1
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Jayarani A, Deepa M, Khan HA, Koothradan FF, Yoganandhini S, Sreelakshmi V, Sivasankar C. Ruthenium-Catalyzed Chemo-Selective Carbene Insertion into C-H Bond of Styrene over Cyclopropanation: C-C Bond Formation. J Org Chem 2023; 88:15817-15831. [PMID: 37934176 DOI: 10.1021/acs.joc.3c01881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
The C-C bond formation reactions are important in organic synthesis. Heck reaction is known to arylate the terminal carbon of olefins; however, direct alkylation of the terminal carbon of olefin is limited. Herein, we report a novel ruthenium-catalyzed selective cross-coupling reaction of styrene and α-diazoesters to form a new C-C bond over cyclopropanation via the C-H insertion process for the first time. Using this novel methodology, a wide variety of substrates have been utilized and a variety of α-vinylated benzylic esters and densely functionalized olefins have been synthesized with good stereoselectivity under mild reaction conditions. The overall reaction process proceeds through the carbene insertion into styrene to form the desired products in good to excellent yields with proper stereoselectivity. The selective C-H inserted product, wide substrate scope, and excellent functional group tolerance are the best features of this work.
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Affiliation(s)
- Arumugam Jayarani
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry, Puducherry 605014, India
| | - Masilamani Deepa
- Postgraduate and Research Department of Chemistry, Muthurangam Government Arts College, Vellore, Tamil Nadu 632002, India
| | - Hilal Ahmad Khan
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry, Puducherry 605014, India
| | - Fathima Febin Koothradan
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry, Puducherry 605014, India
| | - Sekar Yoganandhini
- Postgraduate and Research Department of Chemistry, Muthurangam Government Arts College, Vellore, Tamil Nadu 632002, India
| | - Vinod Sreelakshmi
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry, Puducherry 605014, India
| | - Chinnappan Sivasankar
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry, Puducherry 605014, India
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2
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Subbi Reddy M, Nanubolu JB, Suresh S. Design and development of intramolecular doubly vinylogous Michael addition to access 3-aryl substituted 2-alkenyl-benzofurans and -indoles. Org Biomol Chem 2023. [PMID: 37326590 DOI: 10.1039/d3ob00861d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Herein, we have disclosed a rare example of an intramolecular doubly vinylogous Michael addition (DVMA). The reaction design exploits the innate reactivity of ortho-heteroatom substituted para-quinone methide (p-QM) derivatives. The sequential reaction of p-QMs and activated allyl halides proceeds through heteroatom-allylation, DVMA and oxidation to furnish a diverse range of 2-alkenyl benzofuran and 2-alkenyl indole derivatives in high yields.
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Affiliation(s)
- Manyam Subbi Reddy
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jagadeesh Babu Nanubolu
- Laboratory of X-Ray Crystallography, Department of Analytical Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - Surisetti Suresh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Liu B, Deng Q, Zhang L, Yu A, Meng X. Switchable C2/C3 positional selectivity of thioisatins in a three-component domino reaction: combined computational and experimental studies. Org Biomol Chem 2022; 20:9639-9644. [PMID: 36411991 DOI: 10.1039/d2ob01764d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The nucleophile-induced domino reaction is a featured reactivity mode of thioisatin, but the C2/C3 positional selectivity towards a nucleophile has not been understood in-depth. In this work, a domino reaction of thioisatin with bromoacetophenone and tryptamine hydrochloride to produce a benzothiophene-fused eight-membered N-heterocycle was described, showing that the Brønsted acid-base form of the amine partner was crucial for the selectivity, because using tryptamine instead of tryptamine hydrochloride gave a different product. Control experiments and density functional calculations revealed that the domino reaction using tryptamine or tryptamine hydrochloride was triggered by a condensation reaction at the C2 or C3 position of thioisatin, respectively. A delicate balance between local electrophilicity and polarization effect may be responsible for the observed selectivity.
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Affiliation(s)
- Baolin Liu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China.
| | - Qingsong Deng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China.
| | - Lei Zhang
- Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, School of Science Tianjin Chengjian University, Tianjin 300384, P.R. China.
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China.
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China.
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4
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Efficient Synthesis of 3-Sulfonyl-2-sulfonylmethyl-2H-chromenes via Tandem Knoevenagel Condensation/Oxa-Michael Addition Protocol. Catalysts 2022. [DOI: 10.3390/catal12050491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
An organocatalytic [4 + 2] cascade annulation of salicylaldehydes and 1,3-bisarylsulfonylpropenes has been developed. This protocol enables the efficient and straightforward synthesis of a new series of 3-sulfonyl-2-sulfonylmethyl-2H-chromenes that are useful for exploring pharmacologically valued compounds. Further reductive modifications result in 3-desulfonylated chromene or chromane derivatives. This protocol can be expanded to the synthesis of 3-sulfonyl-2-sulfonylmethyl 1,2-dihydroquinoline.
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5
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Tian X, Zhang Y, Ren W, Wang Y. Synthesis of functionalized 3,2′-pyrrolidinyl spirooxindoles via domino 1,6-addition/annulation reactions of para-quinone methides and 3-chlorooxindoles. Org Chem Front 2022. [DOI: 10.1039/d1qo01605a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A highly efficient diastereoselective [4 + 1] cycloaddition of ortho-tosylaminophenyl-substituted p-QMs with 3-chlorooxindoles has been developed to afford 3,2′-pyrrolidinyl spirooxindoles.
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Affiliation(s)
- Xiaochen Tian
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yongxing Zhang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Weiwu Ren
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
| | - Yang Wang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
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6
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Seidel D, Chen W. Condensation-Based Methods for the C–H Bond Functionalization of Amines. SYNTHESIS-STUTTGART 2021; 53:3869-3908. [DOI: 10.1055/a-1631-2140] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AbstractThis review aims to provide a comprehensive overview of condensation-based methods for the C–H bond functionalization of amines that feature azomethine ylides as key intermediates. These transformations are typically redox-neutral and share common attributes with classic name reactions such as the Strecker, Mannich, Friedel–Crafts, Pictet–Spengler, and Kabachnik–Fields reactions, while incorporating a redox-isomerization step. This approach provides an ideal platform to rapidly transform simple starting materials into complex amines.1 Introduction1.1 General Remarks1.2 Overview1.3 Scope of This Review2 Aromatization of Cyclic Amines2.1 Pyridines from Piperidine2.2 Isoquinolines from Tetrahydroisoquinolines and Quinolines from Tetrahydroquinolines2.3 Pyrroles from 3-Pyrroline or Pyrrolidine2.4 Indoles from Indolines3 Pericyclic Reactions3.1 (3+2)-Dipolar Cycloadditions3.2 6π-Electrocyclizations3.3 1,5-Proton Shifts4 Redox-Variants of Classic Transformations Incorporating a C–H Bond Functionalization Step4.1 α-Cyanation4.2 α-Alkynylation4.3 α-Phosphonation4.4 α-Arylation4.5 α-Alkylation with Ketones4.6 Redox-Ugi Reaction4.7 Miscellaneous Intermolecular Reactions5 Redox-Annulations6 Reactions Involving β-C–H Bond Functionalization7 Outlook
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Affiliation(s)
- Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida
| | - Weijie Chen
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida
- School of Chemical Science and Engineering, Institute for Advanced Study, Tongji University
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7
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Mandal S, Gupta RK, Pathak SK, Rao DSS, Prasad SK, Ammathnadu Sudhakar A, Jana CK. Metal-free C–H functionalization of pyrrolidine to pyrrolinium-based room temperature ionic liquid crystals. NEW J CHEM 2021. [DOI: 10.1039/d1nj00647a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
C–H functionalization of pyrrolidine-enabled synthesis of a new class of ionic liquid crystals
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Affiliation(s)
- Sumana Mandal
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | | | - Suraj Kumar Pathak
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | | | | | | | - Chandan K. Jana
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
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8
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Abstract
This review summaries recent synthetic developments towards spirocyclic oxindoles and applications as valuable medicinal and synthetic targets.
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Affiliation(s)
- Alexander J. Boddy
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - James A. Bull
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
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9
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Fang H, Han Y, Sun J, Yan C. Domino β‐C−H Functionalization and [3+2] Cycloaddition for Efficient Synthesis of Diverse Spiro and Polycyclic Compounds. ChemistrySelect 2020. [DOI: 10.1002/slct.202003342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hui‐Lin Fang
- School of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 China
| | - Ying Han
- School of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 China
| | - Jing Sun
- School of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 China
| | - Chao‐Guo Yan
- School of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 China
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10
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Selvaraj JP, Mary S, Dhruba JB, Huidrom BS, Panneerselvam Y, Piskala Subburaman K. Crystal structure of (1' S,2' S,3 S)-1'-benzoyl-2'-(4-meth-oxy-phen-yl)-1-methyl-2',5',6',10b'-tetra-hydro-1' H-spiro-[indoline-3,3'-pyrrolo-[2,1- a]isoquinolin]-2-one. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2020; 76:1548-1550. [PMID: 33117561 PMCID: PMC7534224 DOI: 10.1107/s2056989020010300] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/24/2020] [Indexed: 12/03/2022]
Abstract
The synthesis and crystal structure of the spiro title compound is presented. In the title spiro compound, C34H30N2O3, the central pyrrolidine ring is fused with the tetrahydroisoquinoline ring, both having distorted envelope conformations, with the flap atoms being C and N, respectively. The methoxyphenyl group is attached to the pyrrolidine ring, and is disordered over two positions, with refined occupancies of 0.638 (6):0.362 (6) Å. The central pyrrolidine ring is inclined relative to the tetrahydroisoquinoline group, such that the dihedral between the non-flap atoms of each ring system is 11.29 (7)°. The spiro-linkage creates a dihedral angle of 83.26 (5)° between the indolinone ring and the non-flap atoms of the pyrrolidine ring. In the crystal, molecules are linked via C—H⋯O hydrogen bonds. For the major disorder component, these form C(11) chains that propagate parallel to the a axis.
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Affiliation(s)
| | - Stella Mary
- Department of Physics, St.Peter's University, Avadi, Chennai-600054, Tamilnadu, India
| | - Jyoti Boruah Dhruba
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, India
| | - Birkumar Singh Huidrom
- CSIR-North East Institute of Science and Technology (NEIST), Branch Laboratory, Lamphepat-795004, Imphal, Manipur, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, India
| | - Yuvaraj Panneerselvam
- CSIR-North East Institute of Science and Technology (NEIST), Branch Laboratory, Lamphepat-795004, Imphal, Manipur, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, India
| | - Kannan Piskala Subburaman
- Department of Physics, Kings Engineering College, Irungattukottai, Sriperumbudur, Chennai-602117, Tamilnadu, India
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11
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Roy SK, Purkait A, Aziz SMT, Jana CK. Acid mediated coupling of aliphatic amines and nitrosoarenes to indoles. Chem Commun (Camb) 2020; 56:3167-3170. [PMID: 32065174 DOI: 10.1039/c9cc09616g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Traditionally, amines react with nitrosoarenes to provide the corresponding imines or azo compounds. Herein, we report an acid mediated annulation reaction of aliphatic amines and nitrosoarenes to provide indole derivatives. The elusive direct annulation of aliphatic amines and nitrosoarenes via simultaneous C-C and C-N bond formation was achieved under metal free conditions. This conceptually novel method for indole synthesis does not require pre-functionalization steps for the new C-C and C-N bond formation. The method has been applied for an elegant synthesis of nor-neocryptolepine and neocryptolepine.
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12
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Huang Y, Fang HL, Huang YX, Sun J, Yan CG. Synthesis of 7'-Arylidenespiro[indoline-3,1'-pyrrolizines] and 7'-Arylidenespiro[indene-2,1'-pyrrolizines] via [3 + 2] Cycloaddition and β-C-H Functionalized Pyrrolidine. J Org Chem 2019; 84:12437-12451. [PMID: 31498623 DOI: 10.1021/acs.joc.9b01920] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The acetic acid catalyzed three-component reaction of pyrrolidine, aromatic aldehydes, and 3-arylideneoxindolin-2-ones in refluxing toluene afforded functionalized 7'-arylidenespiro[indoline-3,1'-pyrrolizines] in good yields and with high diastereoselectivity. The similar three-component reaction with 2-arylidene-1,3-indanediones also gave 7'-arylidenespiro[indene-2,1'-pyrrolizines] in good yields. However, the reaction with 3-phenacylideneoxindoles resulted in a mixture of spiro[indoline-3,1'-pyrrolizines] and 7'-arylidene-substituted spirooxindoles in moderate yields. The reaction mechanism included generation of azomethine ylides, β-C-H functionalization of pyrrolidine, and sequential [3 + 2] cycloaddition. The obtained spirooxindole derivatives were investigated by in vitro evaluation against mouse colon cancer cells CT26 and human liver cancer cells HepG2 by MTT assay.
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Affiliation(s)
- Ying Huang
- College of Chemistry & Chemical Engineering , Yangzhou University , Yangzhou 225002 , China.,Institute of Translational Medicine, Medical College , Yangzhou University , Yangzhou 225009 , China
| | - Hui-Lin Fang
- College of Chemistry & Chemical Engineering , Yangzhou University , Yangzhou 225002 , China
| | - Yi-Xin Huang
- Institute of Translational Medicine, Medical College , Yangzhou University , Yangzhou 225009 , China
| | - Jing Sun
- College of Chemistry & Chemical Engineering , Yangzhou University , Yangzhou 225002 , China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering , Yangzhou University , Yangzhou 225002 , China
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13
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Haldar S, Jana CK. Direct (het)arylation of tetrahydroisoquinolines via a metal and oxidant free C(sp 3)-H functionalization enabled three component reaction. Org Biomol Chem 2019; 17:1800-1804. [PMID: 30516776 DOI: 10.1039/c8ob02309c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented method for the direct arylation and heteroarylation of tetrahydroisoquinolines under metal and oxidant free conditions is reported. The arylation reactions occurred via a C(sp3)-H functionalization enabled three component condensation of tetrahydroisoquinolines, 9-fluorenone imine, and arenes without involving a pre-functionalization/pre-derivatization step. A wide range of arenes and heteroarenes participated in the reaction to provide structurally diverse arylated tetrahydroisoquinolines with good to excellent yields.
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Affiliation(s)
- Surajit Haldar
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, India.
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14
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Tang XZ, Liang J, Zhang XJ, Sun RWY, Yan M, Chan ASC. Synthesis of multisubstituted arylsulfones via a one-pot, three-component [3 + 3] benzannulation reaction. Org Biomol Chem 2019; 17:4753-4760. [DOI: 10.1039/c9ob00394k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A one-pot, three-component [3 + 3] benzannulation reaction of α,β-unsaturated carbonyl compounds, bromoallylic sulfones, and sodium sulfinates provided multisubstituted arylsulfones with moderate to good yields.
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Affiliation(s)
- Xiang-Zheng Tang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Jie Liang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Xue-Jing Zhang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | | | - Ming Yan
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Albert S. C. Chan
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
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15
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Mandal S, Dwari S, Jana CK. Metal Free C–H Functionalization Enabled Diastereoselective Multicomponent Reaction of N-Heterocycles to Fused Heteropolycycles. J Org Chem 2018; 83:8874-8887. [PMID: 30025457 DOI: 10.1021/acs.joc.8b01105] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sumana Mandal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, India 781039
| | - Soumita Dwari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, India 781039
| | - Chandan K. Jana
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, India 781039
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16
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Abstract
Amines such as 1,2,3,4-tetrahydroisoquinoline undergo redox-neutral annulations with 2-(2-oxoethyl)malonates in the presence of catalytic amounts of benzoic acid. These reactions install a fully saturated five-membered ring and provide access to structures closely related to the natural products crispine A and harmicine.
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Affiliation(s)
- Zhengbo Zhu
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Hemant S. Chandak
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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17
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Yadav A, Banerjee J, Arupula SK, Mobin SM, Samanta S. Lewis-Base-Catalyzed Domino Reaction of Morita-Baylis-Hillman Carbonates of Isatins with Enolizable Cyclic Carbonyl Compounds: Stereoselective Access to Spirooxindole-Pyrans. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800240] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Anubha Yadav
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
| | - Joyanta Banerjee
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
| | - Sanjeeva K. Arupula
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
| | - Shaikh M. Mobin
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
| | - Sampak Samanta
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
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18
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Shen J, Yang Y, Hou X, Zeng W, Yu A, Zhao X, Meng X. Darzens reaction of thioisatins and sulfonium salts: approach to the synthesis of thiochromenone derivatives with anticancer potency. Org Biomol Chem 2018; 16:3487-3494. [PMID: 29691546 DOI: 10.1039/c8ob00402a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Darzens reaction of thioisatins and sulfonium salts has, for the first time, been reported. This reaction allows efficient access to thiochromenone derivatives in good to excellent yields under mild reaction conditions. The substrate scope includes both electron-withdrawing and electron-donating groups on both the thioisatins and sulfonium salts. Moreover, some of the synthesized thiochromenone derivatives have been found to show potent anticancer activities against six different cancer cell lines using the methylthiazoltetrazolium (MTT) assay.
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Affiliation(s)
- Jinhui Shen
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China.
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19
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Arupula SK, Guin S, Yadav A, Mobin SM, Samanta S. Stereoselective Synthesis of 3,3-Disubstituted Oxindoles and Spirooxindoles via Allylic Alkylation of Morita–Baylis–Hillman Carbonates of Isatins with Cyclic Sulfamidate Imines Catalyzed by DABCO. J Org Chem 2018; 83:2660-2675. [DOI: 10.1021/acs.joc.7b03090] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sanjeeva K. Arupula
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore-453552, Madhya Pradesh, India
| | - Soumitra Guin
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore-453552, Madhya Pradesh, India
| | - Anubha Yadav
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore-453552, Madhya Pradesh, India
| | - Shaikh M. Mobin
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore-453552, Madhya Pradesh, India
| | - Sampak Samanta
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore-453552, Madhya Pradesh, India
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20
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Ma S, Yu A, Meng X. Phosphine-catalyzed [4 + 2] annulation of γ-benzyl allenoates: facile synthesis of benzothieno[3,2-b]pyran derivatives. Org Biomol Chem 2018; 16:2885-2892. [DOI: 10.1039/c8ob00004b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An efficient tris(4-methoxyphenyl)phosphane catalyzed domino reaction between γ-benzyl allenoate and ethyl (Z)-2-(3-oxobenzo[b]thiophen-2(3H)-ylidene)acetate has been developed, which produces a series of 2H-benzo[4,5]thieno[3,2-b]pyran derivatives in high yields.
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Affiliation(s)
- Shanshan Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
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21
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Zhu Z, Lv X, Anesini JE, Seidel D. Synthesis of Polycyclic Imidazolidinones via Amine Redox-Annulation. Org Lett 2017; 19:6424-6427. [PMID: 29144764 PMCID: PMC5715285 DOI: 10.1021/acs.orglett.7b03309] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Indexed: 11/30/2022]
Abstract
α-Ketoamides undergo redox-annulations with cyclic secondary amines, such as 1,2,3,4-tetrahydroisoquinoline, pyrrolidine, piperidine, and morpholine. Catalytic amounts of benzoic acid significantly accelerate these transformations. This approach provides polycyclic imidazolidinone derivatives in typically good yields.
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Affiliation(s)
- Zhengbo Zhu
- Department
of Chemistry and Chemical Biology, Rutgers,
The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Xin Lv
- Department
of Chemistry and Chemical Biology, Rutgers,
The State University of New Jersey, Piscataway, New Jersey 08854, United States
- Department
of Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, People’s Republic
of China
| | - Jason E. Anesini
- Department
of Chemistry and Chemical Biology, Rutgers,
The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Daniel Seidel
- Department
of Chemistry and Chemical Biology, Rutgers,
The State University of New Jersey, Piscataway, New Jersey 08854, United States
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22
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Jia J, Yu A, Ma S, Zhang Y, Li K, Meng X. Solvent-Controlled Switchable Domino Reactions of MBH Carbonate: Synthesis of Benzothiophene Fused α-Pyran, 2,3-Dihydrooxepine, and Oxatricyclodecene Derivatives. Org Lett 2017; 19:6084-6087. [DOI: 10.1021/acs.orglett.7b02916] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jiru Jia
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Shanshan Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Youquan Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Ke Li
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
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23
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Meng X, Du Y, Zhang Q, Yu A, Zhang Y, Jia J, Liu X. Direct Functionalization of Azepane via Azomethine Ylides: A Highly Efficient Synthesis of Spirooxindoles Bearing a 1-Azabicyclo[5.3.0]decane Moiety. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700384] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiangtai Meng
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Yanlong Du
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Qi Zhang
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Aimin Yu
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Youquan Zhang
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Jiru Jia
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Xiujie Liu
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
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24
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Abstract
Amines such as 1,2,3,4-tetrahydroisoquinoline undergo redox-neutral annulations with 2-alkylquinoline-3-carbaldehydes as well as the corresponding 4-alkyl isomers and pyridine analogues. These processes involve dual C-H bond functionalization. Acetic acid is used as a cosolvent and acts as the sole promoter of these transformations.
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Affiliation(s)
- Zhengbo Zhu
- Department of Chemistry and
Chemical Biology, Rutgers, The State University
of New Jersey, Piscataway, New Jersey 08854, United States
| | - Daniel Seidel
- Department of Chemistry and
Chemical Biology, Rutgers, The State University
of New Jersey, Piscataway, New Jersey 08854, United States
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25
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de la Torre A, Kaiser D, Maulide N. Flexible and Chemoselective Oxidation of Amides to α-Keto Amides and α-Hydroxy Amides. J Am Chem Soc 2017; 139:6578-6581. [PMID: 28485589 DOI: 10.1021/jacs.7b02983] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A suite of flexible and chemoselective methods for the transition-metal-free oxidation of amides to α-keto amides and α-hydroxy amides is presented. These highly valuable motifs are accessed in good to excellent yields and stereoselectivities with high functional group tolerance. The utility of the method is showcased by the formal synthesis of a potent histone deacetylase inhibitor.
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Affiliation(s)
- Aurélien de la Torre
- Institute of Organic Chemistry, Faculty of Chemistry, University of Vienna , Währinger Straße 38, 1090 Vienna, Austria
| | - Daniel Kaiser
- Institute of Organic Chemistry, Faculty of Chemistry, University of Vienna , Währinger Straße 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, Faculty of Chemistry, University of Vienna , Währinger Straße 38, 1090 Vienna, Austria
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26
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Zhu Y, Zhou J, Jin S, Dong H, Guo J, Bai X, Wang Q, Bu Z. Metal-free diastereoselective construction of bridged ketal spirooxindoles via a Michael addition-inspired sequence. Chem Commun (Camb) 2017; 53:11201-11204. [DOI: 10.1039/c7cc05813f] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A TfOH-catalyzed highly diastereoselective Michael addition/ketalization sequence of 3-hydroxyoxindoles and ortho-hydroxychalcones was developed, leading to biologically important bridged ketal spirooxindoles in moderate to excellent yields.
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Affiliation(s)
- Yanshuo Zhu
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Jing Zhou
- School of Pharmaceutical Science
- Chongqing Research Center for Pharmaceutical Engineering
- Chongqing Medical University University
- Chongqing 400016
- China
| | - Shaojing Jin
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Huahui Dong
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Jiaomei Guo
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Xuguan Bai
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Qilin Wang
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Zhanwei Bu
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
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27
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Zhang Y, Yu A, Jia J, Ma S, Li K, Wei Y, Meng X. NaH promoted [4+3] annulation of crotonate-derived sulfur ylides with thioaurones: synthesis of 2,5-dihydrobenzo[4,5]thieno[3,2-b]oxepines. Chem Commun (Camb) 2017; 53:10672-10675. [DOI: 10.1039/c7cc04466f] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The [4+3] annulation reaction of crotonic acid derivative sulfur ylides with thioaurones has, for the first time, been reported using NaH as the base. A diverse array of 2,5-dihydrobenzo[4,5]thieno[3,2-b]oxepines is obtained in good to excellent yields. The proposed mechanism is investigated and supported by DFT calculations.
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Affiliation(s)
- Youquan Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Jiru Jia
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Shanshan Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Ke Li
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
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