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Li J, Li B, Chen J, Jia X, Wang M, Hao C, Zheng X, Dai H, Hu W. Catalyst-free gem-chlorosulfurization of difluoromethyl-substituted diazo compounds with disulfide and PhICl 2. Org Biomol Chem 2021; 19:8030-8034. [PMID: 34486639 DOI: 10.1039/d1ob01422f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of gem-chlorosulfurization products bearing difluoromethyl substituents were synthesized in high to excellent yields directly from p-toluenesulfonyl difluorodiazoethane (TsCF2CHN2), disulfides and PhICl2 without any catalysts or additives. The mild reaction conditions and high functional group compatibility indicated the utility and sustainability of the method. In addition, the gem-chlorosulfurization products could be efficiently converted to sulfur-containing and aryl substituted difluoromethyl derivatives by a feasible multi-component operation.
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Affiliation(s)
- Jiuling Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China. .,Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Bin Li
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Juan Chen
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Xinyu Jia
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Min Wang
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Chengjun Hao
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Xinhua Zheng
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Hongmei Dai
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, China.
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
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Xing L, Zhang Y, Li B, Du Y. In Situ Formation of RSCl/ArSeCl and Their Application to the Synthesis of 4-Chalcogenylisocumarins/Pyrones from o-(1-Alkynyl)benzoates and (Z)-2-Alken-4-ynoates. Org Lett 2019; 21:3620-3624. [DOI: 10.1021/acs.orglett.9b01046] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linlin Xing
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yong Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Bing Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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4
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Wu H, Hsung RP, Tang Y. Total Syntheses of (±)-Rhodonoids A and B and C12-epi-Rhodonoid B. J Org Chem 2017; 82:1545-1551. [PMID: 28034311 DOI: 10.1021/acs.joc.6b02739] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Total syntheses of (±)-rhodonoids A and B and C12-epi-rhodonoid B are described here. A unified strategy employed in these syntheses is an intramolecular oxa-[3 + 3] annulation for accessing the chromene unit. A Fe(OTf)3-promoted diastereoselective cationic [2 + 2] cycloaddition and a photochemical [2 + 2] cycloaddition were featured to construct the cyclobutane core of (±)-rhodonoids A and B and C12-epi-rhodonoid B, respectively. Fe(OTf)3 also leads to an interesting bridged tetracycle, which was unambiguously confirmed by single crystal X-ray analysis.
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Affiliation(s)
- Hao Wu
- School of Pharmaceutical Science and Technology, Tianjin University , Tianjin, 300072 P. R. China
| | - Richard P Hsung
- School of Pharmacy, University of Wisconsin , Madison, Wisconsin 53705, United States
| | - Yu Tang
- School of Pharmaceutical Science and Technology, Tianjin University , Tianjin, 300072 P. R. China.,Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237, P. R. China
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5
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Kumamoto H, Fukano M, Nakano T, Iwagami K, Takeyama C, Kohgo S, Imoto S, Amano M, Kuwata-Higashi N, Aoki M, Abe H, Mitsuya H, Fukuhara K, Haraguchi K. Diastereoselective Synthesis of 6″-(Z)- and 6″-(E)-Fluoro Analogues of Anti-hepatitis B Virus Agent Entecavir and Its Evaluation of the Activity and Toxicity Profile of the Diastereomers. J Org Chem 2016; 81:2827-36. [PMID: 27009432 DOI: 10.1021/acs.joc.6b00105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A method for the diastereoselective synthesis of 6″-(Z)- and 6″-(E)-fluorinated analogues of the anti-HBV agent entecavir has been developed. Construction of the methylenecyclopentane skeleton of the target molecules has been accomplished by radical-mediated 5-exo-dig cyclization of the selenides 6 and 15 having the phenylsulfanylethynyl structure as a radical accepting moiety. In the radical reaction of the TBS-protected precursor 6, (Z)-anti-12 was formed as a major product. On the other hand, TIPS-protected 15 gave (E)-anti-12. The sulfur-extrusive stannylation of anti-12 furnished a mixture of geometric isomers of the respective vinylstannane, whereas benzoyl-protected 17 underwent the stannylation in the manner of retention of configuration. Following XeF2-mediated fluorination, introduction of the purine base and deoxygenation of the resulting carbocyclic guanosine gave the target (E)- and (Z)-3 after deprotection. Evaluation of the anti-HBV activity of 3 revealed that fluorine-substitution at the 6″-position of entecavir gave rise to a reduction in the cytotoxicity in HepG2 cells with retention of the antiviral activity.
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Affiliation(s)
- Hiroki Kumamoto
- School of Pharmacy, Showa University , 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Misato Fukano
- School of Pharmacy, Showa University , 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Tomohiko Nakano
- School of Pharmacy, Showa University , 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Keito Iwagami
- School of Pharmacy, Showa University , 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Chiaki Takeyama
- School of Pharmacy, Showa University , 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Satoru Kohgo
- Center for Clinical Sciences, National Center for Global Health and Medicine , 1-21-1 Toyama, Shinjuku, Tokyo 162-8655, Japan
| | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University , 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Masayuki Amano
- Department of Infectious Diseases and Hematology, Kumamoto University School of Medicine , Kumamoto 860-8556, Japan
| | - Nobuyo Kuwata-Higashi
- Department of Infectious Diseases and Hematology, Kumamoto University School of Medicine , Kumamoto 860-8556, Japan
| | - Manabu Aoki
- Department of Medical Technology, Kumamoto Heath Science University , 325 Izumimachi, Kumamoto 861-5598, Japan
| | - Hiroshi Abe
- Department of Chemistry, Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Hiroaki Mitsuya
- Experimental Retrovirology Section, HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Kiyoshi Fukuhara
- School of Pharmacy, Showa University , 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Kazuhiro Haraguchi
- Nihon Pharmaceutical University , 10281 Komuro, Inamachi, Kita-adachi-gun, Saitama 362-0806, Japan
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Dumitrescu L, Eppe G, Tikad A, Pan W, El Bkassiny S, Gurcha SS, Ardá A, Jiménez-Barbero J, Besra GS, Vincent SP. Selectfluor and NFSI exo-glycal fluorination strategies applied to the enhancement of the binding affinity of galactofuranosyltransferase GlfT2 inhibitors. Chemistry 2014; 20:15208-15. [PMID: 25251918 DOI: 10.1002/chem.201404180] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Indexed: 12/31/2022]
Abstract
Two complementary methods for the synthesis of fluorinated exo-glycals have been developed, for which previously no general reaction had been available. First, a Selectfluor-mediated fluorination was optimized after detailed analysis of all the reaction parameters. A dramatic effect of molecular sieves on the course of the reaction was observed. The reaction was generalized with a set of biologically relevant furanosides and pyranosides. A second direct approach involving carbanionic chemistry and the use of N-fluorobenzenesulfonimide (NFSI) was performed and this method gave better diastereoselectivities. Assignment of the Z/E configuration of all the fluorinated exo-glycals was achieved based on the results of HOESY experiments. Furthermore, fluorinated exo-glycal analogues of UDP-galactofuranose were prepared and assayed against GlfT2, which is a key enzyme involved in the cell-wall biosynthesis of major pathogens. The fluorinated exo-glycals proved to be potent inhibitors as compared with a series of C-glycosidic analogues of UDP-Galf, thus demonstrating the double beneficial effect of the exocyclic enol ether functionality and the fluorine atom.
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Affiliation(s)
- Lidia Dumitrescu
- University of Namur (UNamur), Département de Chimie, Laboratoire de Chimie Bio-Organique rue de Bruxelles 61, B-5000 Namur (Belgium), Fax: (+32) 81-72-45-17
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7
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Markó IE, Schevenels FT. Anionic cascade reactions. One-pot assembly of (Z)-chloro-exo-methylenetetrahydrofurans from β-hydroxyketones. Beilstein J Org Chem 2013; 9:1319-25. [PMID: 23843927 PMCID: PMC3701418 DOI: 10.3762/bjoc.9.148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 06/12/2013] [Indexed: 12/13/2022] Open
Abstract
The assembly of (Z)-chloro-exo-methylenetetrahydrofurans by an original and connective anionic cascade sequence is reported. Base-catalysed condensation of β-hydroxyketones with 1,1-dichloroethylene generates, in moderate to good yields, the corresponding (Z)-chloro-exo-methylenetetrahydrofurans. Acidic treatment of this motif leads to several unexpected dimers, possessing unique structural features.
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Affiliation(s)
- István E Markó
- Université catholique de Louvain, Laboratory of Organic and Medicinal chemistry, Place Louis Pasteur 1 bte L4.01.02, 1348 Louvain-la-Neuve; Belgium, Fax 0032-10-472788
| | - Florian T Schevenels
- Université catholique de Louvain, Laboratory of Organic and Medicinal chemistry, Place Louis Pasteur 1 bte L4.01.02, 1348 Louvain-la-Neuve; Belgium, Fax 0032-10-472788
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8
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Habib S, Larnaud F, Pfund E, Lequeux T, Fenet B, Goekjian PG, Gueyrard D. Synthesis of Fluorinatedexo-Glycals through Modified Julia Olefination. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201719] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Sohail M, Raza AR. A Novel One Pot Synthesis of o-Nitrophenylacetic Acid and Unexpected p-Nitrobenzoic Acid by HNO3-Mediated CH2 Extrusion Reaction of Phenylacetic Acid. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201180458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Okamoto K, Sakagami M, Feng F, Togame H, Takemoto H, Ichikawa S, Matsuda A. Total Synthesis and Biological Evaluation of Pacidamycin D and Its 3′-Hydroxy Analogue. J Org Chem 2012; 77:1367-77. [DOI: 10.1021/jo202159q] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kazuya Okamoto
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11, Kita-ku, Sapporo 001-0021, Japan
| | - Masahiro Sakagami
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11, Kita-ku, Sapporo 001-0021, Japan
| | - Fei Feng
- Faculty of Advanced Life Science, Hokkaido University, Kita-21, Nishi-11, Kita-ku, Sapporo,
001-0021, Japan
| | - Hiroko Togame
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11, Kita-ku, Sapporo 001-0021, Japan
| | - Hiroshi Takemoto
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11, Kita-ku, Sapporo 001-0021, Japan
| | - Satoshi Ichikawa
- Faculty of Pharmaceutical
Sciences, Hokkaido University, Kita-12,
Nishi-6, Kita-ku, Sapporo
060-0812, Japan
| | - Akira Matsuda
- Faculty of Pharmaceutical
Sciences, Hokkaido University, Kita-12,
Nishi-6, Kita-ku, Sapporo
060-0812, Japan
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Okamoto K, Sakagami M, Feng F, Togame H, Takemoto H, Ichikawa S, Matsuda A. Total Synthesis of Pacidamycin D by Cu(I)-Catalyzed Oxy Enamide Formation. Org Lett 2011; 13:5240-3. [DOI: 10.1021/ol202124b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kazuya Okamoto
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan, and Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Masahiro Sakagami
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan, and Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Fei Feng
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan, and Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Hiroko Togame
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan, and Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Hiroshi Takemoto
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan, and Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Satoshi Ichikawa
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan, and Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Akira Matsuda
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan, and Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
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12
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Wnuk SF, Sacasa PR, Restrepo J. Application of germyldesulfonylation reactions to the synthesis of germanium-containing nucleoside analogues. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2010; 28:537-49. [PMID: 20183601 DOI: 10.1080/15257770903054340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Treatment of the protected (E)-5'-deoxy-5'-[(p-toluenesulfonyl)methylene]uridine and adenosine derivatives with tributyl- or triphenylgermane hydride (AIBN/toluene/Delta) effected radical-mediated germyldesulfonylations to give 5'-(tributyl- or triphenylgermyl)methylene-5'-deoxyuridine and adenosine derivatives as single (E)-isomers. Analogous treatment of 2'-deoxy-2'-[(phenylsulfonyl)methylene]uridine with Ph(3)GeH afforded the corresponding vinyl triphenylgermane product. Stereoselective halodegermylation of the (E)-5'-(tributylgermyl)methylene-5'-deoxy nucleosides with N-iodosuccinimide or N-bromosuccinimide provided the Wittig-type (E)-5'-deoxy-5'-(halomethylene) nucleosides quantitatively, while no halodegermylations was observed with the 5'-deoxy-5'-(triphenylgermyl)methylene counterparts. Treatment of the vinyl trialkylgermanes with aqueous trifluoroacetic acid effected protiodegermylation, while vinyl triarylgermanes were stable under the acidic conditions.
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Affiliation(s)
- Stanislaw F Wnuk
- Department of Chemistry & Biochemistry, Florida International University, Miami, Florida, USA.
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13
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Kumamoto H, Deguchi K, Wagata T, Furuya Y, Odanaka Y, Kitade Y, Tanaka H. Radical-mediated stannylation of vinyl sulfones: access to novel 4′-modified neplanocin A analogues. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.07.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Kim BG, Chun TG, Lee HY, Snapper ML. A new structural class of S-adenosylhomocysteine hydrolase inhibitors. Bioorg Med Chem 2009; 17:6707-14. [PMID: 19692248 DOI: 10.1016/j.bmc.2009.07.061] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Revised: 07/21/2009] [Accepted: 07/23/2009] [Indexed: 11/26/2022]
Abstract
Effective inhibitors of S-adenosylhomocysteine hydrolase hold promise towards becoming useful therapeutic agents. Since most efforts have focused on the development of nucleoside analog inhibitors, issues regarding bioavailability and selectivity have been major challenges. Considering the marine sponge metabolite ilimaquinone was found to be a competitive inhibitor of S-adenosylhomocysteine hydrolase, new opportunities for developing selective new inhibitors of this enzyme have become available. Based on the activities of various hybrid analogs, SAR studies, pharmacophore modeling, and computer docking studies have lead to a predictive understanding of ilimaquinone's S-adenosylhomocysteine hydrolase inhibitory activities. These studies have allowed for the design and preparation of simplified structural variants possessing new furanoside bioisosteres with 100-fold greater inhibitory activities than that of the natural product.
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Affiliation(s)
- Byung Gyu Kim
- Merkert Chemistry Center, Department of Chemistry, Boston College, Chestnut Hill, MA 02467, USA
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β-Halovinylsilanes in oligoyne synthesis: a fluoride-catalysed unmasking of alkynes from β-fluorovinylsilanes. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.05.081] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Functionalized fluoroalkyl and alkenyl silanes: Preparations, reactions, and synthetic applications. J Fluor Chem 2008. [DOI: 10.1016/j.jfluchem.2008.05.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Akkerman F, Kickbusch R, Lentz D. Synthesis of Fluorinated Dienes by Palladium-Catalyzed Coupling Reactions. Chem Asian J 2008; 3:719-31. [DOI: 10.1002/asia.200700313] [Citation(s) in RCA: 27] [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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18
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Kumamoto H, Deguchi K, Takahashi N, Tanaka H, Kitade Y. Synthesis of novel 4'-modified neplanocin A analogues and their inhibitory activity against S-adenosyl-L-l-homocysteine hydrolase. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2008; 26:733-6. [PMID: 18066891 DOI: 10.1080/15257770701493617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A new approach was developed for the synthesis of 4'-modified neplanocin A analogues, as potential inhibitors against S-adenosyl-L-homocysteine hydrolase. The vinylstannane 13, a key intermediate in the present approach, was prepared by radical-mediated sulfur-extrusive stannylation.
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Affiliation(s)
- Hiroki Kumamoto
- School of Pharmaceutical Sciences, Showa University, Tokyo, Japan.
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19
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Shen YC, Wang GP. Stereospecific Synthesis of (Z)-α-Fluoro-β-trifluoromethyl Vinyl Iodides and Their Application to the Synthesis of Polyfluorinated Thienyl Alkadienes†. CHINESE J CHEM 2006. [DOI: 10.1002/cjoc.200690231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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