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Shaikh AY, Björkling F, Zabicka D, Tomczak M, Urbas M, Domraceva I, Kreicberga A, Franzyk H. Structure-activity study of oncocin: On-resin guanidinylation and incorporation of homoarginine, 4-hydroxyproline or 4,4-difluoroproline residues. Bioorg Chem 2023; 141:106876. [PMID: 37797458 DOI: 10.1016/j.bioorg.2023.106876] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023]
Abstract
Antimicrobial peptides (AMPs) often display guanidinium functionalities, and hence robust synthetic procedures are needed to facilitate access to analogues with unnatural homologues of arginine (Arg = R). Initially, a resin-bound Arg/Pro-rich fluoren-9-yl-methyloxycarbonyl-protected fragment (Fmoc-RPRPPR) of the AMP oncocin (i.e., VDKPPYLPRPRPPRRIYNR-NH2) was employed in a comparative on-resin assessment of commercial guanidinylation reagents head-to-head with the recently studied bis-Boc-protected triazole-based reagent, 1H-triazole-1-[N,N'-bis(tert-butoxycarbonyl)]-carboxamidine, which was synthesized by a chromatography-free procedure. This reagent was found to enable quantitative conversion in solid-phase peptide synthesis (SPPS) of peptides displaying homoarginine (Har) residues and/or an N-terminal guanidinium group. SPPS was used to obtain analogues of the 18-mer oncocin with single as well as multiple Arg → Har modifications. In addition, the effect of replacement of proline (Pro) residues in oncocin was explored by incorporating single or multiple trans-4-hydroxy-l-proline (Hyp) or 4,4-difluoro-l-proline (Dfp) residues, which both affected hydrophobicity. The resulting peptide library was tested against both Gram-negative and Gram-positive bacteria. Analysis of the minimal inhibitory concentrations (MICs) showed that analogues, displaying modifications at positions 4, 5 and 12 (originally Pro residues), had retained or slightly improved antimicrobial activity. Next, an oncocin analogue with two stabilizing l-Arg → d-Arg replacements in the C-terminal part was further modified by triple-replacement of Pro by either Dfp or Hyp in positions 4, 5, and 12. The resulting analogue displaying three Pro → Dfp modifications proved to possess the best activity profile: MICs of 1-2 µg/mL against E. coli and Klebsiella pneumoniae, less than 1% hemolysis at 800 µg/mL, and an IC50 above 1280 µg/mL in HepG2 cells. Thus, incorporation of bis-fluorinated Pro residues appears to constitute a novel tool in structure-activity studies aimed at optimization of Pro-rich AMPs.
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Affiliation(s)
- Ashif Y Shaikh
- Center for Peptide-Based Antibiotics, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Denmark; Department of Chemistry, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Fredrik Björkling
- Center for Peptide-Based Antibiotics, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Denmark
| | - Dorota Zabicka
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, ul. Chełmska 30/34, 00-725 Warsaw, Poland
| | - Magdalena Tomczak
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, ul. Chełmska 30/34, 00-725 Warsaw, Poland
| | - Malgorzata Urbas
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, ul. Chełmska 30/34, 00-725 Warsaw, Poland
| | - Ilona Domraceva
- Latvian Institute of Organic Synthesis, Aizkraukles 21, 1006 Riga, Latvia
| | - Agrita Kreicberga
- Latvian Institute of Organic Synthesis, Aizkraukles 21, 1006 Riga, Latvia
| | - Henrik Franzyk
- Center for Peptide-Based Antibiotics, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Denmark.
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López-López LI, de Loera D, Rivera-Avalos E, Sáenz-Galindo A. Green Synthesis of Hydantoins and Derivatives. MINI-REV ORG CHEM 2020. [DOI: 10.2174/1570193x16666181206100225] [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
The hydantoin moiety is found in several bioactive compounds with important pharmacological properties such as antimicrobial, antifungal, anti-androgens, anticancer and the historical action anticonvulsant. Because of these reasons, the synthesis of these compounds and their derivatives is important to review considering the philosophy of the green chemistry. In this review, we present the actual importance in the green synthesis of hydantoins and their derivatives using green methods, such as microwave and ultrasound irradiation, ionic liquids, solid-phase and solvent-free synthesis. Finally, several green protocols reported have been discussed.
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Affiliation(s)
| | - Denisse de Loera
- School of Chemistry, Universidad Autonoma de San Luis Potosi, San Luis Potosi, Mexico
| | - Ernesto Rivera-Avalos
- School of Chemistry, Universidad Autonoma de San Luis Potosi, San Luis Potosi, Mexico
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Bogolubsky AV, Moroz YS, Savych O, Pipko S, Konovets A, Platonov MO, Vasylchenko OV, Hurmach VV, Grygorenko OO. An Old Story in the Parallel Synthesis World: An Approach to Hydantoin Libraries. ACS COMBINATORIAL SCIENCE 2018; 20:35-43. [PMID: 29227678 DOI: 10.1021/acscombsci.7b00163] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An approach to the parallel synthesis of hydantoin libraries by reaction of in situ generated 2,2,2-trifluoroethylcarbamates and α-amino esters was developed. To demonstrate utility of the method, a library of 1158 hydantoins designed according to the lead-likeness criteria (MW 200-350, cLogP 1-3) was prepared. The success rate of the method was analyzed as a function of physicochemical parameters of the products, and it was found that the method can be considered as a tool for lead-oriented synthesis. A hydantoin-bearing submicromolar primary hit acting as an Aurora kinase A inhibitor was discovered with a combination of rational design, parallel synthesis using the procedures developed, in silico and in vitro screenings.
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Affiliation(s)
| | - Yurii S. Moroz
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Olena Savych
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Sergey Pipko
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Angelika Konovets
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | | | | | - Vasyl V. Hurmach
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
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4
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Pérez-Faginas P, Teresa Aranda M, Torre-Martínez RDL, Quirce S, Fernández-Carvajal A, Ferrer-Montiel A, González-Muñiz R. New transient receptor potential TRPV1, TRPM8 and TRPA1 channel antagonists from a single linear β,γ-diamino ester scaffold. RSC Adv 2016. [DOI: 10.1039/c5ra25709c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Incorporation of minor changes in the structure of a single β,γ-diaminoester linear scaffold resulted in selective hits for TRPV1, TRPM8 and TRPA1 blockade, as well as some dual antagonists.
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Affiliation(s)
| | | | - Roberto de la Torre-Martínez
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- Avenida de la Universidad s/n
- 03202 Elche
- Spain
| | - Susana Quirce
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- Avenida de la Universidad s/n
- 03202 Elche
- Spain
| | - Asia Fernández-Carvajal
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- Avenida de la Universidad s/n
- 03202 Elche
- Spain
| | - Antonio Ferrer-Montiel
- Instituto de Biología Molecular y Celular
- Universidad Miguel Hernández
- Avenida de la Universidad s/n
- 03202 Elche
- Spain
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5
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de Queiroz RB, de Carvalho FL, Fonsêca DVD, Barbosa-Filho JM, Salgado PRR, Paulo LL, de Queiroz ABM, Pordeus LCDM, de Souza SA, Souza HDDS, Lira BF, de Athayde-Filho PF. Antinociceptive effect of hydantoin 3-phenyl-5-(4-ethylphenyl)-imidazolidine-2,4-dione in mice. Molecules 2015; 20:974-86. [PMID: 25580690 PMCID: PMC6272532 DOI: 10.3390/molecules20010974] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 01/05/2015] [Indexed: 11/23/2022] Open
Abstract
Imidazolidine derivatives, or hydantoins, are synthetic compounds with different therapeutic applications. Many imidazolidine derivatives have psychopharmacological properties, such as phenytoin, famous for its anticonvulsant efficacy, but also effective in the treatment of neuropathic pain. The hydantoin, 3-phenyl-5-(4-ethylphenyl)-imidazolidine-2,4-dione (IM-3), synthesized from the amino acid, glycine, was selected for psychopharmacological studies in mice on the basis of its chemical and structural similarity with phenytoin. The first step of this study was to define the LD50, which determined the doses of 50, 100 and 200 mg/kg for subsequent tests. The results obtained from the behavioral screening indicated that IM-3 produces decreased ambulation and analgesia in mice. Motor coordination and anxiety behavior were not affected by treatment with IM-3, as observed in the rotarod and elevated plus-maze tests, respectively. Regarding its antinociceptive properties, IM-3 showed efficacy in the acetic acid-induced writhing test by increasing the latency of the first writhe and reducing the number of writhes, as well as reducing the paw licking time in the second phase of the formalin test. The behavior of treated animals exposed to the hot plate test, however, did not differ from that of the control group. These data suggest that IM-3 has antinociceptive effects in mice, which is probably mediated by anti-inflammatory mechanisms.
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Affiliation(s)
| | | | - Diogo Vilar da Fonsêca
- Center for Health Sciences, Federal University of Paraiba, João Pessoa PB 58059-900, Brazil.
| | | | | | - Luciano Leite Paulo
- Center for Health Sciences, Federal University of Paraiba, João Pessoa PB 58059-900, Brazil.
| | | | | | | | | | - Bruno Freitas Lira
- Department of Chemistry, Federal University of Paraiba, João Pessoa PB 58059-900, Brazil.
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Bąchor R, Kluczyk A, Stefanowicz P, Szewczuk Z. New method of peptide cleavage based on Edman degradation. Mol Divers 2013; 17:605-11. [PMID: 23690169 PMCID: PMC3713267 DOI: 10.1007/s11030-013-9453-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 05/12/2013] [Indexed: 11/25/2022]
Abstract
A straightforward cleavage method for N- acylated peptides based on the phenylthiohydantoin (PTH) formation is presented. The procedure could be applied to acid-stable resins, such as TentaGel HL–NH\documentclass[12pt]{minimal}
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\begin{document}$$_{2}$$\end{document}2. We designed a cleavable linker that consists of a lysine residue with the \documentclass[12pt]{minimal}
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\begin{document}$$\upalpha $$\end{document}α-amino group blocked by Boc, whereas the \documentclass[12pt]{minimal}
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\begin{document}$$\upvarepsilon $$\end{document}ε-amino group is used for peptide synthesis. After the peptide assembly is completed, the protecting groups in peptide side chains are removed using trifluoroacetic acid, thus liberating also the \documentclass[12pt]{minimal}
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\begin{document}$$\upalpha $$\end{document}α-amino group of the lysine in the linker. Then the reaction with phenyl isothiocyanate followed by acidolysis causes an efficient peptide release from the resin as a stable PTH derivative. Furthermore, the application of a fixed charge tag in the form of 2-(4-aza-1-azoniabicyclo[2.2.2]octylammonium)acetyl group increases ionization efficiency and reduces the detection limit, allowing ESI-MS/MS sequencing of peptides in the subfemtomolar range. The proposed strategy is compatible with standard conditions during one-bead-one-compound peptide library synthesis. The applicability of the developed strategy in combinatorial chemistry was confirmed using a small training library of \documentclass[12pt]{minimal}
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\begin{document}$$\upalpha $$\end{document}α-chymotrypsin substrates.
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Affiliation(s)
- Remigiusz Bąchor
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 , Wrocław, Poland
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Zhang YJ, Wang YG. An efficient solid-phase synthesis of substituted benzofuran using selenium-bound resin. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yin jun Zhang
- College of Biological and Environmental Engineering; Zhejiang University of Technology; Hangzhou; Zhejiang; 310014; People's Republic of China
| | - Yu guang Wang
- College of Biological and Environmental Engineering; Zhejiang University of Technology; Hangzhou; Zhejiang; 310014; People's Republic of China
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8
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Olimpieri F, Bellucci MC, Marcelli T, Volonterio A. Regioselective multicomponent sequential synthesis of hydantoins. Org Biomol Chem 2012; 10:9538-55. [DOI: 10.1039/c2ob26498f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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