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Wawrzyniak D, Framski G, Januszczyk P, Ostrowski T, Baraniak D, Jahnz‐Wechmann Z, Fogt J, Manikowski A, Baranowski D, Rolle K, Boryski J. 7‐(β‐
D
‐Ribofuranosyl)guanine and its Analogues Modified in the Sugar Portion: Synthesis and Antiglioma Properties. ChemistrySelect 2020. [DOI: 10.1002/slct.202003393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dariusz Wawrzyniak
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Grzegorz Framski
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Piotr Januszczyk
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Tomasz Ostrowski
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Dagmara Baraniak
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Zofia Jahnz‐Wechmann
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Joanna Fogt
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Andrzej Manikowski
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Daniel Baranowski
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Katarzyna Rolle
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
| | - Jerzy Boryski
- Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14, postCode/>61-704 <Poznan Poland
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Mohamed MANM, Abu-Alola LMB, Aljaied NMG. Nucleosides 9: Design and synthesis of new 8-nitro and 8-amino xanthine nucleosides of expected biological activity. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2018; 36:745-756. [PMID: 29239699 DOI: 10.1080/15257770.2017.1395036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The coupling reaction of 1,3-dimethylxanthine (theophylline), 3-benzylxanthine and 3-benzyl-1-methylxanthine with 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose afforded the corresponding protected nucleosides, respectively. Nitration of each of the theophylline and 3-benzy-1-methyllxanthine protected nucleosides yielded the corresponding 8-nitronucleosides derivatives, which were reduced to give the corresponding 8-aminonucleoside derivatives. Debenzoylation of protected nucleosides formed by using methanolic sodium methoxide afforded the corresponding free N-nucleosides, respectively. The structures of products have been elucidated and reported and also some of the products were screened for their antimicrobial activity. Some of tested products showed moderate activity.
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Affiliation(s)
- Mosselhi A N M Mohamed
- a Department of Chemistry, Faculty of Science , Taif University , Saudi Arabia , Taif , KSA.,b Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Laila M B Abu-Alola
- a Department of Chemistry, Faculty of Science , Taif University , Saudi Arabia , Taif , KSA
| | - Nada M G Aljaied
- a Department of Chemistry, Faculty of Science , Taif University , Saudi Arabia , Taif , KSA
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Theophylline-7β-d-Ribofuranoside (Theonosine), a New Theophylline Metabolite Generated in Human and Animal Lung Tissue. Pharmaceutics 2017; 9:pharmaceutics9030028. [PMID: 28805720 PMCID: PMC5620569 DOI: 10.3390/pharmaceutics9030028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/26/2017] [Accepted: 08/06/2017] [Indexed: 11/17/2022] Open
Abstract
While assessing the ability of mammalian lung tissue to metabolize theophylline, a new metabolite was isolated and characterized. The metabolite was produced by the microsomal fraction of lungs from several species, including rat, rabbit, dog, pig, sheep and human tissue. Metabolite production was blocked by boiling the microsomal tissue. This new metabolite, theophylline-7β-d-ribofuranoside (theonosine), was confirmed by several spectral methods and by comparison to an authentic synthetic compound. Tissue studies from rats, rabbits, dogs, and humans for cofactor involvement demonstrated an absolute requirement for NADP and enhanced metabolite production in the presence of magnesium ion. It remains to be demonstrated whether theonosine may contribute to the known pharmacological effects of theophylline.
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Harvey AL, Young LC, Kornisiuk E, Snitcofsky M, Colettis N, Blanco C, Jerusalinsky D, Jamieson AG, Hartley RC, Stone TW. A novel dihydro-pyrazolo(3,4d)(1,2,4)triazolo(1,5a)pyrimidin-4-one (AJ23) is an antagonist at adenosine A1 receptors and enhances consolidation of step-down avoidance. Behav Brain Res 2012; 234:184-91. [DOI: 10.1016/j.bbr.2012.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 06/18/2012] [Accepted: 06/20/2012] [Indexed: 01/24/2023]
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Costanzi S, Lambertucci C, Vittori S, Volpini R, Cristalli G. 2- and 8-alkynyladenosines: conformational studies and docking to human adenosine A3 receptor can explain their different biological behavior. J Mol Graph Model 2003; 21:253-62. [PMID: 12479925 DOI: 10.1016/s1093-3263(02)00161-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Adenosine (Ado) derivatives substituted at the C2 position with an alkynyl chain are endowed with high affinity for A(1), A(2A) and A(3) human adenosine receptors, while being less active at the low affinity A(2B) subtype. On the other hand, the introduction of an alkynyl chain at the C8 position of adenosine is detrimental for the affinity and potency at A(1), A(2A), and A(2B) receptors, while is more tolerated by the A(3) receptor. The evaluation of the stimulation of [35S]GTPgammaS binding revealed that 2-alkynyladenosines behave as adenosine receptors agonists while, on the contrary, 8-alkynyladenosines behave as antagonists. With this work we demonstrated, by means of an NMR-based and a computational conformational analysis, that 8-alkynyladenosines, differently from 2-alkynyladenosines, cannot adopt the sugar-base anti conformation required for adenosine receptor activation.Furthermore, using the recently reported X-ray crystal structure of bovine rhodopsin as template, we built a 3D model of the seven transmembrane domains of the human adenosine A(3) receptor with the homology modeling. After identification of the binding site we carried out docking experiments, demonstrating that the two class of molecules have different binding modes that explain their different degree of affinity and the shift of their activity from agonism to antagonism.
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Affiliation(s)
- Stefano Costanzi
- Dipartimento di Scienze Chimiche, Università di Camerino, 62032 Camerino, Italy
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van Muijlwijk-Koezen JE, Timmerman H, Ijzerman AP. The adenosine A3 receptor and its ligands. PROGRESS IN MEDICINAL CHEMISTRY 2002; 38:61-113. [PMID: 11774799 DOI: 10.1016/s0079-6468(08)70092-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- J E van Muijlwijk-Koezen
- Leiden/Amsterdam Center for Drug Research, Division of Medicinal Chemistry, Department of Pharmacochemistry, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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Matova M, Nacheva R, Boicheva S. QSAR analysis of 2-alkyloxy and 2-aralkyloxy adenosine A1- and A2-agonists. Eur J Med Chem 1997. [DOI: 10.1016/s0223-5234(97)84013-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Partial agonists for adenosine receptors. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/s0165-7208(96)80015-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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Van der Wenden EM, Hartog-Witte HR, Roelen HC, von Frijtag Drabbe Künzel JK, Pirovano IM, Mathôt RA, Danhof M, Van Aerschot A, Lidaks MJ, IJzerman AP. 8-substituted adenosine and theophylline-7-riboside analogues as potential partial agonists for the adenosine A1 receptor. Eur J Pharmacol 1995; 290:189-99. [PMID: 7589213 DOI: 10.1016/0922-4106(95)00064-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A series of 8-substituted adenosine and theophylline-7-riboside analogues (28 and 9 compounds, respectively) was tested on adenosine A1 and A2A receptors as an extensive exploration of the adenosine C8-region. Alkylamino substituents at the 8-position cause an affinity decrease for adenosine analogues, but an affinity increase for theophylline-7-riboside derivatives. The affinity decrease is probably due to a direct steric hindrance between the C8-substituent and the binding site as well as to electronic effects, not to a steric influence on the ribose moiety to adopt the anti conformation. The 8-substituents increase the affinity of theophylline-7-riboside analogues probably by binding to a lipophilic binding site. The intrinsic activity was tested in vitro for some 8-substituted adenosine analogues, by determining the GTP shift in receptor binding studies and the inhibition of adenylate cyclase in a culture of rat thyroid FRTL-5 cells, and in vivo in the rat cardiovascular system for 8-butylaminoadenosine. Thus, it was shown that 8-ethyl-, 8-butyl-, and 8-pentylamino substituted analogues of adenosine may be partial agonists in vitro, and that 8-butylaminoadenosine is a partial agonist for the rat cardiovascular A1 receptor in vivo.
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Affiliation(s)
- E M Van der Wenden
- Division of Medicinal Chemistry, Leiden-Amsterdam Center for Drug Research, Leiden University, The Netherlands
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van der Wenden EM, Price SL, Apaya RP, IJzerman AP, Soudijn W. Relative binding orientations of adenosine A1 receptor ligands--a test case for Distributed Multipole Analysis in medicinal chemistry. J Comput Aided Mol Des 1995; 9:44-54. [PMID: 7751869 DOI: 10.1007/bf00117277] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The electrostatic properties of adenosine-based agonists and xanthine-based antagonists for the adenosine A1 receptor were used to assess various proposals for their relative orientation in the unknown binding site. The electrostatic properties were calculated from distributed multipole representations of SCF wavefunctions. A range of methods of assessing the electrostatic similarity of the ligands were used in the comparison. One of the methods, comparing the sign of the potential around the two molecules, gave inconclusive results. The other approaches, however, provided a mutually complementary and consistent picture of the electrostatic similarity and dissimilarity of the molecules in the three proposed relative orientations. This was significantly different from the results obtained previously with MOPAC AM1 point charges. In the standard model overlay, where the aromatic nitrogen atoms of both agonists and antagonists are in the same position relative to the binding site, the electrostatic potentials are so dissimilar that binding to the same receptor site is highly unlikely. Overlaying the N6-region of adenosine with that near C8 of theophylline (the N6-C8 model) produces the greatest similarity in electrostatic properties for these ligands. However, N6-cyclopentyladenosine (CPA) and 1,3-dipropyl-8-cyclopentyl-xanthine (DPCPX) show greater electrostatic similarity when the aromatic rings are superimposed according to the flipped model, in which the xanthine ring is rotated around its horizontal axis. This difference is mainly attributed to the change in conformation of N6-substituted adenosines and could result in a different orientation for theophylline and DPCPX within the receptor binding site. However, it is more likely that DPCPX also binds according to the N6-C8 model, as this model gives the best steric overlay and would be favoured by the lipophilic forces, provided that the binding site residues could accommodate the different electrostatic properties in the N6/N7-region. Finally, we have shown that Distributed Multipole Analysis (DMA) offers a new, feasible tool for the medicinal chemist, because it provides the use of reliable electrostatic models to determine plausible relative binding orientations.
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Affiliation(s)
- E M van der Wenden
- Leiden-Amsterdam Center for Drug Research, Division of Medicinal Chemistry, Gorlaeus Laboratories, The Netherlands
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Abstract
The identification and characterization of adenosine receptors and the development of potent, receptor subtype-selective agonists and antagonists has been an active area of research for the past 20 years. Major recent advances in the field have been the cloning of several adenosine receptor subtypes of different species, including the discovery of a new subtype, designated A3, the discovery and development of new agonists and antagonists, particularly those with selectivity for the A2a adenosine receptor, the characterization of signal transduction pathways, and the development of agents which act indirectly on the adenosine receptor system. The present article focusses on aspects of pharmaceutical/medicinal chemistry related to adenosine receptors.
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Affiliation(s)
- C E Müller
- Pharmazeutisches Institut, Pharmazeutische Chemie, Tübingen, Germany
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Ozola V, Ramzaeva N, Maurinsh Y, Lidaks M. Synthesis of 8-Substituted Theophyllineβ-D-Ribofuranosides. ACTA ACUST UNITED AC 1993. [DOI: 10.1080/07328319308018553] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ozola V, Ramzaeva N, Maurinsh Y, Lidaks M. Synthesis of 8-Substituted 7-(α-L-Arabinofuranosyl)theophyllines. ACTA ACUST UNITED AC 1993. [DOI: 10.1080/07328319308021217] [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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Dudley MW, Peet NP, Demeter DA, Weintraub HJR, Ijzerman AP, Nordvall G, van Galen PJM, Jacobson KA. Adenosine A 1 Receptor and Ligand Molecular Modeling. Drug Dev Res 1993; 28:237-243. [PMID: 38239889 PMCID: PMC10794910 DOI: 10.1002/ddr.430280309] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2024]
Abstract
This symposium provided a forum for presentations by the relevant groups on ligand design and ligand binding on the adenosine A1, receptor. Agreement appears to exist that the "N6-C8" model of ligand binding to the receptor is the preferred mode. A consensus has not yet been reached on the actual placement of the ligand in the receptor and the exact amino acids which interact in its binding. Two viable models exist at present. Both can be tested with selective site-directed mutagenic studies on the A1 receptor as well as with additional designed ligands.
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Affiliation(s)
- Mark W Dudley
- Marion Merrell Dow Research Institute, Cincinnati, Ohio
| | - Norton P Peet
- Marion Merrell Dow Research Institute, Cincinnati, Ohio
| | | | | | - Ad P Ijzerman
- Center for Bio-Pharmaceutical Sciences, Leiden, The Netherlands
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van Galen PJ, Stiles GL, Michaels G, Jacobson KA. Adenosine A1 and A2 receptors: structure--function relationships. Med Res Rev 1992; 12:423-71. [PMID: 1513184 PMCID: PMC3448285 DOI: 10.1002/med.2610120502] [Citation(s) in RCA: 103] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- P J van Galen
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
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