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Chen Y, Li W, Xing H. Chemistries and applications of DNA-natural product conjugate. Front Chem 2022; 10:984916. [PMID: 36147254 PMCID: PMC9489112 DOI: 10.3389/fchem.2022.984916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 08/04/2022] [Indexed: 11/22/2022] Open
Abstract
Natural products and their derivatives have made great contributions to chemotherapy, especially for the treatment of tumors and infections. Despite the achievements, natural product-based small molecule drugs usually suffer from side effects, short circulation time, and solubility issue. To overcome these drawbacks, a common approach is to integrate another bio-functional motif into a natural product compound, enabling targeted or synergistic therapy. One of the most promising strategies is to form a DNA-natural product conjugate to improve therapeutic purposes. The incorporated DNA molecules can serve as an aptamer, a nucleic-acid-based congener of antibody, to specifically bind to the disease target of interest, or function as a gene therapy agent, such as immuno-adjuvant or antisense, to enable synergistic chemo-gene therapy. DNA-natural product conjugate can also be incorporated into other DNA nanostructures to improve the administration and delivery of drugs. This minireview aims to provide the chemistry community with a brief overview on this emerging topic of DNA-natural product conjugates for advanced therapeutics. The basic concepts to use the conjugation, the commonly used robust conjugation chemistries, as well as applications in targeted therapy and synergistic therapy of using DNA-natural product conjugates, are highlighted in this minireview. Future perspectives and challenges of this field are also discussed in the discussion and perspective section.
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Efremova IE, Lapshina LV, Baichurin RI, Serebryannikova AV, Savel’ev II. Synthesis of Polycyclic Systems Based on Sulfolenes. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220080010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sheng SR, Zhou W, Sang XY, Liu XL, Wang QY. Solid-phase synthesis of acrylamides with polymer-bound 2-sulfonylpropanoic acid. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/0308234042430412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel polystyrene-bound 2-sulfonylpropanoic acid has been developed and applied to convenient, traceless synthesis of acrylamides in good yield and purity.
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Affiliation(s)
- Shou-Ri Sheng
- Institutes of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330027, P. R. China
| | - Wei Zhou
- Institutes of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330027, P. R. China
| | - Xiao-Yan Sang
- Institutes of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330027, P. R. China
| | - Xiao-Ling Liu
- Institutes of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330027, P. R. China
| | - Qiu-Ying Wang
- Institutes of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330027, P. R. China
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Okorochenkov S, Burglova K, Popa I, Hlavac J. Solid-supported hydrazone of 4-(4'-formyl-3'-methoxyphenoxy)butyric acid as a new traceless linker for solid-phase synthesis. Org Lett 2015; 17:180-3. [PMID: 25536078 DOI: 10.1021/ol5034223] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The use of a hydrazine derived from a backbone amide linker as a new hydrazone-based traceless linker for solid-phase organic synthesis is described. The stability of the linker was tested under various conditions, including treatment with acids, bases, and borohydrides. Final compounds can be released by selective cleavage using trimethylsilanolate. To demonstrate the versatility of the linker, the synthesis of a model compound under various reaction conditions was performed with good results.
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Affiliation(s)
- Sergei Okorochenkov
- Department of Organic Chemistry, Faculty of Science, Palacký University , 771 46 Olomouc, Czech Republic
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Johnstone KD, Pearce WA, Pyke SM. Porphyrin building blocks: using a modified Barton-Zard approach to construct annulated pyrroles. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424602000798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A modification of the Barton-Zard pyrrole synthesis involving condensation of isocyanoacetate esters with cyclic unsaturated sulfones using sodium hydride as base is demonstrated for the construction of annulated pyrroles.
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Affiliation(s)
- Ken D. Johnstone
- Department of Chemistry, The University of Adelaide, SA 5005, Australia
| | - Wayne A. Pearce
- Department of Chemistry, The University of Adelaide, SA 5005, Australia
| | - Simon M. Pyke
- Department of Chemistry, The University of Adelaide, SA 5005, Australia
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Gulevich AV, Zhdanko AG, Orru RVA, Nenajdenko VG. Isocyanoacetate Derivatives: Synthesis, Reactivity, and Application. Chem Rev 2010; 110:5235-331. [DOI: 10.1021/cr900411f] [Citation(s) in RCA: 470] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anton V. Gulevich
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Alexander G. Zhdanko
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Valentine G. Nenajdenko
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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Back TG, Clary KN, Gao D. Cycloadditions and Cyclizations of Acetylenic, Allenic, and Conjugated Dienyl Sulfones. Chem Rev 2010; 110:4498-553. [DOI: 10.1021/cr1000546] [Citation(s) in RCA: 191] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas G. Back
- Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Kristen N. Clary
- Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Detian Gao
- Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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Yoshida M, Hedberg C, Kaiser M, Waldmann H. Traceless solid phase synthesis of natural product inspired cis-1,2-dehydrodecalins. Chem Commun (Camb) 2009:2926-8. [DOI: 10.1039/b901041f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bhattacharya R, Atta AK, Dey D, Pathak T. Densely Functionalized Chiral Pyrroles from Endocyclic, Exocyclic, and Acyclic Vinyl Sulfone-Modified Carbohydrates. J Org Chem 2008; 74:669-74. [DOI: 10.1021/jo801948m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rahul Bhattacharya
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - Ananta Kumar Atta
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - Debanjana Dey
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - Tanmaya Pathak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
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Chang YF, Liu CY, Guo CW, Wang YC, Fang JM, Cheng WC. Solid-Phase Organic Synthesis of Polyisoprenoid Alcohols with Traceless Sulfone Linker. J Org Chem 2008; 73:7197-203. [DOI: 10.1021/jo8010182] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yi-Fan Chang
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Chen-Yu Liu
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Chih-Wei Guo
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Yen-Chih Wang
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Jim-Min Fang
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Wei-Chieh Cheng
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
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Chang YF, Jiang YR, Cheng WC. Traceless sulfone linker cleavage triggered by ozonolysis: solid-phase synthesis of diverse α-β-unsaturated carbonyl compounds. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.11.064] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Liu X, Sheng S, Zhou W, Wang Q, Zhang X, Gong B. Facile Solid‐Phase Synthesis of Cycloalkylphosphonates and 1‐Cycloalkenylphosphonates Using Polymer‐Supported Phenylsulfonylmethylphosphonates. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910600978515] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Xiao‐Ling Liu
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang, China
| | - Shou‐Ri Sheng
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang, China
| | - Wei Zhou
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang, China
| | - Qin‐Ying Wang
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang, China
| | - Xiao‐Lan Zhang
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang, China
| | - Bin Gong
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang, China
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Affiliation(s)
- I. Forristal
- a Chemistry Department , King Fahd University of Petroleum & Minerals , P.O. Box 1835, Dhahran, 31261, Saudi Arabia
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Robins LI, Carpenter RD, Fettinger JC, Haddadin MJ, Tinti DS, Kurth MJ. Diazocinones: synthesis and conformational analysis. J Org Chem 2007; 71:2480-5. [PMID: 16526800 DOI: 10.1021/jo052577a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
1,2,4,5-Tetrazines (prepared from aryl nitriles) condense with isoxazolylcyclobutanones (prepared from 3-benzenesulfonyl-3-vinylcyclobutanol) in methanolic KOH to give conformationally restricted 6-isoxazol-5-yl-6,7-dihydro-5H-[1,2]diazocin-4-ones. The solution 1H NMR spectra of dihydrodiazocinone 1a with phenyl moieties at C3 and C8 reveal two conformations of the eight-membered heterocycle that are non-interconverting on the NMR time scale at ambient temperature. The kinetics of the conversion process, followed by 1H NMR between 21 and 70 degrees C in DMSO solution, yield an activation energy of approximately 21 kcal/mol relative to the kinetic conformer and show an equilibrated ratio of approximately 5:1 of the thermodynamic to the kinetic conformers. The electronic structure calculations on a model dihydrodiazocinone predict geometries for the two conformations. One of these geometries agrees with the X-ray crystallographic analysis of the thermodynamic conformation of 1a.
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Affiliation(s)
- Lori I Robins
- Department of Chemistry, One Shields Avenue, University of California, Davis, California 95616, USA
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Souto JA, López CS, Faza ON, Alvarez R, de Lera AR. 2-Alkylidenesulfol-3-enes by (regio- and) stereoselective cheletropic addition of SO2 to (di)vinylallenes. Org Lett 2006; 7:1565-8. [PMID: 15816753 DOI: 10.1021/ol050240p] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] The cheletropic addition of SO(2) to divinylallenes is regioselective, taking place at the most substituted vinylallene and at the E unit if vinyl groups of opposite geometry are competing. Diastereofacial differentiation results from the approach of the reagent from the less-substituted direction of the allene and from the concomitant disrotatory movement of the termini of the vinylallene to afford the sterically more congested 2-alkylidenesulfol-3-ene isomer. DFT computations confirm the regio- and the stereoselectivity of these cheletropic additions.
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Affiliation(s)
- José A Souto
- Departamento de Química Orgánica, Facultad de Química, Universidade de Vigo, 36310 Vigo, Spain
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Kan JTW, Toy PH. Sulfur- and selenium-based linkers in polymer-supported organic synthesis. J Sulphur Chem 2005. [DOI: 10.1080/0141160500371140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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McAllister LA, McCormick RA, Procter DJ. Sulfide- and selenide-based linkers in phase tag-assisted synthesis. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.08.056] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Gil C, Bräse S. Traceless and multifunctional linkers for the generation of small molecules on solid supports. Curr Opin Chem Biol 2005; 8:230-7. [PMID: 15183320 DOI: 10.1016/j.cbpa.2004.04.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Numerous developments in useful linkers are closely related with the advances in solid-phase organic synthesis. These linkers allow facile attachment functionalization and release molecules of interest. Designing a new anchoring group can be essential for synthesis success, especially for small molecules on solid supports. Many novel linkers have recently been developed. Traceless linkers can be excised efficiently and quantitatively when desired while leaving behind no trace of the solid-phase synthesis. However, multi-functional cleavage allows the introduction of new functionalities during cleavage from the resin.
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Affiliation(s)
- Carmen Gil
- Kekulé-Institut für Organische Chemie und Biochemie der Rheinischen, Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
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Berrisford DJ, Lovell PA, Suliman NR, Whiting A. Latent reactive groups unveiled through equilibrium dynamics and exemplified in crosslinking during film formation from aqueous polymer colloids. Chem Commun (Camb) 2005:5904-6. [PMID: 16317470 DOI: 10.1039/b512073j] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The concept of using equilibrium dynamics to provide for both protection and unveiling of latent functional groups at appropriate times in aqueous polymer colloid coatings designed for crosslinking only during film formation is introduced; the new functional monomer, 4-hydroxyethylsulfonylstyrene (HESS), readily undergoes emulsion copolymerization with acrylates to form stable latexes, followed by crosslinking by loss of water during film formation.
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Li W, Chen Y, Lam Y. A facile solid-phase synthesis of 3,4,6-trisubstituted-2-pyridones using sodium benzenesulfinate as a traceless linker. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.07.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Plażuk D, Rybarczyk-Pirek A, Zakrzewski J. β-Ferrocenyl-α,β-unsaturated phosphonates and sulfones. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2003.12.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Finikova OS, Cheprakov AV, Beletskaya IP, Carroll PJ, Vinogradov SA. Novel Versatile Synthesis of Substituted Tetrabenzoporphyrins. J Org Chem 2004; 69:522-35. [PMID: 14725469 DOI: 10.1021/jo0350054] [Citation(s) in RCA: 137] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel general synthetic route to tetraaryltetrabenzoporphyrins (Ar(4)TBP) with various peripheral functional groups is developed. The procedure includes (i) Barton-Zard condensation of 1-nitro- or 1-phenylsulfonylcyclohexenes with isocyanoacetic acid esters, (ii) condensation of the resulting 4,5,6,7-tetrahydroisoindoles with aromatic aldehydes to give fused tetraaryltetracylohexenoporphyrins (Ar(4)TCHP), and (iii) aromatization of the metal complexes of Ar(4)TCHP's into the corresponding Ar(4)TBP's. Cu and Zn complexes of Ar(4)TBP's are further demetalated to give the corresponding Ar(4)TBP free bases. The overall yields for the sequence range from 15% to 40%, making the method suitable for the preparation of gram quantities of Ar(4)TBP's in a single run. The scope of the method, the selection of the peripheral substituents, the choice of the metal ions, and their influence on the yields of aromatization are discussed. The basic spectroscopic properties of newly synthesized Ar(4)TBP's and Ar(4)TCHP's are reported together with the first X-ray crystallographic structure of the NiAr(4)TBP complex.
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Affiliation(s)
- Olga S Finikova
- Department of Chemistry, Moscow State University, 119899 Moscow, Russia
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Chen Y, Lam Y, Lai YH. Solid-phase synthesis of pyrazolines and isoxazolines with sodium benzenesulfinate as a traceless linker. Org Lett 2003; 5:1067-9. [PMID: 12659575 DOI: 10.1021/ol0340888] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] The preparation of pyrazoline and isoxazoline derivatives with traceless solid-phase sulfone linker strategy is described. Key steps involved in the solid-phase synthetic procedure include (i) sulfinate S-alkylation, (ii) sulfone anion alkylation, (iii) gamma-hydroxy sulfone --> gamma-ketosulfone oxidation, and (iv) traceless product release via elimination-cyclization. A library of 12 pyrazolines and isoxazolines was synthesized.
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Affiliation(s)
- Yu Chen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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Chen Y, Lam Y, Lai YH. Solid-phase synthesis of imidazo[1,2-a]pyridine using sodium benzenesulfinate as a traceless linker. Org Lett 2002; 4:3935-7. [PMID: 12599496 DOI: 10.1021/ol026797b] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[formula: see text] The preparation of the first library of imidazo[1,2-a]pyridine derivatives on a solid support is described. A sulfone linker strategy was applied in the synthesis. Key steps involved in the solid-phase synthetic procedure include (i) alpha-haloketone resin formation by sulfinate-->sulfone alkylation, (ii) imidazo[1,2-a]pyridine ring formation by treatment with 2-aminopyridine, (iii) sulfone anion alkylation, and (iv) traceless product release by oxidation-elimination. A library of 12 imidazo[1,2-a]pyridines was synthesized.
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Affiliation(s)
- Yu Chen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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Cheng WC, Wong M, Olmstead MM, Kurth MJ. Solid-phase synthesis of novel isoxazolocyclobutanones and isoxazolinocyclobutenones. Org Lett 2002; 4:741-4. [PMID: 11869116 DOI: 10.1021/ol017194n] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] The preparation of novel isoxazolocyclobutanone and isoxazolinocyclobutenone derivatives via a traceless solid-phase sulfone linker strategy is described. Key steps in the solid-phase protocol reported here include (i) sulfinate right arrow sulfone alkylation, (ii) four-member ring formation by sulfone dianion alkylation, (iii) heterocycle formation by nitrile oxide 1,3-dipolar cycloaddition, and (iv) traceless product release by cyclobutanol right arrow cyclobutanone oxidation with concomitant linker cleavage by sulfinate elimination.
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Affiliation(s)
- Wei-Chieh Cheng
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616-5295, USA
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