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Synthesis of 18F-labeled streptozotocin derivatives and an in-vivo kinetics study using positron emission tomography. Bioorg Med Chem Lett 2020; 30:127400. [PMID: 32738964 DOI: 10.1016/j.bmcl.2020.127400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 01/28/2023]
Abstract
Glucose transporter 2 (GLUT2) is involved in glucose uptake by hepatocytes, pancreatic beta cells, and absorptive cells in the intestine and proximal tubules in the kidney. Pancreatic GLUT2 also plays an important role in the mechanism of glucose-stimulated insulin secretion. In this study, novel Fluorine-18-labeled streptozotocin (STZ) derivatives were synthesized to serve as glycoside analogs for in-vivo GLUT2 imaging. Fluorine was introduced to hexyl groups at the 3'-positions of the compounds, and we aimed to synthesize compounds that were more stable than STZ. The nitroso derivatives exhibited relatively good stability during purification and purity analysis after radiosynthesis. We then evaluated the compounds in PET imaging and ex-vivo biodistribution studies. We observed high levels of radioactivity in the liver and kidney, which indicated accumulation in these organs within 5 min of administration. In contrast, the denitroso derivatives accumulated only in the kidney and bladder shortly after administration. Compounds with nitroso groups are thus expected to accumulate in GLUT2-expressing organs, and the presence of a nitroso group is essential for in-vivo GLUT2 imaging.
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Lavado N, García de la Concepción J, Gallego M, Babiano R, Cintas P. From prebiotic chemistry to supramolecular oligomers: urea-glyoxal reactions. Org Biomol Chem 2019; 17:5826-5838. [PMID: 31147669 DOI: 10.1039/c9ob01120j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A fundamental question in origin-of-life studies and astrochemistry concerns the actual processes that initiate the formation of reactive monomers and their oligomerization. Answers lie partly in the accurate description of reaction mechanisms compatible with environments plausible on early Earth as well as cosmological scenarios in planetary factories. Here we show in detail that reactions of urea-as archetypal prebiotic substance-and reactive carbonyls-exemplified by glyoxal-lead to a vast repertoire of oligomers, in which different five- and six-membered non-aromatic heterocycles self-assemble and insert into chains or dendritic-like structures with masses up to 1000 Da. Such regular patterns have been interpreted by experimental and computational methods. A salient conclusion is that such processes most likely occur through SN-type mechanisms on hydrated or protonated species. Remarkably, such supramolecular oligomeric mixtures can be easily isolated from organic solvents, thus opening the door to the generation of novel urea-containing polymers with potential applications in materials chemistry and beyond.
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Affiliation(s)
- Nieves Lavado
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, E-06006 Badajoz, Spain.
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Lavado N, Escamilla JC, Ávalos M, Babiano R, Cintas P, Jiménez JL, Palacios JC. Prebiotic-Like Condensations of Cyanamide and Glyoxal: Revisiting Intractable Biotars. Chemistry 2016; 22:13632-42. [PMID: 27455123 DOI: 10.1002/chem.201601999] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Indexed: 11/10/2022]
Abstract
We report a detailed investigation into the nature of products that are generated by the reactions of cyanamide and glyoxal, two small molecules of astrochemical and prebiotic significance, under different experimental conditions. The experimental data suggest that the formation of oligomeric structures is related in part to the formation of insoluble tholins in the presence of oxygen-containing molecules. Although oligomerization proceeds well in water, product isolation turned out to be impractical. Instead, solid precipitates were obtained easily in acetone. Crude mixtures have been thoroughly scrutinized by spectroscopic methods, in particular NMR and mass spectroscopy (ESI mode), which are all consistent with the generation of a few functional groups that are embedded into regular chains of five- and six-membered rings, thereby pointing to a supramolecular organization. Three different models of cross-condensation and chain growth are suggested. These synthetic explorations provide further insights into the formation of complex organic matter in interstellar scenarios and extraterrestrial bodies that might have played a pivotal role in chemical evolution.
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Affiliation(s)
- Nieves Lavado
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, 06006, Badajoz, Spain.
| | - Juan Carlos Escamilla
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, 06006, Badajoz, Spain
| | - Martín Ávalos
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, 06006, Badajoz, Spain
| | - Reyes Babiano
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, 06006, Badajoz, Spain.
| | - Pedro Cintas
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, 06006, Badajoz, Spain
| | - José Luis Jiménez
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, 06006, Badajoz, Spain
| | - Juan Carlos Palacios
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, IACYS-Unidad de Química Verde y Desarrollo Sostenible, 06006, Badajoz, Spain
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Silvero G, Ávalos M, Babiano R, Cintas P, Jiménez JL, Palacios JC. A bioinspired look at the glucosinolate metabolic pathway. Structural insights into the reaction of benzyl isothiocyanate and d-glucosamine. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.07.073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Maza S, López Ó, Martos S, Maya I, Fernández-Bolaños JG. Synthesis of the First Selenium-Containing Acyclic Nucleosides and Anomeric Spironucleosides from Carbohydrate Precursors. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900793] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Ávalos M, Babiano R, Cintas P, Hursthouse MB, Jiménez JL, Light ME, Palacios JC, Pérez EMS. Synthesis of Sugar Isocyanates and Their Application to the Formation of Ureido-Linked Disaccharides. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500601] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ávalos M, Babiano R, Cintas P, Hursthouse MB, Jiménez JL, Light ME, Palacios JC, Silvero G. Non-biaryl atropisomers derived from carbohydrates. Part 3: Rotational isomerism of sterically hindered heteroaryl imidazolidine-2-ones and 2-thiones. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.06.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ávalos M, Babiano R, Cintas P, Hursthouse MB, Jiménez JL, Light ME, Palacios JC, Silvero G. Non-biaryl atropisomers derived from carbohydrates. Part 4: Absolute stereochemistry of carbohydrate-based imidazolidine-2-ones and 2-thiones with axial and central chirality. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.06.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Saul R, Kern T, Kopf J, Pintér I, Köll P. Reaction of 1,3-Disubstituted Acetone Derivatives with Pseudohalides: A Simple Approach to Spiro[4.4]nonane-Type Bis-Oxazolidines and -Imidazolidines (Bicyclic Carbamates, Thiocarbamates, Ureas, and Thioureas). European J Org Chem 2000. [DOI: 10.1002/(sici)1099-0690(200001)2000:1<205::aid-ejoc205>3.0.co;2-j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Avalos M, Babiano R, Cintas P, Higes FJ, Jiménez J, Palacios JC, Silvero G, Valencia C. Non-biaryl atropisomers derived from carbohydrates. Part 2. Atropisomeric behavior of monocyclic and bicyclic imidazolidine-2-ones and 2-thiones. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00110-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Avalos M, Babiano R, Cintas P, Jiménez J, Palacios JC, Silvero G, Valencia C. Non-biaryl atropisomers derived from carbohydrates. Part 1. Stereoselective synthesis of 1-aryl-5-hydroxyimidazolidine-2-thiones and their transformation into imidazoline-2-thiones. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00109-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tournaire-Arellano C, Hage SY, Valès P, Caujolle R, Sanon A, Bories C, Loiseau PM. Synthesis and biological evaluation of ureido and thioureido derivatives of 2-amino-2-deoxy-D-glucose and related aminoalcohols as N-acetyl-beta-D-hexosaminidase inhibitors. Carbohydr Res 1998; 314:47-63. [PMID: 10230037 DOI: 10.1016/s0008-6215(98)00286-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Ureido and thioureido derivatives of 2-acetamido-2-deoxy-beta-D-glucose, 1-amino-1-deoxy-D-glucitol and 2-(2-aminoethoxy)ethanol were prepared as N-acetyl-beta-D-hexosaminidase (NAHase) inhibitors and were evaluated on Trichomonas vaginalis NAHase. Although none showed complete inhibition of the enzyme at 100 microM, 1-amino-1-deoxy-D-glucitol derivatives acted as competitive inhibitors of the NAHase of T. vaginalis.
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Shaban MA. The Chemistry of C-Nucleosides and Their Analogs II: C-Nucleosides of Condensed Heterocyclic Bases. ADVANCES IN HETEROCYCLIC CHEMISTRY 1997. [DOI: 10.1016/s0065-2725(08)60931-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Shaban MA, Nasr AZ. The Chemistry of C-Nucleosides and Their Analogs I: C-Nucleosides of Hetero Monocyclic Bases. ADVANCES IN HETEROCYCLIC CHEMISTRY 1997. [DOI: 10.1016/s0065-2725(08)60363-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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13C, 15N CP MAS and high resolution multinuclear NMR study of methyl 3,4,6-tri-O-acetyl-2-(3′-arylureido)-2-deoxy-β-d-glucopyranosides. Carbohydr Res 1996. [DOI: 10.1016/0008-6215(96)00156-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kerns RJ, Toida T, Linhardt RJ. Synthesis of the Bis-Tetrahydropyrano[2,3-b:2′,3′-e] Piperazine Ring System: A New Tricyclic Heterocycle from D-Glucosamine. J Carbohydr Chem 1996. [DOI: 10.1080/07328309608005676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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A1H-NMR Spectroscopic Investigation of the Conformation of the Acetamido Group in Some Derivatives ofN-Acetyl-D-allosamine and -D-glucosamine. Helv Chim Acta 1996. [DOI: 10.1002/hlca.19960790127] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wawer I, Piekarska-Bartoszewicz B, Temeriusz A. 13C CP MAS and high-resolution 1H, 13C, 15N NMR study of new ureido sugars, derivatives of 2-amino-2-deoxy-β-d-glucopyranose and l-amino acid. Carbohydr Res 1995. [DOI: 10.1016/0008-6215(95)00275-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Del Valle JL, Torroba T, Marcaccini S, Paoli P, Williams DJ. Diastereoselective synthesis of C-glycosylnorbornenones. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)00428-b] [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]
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22
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Wawer I, Piekarska-Bartoszewicz B, Temeriusz A. 13C CP MAS and high-resolution 1H, 15N NMR study of ureido sugars. Carbohydr Res 1995. [DOI: 10.1016/0008-6215(94)00295-q] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Condensation of 2-amino-2-deoxysugars with isothiocyanates. Synthesis of cis-1,2-fused glycopyrano heterocycles. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)81122-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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