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Tănase CI, Drăghici C, Hanganu A, Pintilie L, Maganu M, Volobueva A, Sinegubova E, Zarubaev VV, Neyts J, Jochmans D, Slita AV. New HSV-1 Anti-Viral 1'-Homocarbocyclic Nucleoside Analogs with an Optically Active Substituted Bicyclo[2.2.1]Heptane Fragment as a Glycoside Moiety. Molecules 2019; 24:molecules24132446. [PMID: 31277334 PMCID: PMC6651170 DOI: 10.3390/molecules24132446] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 06/28/2019] [Accepted: 06/30/2019] [Indexed: 02/05/2023] Open
Abstract
New 1′-homocarbanucleoside analogs with an optically active substituted bicyclo[2.2.1]heptane skeleton as sugar moiety were synthesized. The pyrimidine analogs with uracil, 5-fluorouracil, thymine and cytosine and key intermediate with 6-chloropurine (5) as nucleobases were synthesized by a selective Mitsunobu reaction on the primary hydroxymethyl group in the presence of 5-endo-hydroxyl group. Adenine and 6-substituted adenine homonucleosides were obtained by the substitution of the 6-chlorine atom of the key intermediate 5 with ammonia and selected amines, and 6-methoxy- and 6-ethoxy substituted purine homonucleosides by reaction with the corresponding alkoxides. No derivatives appeared active against entero, yellow fever, chikungunya, and adeno type 1viruses. Two compounds (6j and 6d) had lower IC50 (15 ± 2 and 21 ± 4 µM) and compound 6f had an identical value of IC50 (28 ± 4 µM) to that of acyclovir, suggesting that the bicyclo[2.2.1]heptane skeleton could be further studied to find a candidate for sugar moiety of the nucleosides.
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Affiliation(s)
- Constantin I Tănase
- National Institute for Chemical-Pharmaceutical Research and Development, Department of bioactive substances and pharmaceutical technologies, 112 Vitan Av., 031299 Bucharest-3, Romania.
| | - Constantin Drăghici
- Organic Chemistry Center "C.D.Nenitescu", Spectroscopy Laboratory, 202 B Splaiul Independentei, 060023 Bucharest, Romania
| | - Anamaria Hanganu
- Organic Chemistry Center "C.D.Nenitescu", Spectroscopy Laboratory, 202 B Splaiul Independentei, 060023 Bucharest, Romania
| | - Lucia Pintilie
- National Institute for Chemical-Pharmaceutical Research and Development, Department of bioactive substances and pharmaceutical technologies, 112 Vitan Av., 031299 Bucharest-3, Romania
| | - Maria Maganu
- Organic Chemistry Center "C.D.Nenitescu", Spectroscopy Laboratory, 202 B Splaiul Independentei, 060023 Bucharest, Romania
| | - Alexandrina Volobueva
- Department of Virology, Pasteur Institute of Epidemiology and Microbiology, 197101 St. Petersburg, Russia
| | - Ekaterina Sinegubova
- Department of Virology, Pasteur Institute of Epidemiology and Microbiology, 197101 St. Petersburg, Russia
| | - Vladimir V Zarubaev
- Department of Virology, Pasteur Institute of Epidemiology and Microbiology, 197101 St. Petersburg, Russia
| | - Johan Neyts
- KU Leuven Department of Micobiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Herestraat 49, BE-3000 Leuven, Belgium
| | - Dirk Jochmans
- KU Leuven Department of Micobiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Herestraat 49, BE-3000 Leuven, Belgium
| | - Alexander V Slita
- KU Leuven Department of Micobiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Herestraat 49, BE-3000 Leuven, Belgium
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2
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Win NN, Kodama T, Lae KZW, Win YY, Ngwe H, Abe I, Morita H. Bis-iridoid and iridoid glycosides: Viral protein R inhibitors from Picrorhiza kurroa collected in Myanmar. Fitoterapia 2019; 134:101-107. [PMID: 30794917 DOI: 10.1016/j.fitote.2019.02.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/15/2019] [Accepted: 02/18/2019] [Indexed: 11/28/2022]
Abstract
Four new bis-iridoid glycosides, saungmaygaosides A-D (1-4), and six known iridoid glycosides (5-10) were isolated from the n-butanol extract of the stems of Picrorhiza kurroa collected in Myanmar. Their structures were elucidated by extensive spectroscopic techniques. All of the isolates were assayed for anti-Vpr activity, using TREx-HeLa-Vpr cells. Among the isolates, saungmaygaoside D (4), sylvestroside IV dimethyl acetal (7), and sweroside (8) were the most potent inhibitors with effective doses of 5 and 10 μM, respectively, without showing any notable cytotoxicities.
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Affiliation(s)
- Nwet Nwet Win
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan.
| | - Takeshi Kodama
- Department of Chemical and Biological Engineering, National Institute of Technology, Akita College, 1-1 Iijimabunkyo-cho, 011-8511 Akita, Japan
| | | | - Yi Yi Win
- Department of Chemistry, University of Yangon, Yangon 11041, Myanmar
| | - Hla Ngwe
- Department of Chemistry, University of Yangon, Yangon 11041, Myanmar
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan.
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3
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Du K, Kier MJ, Rheingold AL, Micalizio GC. Toward the Total Synthesis of Ryanodol via Oxidative Alkyne-1,3-Diketone Annulation: Construction of a Ryanoid Tetracycle. Org Lett 2018; 20:6457-6461. [PMID: 30264570 PMCID: PMC6199674 DOI: 10.1021/acs.orglett.8b02767] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Indexed: 12/04/2022]
Abstract
A synthetic strategy conceived with the intent of establishing a novel approach to the de novo construction of ryanoids is described that is based on a recently developed metallacycle-mediated intramolecular oxidative alkyne-1,3-diketone coupling reaction. In short, a one-pot annulation/oxidation sequence is shown to be capable of establishing a densely oxygenated polycyclic intermediate that could be converted to a composition of matter that contains the ABCD tetracyclic ring system present in the ryanoid family of natural products.
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Affiliation(s)
- Kang Du
- Department
of Chemistry, Dartmouth College, Burke Laboratory, Hanover, New Hampshire 03755, United States
| | - Matthew J. Kier
- Department
of Chemistry, Dartmouth College, Burke Laboratory, Hanover, New Hampshire 03755, United States
| | - Arnold L. Rheingold
- Department
of Chemistry, University of California—San
Diego, La Jolla, California 92093, United States
| | - Glenn C. Micalizio
- Department
of Chemistry, Dartmouth College, Burke Laboratory, Hanover, New Hampshire 03755, United States
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4
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Anti-HIV Agents From Nature: Natural Compounds From Hypericum hircinum and Carbocyclic Nucleosides From Iridoids. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2018. [DOI: 10.1016/b978-0-444-64058-1.00006-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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5
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1′-Homonucleosides and their structural analogues: A review. Eur J Med Chem 2016; 118:121-42. [DOI: 10.1016/j.ejmech.2016.04.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 04/12/2016] [Accepted: 04/12/2016] [Indexed: 11/18/2022]
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6
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Marković D, Barboux C, Salle de Chou Y, Bettach J, Grougnet R, Deguin B. Centrifugal partition chromatography: an efficient tool to access highly polar and unstable synthetic compounds on a large scale. RSC Adv 2014. [DOI: 10.1039/c4ra12141d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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7
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Okada Y, Shimada K, Kitano Y, Chiba K. Short-Step Anodic Access to Emissive RNA Homonucleosides. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301604] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Sunghwa F, Sakurai H, Saiki I, Koketsu M. Iodine-catalyzed etherification of morroniside. Chem Pharm Bull (Tokyo) 2009; 57:112-5. [PMID: 19122330 DOI: 10.1248/cpb.57.112] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, we describe a highly selective etherification procedure of unprotected morroniside catalyzed by molecular iodine in acetone. The etherification reaction furnished 7-O-alkyl ether derivatives in reasonable yields within few hours under neutral conditions. Studies of the obtained products on cytotoxicity activity in colon 26-L5 cell line were examined. Among the tested compounds, 7-O-dodecylmorroniside showed moderate cytotoxic activity, having IC50 values equal to 20.9 microM.
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Affiliation(s)
- Fortunatus Sunghwa
- Department of Chemistry, Faculty of Science, University of Dar es salaam, Dar es salaam, Tanzania
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9
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Bianco A, Napolitano R, Bonadies F, Celona D, Ortaggi G, Cametti C. Liposomes from a new chiral cationic lipid based on iridoidic template. Nat Prod Res 2007; 21:1221-7. [PMID: 18075883 DOI: 10.1080/14786410500162526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A new cationic polyhydroxylated lipid, characterized by a chiral template, was synthesized. It comes from an iridoid glucoside, as polyhydroxylated moiety. This lipid affords liposomes using cholesterol-like co-lipid. The liposomes had a spheroidal shape with a small size distribution.
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Affiliation(s)
- Armandodoriano Bianco
- Dipartimento di Chimica, Università La Sapienza, Piazzale Aldo Moro 5, 00185 Roma, Italy.
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Niidu A, Paju A, Eek M, Müürisepp AM, Pehk T, Lopp M. Synthesis of chiral hydroxylated cyclopentanones and cyclopentanes. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.09.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Mouriès C, Rakotondramasy VC, Libot F, Koch M, Tillequin F, Deguin B. Synthesis and Cytotoxicity of a Novel Iridoid Glucoside Derived from Aucubin. Chem Biodivers 2005; 2:695-703. [PMID: 17192013 DOI: 10.1002/cbdv.200590046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The novel iridoid glycoside 2 was prepared in six steps (15% overall yield) from natural aucubin (1) and fully characterized. Compound 2, which comprises the same conjugated cyclopentenone pharmacophore as known antitumor oxylipins and prostaglandins, displayed significant antiproliferative in vitro activity towards leukemia L1210 cells. The Michael addition of nucleophilic thiols to compound 2 occurred on a different position compared to classical delta7-prostaglandin A1 methyl ester. The resulting adducts 7a and 7b were fully characterized, and their MS fragmentation patterns were elucidated.
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Affiliation(s)
- Christine Mouriès
- Laboratoire de Pharmacognosie de l'Université René Descartes, U.M.R./C.N.R.S. no8638, Faculté des Sciences Pharmaceutiques et Biologiques, 4, Avenue de l'Observatoire, F-75006 Paris
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Mouriès C, Deguin B, Koch M, Tillequin F. Stereoselective Conversion of Aucubin into Polyfunctionalized Tetrahydro-1H-cyclopenta[c]furan Glucosides. Helv Chim Acta 2003. [DOI: 10.1002/hlca.200390005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Paju A, Kanger T, Pehk T, Müürisepp AM, Lopp M. Asymmetric oxidation of 3-alkyl-1,2-cyclopentanediones. Part 1: 3-Hydroxylation of 3-alkyl-1,2-cyclopentanediones. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0957-4166(02)00589-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Tillequin F, Cachet X, Deguin B, Koch M, Chiaroni A. Synthesis and Structural Assignment of Functionalized 8,9-Diazatricyclo[4.4.0.01,5]decane: A New Tricyclic System Including the Pyridazine Ring. HETEROCYCLES 2002. [DOI: 10.3987/com-01-9427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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