1
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Zhang Y, Guo H, Wu Q, Bi X, Shi E, Xiao J. Stereoselective synthesis of ( E)-α,β-unsaturated esters: triethylamine-catalyzed allylic rearrangement of enol phosphates. RSC Adv 2023; 13:13511-13515. [PMID: 37181505 PMCID: PMC10173029 DOI: 10.1039/d3ra02430j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 04/27/2023] [Indexed: 05/16/2023] Open
Abstract
α,β-Unsaturated esters are key structural motifs widely distributed in various biologically active molecules, and their Z/E-stereoselective synthesis has always been considered highly attractive in organic synthesis. Herein, we present a >99% (E)-stereoselective one-pot synthetic approach towards β-phosphoroxylated α,β-unsaturated esters via a mild trimethylamine-catalyzed 1,3-hydrogen migration of the corresponding unconjugated intermediates derived from the solvent-free Perkow reaction between low-cost 4-chloroacetoacetates and phosphites. Versatile β,β-disubstituted (E)-α,β-unsaturated esters were thus afforded with full (E)-stereoretentivity by cleavage of the phosphoenol linkage via Negishi cross-coupling. Moreover, a stereoretentive (E)-rich mixture of a α,β-unsaturated ester derived from 2-chloroacetoacetate was obtained and both isomers were easily afforded in one operation.
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Affiliation(s)
- Yulong Zhang
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Huichuang Guo
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Qian Wu
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Xiaojing Bi
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Enxue Shi
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Junhua Xiao
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
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2
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Jacobsen MT, Spaltenstein P, Giesler RJ, Chou DHC, Kay MS. Improved Handling of Peptide Segments Using Side Chain-Based "Helping Hand" Solubilizing Tools. Methods Mol Biol 2022; 2530:81-107. [PMID: 35761044 DOI: 10.1007/978-1-0716-2489-0_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Maintaining high, or even sufficient, solubility of every peptide segment in chemical protein synthesis (CPS) remains a critical challenge; insolubility of just a single peptide segment can thwart a total synthesis venture. Multiple approaches have been used to address this challenge, most commonly by employing a chemical tool to temporarily improve peptide solubility. In this chapter, we discuss chemical tools for introducing semipermanent solubilizing sequences (termed helping hands) at the side chains of Lys and Glu residues. We describe the synthesis, incorporation by Fmoc-SPPS, and cleavage conditions for utilizing these two tools. For Lys sites, we discuss the Fmoc-Ddap-OH dimedone-based linker, which is achiral, synthesized in one step, can be introduced directly at primary amines, and is removed using hydroxylamine (or hydrazine). For Glu sites, we detail the new Fmoc-SPPS building block, Fmoc-Glu(AlHx)-OH, which can be prepared in an efficient process over two purifications. Solubilizing sequences are introduced directly on-resin and later cleaved with palladium-catalyzed transfer under aqueous conditions to restore a native Glu side chain. These two chemical tools are straightforward to prepare and implement, and we anticipate continued usage in "difficult" peptide segments following the protocols described herein.
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Affiliation(s)
- Michael T Jacobsen
- Division of Diabetes and Endocrinology, Department of Pediatrics, Stanford University, Palo Alto, CA, USA
| | - Paul Spaltenstein
- Department of Biochemistry, University of Utah, Salt Lake City, UT, USA
| | - Riley J Giesler
- Department of Biochemistry, University of Utah, Salt Lake City, UT, USA
| | - Danny Hung-Chieh Chou
- Division of Diabetes and Endocrinology, Department of Pediatrics, Stanford University, Palo Alto, CA, USA
| | - Michael S Kay
- Department of Biochemistry, University of Utah, Salt Lake City, UT, USA.
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3
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Efficient O-deallylation triggered by cobalt hydride-catalyzed oxidative hydrofunctionalization. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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4
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Ahmadi P, Muguruma K, Chang TC, Tamura S, Tsubokura K, Egawa Y, Suzuki T, Dohmae N, Nakao Y, Tanaka K. In vivo metal-catalyzed SeCT therapy by a proapoptotic peptide. Chem Sci 2021; 12:12266-12273. [PMID: 34603656 PMCID: PMC8480321 DOI: 10.1039/d1sc01784e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/16/2021] [Indexed: 01/03/2023] Open
Abstract
Selective cell tagging (SeCT) therapy is a strategy for labeling a targeted cell with certain chemical moieties via a catalytic chemical transformation in order to elicit a therapeutic effect. Herein, we report a cancer therapy based on targeted cell surface tagging with proapoptotic peptides (Ac-GGKLFG-X; X = reactive group) that induce apoptosis when attached to the cell surface. Using either Au-catalyzed amidation or Ru-catalyzed alkylation, these proapoptotic peptides showed excellent therapeutic effects both in vitro and in vivo. In particular, co-treatment with proapoptotic peptide and the carrier-Ru complex significantly and synergistically inhibited tumor growth and prolonged survival rate of tumor-bearing mice after only a single injection. This is the first report of Ru catalyst application in vivo, and this approach could be used in SeCT for cancer therapy.
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Affiliation(s)
- Peni Ahmadi
- Biofunctional Synthetic Chemistry, RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Kyohei Muguruma
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology 2-12-1 Ookayama Meguro Tokyo 152-8552 Japan
| | - Tsung-Che Chang
- Biofunctional Synthetic Chemistry, RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Satoru Tamura
- Department of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University Yahaba Iwate 028-3694 Japan
| | - Kazuki Tsubokura
- Biofunctional Synthetic Chemistry, RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Yasuko Egawa
- Biofunctional Synthetic Chemistry, RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Takehiro Suzuki
- Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Naoshi Dohmae
- Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Yoichi Nakao
- School of Advanced Science and Engineering, Department of Chemistry and Biochemistry, Waseda University 3-4-1 Okubo Shinjuku Tokyo 169-8555 Japan
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry, RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako Saitama 351-0198 Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology 2-12-1 Ookayama Meguro Tokyo 152-8552 Japan
- Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University 18 Kremlyovskaya Street Kazan 420008 Russia
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5
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Hessel M van Dijk J, van der Marel GA, Codée JDC. Developments in the Synthesis of Mycobacterial Phenolic Glycolipids. CHEM REC 2021; 21:3295-3312. [PMID: 34581501 DOI: 10.1002/tcr.202100200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/09/2021] [Accepted: 09/09/2021] [Indexed: 11/11/2022]
Abstract
The highly lipophilic outer barrier of mycobacteria, such as M. tuberculosis and M. leprae, is key to their virulence and intrinsic antibiotic resistance. Various components of this mycomembrane interact with the host immune system but many of these interactions remain ill-understood. This review covers several chemical syntheses of one of these components, mycobacterial phenolic glycolipids (PGLs), and outlines the interaction of these PGLs with the human immune system, as established using these well-defined pure compounds.
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Affiliation(s)
- J Hessel M van Dijk
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Gijs A van der Marel
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Jeroen D C Codée
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
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6
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Berkefeld A, Fleischer I, Kathe PM. Nickel Hydride Catalyzed Cleavage of Allyl Ethers Induced by Isomerization. Synlett 2021. [DOI: 10.1055/s-0040-1706683] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AbstractThis report discloses the deallylation of O- and N-allyl functional groups by using a combination of a Ni-H precatalyst and excess Brønsted acid. Key steps are the isomerization of the O- or N-allyl group through Ni-catalyzed double-bond migration followed by Brønsted acid induced O/N–C bond hydrolysis. A variety of functional groups are tolerated in this protocol, highlighting its synthetic value.
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Affiliation(s)
- Andreas Berkefeld
- Institute of Inorganic Chemistry, Faculty of Science and Mathematics, Eberhard Karls University Tübingen
| | - Ivana Fleischer
- Institute of Organic Chemistry, Faculty of Science and Mathematics, Eberhard Karls University Tübingen
| | - Prasad M. Kathe
- Institute of Organic Chemistry, Faculty of Science and Mathematics, Eberhard Karls University Tübingen
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7
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Tang TM, Liu M, Wu H, Gou T, Hu X, Wang BQ, Hu P, Song F, Huang G. Pd-Catalyzed tandem C–C/C–O/C–H single bond cleavage of 3-allyloxybenzocyclobutenols. Org Chem Front 2021. [DOI: 10.1039/d0qo01619e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd-catalyzed skeletal rearrangement of 3-allyloxybenzocyclobutenols was achieved, which involved tandem C–C/C–O bond cleavage and C–H allylic substitution.
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Affiliation(s)
- Tian-Mu Tang
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Min Liu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Hongli Wu
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Ting Gou
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Xi Hu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Ping Hu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Feijie Song
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Genping Huang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
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8
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Li W, Yu B. Temporary ether protecting groups at the anomeric center in complex carbohydrate synthesis. Adv Carbohydr Chem Biochem 2020; 77:1-69. [PMID: 33004110 DOI: 10.1016/bs.accb.2019.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The synthesis of a carbohydrate building block usually starts with introduction of a temporary protecting group at the anomeric center and ends with its selective cleavage for further transformation. Thus, the choice of the anomeric temporary protecting group must be carefully considered because it should retain intact during the whole synthetic manipulation, and it should be chemoselectively removable without affecting other functional groups at a late stage in the synthesis. Etherate groups are the most widely used temporary protecting groups at the anomeric center, generally including allyl ethers, MP (p-methoxyphenyl) ethers, benzyl ethers, PMB (p-methoxybenzyl) eithers, and silyl ethers. This chapter provides a comprehensive review on their formation, cleavage, and applications in the synthesis of complex carbohydrates.
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Affiliation(s)
- Wei Li
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China.
| | - Biao Yu
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.
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9
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Ratković A, Kelava V, Marinić Ž, Škorić I. Buchwald-Hartwig amination of the chloro substituted benzobicyclo[3.2.1]octadiene skeleton using primary benzylic amines. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Liu C, Zou Y, Song H, Jiang YY, Hu HG. Arylboronate Ester Protected Amino Acids as Orthogonal Building Blocks for Fmoc Solid-Phase Peptide Synthesis. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chao Liu
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; 200433 Shanghai China
| | - Yan Zou
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; 200433 Shanghai China
| | - Hui Song
- College of Pharmacy; Weifang Medical University; 261053 Weifang, Shandong China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu China
| | - Hong-Gang Hu
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; 200433 Shanghai China
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11
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Mifleur A, Ledru H, Lopes A, Suisse I, Mortreux A, Sauthier M. Synthesis of Short-Chain Alkenyl Ethers from Primary and Bio-sourced Alcohols via the Nickel-Catalyzed Hydroalkoxylation Reaction of Butadiene and Derivatives. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500721] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Schmidt B, Riemer M, Schilde U. Tandem Claisen Rearrangement/6-endoCyclization Approach to Allylated and Prenylated Chromones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501151] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Takagi K, Fukuda H, Shuto S, Otaka A, Arisawa M. Safe Removal of the Allyl Protecting Groups of Allyl Esters using a Recyclable, Low-Leaching and Ligand-Free Palladium Nanoparticle Catalyst. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500055] [Citation(s) in RCA: 19] [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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15
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Hassam M, Taher A, Arnott GE, Green IR, van Otterlo WAL. Isomerization of Allylbenzenes. Chem Rev 2015; 115:5462-569. [DOI: 10.1021/acs.chemrev.5b00052] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mohammad Hassam
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Abu Taher
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Gareth E. Arnott
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Ivan R. Green
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Willem A. L. van Otterlo
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
- School
of Chemistry, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa
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16
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Imagawa H, Esumi T, Fukuyama Y. Synthetic Studies of Neurite Outgrowth-Promoting Neovibsanins. J SYN ORG CHEM JPN 2015. [DOI: 10.5059/yukigoseikyokaishi.73.902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroshi Imagawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri Univeristy
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17
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Kumar P, Cherian SK, Jain R, Show K. Chemoselective deprotection of N-allylic amines using DDQ. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Terekhov IV, Chistyakov EM, Filatov SN, Borisov RS, Kireev VV. Synthesis of hexakis(hydroxyaryloxy)cyclotriphosphazene based on bisphenol A. MENDELEEV COMMUNICATIONS 2014. [DOI: 10.1016/j.mencom.2014.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Humne V, Lokahnde P. Efficient Deallylation of Allyl Phenyl Ethers by Molecular Iodine in PEG-400 and Their Utility for Flavone Synthesis. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.837489] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Vivek Humne
- a Center for Advance Studies, Department of Chemistry , University of Pune , Pune , India
| | - Pradeep Lokahnde
- a Center for Advance Studies, Department of Chemistry , University of Pune , Pune , India
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20
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Ankner T, Stålsmeden AS, Hilmersson G. Selective cleavage of 3,5-bis-(trifluoromethyl)benzylcarbamate by SmI2-Et3N-H2O. Chem Commun (Camb) 2013; 49:6867-9. [PMID: 23792542 DOI: 10.1039/c3cc41642a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel electron poor protection group for amines has been developed. It undergoes rapid cleavage by SmI2-Et3N-H2O and its orthogonality towards the regular benzyl carbamate group (CBz) under reductive or transfer hydrogenolytic conditions is reported.
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Affiliation(s)
- Tobias Ankner
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
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22
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Nawghare BR, Lokhande PD. First Iodine-Catalyzed Deallylation of Reactive Allyl Methylene Esters. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.682245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Beena R. Nawghare
- a Centre for Advanced Studies, Department of Chemistry , University of Pune , Pune , India
| | - Pradeep D. Lokhande
- a Centre for Advanced Studies, Department of Chemistry , University of Pune , Pune , India
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23
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Kania J, Gundersen LL. Synthesis ofN-Alkenylpurines by Rearrangements of the CorrespondingN-Allyl Isomers: Scopes and Limitations. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201455] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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25
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Narender T, Venkateswarlu K, Madhur G, Reddy KP. Highly Efficient and Selective Deprotection Method for Prenyl, Geranyl, and Phytyl Ethers and Esters Using Borontrifluoride–Etherate. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2011.589561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- T. Narender
- a Medicinal and Process Chemistry Division, Central Drug Research Institute , Lucknow , India
| | - K. Venkateswarlu
- a Medicinal and Process Chemistry Division, Central Drug Research Institute , Lucknow , India
| | - G. Madhur
- a Medicinal and Process Chemistry Division, Central Drug Research Institute , Lucknow , India
| | - K. Papi Reddy
- a Medicinal and Process Chemistry Division, Central Drug Research Institute , Lucknow , India
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26
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Gärtner D, Konnerth H, von Wangelin AJ. Highly practical iron-catalyzed C–O cleavage reactions. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00266g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Barroso S, Castelli R, Baggelaar MP, Geerdink D, ter Horst B, Casas-Arce E, Overkleeft HS, van der Marel GA, Codée JDC, Minnaard AJ. Total synthesis of the triglycosyl phenolic glycolipid PGL-tb1 from Mycobacterium tuberculosis. Angew Chem Int Ed Engl 2012; 51:11774-7. [PMID: 23086739 DOI: 10.1002/anie.201206221] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Santiago Barroso
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
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28
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Barroso S, Castelli R, Baggelaar MP, Geerdink D, ter Horst B, Casas-Arce E, Overkleeft HS, van der Marel GA, Codée JDC, Minnaard AJ. Total Synthesis of the Triglycosyl Phenolic Glycolipid PGL-tb1 fromMycobacterium tuberculosis. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206221] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Imagawa H, Saijo H, Yamaguchi H, Maekawa K, Kurisaki T, Yamamoto H, Nishizawa M, Oda M, Kabura M, Nagahama M, Sakurai J, Kubo M, Nakai M, Makino K, Ogata M, Takahashi H, Fukuyama Y. Syntheses of structurally-simplified and fluorescently-labeled neovibsanin derivatives and analysis of their neurite outgrowth activity in PC12 cells. Bioorg Med Chem Lett 2012; 22:2089-93. [DOI: 10.1016/j.bmcl.2012.01.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 12/28/2011] [Accepted: 01/04/2012] [Indexed: 11/28/2022]
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30
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Varela‐Álvarez A, Sordo JA, Piedra E, Nebra N, Cadierno V, Gimeno J. Ruthenium(IV)‐Catalyzed Isomerization of the CC Bond ofO‐Allylic Substrates: A Theoretical and Experimental Study. Chemistry 2011; 17:10583-99. [DOI: 10.1002/chem.201101131] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Adrián Varela‐Álvarez
- Laboratorio de Química Computacional, Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Claveria 8, 33006 Oviedo (Spain), Fax: (+34) 985‐103‐125
| | - José A. Sordo
- Laboratorio de Química Computacional, Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Claveria 8, 33006 Oviedo (Spain), Fax: (+34) 985‐103‐125
| | - Estefanía Piedra
- Departamento de Química Orgánica e Inorgánica, IUQOEM (Unidad asociada al CSIC), Universidad de Oviedo, Julián Claveria 8, 33006 Oviedo (Spain), Fax: (+34) 985‐103‐446
| | - Noel Nebra
- Departamento de Química Orgánica e Inorgánica, IUQOEM (Unidad asociada al CSIC), Universidad de Oviedo, Julián Claveria 8, 33006 Oviedo (Spain), Fax: (+34) 985‐103‐446
| | - Victorio Cadierno
- Departamento de Química Orgánica e Inorgánica, IUQOEM (Unidad asociada al CSIC), Universidad de Oviedo, Julián Claveria 8, 33006 Oviedo (Spain), Fax: (+34) 985‐103‐446
| | - José Gimeno
- Departamento de Química Orgánica e Inorgánica, IUQOEM (Unidad asociada al CSIC), Universidad de Oviedo, Julián Claveria 8, 33006 Oviedo (Spain), Fax: (+34) 985‐103‐446
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31
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2011. [DOI: 10.1016/s0040-4020(11)00770-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Obermeier B, Frey H. Poly(ethylene glycol-co-allyl glycidyl ether)s: A PEG-Based Modular Synthetic Platform for Multiple Bioconjugation. Bioconjug Chem 2011; 22:436-44. [DOI: 10.1021/bc1004747] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Boris Obermeier
- Institute of Organic Chemistry, Organic and Macromolecular Chemistry, Duesbergweg 10-14, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Organic and Macromolecular Chemistry, Duesbergweg 10-14, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
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33
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NAGASHIMA H. Chemistry of Metal Encapsulated Polysiloxane Gel as Reusable Catalysts. KOBUNSHI RONBUNSHU 2011. [DOI: 10.1295/koron.68.393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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van Rijn JA, Guijt MC, de Vries D, Bouwman E, Drent E. Scope of the allylation reaction with [RuCp(PP)]+ catalysts: changing the nucleophile or allylic alcohol. Appl Organomet Chem 2010. [DOI: 10.1002/aoc.1744] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2010. [DOI: 10.1016/s0040-4020(10)01735-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Fuse S, Tsukamoto H, Yuan Y, Wang TSA, Zhang Y, Bolla M, Walker S, Sliz P, Kahne D. Functional and structural analysis of a key region of the cell wall inhibitor moenomycin. ACS Chem Biol 2010; 5:701-11. [PMID: 20496948 DOI: 10.1021/cb100048q] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Moenomycin A (MmA) belongs to a family of natural products that inhibit peptidoglycan biosynthesis by binding to the peptidoglycan glycosyltransferases, the enzymes that make the glycan chains of peptidoglycan. MmA is remarkably potent, but its clinical utility has been hampered by poor physicochemical properties. Moenomycin contains three structurally distinct regions: a pentasaccharide, a phosphoglycerate, and a C25 isoprenyl (moenocinyl) lipid tail that gives the molecule its name. The phosphoglycerate moiety links the pentasaccharide to the moenocinyl chain. This moiety contains two negatively charged groups, a phosphoryl group and a carboxylate. Both the phosphoryl group and the carboxylate have previously been implicated in target binding but the role of the carboxylate has not been explored in detail. Here we report the synthesis of six MmA analogues designed to probe the importance of the phosphoglycerate. These analogues were evaluated for antibacterial and enzyme inhibitory activity; the specific contacts between the phosphoglycerate and the protein target were assessed by X-ray crystallography in conjunction with molecular modeling. Both the phosphoryl group and the carboxylate of the phosphoglycerate chain play roles in target binding. The negative charge of the carboxylate, and not its specific structure, appears to be the critical feature in binding since replacing it with a negatively charged acylsulfonamide group produces a more active compound than replacing it with the isosteric amide. Analysis of the ligand-protein contacts suggests that the carboxylate makes a critical contact with an invariant lysine in the active site. The reported work provides information and validated computational methods critical for the design of analogues based on moenomycin scaffolds.
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Affiliation(s)
- Shinichiro Fuse
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Hirokazu Tsukamoto
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Yanqiu Yuan
- Department of Microbiology and Molecular Genetics
| | - Tsung-Shing Andrew Wang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Yi Zhang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Megan Bolla
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | | | - Piotr Sliz
- Department of Pediatrics
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115
| | - Daniel Kahne
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115
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37
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Gauthier D, Lindhardt AT, Olsen EPK, Overgaard J, Skrydstrup T. In Situ Generated Bulky Palladium Hydride Complexes as Catalysts for the Efficient Isomerization of Olefins. Selective Transformation of Terminal Alkenes to 2-Alkenes. J Am Chem Soc 2010; 132:7998-8009. [DOI: 10.1021/ja9108424] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Delphine Gauthier
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Anders T. Lindhardt
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Esben P. K. Olsen
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Jacob Overgaard
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Troels Skrydstrup
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
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38
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Elliott TS, Nemeth J, Swain SA, Conway SJ. A synthesis of dioctanoyl phosphatidylinositol. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.11.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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39
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Carlucci M, Kierzek E, Marciniak A, Turner DH, Kierzek R. Chemical synthesis of LNA-2-thiouridine and its influence on stability and selectivity of oligonucleotide binding to RNA. Biochemistry 2009; 48:10882-93. [PMID: 19835380 PMCID: PMC2839159 DOI: 10.1021/bi901506f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hybridization to RNA is important for many applications, including antisense therapeutics, RNA interference, and microarray screening. Similar thermodynamic stabilities of A-U and G-U base pairs result in difficulties in selective binding to RNA. Moreover, A-U pairs are weaker than G-C pairs so that binding is sometimes weak when many A-U pairs are present. It is known, however, that replacement of uridine with 2-thiouridine significantly improves binding and selectivity. To test for additional improvement of binding and of the specificity for binding A over G, LNA-2-thiouridine was synthesized for the first time and incorporated into many LNA-2'-O-methyl-RNA/RNA duplexes. UV melting was used to measure the thermodynamic effect of replacing 2'-O-methyluridine with 2'-O-methyl-2-thiouridine or LNA-2-thiouridine. The 2-thiouridine usually enhances binding and selectivity. Selectivity is optimized when a single 2-thiouridine is placed at an internal position in a duplex.
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Affiliation(s)
- Marta Carlucci
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznan, Noskowskiego 12/14, Poland
| | - Elzbieta Kierzek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznan, Noskowskiego 12/14, Poland
| | - Anna Marciniak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznan, Noskowskiego 12/14, Poland
| | - Douglas H. Turner
- Department of Chemistry, University of Rochester, RC Box 270216, Rochester, NY 14627-0216, USA
- Center for Pediatric Biomedical Research, University of Rochester, School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - Ryszard Kierzek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznan, Noskowskiego 12/14, Poland
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40
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Affiliation(s)
- Albert Isidro-Llobet
- Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
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41
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Carvalho AE, Alcantara GB, Oliveira SM, Micheletti AC, Honda NK, Maia G. Electroreduction of lichexanthone. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.10.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Imagawa H, Saijo H, Kurisaki T, Yamamoto H, Kubo M, Fukuyama Y, Nishizawa M. Total Synthesis of (±)-Neovibsanin B. Org Lett 2009; 11:1253-5. [DOI: 10.1021/ol802973f] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroshi Imagawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cyo, Tokushima 770
| | - Hayato Saijo
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cyo, Tokushima 770
| | - Takahiro Kurisaki
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cyo, Tokushima 770
| | - Hirofumi Yamamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cyo, Tokushima 770
| | - Miwa Kubo
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cyo, Tokushima 770
| | - Yoshiyasu Fukuyama
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cyo, Tokushima 770
| | - Mugio Nishizawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cyo, Tokushima 770
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43
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Hirakawa T, Tanaka S, Usuki N, Kanzaki H, Kishimoto M, Kitamura M. A Magnetically Separable Heterogeneous Deallylation Catalyst: [CpRu(η3-C3H5)(2-pyridinecarboxylato)]PF6Complex Supported on a Ferromagnetic Microsize Particle Fe3O4@SiO2. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801166] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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44
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Convenient synthesis of isoxazolines via tandem isomerization of allyl compounds to vinylic derivatives and 1,3-dipolar cycloaddition of nitrile oxides to the vinylic compounds. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.176] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Tetrahedron reports on organic chemistry. Tetrahedron 2008. [DOI: 10.1016/s0040-4020(08)00897-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Minta E, Kafarski P, Martinez J, Rolland V. Synthesis of cyclooctapeptides: constraints analogues of the peptidic neurotoxin, omega-agatoxine IVB-an experimental point of view. J Pept Sci 2008; 14:267-77. [PMID: 17853503 DOI: 10.1002/psc.919] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
omega-AGA IVB is an important lead structure when considering the design of effectors of glutamate release inducting P/Q-type calcium channels. The best route to achieve the analogues possessing the three-dimensional arrangement corresponding to the native binding loop was the introduction of constraint by ring formation via side chain to side chain lactamization for suitably protected Lys and Glu residues. Since tryptophane residue located at position 14 of this neuropeptide has been suggested as essential for binding, analogues in which this amino acid was replaced by aza-tryptophane and alanine were synthesized. The synthesis was carried out on various acid-labile resins (BARLOS chlorotrityl, Rink amide, PEG-based or Wang resins), by Fmoc strategy. In this paper, we describe optimization of the peptide cyclization with various protecting groups, and on resin or in solution cyclization experimental parameters.
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Affiliation(s)
- Ewelina Minta
- IBMM, UMR 5247, CNRS, Max Mousseron Institut of Biomolecules, Montpellier 1 & 2, Place E.Bataillon, Montpellier, France
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47
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Mora G, Piechaczyk O, Le Goff XF, Le Floch P. Palladium-Catalyzed Deallylation of Allyl Ethers with a Xanthene Phosphole Ligand. Experimental and DFT Mechanistic Studies. Organometallics 2008. [DOI: 10.1021/om800051n] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guilhem Mora
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
| | - Olivier Piechaczyk
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
| | - Xavier F. Le Goff
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
| | - Pascal Le Floch
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
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48
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Motoyama Y, Abe M, Kamo K, Kosako Y, Nagashima H. Encapsulated molecular catalysts in polysiloxane gels: ruthenium cluster-catalyzed isomerization of alkenes. Chem Commun (Camb) 2008:5321-3. [DOI: 10.1039/b809937e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Tsukamoto H, Suzuki T, Sato M, Kondo Y. Chromatography-free Pd-catalyzed deprotection of allyl ethers using PS-DEAM as a scavenger of boronic acids and Pd catalyst. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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50
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)01371-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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