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Thangalipalli S, Goud Bandalla S, Kiran Neella C. N‐Iodo‐4‐N,N‐Dimethylaminopyridinium Iodide; A New Green Iodination Reagent for Regioselective Mono and Di Iodination of Phenols and Anilines in Water with Good E‐Factor. ChemistrySelect 2023. [DOI: 10.1002/slct.202204338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | - Siddarama Goud Bandalla
- Department of M. Sc. 5 Yr Integrated Chemistry Palamuru University 509001 Mahbubnagar Telangana India
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2
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Palav A, Misal B, Chaturbhuj G. NCBSI/KI: A Reagent System for Iodination of Aromatics through In Situ Generation of I-Cl. J Org Chem 2021; 86:12467-12474. [PMID: 34339212 DOI: 10.1021/acs.joc.1c01642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In situ iodine monochloride (I-Cl) generation followed by iodination of aromatics using NCBSI/KI system has been developed. The NCBSI reagent requires no activation due to longer bond length, lower bond dissociation energy, and higher absolute charge density on nitrogen. The system is adequate for mono- and diiodination of a wide range of moderate to highly activated arenes with good yield and purity. Moreover, the precursor N-(benzenesulfonyl)benzenesulfonamide can be recovered and transformed to NCBSI, making the protocol eco-friendly and cost-effective.
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Affiliation(s)
- Amey Palav
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai 400 019, India.,Loba Chemie Pvt. Ltd., Research, and Development Center, Tarapur, Thane 401 506, India
| | - Balu Misal
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai 400 019, India.,Loba Chemie Pvt. Ltd., Research, and Development Center, Tarapur, Thane 401 506, India
| | - Ganesh Chaturbhuj
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai 400 019, India
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3
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Sulfated polyborate-H2O assisted tunable activation of N-iodosuccinimide for expeditious mono and diiodination of arenes. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153154] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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4
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Abstract
![]()
This is the first
report on the synthesis and characterization
of N-iodo sulfoximines. The synthesis was designed
as a room temperature one-pot cascade reaction from readily available
sulfides as starting compounds, converted into sulfoximines by reaction
with ammonium carbonate and (diacetoxyiodo)benzene, followed by iodination
with N-iodosuccinimide or iodine in situ, in up to 90% isolated yields, also at a multigram scale. Iodination
of aryls with N-iodo sulfoximines, oxidation, and
conversion to N-SCF3 congeners have been
demonstrated.
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Affiliation(s)
- Anže Zupanc
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Marjan Jereb
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
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5
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Regioselective iodination of activated arenes using KI-DMSO in aqueous hydrochloride. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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6
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Satkar Y, Yera-Ledesma LF, Mali N, Patil D, Navarro-Santos P, Segura-Quezada LA, Ramírez-Morales PI, Solorio-Alvarado CR. Iodine(III)-Mediated, Controlled Di- or Monoiodination of Phenols. J Org Chem 2019; 84:4149-4164. [PMID: 30888169 DOI: 10.1021/acs.joc.9b00161] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An oxidative procedure for the electrophilic iodination of phenols was developed by using iodosylbenzene as a nontoxic iodine(III)-based oxidant and ammonium iodide as a cheap iodine atom source. A totally controlled monoiodination was achieved by buffering the reaction medium with K3PO4. This protocol proceeds with short reaction times, at mild temperatures, in an open flask, and generally with high yields. Gram-scale reactions, as well as the scope of this protocol, were explored with electron-rich and electron-poor phenols as well as heterocycles. Quantum chemistry calculations revealed PhII(OH)·NH3 to be the most plausible iodinating active species as a reactive "I+" synthon. In light of the relevance of the iodoarene moiety, we present herein a practical, efficient, and simple procedure with a broad functional group scope that allows access to the iodoarene core unit.
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Affiliation(s)
- Yuvraj Satkar
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Luisa F Yera-Ledesma
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Narendra Mali
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Dipak Patil
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Pedro Navarro-Santos
- Universidad Michoacana de San Nicolás de Hidalgo , Instituto de Ciencias Químico Biológicas , Av. Universidad S/N , 58000 , Morelia , Michoacán , México
| | - Luis A Segura-Quezada
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Perla I Ramírez-Morales
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - César R Solorio-Alvarado
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
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7
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Sdahl M, Conrad J, Braunberger C, Beifuss U. Efficient and sustainable laccase-catalyzed iodination ofp-substituted phenols using KI as iodine source and aerial O2as oxidant. RSC Adv 2019; 9:19549-19559. [PMID: 35519358 PMCID: PMC9065379 DOI: 10.1039/c9ra02541c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 05/27/2019] [Indexed: 11/26/2022] Open
Abstract
The laccase-catalyzed iodination of p-hydroxyarylcarbonyl- and p-hydroxyarylcarboxylic acid derivatives using KI as iodine source and aerial oxygen as the oxidant delivers the corresponding iodophenols in a highly efficient and sustainable manner with yields up to 93% on a preparative scale under mild reaction conditions. A new and sustainable laccase-catalyzed iodination of p-substituted phenols using KI as iodine source and aerial O2 as oxidant has been developed.![]()
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Affiliation(s)
- Mark Sdahl
- Bioorganische Chemie
- Institut für Chemie
- Universität Hohenheim
- Stuttgart
- Germany
| | - Jürgen Conrad
- Bioorganische Chemie
- Institut für Chemie
- Universität Hohenheim
- Stuttgart
- Germany
| | | | - Uwe Beifuss
- Bioorganische Chemie
- Institut für Chemie
- Universität Hohenheim
- Stuttgart
- Germany
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8
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Synthesis, leishmanicidal activity, structural descriptors and structure-activity relationship of quinoline derivatives. Future Med Chem 2018; 10:2069-2085. [PMID: 30066582 DOI: 10.4155/fmc-2018-0124] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
AIM Considering the epidemiology of leishmaniasis, the emergence of resistant parasites to the approved drugs, and severe clinical manifestations, the development of novel leishmanicidal molecules has become of considerable importance. RESULTS In this work, three commercially available and 19 synthesized quinoline derivatives were evaluated against promastigote and amastigote forms of Leishmania (Leishmania) amazonensis. In addition, structural parameters and molecular electrostatic potentials were obtained by theoretical calculations, allowing statistical (principal component analyses and hierarchical cluster analyses) and comparative (molecular electrostatic potentials vs leishmanicidal activities) studies, respectively. CONCLUSION Principal component analyses and hierarchical cluster analyses suggested volume and polar surface area as possible structural descriptors for the leishmanicidal activity. Furthermore, a comparison between molecular electrostatic potentials and leishmanicidal activities afforded a reasonable structure-activity relationship.
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9
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Horibe T, Tsuji Y, Ishihara K. Thiourea–I2 as Lewis Base–Lewis Acid Cooperative Catalysts for Iodochlorination of Alkene with In Situ-Generated I–Cl. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01565] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takahiro Horibe
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Yasutaka Tsuji
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
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10
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Liu J, Yang S, Dong R, Jin Z, Wang M. A Convenient One-Pot Synthesis of 1-Aryl-Substituted 4-Iodopyrazol-3-Ols via Aromatisation and Oxidative Iodination Reactions. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15161933697808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A convenient and economical one-pot synthesis of a series of new 1-aryl-substituted 4-iodopyrazole-3-ols from easily available pyrazolidin-3-ones in the presence of sodium iodide, 30% solution of hydrogen peroxide and a catalytic amount of sulfuric acid in dichloromethane via aromatisation and oxidative iodination reactions are described. This protocol has the advantages of high atom economy, cost-effectiveness, short reaction time and environmental friendliness.
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Affiliation(s)
- Jingjing Liu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P.R. China
| | - Shanguang Yang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P.R. China
| | - Ruimei Dong
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P.R. China
| | - Zhudan Jin
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P.R. China
| | - Mingliang Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P.R. China
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11
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Patil AM, Kamble DA, Lokhande PD. A Metal-Free Iodination of Aryl Ethers and Phenols Using I2. ChemistrySelect 2017. [DOI: 10.1002/slct.201701645] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Avinash M. Patil
- Center for Advance Studies; Department of Chemistry; Savitribai Phule Pune University (Formerly University of Pune); Pune-411007 India
| | - Dayanand A. Kamble
- Center for Advance Studies; Department of Chemistry; Savitribai Phule Pune University (Formerly University of Pune); Pune-411007 India
| | - Pradeep D. Lokhande
- Center for Advance Studies; Department of Chemistry; Savitribai Phule Pune University (Formerly University of Pune); Pune-411007 India
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12
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Ingale SA, Leonard P, Yang H, Seela F. 5-Nitroindole oligonucleotides with alkynyl side chains: universal base pairing, triple bond hydration and properties of pyrene "click" adducts. Org Biomol Chem 2015; 12:8519-32. [PMID: 25236942 DOI: 10.1039/c4ob01478b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Oligonucleotides with 3-ethynyl-5-nitroindole and 3-octadiynyl-5-nitroindole 2'-deoxyribonucleosides were prepared by solid-phase synthesis. To this end, nucleoside phosphoramidites with clickable side chains were synthesized. The 3-ethynylated 5-nitroindole nucleoside was hydrated during automatized DNA synthesis to 3-acetyl-5-nitroindole 2'-deoxyribonucleoside. Side product formation was circumvented by triisopropylsilyl protection of the ethynyl side chain and was removed with TBAF after oligonucleotide synthesis. All compounds with a clickable 5-nitroindole skeleton show universal base pairing and can be functionalized with almost any azide in any position of the DNA chain. Functionalization of the side chain with 1-azidomethylpyrene afforded click adducts in which the fluorescence was quenched by the 5-nitroindole moieties. However, fluorescence was slightly recovered during duplex formation. Oligonucleotides with a pyrene residue and a long linker arm are stabilized over those with non-functionalized side chains. From the UV red shift of the pyrene residue in oligonucleotides and modelling studies, pyrene intercalation was established for the long linker adduct showing increased duplex stability over those with a short side chain.
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Affiliation(s)
- Sachin A Ingale
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
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13
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Deshmukh A, Gore B, Thulasiram HV, Swamy VP. Recyclable ionic liquid iodinating reagent for solvent free, regioselective iodination of activated aromatic and heteroaromatic amines. RSC Adv 2015. [DOI: 10.1039/c5ra14702f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This article describes a simple, efficient method for iodination of activated aromatic/heteroaromatic amines using BMPDCI as a recyclable ionic liquid iodinating reagent, in the absence of any solvent, base/toxic heavy metals, or oxidizing agents.
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Affiliation(s)
- Amarsinh Deshmukh
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - Babasaheb Gore
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | | | - Vincent P. Swamy
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
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14
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Limpachayaporn P, Wagner S, Kopka K, Schober O, Schäfers M, Haufe G. Synthesis of 7-Halogenated Isatin Sulfonamides: Nonradioactive Counterparts of Caspase-3/-7 Inhibitor-Based Potential Radiopharmaceuticals for Molecular Imaging of Apoptosis. J Med Chem 2014; 57:9383-95. [DOI: 10.1021/jm500718e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Panupun Limpachayaporn
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße
40, D-48149 Münster, Germany
- International
NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, D-48149 Münster, Germany
| | - Stefan Wagner
- Klinik
für Nuklearmedizin, Universitätsklinikum Münster, Albert-Schweitzer-Campus
1, Gebäude A1, D-48149 Münster, Germany
| | - Klaus Kopka
- Klinik
für Nuklearmedizin, Universitätsklinikum Münster, Albert-Schweitzer-Campus
1, Gebäude A1, D-48149 Münster, Germany
| | - Otmar Schober
- Klinik
für Nuklearmedizin, Universitätsklinikum Münster, Albert-Schweitzer-Campus
1, Gebäude A1, D-48149 Münster, Germany
- Cells-in-Motion
Cluster of Excellence, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, D-48149 Münster, Germany
| | - Michael Schäfers
- Klinik
für Nuklearmedizin, Universitätsklinikum Münster, Albert-Schweitzer-Campus
1, Gebäude A1, D-48149 Münster, Germany
- European
Institute for Molecular Imaging, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, D-48149 Münster, Germany
- Cells-in-Motion
Cluster of Excellence, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, D-48149 Münster, Germany
| | - Günter Haufe
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße
40, D-48149 Münster, Germany
- European
Institute for Molecular Imaging, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, D-48149 Münster, Germany
- Cells-in-Motion
Cluster of Excellence, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, D-48149 Münster, Germany
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15
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Pezzella A, Crescenzi O, Panzella L, Napolitano A, Land EJ, Barone V, d’Ischia M. Free Radical Coupling of o-Semiquinones Uncovered. J Am Chem Soc 2013; 135:12142-9. [DOI: 10.1021/ja4067332] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alessandro Pezzella
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126
Naples, Italy
| | - Orlando Crescenzi
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126
Naples, Italy
| | - Lucia Panzella
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126
Naples, Italy
| | - Alessandra Napolitano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126
Naples, Italy
| | - Edward J. Land
- STFC Daresbury Laboratory, Daresbury, WA4 4AD, United
Kingdom
- Chemistry Section,
School of Physical and Geographical Sciences, Keele University, Staffs ST5 5BG, United Kingdom
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri
7, I-56126 Pisa, Italy
| | - Marco d’Ischia
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126
Naples, Italy
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16
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17
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Hamri S, Rodríguez J, Basset J, Guillaumet G, Dolors Pujol M. A convenient iodination of indoles and derivatives. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.05.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Beale TM, Allwood DM, Bender A, Bond PJ, Brenton JD, Charnock-Jones DS, Ley SV, Myers RM, Shearman JW, Temple J, Unger J, Watts CA, Xian J. A-ring dihalogenation increases the cellular activity of combretastatin-templated tetrazoles. ACS Med Chem Lett 2012; 3:177-81. [PMID: 24900453 DOI: 10.1021/ml200149g] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 01/19/2012] [Indexed: 11/28/2022] Open
Abstract
The combretastatins have been investigated for their antimitotic and antivascular properties, and it is widely postulated that a 3,4,5-trimethoxyaryl A-ring is essential to maintain potent activity. We have synthesized new tetrazole analogues (32-34), demonstrating that 3,5-dihalogenation can consistently increase potency by up to 5-fold when compared to the equivalent trimethoxy compound on human umbilical vein endothelial cells (HUVECs) and a range of cancer cells. Moreover, this increased potency offsets that lost by installing the tetrazole bridge into combretastatin A-4 (1), giving crystalline, soluble compounds that have low nanomolar activity, arrest cells in G2/M phase, and retain microtubule inhibitory activity. Molecular modeling has shown that optimized packing within the binding site resulting in increased Coulombic interaction may be responsible for this improved activity.
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Affiliation(s)
- Thomas M. Beale
- Department of Chemistry, Lensfield
Road, University of Cambridge, Cambridge
CB2 1EW, U.K
| | - Daniel M. Allwood
- Department of Chemistry, Lensfield
Road, University of Cambridge, Cambridge
CB2 1EW, U.K
| | - Andreas Bender
- Unilever
Centre for Molecular
Science Informatics, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Peter J. Bond
- Unilever
Centre for Molecular
Science Informatics, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, U.K
| | - James D. Brenton
- Functional Genomics of Ovarian
Cancer Laboratory, Cancer Research U.K., Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge
CB2 0RE, U.K
| | - D. Stephen Charnock-Jones
- Department
of Obstetrics and
Gynaecology, University of Cambridge, and
National Institute for Health Research, Cambridge Comprehensive Biomedical
Research Centre, Cambridge CB2 0SW, U.K
| | - Steven V. Ley
- Department of Chemistry, Lensfield
Road, University of Cambridge, Cambridge
CB2 1EW, U.K
| | - Rebecca M. Myers
- Department of Chemistry, Lensfield
Road, University of Cambridge, Cambridge
CB2 1EW, U.K
| | - James W. Shearman
- Department of Chemistry, Lensfield
Road, University of Cambridge, Cambridge
CB2 1EW, U.K
| | - Jill Temple
- Functional Genomics of Ovarian
Cancer Laboratory, Cancer Research U.K., Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge
CB2 0RE, U.K
| | - Jessica Unger
- Functional Genomics of Ovarian
Cancer Laboratory, Cancer Research U.K., Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge
CB2 0RE, U.K
| | - Ciorsdaidh A. Watts
- Department of Chemistry, Lensfield
Road, University of Cambridge, Cambridge
CB2 1EW, U.K
| | - Jian Xian
- Functional Genomics of Ovarian
Cancer Laboratory, Cancer Research U.K., Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge
CB2 0RE, U.K
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19
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Increased endothelial cell selectivity of triazole-bridged dihalogenated A-ring analogues of combretastatin A–1. Bioorg Med Chem 2012; 20:1749-59. [DOI: 10.1016/j.bmc.2012.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 01/03/2012] [Accepted: 01/05/2012] [Indexed: 11/22/2022]
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20
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Albadi J, Abedini M, Iravani N. Regioselective iodination of aromatic compounds with potassium iodide in the presence of benzyltriphenylphosphonium perchlorate. CHINESE CHEM LETT 2012. [DOI: 10.1016/j.cclet.2011.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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d'Ischia M, Napolitano A, Pezzella A. 5,6‐Dihydroxyindole Chemistry: Unexplored Opportunities Beyond Eumelanin. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100796] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marco d'Ischia
- Department of Organic Chemistry and Biochemistry, University of Naples “Federico II”, Via Cintia 4, 80126 Naples, Italy
| | - Alessandra Napolitano
- Department of Organic Chemistry and Biochemistry, University of Naples “Federico II”, Via Cintia 4, 80126 Naples, Italy
| | - Alessandro Pezzella
- Department of Organic Chemistry and Biochemistry, University of Naples “Federico II”, Via Cintia 4, 80126 Naples, Italy
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22
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A simple method for iodination of heterocyclic compounds using HIO4/NaCl/silica gel/H2SO4 in water. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-011-0611-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Li L, Li Y, Li R, Zhu A, Zhang G. A New Synthetic Protocol for One-Pot Preparations of 5-Halo-1,4-disubstituted-1,2,3-triazoles. Aust J Chem 2011. [DOI: 10.1071/ch11067] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this paper, a new synthetic protocol for one-pot preparations of 5-halo-1,4-disubstituted-1,2,3-triazoles is provided by rational combination of a CuI catalyzed azide–alkyne cycloaddition (CuAAC) reaction and an oxidative halogenation reaction. CuI- N-chlorosuccinimide (NCS) and CuBr-NCS reaction systems are developed, respectively, for effective preparations of 5-iodo-1,4-disubstituted-1,2,3-triazoles and 5-bromo-1,4-disubstituted-1,2,3-trizoles under mild conditions with a high tolerance of various sensitive groups.
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Fehér C, Urbán B, Ürge L, Darvas F, Bakos J, Skoda-Földes R. Facile synthesis of 6-iodo-2,2′-dipivaloyloxy-1,1′-binaphthyl, a key intermediate of high reactivity for selective palladium-catalyzed monofunctionalization of the 1,1′-binaphthalene core. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.05.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhou CY, Li J, Peddibhotla S, Romo D. Mild Arming and Derivatization of Natural Products via an In(OTf)3-Catalyzed Arene Iodination. Org Lett 2010; 12:2104-7. [DOI: 10.1021/ol100587j] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cong-Ying Zhou
- Department of Chemistry, P.O. Box 30012, Texas A&M University, College Station, Texas 77842-3012
| | - Jing Li
- Department of Chemistry, P.O. Box 30012, Texas A&M University, College Station, Texas 77842-3012
| | | | - Daniel Romo
- Department of Chemistry, P.O. Box 30012, Texas A&M University, College Station, Texas 77842-3012
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Zolfigol M, Khazaei A, Kolvari E, Koukabi N, Soltani H, Behjunia M. H5IO6/KI: A New Combination Reagent for Iodination of Aromatic Amines, and Trimethylsilylation of Alcohols and Phenols throughin situGeneration of Iodine under Mild Conditions. Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900259] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Sundberg RJ. Electrophilic Substitution Reactions of Indoles. TOPICS IN HETEROCYCLIC CHEMISTRY 2010. [DOI: 10.1007/7081_2010_52] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Batail N, Bendjeriou A, Lomberget T, Barret R, Dufaud V, Djakovitch L. First Heterogeneous Ligand- and Salt-Free Larock Indole Synthesis. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900386] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Capelli L, Manini P, Pezzella A, Napolitano A, d’Ischia M. Efficient Synthesis of 5,6-Dihydroxyindole Dimers, Key Eumelanin Building Blocks, by a Unified o-Ethynylaniline-Based Strategy for the Construction of 2-Linked Biindolyl Scaffolds. J Org Chem 2009; 74:7191-4. [DOI: 10.1021/jo901259s] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Luigia Capelli
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Naples, Italy
| | - Paola Manini
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Naples, Italy
| | - Alessandro Pezzella
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Naples, Italy
| | - Alessandra Napolitano
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Naples, Italy
| | - Marco d’Ischia
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Naples, Italy
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Regioselective iodination of phenol and analogues using N-iodosuccinimide and p-toluenesulfonic acid. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.128] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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