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Hyun YE, Kim HR, Jeong LS. Stereoselective Synthesis of ( S)- and ( N)-Cyclopropyl-Fused Carbocyclic Nucleosides Using Stereoselective Cyclopropanation. J Org Chem 2021; 86:9828-9837. [PMID: 34184528 DOI: 10.1021/acs.joc.1c00705] [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
To determine which sugar conformation is favorable in binding to peroxisome proliferator-activated receptors, the conformationally locked south (S) and north (N) analogues were asymmetrically synthesized using a bicyclo[3.1.0]hexane template. The (S)-conformer was synthesized by employing "reagent-controlled" Charette asymmetric cyclopropanation in a 100% stereoselective manner, whereas the (N)-conformer was stereoselectively synthesized by using "substrate-controlled" hydroxyl-directed Simmons-Smith cyclopropanation as a key step.
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Affiliation(s)
- Young Eum Hyun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Hong-Rae Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Lak Shin Jeong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
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2
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Mahender M, Yakambaram B, Pandey J, Chandrashekar ERR, Reddy LA, Jayashree A, Bandichhor R. Stereoselective Synthesis for Potential Isomers of Ticagrelor Key Starting Material. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Madaraboina Mahender
- Research and DevelopmentDr. Reddy's Laboratories Ltd. Hyderabad 500090 India
- Centre for Chemical Sciences & Technology, ISTJawaharlal Nehru Technological University Hyderabad 500085 India
| | - B. Yakambaram
- Research and DevelopmentDr. Reddy's Laboratories Ltd. Hyderabad 500090 India
- Centre for Chemical Sciences & Technology, ISTJawaharlal Nehru Technological University Hyderabad 500085 India
| | - Jaya Pandey
- Lucknow CampusAmity University Uttar Pradesh Lucknow 226028 India
| | | | - L. Amarnath Reddy
- Research and DevelopmentDr. Reddy's Laboratories Ltd. Hyderabad 500090 India
| | - A. Jayashree
- Centre for Chemical Sciences & Technology, ISTJawaharlal Nehru Technological University Hyderabad 500085 India
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3
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Gao Y, Cao Z, Zhang Q, Guo R, Ding F, You Q, Bi J, Zhang Y. Total Synthesis of the Proposed Structure of Penasulfate A: l-Arabinose as a Source of Chirality. JOURNAL OF NATURAL PRODUCTS 2019; 82:1908-1916. [PMID: 31241928 DOI: 10.1021/acs.jnatprod.9b00245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The total synthesis of putative penasulfate A was effectively achieved by a convergent strategy with a longest linear sequence of 14 steps and overall yield of 8.6%. The highlights of our strategy involved an E-selective olefin cross-metathesis, Suzuki cross-coupling, and a copper(I)-catalyzed coupling reaction.
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Affiliation(s)
- Yangguang Gao
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Zhou Cao
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Qiang Zhang
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Rui Guo
- Institute of Environment and Health , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Fei Ding
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Qingliang You
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Jingjing Bi
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , People's Republic of China
| | - Yongmin Zhang
- Institut Parisien de Chimie Moléculaire, UMR 8232 CNRS , Sorbonne Université , Paris 75005 , France
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Tosh DK, Jacobson KA. Methanocarba ring as a ribose modification in ligands of G protein-coupled purine and pyrimidine receptors: synthetic approaches. MEDCHEMCOMM 2013; 2013:619-630. [PMID: 26161251 PMCID: PMC4493925 DOI: 10.1039/c2md20348k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Adenosine receptors (ARs) and P2Y receptors for purine and pyrimidine nucleotides have widespread distribution and regulate countless physiological processes. Various synthetic ligands are in clinical trials for treatment of inflammatory diseases, pain, cancer, thrombosis, ischemia, and other conditions. The methanocarba (bicyclo[3.1.0]hexane) ring system as a rigid substitution for ribose, which maintains either a North (N) or South (S) conformation, tends to preserve or enhance the potency and/or selectivity for certain receptor subtypes. This review summarizes recent developments in the synthetic approaches to these biologically important nucleoside and nucleotide analogues.
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Affiliation(s)
- Dilip K. Tosh
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Kenneth A. Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
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5
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Quadrelli P, Mella M, Carosso S, Bovio B. N,O-Nucleosides from Ene Reactions of Nitrosocarbonyl Intermediates with the 3-Methyl-2-buten-1-ol. J Org Chem 2012; 78:516-26. [PMID: 23245669 DOI: 10.1021/jo302346a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Paolo Quadrelli
- Dipartimento
di Chimica, Università degli Studi di Pavia, Viale Taramelli 12, 27100, Pavia,
Italy
| | - Mariella Mella
- Dipartimento
di Chimica, Università degli Studi di Pavia, Viale Taramelli 12, 27100, Pavia,
Italy
| | - Serena Carosso
- Dipartimento
di Chimica, Università degli Studi di Pavia, Viale Taramelli 12, 27100, Pavia,
Italy
| | - Bruna Bovio
- Dipartimento
di Chimica, Università degli Studi di Pavia, Viale Taramelli 12, 27100, Pavia,
Italy
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6
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Jasiński M, Lentz D, Moreno-Clavijo E, Reissig HU. Application of L-Erythrose-Derived Nitrones in the Synthesis of Polyhydroxylated Compounds via 3,6-Dihydro-2H-1,2-oxazine Derivatives. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200158] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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7
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Park AY, Kim WH, Kang JA, Lee HJ, Lee CK, Moon HR. Synthesis of enantiomerically pure D- and L-bicyclo[3.1.0]hexenyl carbanucleosides and their antiviral evaluation. Bioorg Med Chem 2011; 19:3945-55. [PMID: 21658957 PMCID: PMC7126181 DOI: 10.1016/j.bmc.2011.05.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 05/16/2011] [Accepted: 05/17/2011] [Indexed: 11/08/2022]
Abstract
Based upon the fact that l-nucleosides have been generally known to be less cytotoxic than d-counterparts, l-bicyclo[3.1.0]hexenyl carbanucleoside derivatives with a fixed north conformation were designed and synthesized by employing a novel synthetic strategy starting from (R)-epichlorohydrin in order to search for new anti-HIV agents with high potency and less cytotoxicity. A tandem alkylation, γ-lactonization, a chemoselective reduction of ester in the presence of γ-lactone functional group, a RCM reaction, and a Mitsunobu coupling reaction were used as key reactions. d-Counterpart nucleosides were also prepared according to the same synthetic method. Among the synthesized carbanucleosides, d-thymine nucleoside, d-2 and l-thymine nucleoside, l-2 exhibited excellent anti-HIV-1 and -2 activities, in MT-4 cells, which were higher than those of ddI, an anti-AIDS drug. Whereas d-2 exhibited high cytotoxicity in MT-4 cell lines, l-2 did not show any discernible cytotoxicity in all cell lines tested, reflecting that l-2 may be a good candidate for an anti-AIDS drug. l-2 also showed weak anti-HSV-2 activity without cytotoxicity. However, none of the synthesized nucleosides exhibited antiviral activities against RNA viruses including coxsakie, influenza, corona and polio viruses, maybe due to their 2′,3′-dideoxy structure. Potent antiviral effects of d-2 and l-2 indicate that nucleosides belonging to a class of D4Ns can be an excellent candidate for anti-DNA virus agents. This research strongly supports l-nucleosides of a class of D4Ns to be a very promising candidate for antiviral agents due to its low cytotoxicity and a good antiviral activity.
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Affiliation(s)
- Ah-Young Park
- Laboratory of Medicinal Chemistry, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, Republic of Korea
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8
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Bepary S, Yoon IK, Lee GH. Facile and Large Scale Synthesis of Diverse 4-O-Protected 2,3-O-Isopropylidene-D-erythrose. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.12.3788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Yang Z, Kim KR, Park AY, Lee HR, Kang JA, Kim WH, Chun P, Gong P, Lee B, Jeong LS, Moon HR. Highly Concise Synthesis of 3'-"Up"-ethynyl-5'-methylbicyclo- [3.1.0]hexyl Purine and Pyrimidine Nucleoside Derivatives Using Rhodium(II) Carbenoid Cycloaddition and Highly Diastereoselective Grignard Reaction. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.201090016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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Michel BY, Strazewski P. Total syntheses of a conformationally locked North-type methanocarba puromycin analogue and a dinucleotide derivative. Chemistry 2009; 15:6244-57. [PMID: 19441002 DOI: 10.1002/chem.200802629] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An original synthetic approach for the first synthesis of an enantiopure methanocarba puromycin (3'-alpha-aminoacylamino-3'-deoxyadenosine) analogue and its cytidine dinucleotide derivative is described. Each compound is conformationally locked in a North-type pucker and exhibits both a pseudoaxial hydroxy group and a pseudoequatorial aminoacyl group. The syntheses were accomplished from D-ribose in 18 and 19 steps, respectively, with key steps being a ring-closing metathesis, a Luche reduction, a Simmons-Smith cyclopropanation, a Mitsunobu coupling, a Mattocks bromoacetylation, a regioselective and a stereoselective nucleophilic substitution, a chemoselective phosphoramidite coupling and a Staudinger-Vilarrasa coupling. Both molecules are being tested for peptidyl transfer efficiency in ribosomes for comparison with the peptidyl transfer kinetics of natural puromycin and other natural and synthetic ribosomal A site substrates.
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Affiliation(s)
- Benoît Y Michel
- UMR 5246, CNRS, Laboratoire de Synthèse de Biomolécules, Université Claude Bernard Lyon 1, Villeurbanne, Université de Lyon, 69622 Lyon, France
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11
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Melman A, Zhong M, Marquez VE, Jacobson KA. Synthesis of enantiomerically pure (S)-methanocarbaribo uracil nucleoside derivatives for use as antiviral agents and P2Y receptor ligands. J Org Chem 2008; 73:8085-8. [PMID: 18811198 DOI: 10.1021/jo801224j] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed an approach toward enantiomerically pure (S)-methanocarba ribonucleosides based on several functional group transformations on a sensitive bicyclo[3.1.0]hexane system. D-ribose was transformed into methanocarba alcohol 3 followed by conversion of the OH group to a nitrile with inversion of configuration at C4. The nitrile group was subsequently reduced in two stages to the 5'-hydroxymethyl group. An ester group appended to a tertiary carbon (C1) was transformed to an amino group as a nucleobase precursor.
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Affiliation(s)
- Artem Melman
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, USA
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12
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Melman A, Wang B, Joshi BV, Gao ZG, de Castro S, Heller CL, Kim SK, Jeong LS, Jacobson KA. Selective A(3) adenosine receptor antagonists derived from nucleosides containing a bicyclo[3.1.0]hexane ring system. Bioorg Med Chem 2008; 16:8546-56. [PMID: 18752961 PMCID: PMC2593936 DOI: 10.1016/j.bmc.2008.08.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 08/01/2008] [Accepted: 08/04/2008] [Indexed: 10/21/2022]
Abstract
We have prepared 50-modified derivatives of adenosine and a corresponding (N)-methanocarba nucleoside series containing a bicyclo[3.1.0]hexane ring system in place of the ribose moiety. The compounds were examined in binding assays at three subtypes of adenosine receptors (ARs) and in functional assays at the A3 AR. The H-bonding ability of a group of 9-riboside derivatives containing a 50-uronamide moiety was reduced by modification of the NH; however these derivatives did not display the desired activity as selective A3 AR antagonists, as occurs with 50-N,N-dimethyluronamides. However, truncated (N)-methanocarba analogues lacking a 40-hydroxymethyl group were highly potent and selective antagonists of the human A3 AR. The compounds were synthesized from D-ribose using a reductive free radical decarboxylation of a 50-carboxy intermediate. A less efficient synthetic approach began with L-ribose, which was similar to the published synthesis of (N)-methanocarba A3AR agonists. Compounds 33b-39b (N6-3-halobenzyl and related arylalkyl derivatives) were potent A3AR antagonists with binding Ki values of 0.7-1.4 nM. In a functional assay of [35S]GTPcS binding, 33b (3-iodobenzyl) completely inhibited stimulation by NECA with a KB of 8.9 nM. Thus, a highly potent and selective series of A3AR antagonists has been described.
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Affiliation(s)
- Artem Melman
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Ben Wang
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Bhalchandra V. Joshi
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Zhan-Guo Gao
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Sonia de Castro
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Cara L. Heller
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Soo-Kyung Kim
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
- Beckman Institute, Materials and Process Simulation Center, California Institute of Technology, Pasadena, CA 91125
| | - Lak Shin Jeong
- Laboratory of Medicinal Chemistry, College of Pharmacy, Ewha Womans University, Seoul 120−750, Korea
| | - Kenneth A. Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
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13
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Quadrelli P, Mella M, Assanelli G, Piccanello A. From 1,3-cyclohexadiene through nitrosocarbonyl chemistry, the synthesis of pyrimidine isoxazoline-carbocyclic nucleosides. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.05.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Joshi BV, Melman A, Mackman RL, Jacobson KA. Synthesis of ethyl (1S,2R,3S,4S,5S)-2,3-O-(isopropylidene)-4-hydroxy-bicyclo[3.1.0]hexane-carboxylate from L-ribose: a versatile chiral synthon for preparation of adenosine and P2 receptor ligands. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2008; 27:279-91. [PMID: 18260011 DOI: 10.1080/15257770701845253] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Substitution of the ribose moiety of various nucleosides and nucleotides with the (N)-methanocarba ring system increases the potency and selectivity as ligands at certain subtypes of adenosine and P2 receptors. We have prepared a key intermediate in the synthesis of these derivatives, ethyl (1S,2R,3S,4S,5S)-2,3-O-(isopropylidene)-4-hydroxybicyclo[3.1.0]hexane-carboxylate (15), starting from L-ribose (8) as a readily available, enantiopure building block. L-ribose was converted to the corresponding 5'-iodo derivative (9), which was cleaved reductively with Zn. Improvements were made in subsequent steps corresponding to a published route to biologically important (N)-methanocarba 5'-uronamido nucleosides, and new steps were added to prepare related 5'-nucleotides.
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Affiliation(s)
- Bhalchandra V Joshi
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892-0810, USA
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15
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Agrawal D, Yadav VK. Silylmethyl-substituted cyclopropyl and other strained ring systems: cycloaddition with dipolarophiles. Chem Commun (Camb) 2008:6471-88. [DOI: 10.1039/b812285g] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Aubin Y, Audran G, Monti H, De Clercq E. Chemoenzymatic synthesis and antiviral evaluation of conformationally constrained and 3′-methyl-branched carbanucleosides using both enantiomers of the same building block. Bioorg Med Chem 2008; 16:374-81. [PMID: 17905585 DOI: 10.1016/j.bmc.2007.09.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Revised: 09/10/2007] [Accepted: 09/14/2007] [Indexed: 10/22/2022]
Abstract
Starting from both enantiomers of a readily available building block, a straightforward enantioselective approach to constrained 3'-methyl-2',3'-alpha-oxirane-fused and 3'-methyl-3',4'-alpha-oxirane-fused carbanucleosides bearing different purine base analogues is described. The title compounds were evaluated as potential antiviral agents against important viruses. None of the new compounds had significant antiviral activity at a concentration of 100 microg/mL, which was the highest concentration tested.
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Affiliation(s)
- Yoann Aubin
- Laboratoire de Réactivité Organique Sélective, U.M.R. 6180 Chirotechnologies: catalyse et biocatalyse, Université Paul Cézanne, Aix-Marseille III, 13397 Marseille Cedex 20, France
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17
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Quadrelli P, Mella M, Carosso S, Bovio B, Caramella P. A Straightforward Synthesis of Isoxazoline-Based Carbocyclic Nucleosides from 1,3-Cyclohexadiene through Nitrosocarbonyl Chemistry. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700569] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Kiss L, Forró E, Sillanpää R, Fülöp F. Diastereo- and Enantioselective Synthesis of Orthogonally Protected 2,4-Diaminocyclopentanecarboxylates: A Flip from β-Amino- to β,γ-Diaminocarboxylates. J Org Chem 2007; 72:8786-90. [DOI: 10.1021/jo701332v] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Loránd Kiss
- Institute of Pharmaceutical Chemistry and Research Group of Stereochemistry of the Hungarian Academy of Sciences, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary, and Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland
| | - Enikó Forró
- Institute of Pharmaceutical Chemistry and Research Group of Stereochemistry of the Hungarian Academy of Sciences, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary, and Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland
| | - Reijo Sillanpää
- Institute of Pharmaceutical Chemistry and Research Group of Stereochemistry of the Hungarian Academy of Sciences, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary, and Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry and Research Group of Stereochemistry of the Hungarian Academy of Sciences, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary, and Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland
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19
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Aubin Y, Audran G, Vanthuyne N, Monti H. Chemoenzymatic synthesis of novel adenosine carbanucleoside analogues containing a locked 3′-methyl-2′,3′-β-oxirane-fused system. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Jacobson KA, Gao ZG, Tchilibon S, Duong HT, Joshi BV, Sonin D, Liang BT. Semi-rational design of (north)-methanocarba nucleosides as dual acting A(1) and A(3) adenosine receptor agonists: novel prototypes for cardioprotection. J Med Chem 2006; 48:8103-7. [PMID: 16366590 PMCID: PMC2597460 DOI: 10.1021/jm050726b] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ring-constrained adenosine analogues have been designed to act as dual agonists at tissue-protective A(1) and A(3) adenosine receptors (ARs). 9-Ribosides transformed into the ring-constrained (N)-methanocarba-2-chloro-5'-uronamides consistently lost affinity at A(1)/A(2A)ARs and gained at A(3)AR. Among 9-riboside derivatives, only N(6)-cyclopentyl and 7-norbornyl moieties were extrapolated for mixed A(1)/A(3) selectivity and rat/human A(3)AR equipotency. Consequently, 2 was balanced in affinity and potency at A(1)/A(3)ARs as envisioned and dramatically protected in an intact heart model of global ischemia and reperfusion.
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Affiliation(s)
- Kenneth A Jacobson
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.
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21
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Comin MJ, Parrish DA, Deschamps JR, Marquez VE. Synthesis of Bicyclo[3.1.0]hexanes Functionalized at the Tip of the Cyclopropane Ring. Application to the Synthesis of Carbocyclic Nucleosides. Org Lett 2006; 8:705-8. [PMID: 16468747 DOI: 10.1021/ol052886n] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] A general synthetic strategy for the preparation of functionalized bicyclo[3.1.0]hexanes is described. The new approach employs a cross metathesis step designed to functionalize the appropriate terminal olefin of the bicyclo[3.1.0]hexane precursor and a carbene-mediated intramolecular cyclopropanation reaction on the corresponding diazo intermediate. This combined methodology allowed the diastereoselective introduction of chemically diverse substituents at the tip of the cyclopropane group, except in cases where the substituents consisted of electron-withdrawing groups where a competing [3 + 2] cycloaddition predominated.
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Affiliation(s)
- Maria J Comin
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, USA
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22
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Park AY, Moon HR, Kim KR, Chun MW, Jeong LS. Synthesis of novel l-N-MCd4T as a potent anti-HIV agent. Org Biomol Chem 2006; 4:4065-7. [PMID: 17312958 DOI: 10.1039/b612537a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
L-N-MCd4T (1) has been synthesized as a potent anti-HIV agent starting from (R)-epichlorohydrin using tandem alkylation, chemoselective reduction of ester in the presence of lactone functional group, RCM reaction and Mitsunobu reaction as key steps and was found to be a very potent anti-HIV-1 (EC50 = 6.76 microg mL(-1)) agent without cytotoxicity up to 100 microg mL(-1), indicating that the anti-HIV-1 activity found is similar to that of ddI (EC50 = 4.95 microg mL(-1)), which is used clinically for the treatment of AIDS patients.
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Affiliation(s)
- Ah-Young Park
- Laboratory of Medicinal Chemistry, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, Korea
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Tchilibon S, Joshi BV, Kim SK, Duong HT, Gao ZG, Jacobson KA. (N)-methanocarba 2,N6-disubstituted adenine nucleosides as highly potent and selective A3 adenosine receptor agonists. J Med Chem 2005; 48:1745-58. [PMID: 15771421 PMCID: PMC3463111 DOI: 10.1021/jm049580r] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of ring-constrained (N)-methanocarba-5'-uronamide 2,N(6)-disubstituted adenine nucleosides have been synthesized via Mitsunobu condensation of the nucleobase precursor with a pseudosugar ring containing a 5'-ester functionality. Following appropriate functionalization of the adenine ring, the ester group was converted to the 5'-N-methylamide. The compounds, mainly 2-chloro-substituted derivatives, were tested in both binding and functional assays at human adenosine receptors (ARs), and many were found to be highly potent and selective A(3)AR agonists. Selected compounds were compared in binding to the rat A(3)AR to assess their viability for testing in rat disease models. The N(6)-(3-chlorobenzyl) and N(6)-(3-bromobenzyl) analogues displayed K(i) values at the human A(3)AR of 0.29 and 0.38 nM, respectively. Other subnanomolar affinities were observed for the following N(6) derivatives: 2,5-dichlorobenzyl, 5-iodo-2-methoxybenzyl, trans-2-phenyl-1-cyclopropyl, and 2,2-diphenylethyl. Selectivity for the human A(3)AR in comparison to the A(1)AR was the following (fold): the N(6)-(2,2-diphenylethyl) analogue 34 (1900), the N(6)-(2,5-dimethoxybenzyl) analogue 26 (1200), the N(6)-(2,5-dichlorobenzyl) and N(6)-(2-phenyl-1-cyclopropyl) analogues 20 and 33 (1000), and the N(6)-(3-substituted benzyl) analogues 17, 18, 28, and 29 (700-900). Typically, even greater selectivity ratios were obtained in comparison with the A(2A) and A(2B)ARs. The (N)-methanocarba-5'-uronamide analogues were full agonists at the A(3)AR, as indicated by the inhibition of forskolin-stimluated adenylate cyclase at a concentration of 10 microM. The N(6)-(2,2-diphenylethyl) derivative was an A(3)AR agonist in the (N)-methanocarba-5'-uronamide series, although it was an antagonist in the ribose series. Thus, many of the previously known groups that enhance A(3)AR affinity in the 9-riboside series, including those that reduce intrinsic efficacy, may be adapted to the (N)-methanocarba nucleoside series of full agonists.
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Affiliation(s)
- Susanna Tchilibon
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Bhalchandra V. Joshi
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Soo-Kyung Kim
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Heng T. Duong
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Zhan-Guo Gao
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kenneth A. Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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