ma G, Liu Z, Li L. A Broad-Spectrum Catalytic Amidation of Sulfonyl Fluorides and Fluorosulfates*. Angew Chem Int Ed Engl 2021; 60:7397-7404. [PMID: 33337566 DOI: 10.1002/anie.202013976] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/30/2020] [Indexed: 12/18/2022]
Abstract
A broad-spectrum, catalytic method has been developed for the synthesis of sulfonamides and sulfamates. With the activation by the combination of a catalytic amount of 1-hydroxybenzotriazole (HOBt) and silicon additives, amidations of sulfonyl fluorides and fluorosulfates proceeded smoothly and excellent yields were generally obtained (87-99 %). Noticeably, this protocol is particularly efficient for sterically hindered substrates. Catalyst loading is generally low and only 0.02 mol % of catalyst is required for the multidecagram-scale synthesis of an amantadine derivative. In addition, the potential of this method in medicinal chemistry has been demonstrated by the synthesis of the marketed drug Fedratinib via a key intermediate sulfonyl fluoride 13. Since a large number of amines are commercially available, this route provides a facile entry to access Fedratinib analogues for biological screening.
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Affiliation(s)
- Mingjie Wei
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Dacheng Liang
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xiaohui Cao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Wenjun Luo
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Guojian Ma
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Zeyuan Liu
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Le Li
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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19
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Al Musaimi O, Wisdom R, Talbiersky P, De La Torre BG, Albericio F. Propylphosphonic Anhydride (T3P®) as Coupling Reagent for Solid‐Phase Peptide Synthesis. ChemistrySelect 2021. [DOI: 10.1002/slct.202100123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Othman Al Musaimi
- Peptide Science Laboratory School of Chemistry and Physics University of KwaZulu-Natal Durban 4000 South Africa
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP) School of Laboratory Medicine and Medical Sciences College of Health Sciences University of KwaZulu-Natal Durban 4000 South Africa
| | - Richard Wisdom
- Euticals GmbH Industriepark Höchst D569 65926 Frankfurt am Main Germany
| | - Peter Talbiersky
- Euticals GmbH Industriepark Höchst D569 65926 Frankfurt am Main Germany
| | - Beatriz G. De La Torre
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP) School of Laboratory Medicine and Medical Sciences College of Health Sciences University of KwaZulu-Natal Durban 4000 South Africa
| | - Fernando Albericio
- Peptide Science Laboratory School of Chemistry and Physics University of KwaZulu-Natal Durban 4000 South Africa
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC) 08034 Barcelona Spain
- CIBER-BBN Networking Centre on Bioengineering Biomaterials and Nanomedicine and Department of Organic Chemistry University of Barcelona 08028 Barcelona Spain
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20
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Yang Y, Hansen L, Baldi A, Badalassi F. Elucidation of the Mechanism of Endo-Xaa C-terminal Peptide Impurity Formation in SPPS through DoE Investigation, Their Control, and Suppression. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00478] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi Yang
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Kay Fiskers Plads 11, DK-2300 Copenhagen S, Denmark
| | - Lena Hansen
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Kay Fiskers Plads 11, DK-2300 Copenhagen S, Denmark
| | - Alberto Baldi
- PROsys LLC, 23925 74th Avenue W, Edmonds 98026, Washington, United States
| | - Fabrizio Badalassi
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Kay Fiskers Plads 11, DK-2300 Copenhagen S, Denmark
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21
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Winkler DFH. Automated Solid-Phase Peptide Synthesis. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2021; 2103:59-94. [PMID: 31879919 DOI: 10.1007/978-1-0716-0227-0_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The development of solid-phase peptide synthesis by Bruce Merrifield paved the way for a synthesis carried out by machines. Automated peptide synthesis is a fast and convenient way of synthesizing many peptides simultaneously. This chapter tries to give a general guidance for the development of synthesis protocols for the peptide synthesizer. It also provides some suggestions for the modification of the synthesized peptides. Additionally, many examples of possible challenges during and after the synthesis are given in order to support the reader in finding the best synthesis strategy. Numerous references are given to many of the described matters.
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22
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Mass Spectrometry-Based Shotgun Lipidomics Using Charge-Switch Derivatization for Analysis of Complex Long-Chain Fatty Acids. Methods Mol Biol 2021; 2306:93-103. [PMID: 33954942 DOI: 10.1007/978-1-0716-1410-5_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Charge-switch derivatization to convert long-chain fatty acids (LCFAs) to their N-(4-aminomethylphenyl) pyridinium (AMPP) derivatives (FA-AMPP derivative) drastically increases their sensitivity (>102) detected by electrospray ionization (ESI) or matrix assisted laser desorption ionization (MALDI). Lipidomic analyses of the FA-AMPP derivatives by ESI combined with CID tandem mass spectrometry (MS2), or by MALDI-TOF/TOF affords unambiguous structural characterization of LCFAs, including many unusual microbial LCFAs that contain various functional groups such as methyl, hydroxyl, cyclopropyl, and double bond(s). The ease of preparation of the FA-AMPP derivatives, the tremendous gain in sensitivity after derivatization, and more importantly, the readily recognizable product ion spectra that contain rich structurally informative fragment ions for locating functional groups make this method one of the most powerful techniques for LCFA identification and quantification.
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23
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Kriegelsteinová P, Lemrová B, Ručilová V, Soural M. Copper‐Free Solid‐Phase Synthesis of Triazolo[1,5‐
a
][1,4]diazepin‐6‐ones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Patricia Kriegelsteinová
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
| | - Barbora Lemrová
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
| | - Veronika Ručilová
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
| | - Miroslav Soural
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
- Institute of Molecular and Translational Medicine Faculty of Medicine and Dentistry Palacký University Hněvotínská 5 779 00 Olomouc Czech Republic
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24
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Developing the Optimal Synthetic Schem for the Potential Nootropic Drug GZK-111, N-Phenylacetylglycyl-L-Proline Ethyl Ester. Pharm Chem J 2020. [DOI: 10.1007/s11094-020-02251-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Stepanova EE, Dmitriev MV, Maslivets AN. Synthesis of 1,4-benzothiazinones from acylpyruvic acids or furan-2,3-diones and o-aminothiophenol. Beilstein J Org Chem 2020; 16:2322-2331. [PMID: 33029250 PMCID: PMC7522460 DOI: 10.3762/bjoc.16.193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/08/2020] [Indexed: 11/23/2022] Open
Abstract
Two synthetic approaches to enaminones fused to 1,4-benzothiazin-2-one moiety, which can be interesting in studies on biological activity, chemosensors, and fluorescence, were developed via the reaction of furan-2,3-diones or acylpyruvic acids in the presence of carbodiimides with o-aminothiophenols. The target enaminones were formed together with pharmaceutically interesting 2-hydroxy-2H-1,4-benzothiazin-3(4H)-ones. A selective synthetic approach to 2-hydroxy-2H-1,4-benzothiazin-3(4H)-ones was developed via the solvent-switchable reaction of furan-2,3-diones with o-aminothiophenol. Preliminary biological assays (antimicrobial, acute toxicity) of the new compounds were carried out.
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Affiliation(s)
- Ekaterina E Stepanova
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm 614990, Russian Federation
| | - Maksim V Dmitriev
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm 614990, Russian Federation
| | - Andrey N Maslivets
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm 614990, Russian Federation
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26
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Al Shaer D, Albericio F, de la Torre BG. Solid-phase synthesis of peptides containing 1-Hydroxypyridine-2-one (1,2-HOPO). Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Mäder P, Bartholomäus R, Nicolussi S, Baumann A, Weis M, Chicca A, Rau M, Simão AC, Gertsch J, Altmann KH. Synthesis and Biological Evaluation of Endocannabinoid Uptake Inhibitors Derived from WOBE437. ChemMedChem 2020; 16:145-154. [PMID: 32369259 DOI: 10.1002/cmdc.202000153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/02/2020] [Indexed: 01/18/2023]
Abstract
WOBE437 ((2E,4E)-N-(3,4-dimethoxyphenethyl)dodeca-2,4-dienamide, 1) is a natural product-derived, highly potent inhibitor of endocannabinoid reuptake. In this study, we synthesized almost 80 analogues of 1 with different types of modifications in the dodecadienoyl domain as well as the dimethoxyphenylethyl head group, and we investigated their effects on anandamide uptake into U937 cells. Intriguingly, none of these analogues was a more potent inhibitor of anandamide uptake than WOBE437 (1). At the same time, a number of WOBE437 variants exhibited potencies in the sub-100 nM range, with high selectivity over inhibition of the endocannabinoid-degrading enzyme fatty acid amide hydrolase; two compounds were virtually equipotent with 1. Interestingly, profound activity differences were observed between analogues in which either of the two methoxy substituents in the head group had been replaced by the same bulkier alkoxy group. Some of the compounds described here could be interesting departure points for the development of potent endocannabinoid uptake inhibitors with more drug-like properties.
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Affiliation(s)
- Patrick Mäder
- Department of Chemistry and Applied Biosciences, ETH Zürich HCI H405, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Ruben Bartholomäus
- Department of Chemistry and Applied Biosciences, ETH Zürich HCI H405, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Simon Nicolussi
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland, Bühlstrasse 28 3012, Bern, Switzerland
| | - Alice Baumann
- Department of Chemistry and Applied Biosciences, ETH Zürich HCI H405, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Melanie Weis
- Department of Chemistry and Applied Biosciences, ETH Zürich HCI H405, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Andrea Chicca
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland, Bühlstrasse 28 3012, Bern, Switzerland
| | - Mark Rau
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland, Bühlstrasse 28 3012, Bern, Switzerland
| | - Ana Catarina Simão
- Department of Chemistry and Applied Biosciences, ETH Zürich HCI H405, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Jürg Gertsch
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland, Bühlstrasse 28 3012, Bern, Switzerland
| | - Karl-Heinz Altmann
- Department of Chemistry and Applied Biosciences, ETH Zürich HCI H405, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
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28
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Kaźmierczak M, Koroniak H. Efficient synthesis of dipeptide analogues of α-fluorinated β-aminophosphonates. Beilstein J Org Chem 2020; 16:756-762. [PMID: 32362949 PMCID: PMC7176923 DOI: 10.3762/bjoc.16.69] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/02/2020] [Indexed: 11/23/2022] Open
Abstract
Herein, we present an efficient synthesis of dipeptide analogues of α-fluorinated β-aminophosphonates. Each step of the synthesis was optimized to provide excellent yields. Moreover, the absolute configuration of the obtained compounds was determined by X-ray analysis, which proved the stereochemistry that was proposed based on NMR studies.
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Affiliation(s)
- Marcin Kaźmierczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Henryk Koroniak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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29
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Katsuta R, Masada N, Kimura K, Yajima A, Ishigami K, Nukada T. Synthesis and stereochemistry of (−)-FE399. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Samaszko-Fiertek J, Szulc M, Dmochowska B, Jaśkiewicz M, Kamysz W, Ślusarz R, Madaj J. Influence of Carbohydrate Residues on Antibacterial Activity of Vancomycin. LETT ORG CHEM 2020. [DOI: 10.2174/1570178616666190329225748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper presents synthesis of vancomycin derivatives modified with selected 1- and
2-aminoalditols to carboxylic function and 2,5-anhydro-D-mannose and D-talose to amino function of
vancosamine via reductive alkylation. MIC and MBC of these derivatives were determined for reference
strains of bacteria: Staphylococcus aureus ATCC 25923, ATCC 6538, ATCC 6538/P, S. epidemidis
ATCC 14490, E. faecium PCM 1859, E. faecalis PCM 2673, S. pyogenes PCM 465, and
S. pneumonia ATCC 49619 and compared with the activity of vancomycin and its aglycone. Our findings
confirm that sugar fragments can play an important role in the mechanism of interaction of vancomycin
with bacterial cell wall peptidoglycan.
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Affiliation(s)
| | - Monika Szulc
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Barbara Dmochowska
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Maciej Jaśkiewicz
- Faculty of Pharmacy, Medical University of Gdansk, Al. Gen. Hallera 107, 80-416 Gdansk, Poland
| | - Wojciech Kamysz
- Faculty of Pharmacy, Medical University of Gdansk, Al. Gen. Hallera 107, 80-416 Gdansk, Poland
| | - Rafał Ślusarz
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Janusz Madaj
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
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31
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Pochkaeva EI, Podolsky NE, Zakusilo DN, Petrov AV, Charykov NA, Vlasov TD, Penkova AV, Vasina LV, Murin IV, Sharoyko VV, Semenov KN. Fullerene derivatives with amino acids, peptides and proteins: From synthesis to biomedical application. PROG SOLID STATE CH 2020. [DOI: 10.1016/j.progsolidstchem.2019.100255] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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32
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Affiliation(s)
- Somnath S. Chandankar
- Department of Organic Synthesis & Process Chemistry, Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sadagopan Raghavan
- Department of Organic Synthesis & Process Chemistry, Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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34
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Treitler DS, Marriott AS, Chadwick J, Quirk E. Mutagenic Impurities in 1-Hydroxybenzotriazole (HOBt). Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00376] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel S. Treitler
- Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Andrew S. Marriott
- Bristol-Myers Squibb, Reeds Lane, Moreton, Wirral CH46 1QW, United Kingdom
| | - James Chadwick
- Bristol-Myers Squibb, Reeds Lane, Moreton, Wirral CH46 1QW, United Kingdom
| | - Emma Quirk
- Bristol-Myers Squibb, Reeds Lane, Moreton, Wirral CH46 1QW, United Kingdom
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35
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Yan Q, Carroll PJ, Gau MR, Winkler JD, Joullié MM. A Transannular Rearrangement Reaction of a Pyrroloindoline Diketopiperazine. Org Lett 2019; 21:6619-6623. [PMID: 31414824 DOI: 10.1021/acs.orglett.9b02084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Oxaline, glandicoline, and meleagrin contain a unique triazaspirocyclic structure. Attracted by their biological activities, we attempted a novel strategy, mimicking a proposed biosynthetic pathway for glandicoline B in Penicillium chrysogenum and Penicillium oxalicum and using a transannular rearrangement to the desired triazaspirocycle 15.
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Affiliation(s)
- Qiao Yan
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J Carroll
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Michael R Gau
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jeffrey D Winkler
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Madeleine M Joullié
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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36
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Chandrashekar C, Okamoto R, Izumi M, Kajihara Y. Chemical Modification of the N Termini of Unprotected Peptides for Semisynthesis of Modified Proteins by Utilizing a Hydrophilic Protecting Group. Chemistry 2019; 25:10197-10203. [DOI: 10.1002/chem.201901778] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/15/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Chaitra Chandrashekar
- Department of Chemistry and Project Research Center for, Fundamental SciencesGraduate School of ScienceOsaka University1-1 Toyonaka Osaka 5600043 Japan
| | - Ryo Okamoto
- Department of Chemistry and Project Research Center for, Fundamental SciencesGraduate School of ScienceOsaka University1-1 Toyonaka Osaka 5600043 Japan
| | - Masayuki Izumi
- Department of Chemistry and Project Research Center for, Fundamental SciencesGraduate School of ScienceOsaka University1-1 Toyonaka Osaka 5600043 Japan
| | - Yasuhiro Kajihara
- Department of Chemistry and Project Research Center for, Fundamental SciencesGraduate School of ScienceOsaka University1-1 Toyonaka Osaka 5600043 Japan
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37
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Novel stable analogues of the neurotensin C-terminal hexapeptide containing unnatural amino acids. Amino Acids 2019; 51:1009-1022. [DOI: 10.1007/s00726-019-02741-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 05/02/2019] [Indexed: 10/26/2022]
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38
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Gordon CP. The renascence of continuous-flow peptide synthesis - an abridged account of solid and solution-based approaches. Org Biomol Chem 2019; 16:180-196. [PMID: 29255827 DOI: 10.1039/c7ob02759a] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Within a decade of Merrifield's seminal description of solid-phase peptide synthesis, the synergies between solid-phase approaches and flow synthesis were noted by a number of groups. However, despite the various advantages flow brings to peptide synthesis, throughout the 1990s and 2000s, interest in the technique was overshadowed by microwave assisted approaches. However, the current expansion of flow technologies has reinvigorated interest in both solid-phase and solution-phase continuous-flow approaches for assembling peptides. This perspective traces the introduction and evolution of continuous-flow solid-phase synthesis from a practical aspect with a particular focus on solid supports, acylation protocols, and racemisation suppression. Practical aspects of solution-phase continuous-flow peptide synthesis are also considered with an evaluation of microreactor systems, coupling protocols, and fragment-based approaches for assembly of extended peptide units.
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Affiliation(s)
- Christopher P Gordon
- School of Science and Health, Western Sydney University, Locked Bag, 1797, Penrith South, DC, Australia.
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39
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Umamaheswari A, Puratchikody A, Hari N. Synthesis and Investigation of Therapeutic Potential of Isoform-Specific HDAC8 Inhibitors for the Treatment of Cutaneous T Cell Lymphoma. Anticancer Agents Med Chem 2019; 19:916-934. [PMID: 30836926 DOI: 10.2174/1871520619666190301150254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/08/2018] [Accepted: 02/07/2019] [Indexed: 01/28/2023]
Abstract
BACKGROUND The available treatment option for any type of cancer including CTCL is chemotherapy and radiation therapy which indiscriminately persuade on the normal cells. One way out for selective destruction of CTCL cells without damaging normal cells is the use of histone deacetylase inhibitors (HDACi). Despite promising results in the treatment of CTCL, these HDACi have shown a broadband inhibition profile, moderately selective for one HDAC class but not for a particular isotype. The prevalence of drug-induced side effects leaves open a narrow window of speculation that the decreased therapeutic efficacy and observed side effects may be most likely due to non specific HDAC isoform inhibition. The aim of this paper is to synthesis and evaluates HDAC8 isoform specific inhibitors. METHODS Based on the preliminary report on the design and in silico studies of 52 hydroxamic acid derivatives bearing multi-substituent heteroaromatic rings with chiral amine linker, five compounds were shortlisted and synthesized by microwave assisted approach and high yielding synthetic protocol. A series of in vitro assays in addition to HDAC8 inhibitory activity was used to evaluate the synthesised compounds. RESULTS Inhibitors 1e, 2e, 3e, 4e and 5e exerted the anti-proliferative activities against CTCL cell lines at 20- 100 µM concentrations. Both the pyrimidine- and pyridine-based probes exhibited μM inhibitory activity against HDAC8. The pyrimidine-based probe 1e displayed remarkable HDAC8 selectivity superior to that of the standard drug, SAHA with an IC50 at 0.1µM. CONCLUSION Our study demonstrated that simple modifications at different portions of pharmacophore in the hydroxamic acid analogues are effective for improving both HDAC8 inhibitory activity and isoform selectivity. Potent and highly isoform-selective HDAC8 inhibitors were identified. These findings would be expedient for further development of HDAC8-selective inhibitors.
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Affiliation(s)
- Appavoo Umamaheswari
- D-3 Research Group, Department of Pharmaceutical Technology, University College of Engineering (BIT Campus), Anna University Tiruchirappalli, Tamilnadu, India
| | - Ayarivan Puratchikody
- D-3 Research Group, Department of Pharmaceutical Technology, University College of Engineering (BIT Campus), Anna University Tiruchirappalli, Tamilnadu, India
| | - Natarajan Hari
- Nuclear Magnetic Resonance Laboratory, School of Chemical & Biotechnology, SASTRA University, Thirumalaisamudram, Thanjavur, Tamilnadu, India
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40
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Goldschmidt Gőz V, Nagy A, Farkas V, Keszei E, Perczel A. Unwanted hydrolysis or α/β-peptide bond formation: how long should the rate-limiting coupling step take? RSC Adv 2019; 9:30720-30728. [PMID: 35529379 PMCID: PMC9072530 DOI: 10.1039/c9ra06124j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/29/2019] [Indexed: 12/30/2022] Open
Abstract
Nowadays, in Solid Phase Peptide Synthesis (SPPS), being either manual, automated, continuous flow or microwave-assisted, the reaction with various coupling reagents takes place via in situ active ester formation. In this study, the formation and stability of these key active esters were investigated with time-resolved 1H NMR by using the common PyBOP/DIEA and HOBt/DIC coupling reagents for both α- and β-amino acids. Parallel to the amide bond formation, the hydrolysis of the α/β-active esters, a side reaction that is a considerable efficacy limiting factor, was studied. Based on the chemical nature/constitution of the active esters, three amino acid categories were determined: (i) the rapidly hydrolyzing ones (t < 6 h) with smaller (Ala) or even longer side chains (Arg) holding a large protecting group; (ii) branched amino acids (Ile, Thr) with slowly hydrolyzing (6 < t < 24 h) propensities, and (iii) non-hydrolyzing ones, such as the hard-to-couple β-amino acids or β-sugar amino acid derivatives, stable for longer times (t > 24 h) in solution. The current insight into the kinetics of this key hydrolysis side reaction serves as a guide to optimize the coupling conditions of α- and β-amino acids, thereby saving time and minimizing the amounts of reagents and amino acids to be used – all key factors of more environmentally friendly chemistry. Parallel to the amide bond formation, the hydrolysis of the active esters of α/β-amino acids, as an unwanted side reaction limiting coupling efficacy, is studied.![]()
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Affiliation(s)
| | - Adrienn Nagy
- Laboratory of Structural Chemistry and Biology
- Institute of Chemistry
- Eötvös Loránd University
- 1117 Budapest
- Hungary
| | - Viktor Farkas
- MTA-ELTE Protein Modeling Research Group
- 1117 Budapest
- Hungary
| | - Ernő Keszei
- Chemical Kinetics Laboratory
- Institute of Chemistry
- Eötvös Loránd University
- 1117 Budapest
- Hungary
| | - András Perczel
- MTA-ELTE Protein Modeling Research Group
- 1117 Budapest
- Hungary
- Laboratory of Structural Chemistry and Biology
- Institute of Chemistry
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41
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Megahed MI, Fathalla W. Synthesis and Antimicrobial Activity of Methyl 2‐(2‐(2‐Arylquinazolin‐4‐yl)sulfanyl)acetylamino Alkanoates. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3348] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- M. I. Megahed
- Physics and Mathematical Engineering Department, Faculty of EngineeringPort Said University Port Said Egypt
| | - W. Fathalla
- Physics and Mathematical Engineering Department, Faculty of EngineeringPort Said University Port Said Egypt
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42
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Preparation and Use of a General Solid-Phase Intermediate to Biomimetic Scaffolds and Peptide Condensations. Molecules 2018; 23:molecules23071762. [PMID: 30021979 PMCID: PMC6100553 DOI: 10.3390/molecules23071762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/11/2018] [Accepted: 07/14/2018] [Indexed: 11/18/2022] Open
Abstract
The Distributed Drug Discovery (D3) program develops simple, powerful, and reproducible procedures to enable the distributed synthesis of large numbers of potential drugs for neglected diseases. The synthetic protocols are solid-phase based and inspired by published work. One promising article reported that many biomimetic molecules based on diverse scaffolds with three or more sites of variable substitution can be synthesized in one or two steps from a common key aldehyde intermediate. This intermediate was prepared by the ozonolysis of a precursor functionalized at two variable sites, restricting their presence in the subsequently formed scaffolds to ozone compatible functional groups. To broaden the scope of the groups available at one of these variable sites, we developed a synthetic route to an alternative, orthogonally protected key intermediate that allows the incorporation of ozone sensitive groups after the ozonolysis step. The utility of this orthogonally protected intermediate is demonstrated in the synthesis of several representative biomimetic scaffolds containing ozonolytically labile functional groups. It is compatible with traditional Fmoc peptide chemistry, permitting it to incorporate peptide fragments for use in fragment condensations with peptides containing cysteine at the N-terminus. Overall yields for its synthesis and utilization (as many as 13 steps) indicate good conversions at each step.
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43
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Albericio F, El-Faham A. Choosing the Right Coupling Reagent for Peptides: A Twenty-Five-Year Journey. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00159] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Fernando Albericio
- School of Chemistry and Physics, University of KwaZulu-Natal, University Road,
Westville, Durban 4001, South Africa
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Department of Organic Chemistry, University of Barcelona, Martí i Franqués 1-11, Barcelona 08028, Spain
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, Barcelona 08028, Spain
| | - Ayman El-Faham
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426,
Ibrahimia, Alexandria 21321, Egypt
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44
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Reddy KR, Sridhar G, Sharma GVM. Synthesis of β3-amino acid and peptides from D-ribose. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1455213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Karnekanti Rajender Reddy
- Organic and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
- Govt. Polytechnic, Warangal, Telangana, India
| | - Gattu Sridhar
- Organic and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Gangavaram V. M. Sharma
- Organic and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
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45
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Sun W, Gu H, Lin X. Synthesis and Application of Hexamethyl-1,1′-spirobiindane-Based Phosphine-Oxazoline Ligands in Ni-Catalyzed Asymmetric Arylation of Cyclic Aldimines. J Org Chem 2018; 83:4034-4043. [DOI: 10.1021/acs.joc.8b00422] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Weiye Sun
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Haorui Gu
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
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46
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Sagar BK, Yathirajan HS, Rathore RS, Glidewell C. Synthesis and structures of six closely related N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]arylamides, together with an isolated reaction intermediate: order versus disorder, molecular conformations and hydrogen bonding in zero, one and two dimensions. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:203-211. [PMID: 29400336 DOI: 10.1107/s2053229618000657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 11/10/2022]
Abstract
Six closely related N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]arylamides have been synthesized and structurally characterized, together with a representative reaction intermediate. In each of N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]benzamide, C20H16ClNO2S, (I), N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]-4-phenylbenzamide, C26H20ClNO2S, (II), and 2-bromo-N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]benzamide, C20H15BrClNO2S, (III), the molecules are disordered over two sets of atomic sites, with occupancies of 0.894 (8) and 0.106 (8) in (I), 0.832 (5) and 0.168 (5) in (II), and 0.7006 (12) and 0.2994 (12) in (III). In each of N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]-2-iodobenzamide, C20H15ClINO2S, (IV), and N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]-2-methoxybenzamide, C21H18ClNO3S, (V), the molecules are fully ordered, but in N-[3-(2-chlorobenzoyl)-5-ethylthiophen-2-yl]-2,6-difluorobenzamide, C20H14ClF2NO2S, (VI), which crystallizes with Z' = 2 in the space group C2/c, one of the two independent molecules is fully ordered, while the other is disordered over two sets of atomic sites having occupancies of 0.916 (3) and 0.084 (3). All of the molecules in compounds (I)-(VI) exhibit an intramolecular N-H...O hydrogen bond. The molecules of (I) and (VI) are linked by C-H...O hydrogen bonds to form finite zero-dimensional dimers, which are cyclic in (I) and acyclic in (VI), those of (III) are linked by C-H...π(arene) hydrogen bonds to form simple chains, and those of (IV) and (V) are linked into different types of chains of rings, built in each case from a combination of C-H...O and C-H...π(arene) hydrogen bonds. Two C-H...O hydrogen bonds link the molecules of (II) into sheets containing three types of ring. In benzotriazol-1-yl 3,4-dimethoxybenzoate, C15H13N3O4, (VII), the benzoate component is planar and makes a dihedral angle of 84.51 (6)° with the benzotriazole unit. Comparisons are made with related compounds.
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Affiliation(s)
- Belakavadi K Sagar
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru 570 006, India
| | - Hemmige S Yathirajan
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru 570 006, India
| | - Ravindranath S Rathore
- Centre for Biological Sciences (Bioinformatics), School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Patna 800 014, India
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47
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Song J, Cui J, Liang H, Liu Q, Dong Y, Liu H. Palladium-Catalyzed Direct Oxidative Esterification of Indoles at the C3 Position: A Novel Prospect for C(sp2
)−H Acyloxylation. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700663] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jian Song
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Jie Cui
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Hanbing Liang
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Qing Liu
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Yunhui Dong
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Hui Liu
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
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48
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Staegemann MH, Gräfe S, Gitter B, Achazi K, Quaas E, Haag R, Wiehe A. Hyperbranched Polyglycerol Loaded with (Zinc-)Porphyrins: Photosensitizer Release Under Reductive and Acidic Conditions for Improved Photodynamic Therapy. Biomacromolecules 2017; 19:222-238. [DOI: 10.1021/acs.biomac.7b01485] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Michael H. Staegemann
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
| | - Susanna Gräfe
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
| | - Burkhard Gitter
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
| | - Katharina Achazi
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
| | - Elisa Quaas
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
| | - Rainer Haag
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
| | - Arno Wiehe
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
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49
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Jaradat DMM. Thirteen decades of peptide synthesis: key developments in solid phase peptide synthesis and amide bond formation utilized in peptide ligation. Amino Acids 2017; 50:39-68. [PMID: 29185032 DOI: 10.1007/s00726-017-2516-0] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 11/21/2017] [Indexed: 12/27/2022]
Abstract
A historical overview of peptide chemistry from T. Curtius to E. Fischer to M. Bergmann and L. Zervas is first presented. Next, the fundamentals of peptide synthesis with a focus on solid phase peptide synthesis by R. B. Merrifield are described. Immobilization strategies to attach the first amino acid to the resin, coupling strategies in stepwise peptide chain elongation, and approaches to synthesize difficult peptide sequences are also shown. A brief comparison between tert-butyloxycarbonyl (Boc)/benzyl (Bzl) strategy and 9-fluorenylmethoxycarbonyl (Fmoc)/tert-butyl (t -Bu) strategy utilized in solid phase peptide synthesis is given with an emphasis on the latter. Finally, the review focuses on the discovery and development of peptide ligation and the latest advances in this field including native amide bond formation strategies, these include the native chemical ligation, α-ketoacid-hydroxylamine ligation, and serine/threonine ligation which are the most commonly used chemoselective ligation methods that provide amide bond at the ligation site. This review provides an overview of the literature concerning the most important advances in the chemical synthesis of proteins and peptides covering the period from 1882 to 2017.
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Affiliation(s)
- Da'san M M Jaradat
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, P.O. Box 19117, Al-Salt, Jordan.
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Biondi B, Peggion C, De Zotti M, Pignaffo C, Dalzini A, Bortolus M, Oancea S, Hilma G, Bortolotti A, Stella L, Pedersen JZ, Syryamina VN, Tsvetkov YD, Dzuba SA, Toniolo C, Formaggio F. Conformational properties, membrane interaction, and antibacterial activity of the peptaibiotic chalciporin A: Multitechnique spectroscopic and biophysical investigations on the natural compound and labeled analogs. Biopolymers 2017; 110. [PMID: 29127716 DOI: 10.1002/bip.23083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/06/2017] [Accepted: 10/15/2017] [Indexed: 02/28/2024]
Abstract
In this work, an extensive set of spectroscopic and biophysical techniques (including FT-IR absorption, CD, 2D-NMR, fluorescence, and CW/PELDOR EPR) was used to study the conformational preferences, membrane interaction, and bioactivity properties of the naturally occurring synthetic 14-mer peptaibiotic chalciporin A, characterized by a relatively low (≈20%), uncommon proportion of the strongly helicogenic Aib residue. In addition to the unlabeled peptide, we gained in-depth information from the study of two labeled analogs, characterized by one or two residues of the helicogenic, nitroxyl radical-containing TOAC. All three compounds were prepared using the SPPS methodology, which was carefully modified in the course of the syntheses of TOAC-labeled analogs in view of the poorly reactive α-amino function of this very bulky residue and the specific requirements of its free-radical side chain. Despite its potentially high flexibility, our results point to a predominant, partly amphiphilic, α-helical conformation for this peptaibiotic. Therefore, not surprisingly, we found an effective membrane affinity and a remarkable penetration propensity. However, chalciporin A exhibits a selectivity in its antibacterial activity not in agreement with that typical of the other members of this peptide class.
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Affiliation(s)
- Barbara Biondi
- Institute of Biomolecular, Chemistry, Padova Unit, CNR, Padova, 35131, Italy
| | - Cristina Peggion
- Department of Chemical Sciences, University of Padova, Padova, 35131, Italy
| | - Marta De Zotti
- Department of Chemical Sciences, University of Padova, Padova, 35131, Italy
| | - Chiara Pignaffo
- Department of Chemical Sciences, University of Padova, Padova, 35131, Italy
| | - Annalisa Dalzini
- Department of Chemical Sciences, University of Padova, Padova, 35131, Italy
| | - Marco Bortolus
- Department of Chemical Sciences, University of Padova, Padova, 35131, Italy
| | - Simona Oancea
- Department of Agricultural Sciences and Food Engineering, "Lucian Blaga" University of Sibiu, Sibiu, 550012, Romania
| | - Geta Hilma
- Department of Medicine, "Lucian Blaga" University of Sibiu, Sibiu, 550012, Romania
| | - Annalisa Bortolotti
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, 00133, Italy
| | - Lorenzo Stella
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, 00133, Italy
| | - Jens Z Pedersen
- Department of Biology, University of Rome Tor Vergata, Rome, 00133, Italy
| | - Victoria N Syryamina
- Institute of Chemical Kinetics and Combustion, Novosibirsk, 630090, Russian Federation
| | - Yuri D Tsvetkov
- Institute of Chemical Kinetics and Combustion, Novosibirsk, 630090, Russian Federation
| | - Sergei A Dzuba
- Institute of Chemical Kinetics and Combustion, Novosibirsk, 630090, Russian Federation
| | - Claudio Toniolo
- Institute of Biomolecular, Chemistry, Padova Unit, CNR, Padova, 35131, Italy
- Department of Chemical Sciences, University of Padova, Padova, 35131, Italy
| | - Fernando Formaggio
- Institute of Biomolecular, Chemistry, Padova Unit, CNR, Padova, 35131, Italy
- Department of Chemical Sciences, University of Padova, Padova, 35131, Italy
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