1
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Pandey AR, Tiwari DK, Prakhar A, Mishra DP, Sharma SK. A review towards synthesis of heterocycles using propargyl alcohols and propargyl amines. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02927-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Shankar M, Anasuyamma U, Swamy KCK. Reaction of Indole‐2‐Carboxylates/Carboxylic Acids with Propargylic Alcohols: Dearomative Ring Expansion/Spirocyclization vs Fused Pentacyclics. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mallepalli Shankar
- School of Chemistry University of Hyderabad Hyderabad 500046 Telangana India
| | | | - K. C. Kumara Swamy
- School of Chemistry University of Hyderabad Hyderabad 500046 Telangana India
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3
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Kadagathur M, Patra S, Sigalapalli DK, Shankaraiah N, Tangellamudi ND. Syntheses and medicinal chemistry of azepinoindolones: a look back to leap forward. Org Biomol Chem 2021; 19:738-764. [PMID: 33459333 DOI: 10.1039/d0ob02181d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nitrogen-containing heterocyclic scaffolds constitute nearly 75% of small molecules which favorably act as drug candidates. For the past few decades, numerous natural and synthetic indole-based scaffolds have been reported for their diverse pharmacological profiles. In particular, indole-fused azepines, termed azepinoindolones, have come under the radar of medicinal chemists owing to their synthetic and pharmacological importance. A plethora of literature reports has been generated thereof, which calls for the need for the compilation of information to understand their current status in drug discovery. Accumulating reports of evidence suggest that compounds containing this privileged scaffold display their cytotoxic effects via inhibition of kinase, topoisomerase I, mitochondrial malate dehydrogenase (mMDH), and tubulin polymerization and as DNA minor groove binding agents. Herein, we endeavor to present a closer look at the advancements of various synthetic and derivatization methods of azepinoindolone-based compounds. We have further extended our efforts to discuss the pharmacological effects of azepinoindolones in the whole range of medicinal chemistry as anti-Alzheimer, anticancer, anti-inflammatory, antidiabetic, antileishmanial, and antipyranosomal agents and as drug delivery vectors. Our analysis of recent advances reveals that azepinoindolones will continue to serve as potential pharmaceutical modalities in the years to come and their substantial pool of synthetic methods will be ever expanding.
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Affiliation(s)
- Manasa Kadagathur
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
| | - Sandip Patra
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
| | - Dilep Kumar Sigalapalli
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
| | - Neelima D Tangellamudi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
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4
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Liu X, Liu Y, Chen L. Tandem Annulations of Propargylic Alcohols to Indole Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000930] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao‐Yan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical Engineering Guangzhou University 230 Wai Huan Xi Road Guangzhou 510006 People's Republic of China
| | - Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
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5
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Okitsu T, Namura A, Kondo S, Tada S, Yanagida M, Wada A. Ynamides enabled 6-, 7-, and 8-endo-dig iodocyclization of ethoxyethyl ethers: rapid construction of medium-sized oxacycles at room temperature. Org Chem Front 2020. [DOI: 10.1039/d0qo00153h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iodocyclization of ynamides enabled the construction of six, seven-, and eight-membered oxacycles in very short reaction times at room temperature.
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Affiliation(s)
| | | | - Shinji Kondo
- Kobe Pharmaceutical University
- Kobe 658-8558
- Japan
| | - Shoya Tada
- Kobe Pharmaceutical University
- Kobe 658-8558
- Japan
| | | | - Akimori Wada
- Kobe Pharmaceutical University
- Kobe 658-8558
- Japan
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6
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Aqua mediated multicomponent reaction under phase transfer catalysis: A novel and green approach to access fused pyrazoles. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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7
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Affiliation(s)
- Hongwei Qian
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Yicheng Bi
- Qingdao University of Science & TechnologySifang Campus 53 Zhengzhou Road Qingdao Shandong 266042 People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
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8
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Khan T, Yaragorla S. Iodocyclization of Propargyl Alcohols: Highly Facile Approach to Hetero/Carbocyclic Iodides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900474] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tabassum Khan
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
| | - Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
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9
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Schlegel M, Schneider C. Iron(III)-Catalyzed (4 + 2)-Cycloannulation of 2-Hydroxy Ketoxime Ethers with Indol-2-ylamides: Synthesis of Indole-Fused 2-Piperidinones. J Org Chem 2019; 84:5886-5892. [PMID: 30917274 DOI: 10.1021/acs.joc.9b00261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly regio- and diastereoselective (4 + 2)-cycloannulation process of indanone-derived 2-hydroxy ketoxime ethers with 1,4-bisnucleophilic indol-2-ylamides has been developed. In the presence of 5 mol % FeCl3, densely functionalized 2-piperidinones containing two new σ-bonds and two vicinal quaternary stereogenic centers were formed under mild reaction conditions in a one-pot operation. Moreover, most of the products directly precipitated out of the solution and were isolated by simple filtration without purification by column chromatography.
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Affiliation(s)
- Marcel Schlegel
- Institut für Organische Chemie , Universität Leipzig , Johannisallee 29 , D-04103 Leipzig , Germany
| | - Christoph Schneider
- Institut für Organische Chemie , Universität Leipzig , Johannisallee 29 , D-04103 Leipzig , Germany
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10
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11
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Li HH, Li XX, Zhao ZG, Lin CB, Ma T, Sun CY, Yang BW, Fu XL. An intermolecular iodoamination of allenamides with sulfonamides mediated by N -iodosuccinimide. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Ke D, Espinosa NÁ, Mallet-Ladeira S, Monot J, Martin-Vaca B, Bourissou D. Efficient Synthesis of Unsaturatedδ-and ε-Lactones/Lactams by Catalytic Cycloisomerization: When Pt Outperforms Pd. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600382] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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13
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Huang H, Tang L, Han X, He G, Xi Y, Zhu H. Regioselective iodoamination of terminal ynamides for the synthesis of α-amino-β,β-diiodo-enamides. Chem Commun (Camb) 2016; 52:4321-4. [DOI: 10.1039/c6cc00370b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We developed the intermolecular iodoamination of terminal ynamides for the synthesis of α-amino-β,β-diiodo-enamides.
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Affiliation(s)
- Hai Huang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Luning Tang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Xiaobo Han
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Guangke He
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Yang Xi
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Hongjun Zhu
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
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14
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Fedoseev P, Sharma N, Khunt R, Ermolat'ev DS, Van der Eycken EV. Iodine-mediated regioselective guanylation-amination of propargylamines towards the synthesis of diversely substituted 2-aminoimidazoles. RSC Adv 2016. [DOI: 10.1039/c6ra13371a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A diversity-oriented approach for the synthesis of 2-aminoimidazoles is presented.
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Affiliation(s)
- Pavel Fedoseev
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Belgium
| | - Nandini Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Belgium
| | - Rupesh Khunt
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Belgium
| | - Denis S. Ermolat'ev
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Belgium
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Belgium
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15
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Kumar R, Arigela RK, Samala S, Kundu B. Diversity Oriented Synthesis of Indoloazepinobenzimidazole and Benzimidazotriazolobenzodiazepine from N(1)-Alkyne-1,2-diamines. Chemistry 2015; 21:18828-33. [PMID: 26525303 DOI: 10.1002/chem.201502956] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/14/2015] [Indexed: 12/20/2022]
Abstract
A one-pot protocol for the diversity oriented synthesis of two N-polyheterocycles indoloazepinobenzimidazole and benzimidazotriazolobenzodiazepine from a common N(1)-alkyne-1,2-diamine building block is described. The approach involves sequential formation of benzimidazole through cyclocondensation and oxidation, which is followed by the formation of either an azepine ring (through alkyne activation and 6-endo-dig cyclization, 1,2-migration with ring expansion, and re-aromatization), or diazepine and triazole rings through 1,3-dipolar cycloaddition.
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Affiliation(s)
- Ravi Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031 (India).,Academy of Scientific and Innovative Research, New Delhi, 110001 (India)
| | - Rajesh K Arigela
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031 (India)
| | - Srinivas Samala
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031 (India)
| | - Bijoy Kundu
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031 (India). .,Academy of Scientific and Innovative Research, New Delhi, 110001 (India).
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16
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Martins GM, Zeni G, Back DF, Kaufman TS, Silveira CC. Expedient Iodocyclization Approach Toward Polysubstituted 3H-Benzo[e]indoles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500275] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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17
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Mistry SN, Shonberg J, Draper-Joyce CJ, Herenbrink CK, Michino M, Shi L, Christopoulos A, Capuano B, Scammells PJ, Lane JR. Discovery of a Novel Class of Negative Allosteric Modulator of the Dopamine D2 Receptor Through Fragmentation of a Bitopic Ligand. J Med Chem 2015; 58:6819-43. [PMID: 26258690 PMCID: PMC10823399 DOI: 10.1021/acs.jmedchem.5b00585] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recently, we have demonstrated that N-((trans)-4-(2-(7-cyano-3,4-dihydroisoquinolin-2(1H)-yl)ethyl)cyclohexyl)-1H-indole-2-carboxamide (SB269652) (1) adopts a bitopic pose at one protomer of a dopamine D2 receptor (D2R) dimer to negatively modulate the binding of dopamine at the other protomer. The 1H-indole-2-carboxamide moiety of 1 extends into a secondary pocket between the extracellular ends of TM2 and TM7 within the D2R protomer. To target this putative allosteric site, we generated and characterized fragments that include and extend from the 1H-indole-2-carboxamide moiety of 1. N-Isopropyl-1H-indole-2-carboxamide (3) displayed allosteric pharmacology and sensitivity to mutations of the same residues at the top of TM2 as was observed for 1. Using 3 as an "allosteric lead", we designed and synthesized an extensive fragment library to generate novel SAR and identify N-butyl-1H-indole-2-carboxamide (11d), which displayed both increased negative cooperativity and affinity for the D2R. These data illustrate that fragmentation of extended compounds can expose fragments with purely allosteric pharmacology.
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Affiliation(s)
- Shailesh N. Mistry
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - Jeremy Shonberg
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - Christopher J. Draper-Joyce
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - Carmen Klein Herenbrink
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - Mayako Michino
- Computational Chemistry and Molecular Biophysics Unit, National Institute on Drug Abuse – Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
| | - Lei Shi
- Computational Chemistry and Molecular Biophysics Unit, National Institute on Drug Abuse – Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
- Department of Physiology and Biophysics, Weill Medical College of Cornell University, New York, NY, USA
- Institute for Computational Biomedicine, Weill Medical College of Cornell University, New York, NY, USA
| | - Arthur Christopoulos
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - Ben Capuano
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - Peter J. Scammells
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - J. Robert Lane
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
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18
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Gangadhararao G, Uruvakilli A, Swamy KCK. Brønsted Acid Mediated Alkenylation and Copper-Catalyzed Aerobic Oxidative Ring Expansion/Intramolecular Electrophilic Substitution of Indoles with Propargyl Alcohols: A Novel One-Pot Approach to Cyclopenta[c]quinolines. Org Lett 2014; 16:6060-3. [DOI: 10.1021/ol502783j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- G. Gangadhararao
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
| | | | - K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
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19
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Samala S, Arigela RK, Kant R, Kundu B. Diversity-oriented synthesis of ketoindoloquinoxalines and indolotriazoloquinoxalines from 1-(2-nitroaryl)-2-alkynylindoles. J Org Chem 2014; 79:2491-500. [PMID: 24571484 DOI: 10.1021/jo402783p] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A one-pot protocol for the diversity-oriented synthesis of two indole-based annulated polyheterocycles, ketoindoloquinoxalines and indolotriazoloquinoxalines, has been described. The salient features of the methodology involves either a metal/O2-catalyzed aminooxygenation or a [3 + 2] cycloaddition pathway.
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Affiliation(s)
- Srinivas Samala
- Medicinal and Process Chemistry Division and ‡Molecular and Structural Biology Division, CSIR-Central Drug Research Institute , B.S. 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226001, India
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20
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Pandey S, Kumar SV, Kant R, Chauhan PMS. Base mediated 7-exo-dig intramolecular cyclization of Ugi–propargyl precursors: a highly efficient and regioselective synthetic approach toward diverse 1,4-benzoxazepine-5(2H)-ones. Org Biomol Chem 2014; 12:5346-50. [DOI: 10.1039/c4ob00793j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A metal-free facile and efficient two-step synthetic protocol for the preparation of 1,4-benzoxazepine-5(2H)-one derivatives has been developed.
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Affiliation(s)
- Shashi Pandey
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Sector 10
- Lucknow 226031, India
| | - S. Vinod Kumar
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Sector 10
- Lucknow 226031, India
| | - Ruchir Kant
- Molecular and Structural Biology Division
- CSIR-Central Drug Research Institute
- Sector 10
- Lucknow 226031, India
| | - Prem M. S. Chauhan
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Sector 10
- Lucknow 226031, India
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21
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Gao Y, Wu W, Huang H, Huang Y, Jiang H. Palladium-catalyzed intermolecular [3 + 2] carbocyclization of alkynols and propiolates: an efficient entry to halo-cyclopentadienes. Chem Commun (Camb) 2014; 50:846-8. [DOI: 10.1039/c3cc47310d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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22
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Li TJ, Liu ZQ, Yin HM, Yao CS, Jiang B, Wang XS, Tu SJ, Li XL, Li G. Metal-free [3 + 2 + 1]/[2 + 2 + 1] biscyclization: stereospecific construction with concomitant functionalization of indolizin-5(1H)-one. J Org Chem 2013; 78:11414-20. [PMID: 24168348 PMCID: PMC3876276 DOI: 10.1021/jo401969g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A metal-free [3 + 2 + 1]/[2 + 2 + 1] biscyclization strategy has been developed for the stereospecific construction with concomitant derivation of biologically significant indolizin-5(1H)-ones from simple and commercial starting materials. The transformations are notable because they can yield five new σ bonds and six stereocenters including a quaternary carbon center in a single operation.
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Affiliation(s)
- Tuan-Jie Li
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Zhong-Qiu Liu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Hong-Mei Yin
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Chang-Sheng Yao
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xiang-Shan Wang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | | | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Nanjing Univers ity, Nanjing 210093, P. R. China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
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Gawande SD, Kavala V, Zanwar MR, Kuo CW, Huang HN, He CH, Kuo TS, Yao CF. Molecular Iodine-Mediated Cascade Reaction of 2-Alkynylbenzaldehyde and Indole: An Easy Access to Tetracyclic Indoloazulene Derivatives. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300421] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Samala S, Saifuddin M, Mandadapu AK, Kundu B. Three-Component Tandem-Intramolecular Hydroamination Reactions in One Pot Involving Indoles, 2-Aminobenzyl Alcohols, and 2-Alkynylbenzaldehydes: Consecutive 7-endo-trigand Electrophilic 6-endo-digCyclizations. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300100] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Miao CB, Dong CP, Zhang M, Ren WL, Meng Q, Sun XQ, Yang HT. Highly Stereoselective, One-Pot Synthesis of Azetidines and 2,4-Dioxo-1,3-diazabicyclo[3.2.0] Compounds Mediated by I2. J Org Chem 2013; 78:4329-40. [DOI: 10.1021/jo400181r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chun-Bao Miao
- School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Chun-Ping Dong
- School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Min Zhang
- School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Wen-Long Ren
- School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Qi Meng
- School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Xiao-Qiang Sun
- School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Hai-Tao Yang
- School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
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Arigela RK, Sharma SK, Kumar B, Kundu B. Microwave-assisted three-component domino reaction: Synthesis of indolodiazepinotriazoles. Beilstein J Org Chem 2013; 9:401-5. [PMID: 23504610 PMCID: PMC3596043 DOI: 10.3762/bjoc.9.41] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 01/23/2013] [Indexed: 11/23/2022] Open
Abstract
A microwave-assisted three-component protocol involving N-1 alkylation of 2-alkynylindoles with epichlorohydrin, ring opening of the epoxide with sodium azide, and an intramolecular Huisgen azide-internal alkyne 1,3-dipolar cycloaddition domino sequence has been described. The efficacy of the methodology has been demonstrated by treating various 2-alkynylindoles (aromatic/aliphatic) with epichlorohydrin and sodium azide furnishing annulated tetracyclic indolodiazepinotriazoles in satisfactory yields.
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Affiliation(s)
- Rajesh K Arigela
- Medicinal & Process Chemistry Division CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Sudhir K Sharma
- Medicinal & Process Chemistry Division CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Brijesh Kumar
- Sophisticated Analytical and Instrumental Facility, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Bijoy Kundu
- Medicinal & Process Chemistry Division CSIR-Central Drug Research Institute, Lucknow-226001, India
- Sophisticated Analytical and Instrumental Facility, CSIR-Central Drug Research Institute, Lucknow-226001, India
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Batchu H, Bhattacharyya S, Batra S. Iodine-Mediated Intramolecular Electrophilic Aromatic Cyclization in Allylamines: A General Route to Synthesis of Quinolines, Pyrazolo[4,3-b]pyridines, and Thieno[3,2-b]pyridines. Org Lett 2012; 14:6330-3. [DOI: 10.1021/ol303109m] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Harikrishna Batchu
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, PO Box 173, Lucknow 226001, India
| | - Soumya Bhattacharyya
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, PO Box 173, Lucknow 226001, India
| | - Sanjay Batra
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, PO Box 173, Lucknow 226001, India
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Mishra NM, Vachhani DD, Modha SG, Van der Eycken EV. Diversely Substituted Imidazo[1,2-a]pyrazine-8-oxo-3-carbaldehydes: An Iodine-Mediated Cyclization/Oxidation Approach. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201150] [Citation(s) in RCA: 12] [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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29
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Agarwal PK, Dathi MD, Saifuddin M, Kundu B. Engineering of indole-based tethered biheterocyclic alkaloid meridianin into β-carboline-derived tetracyclic polyheterocycles via amino functionalization/6-endo cationic π-cyclization. Beilstein J Org Chem 2012; 8:1901-8. [PMID: 23209529 PMCID: PMC3511029 DOI: 10.3762/bjoc.8.220] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 10/19/2012] [Indexed: 01/14/2023] Open
Abstract
A mild, efficient and versatile method has been developed for the construction of a functionalized natural product, meridianin, and its post conversion to pyrimido-β-carboline by cationic π- cyclization. The strategy involves the introduction of an amino group at the C-5 of the pyrimidine ring and utilizing the nucleophilictiy of the C-2 in the indole ring to facilitate cationic π-cyclization.
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Affiliation(s)
- Piyush Kumar Agarwal
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, CSIR, Lucknow, 226001, India,
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Synthesis of novel 9-(1-iodovinyl)acridin-(2H)-one through iodine mediated cascade 6-endo-dig cyclization followed by condensation and 3,3-sigmatropic migration of 2-aminophenyl propynyl oxyenone. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Synthesis of 8-aryl substituted benzo[a]phenanthridine derivatives by consecutive three component tandem reaction and 6-endo carbocyclization. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.067] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Arigela RK, Mandadapu AK, Sharma SK, Kumar B, Kundu B. Cascade Intermolecular Michael Addition–Intramolecular Azide/Internal Alkyne 1,3-Dipolar Cycloaddition Reaction in One Pot. Org Lett 2012; 14:1804-7. [DOI: 10.1021/ol300399y] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Rajesh K. Arigela
- Medicinal & Process Chemistry Division and Sophisticated Analytical and Instrumental Facility, Central Drug Research Institute, CSIR, Lucknow-226001, India
| | - Anil K. Mandadapu
- Medicinal & Process Chemistry Division and Sophisticated Analytical and Instrumental Facility, Central Drug Research Institute, CSIR, Lucknow-226001, India
| | - Sudhir K. Sharma
- Medicinal & Process Chemistry Division and Sophisticated Analytical and Instrumental Facility, Central Drug Research Institute, CSIR, Lucknow-226001, India
| | - Brijesh Kumar
- Medicinal & Process Chemistry Division and Sophisticated Analytical and Instrumental Facility, Central Drug Research Institute, CSIR, Lucknow-226001, India
| | - Bijoy Kundu
- Medicinal & Process Chemistry Division and Sophisticated Analytical and Instrumental Facility, Central Drug Research Institute, CSIR, Lucknow-226001, India
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33
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Affiliation(s)
- Morteza Shiri
- Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran.
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35
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Tsukano C, Yokouchi S, Girard AL, Kuribayashi T, Sakamoto S, Enomoto T, Takemoto Y. Platinum catalyzed 7-endo cyclization of internal alkynyl amides and its application to synthesis of the caprazamycin core. Org Biomol Chem 2012; 10:6074-86. [DOI: 10.1039/c2ob25111f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Ramachandran G, Karthikeyan NS, Giridharan P, Sathiyanarayanan KI. Efficient iodine catalyzed three components domino reaction for the synthesis of 1-((phenylthio)(phenyl)methyl)pyrrolidin-2-one derivatives possessing anticancer activities. Org Biomol Chem 2012; 10:5343-6. [DOI: 10.1039/c2ob25530h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Gupta S, Kumar B, Kundu B. Three-Component Tandem Reaction Involving Acid Chlorides, Terminal Alkynes, and 2-Aminoindole Hydrochlorides: Synthesis of α-Carboline Derivatives in Aqueous Conditions via Regioselective [3 + 3] Cyclocondensation. J Org Chem 2011; 76:10154-62. [DOI: 10.1021/jo201994v] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Sahaj Gupta
- Medicinal & Process Chemistry Division and ‡Sophisticated and Analytical Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Brijesh Kumar
- Medicinal & Process Chemistry Division and ‡Sophisticated and Analytical Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Bijoy Kundu
- Medicinal & Process Chemistry Division and ‡Sophisticated and Analytical Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
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38
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Saifuddin M, Agarwal PK, Kundu B. One-Pot Zn/CuI/TFA-Catalyzed Domino Three-Component–Carbocyclization Reaction Involving Biphenyl-2-carbaldehydes/Alkynes/Piperidine: Allenes-Mediated Construction of Phenanthrenes. J Org Chem 2011; 76:10122-8. [DOI: 10.1021/jo201942r] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mohammad Saifuddin
- Medicinal & Process Chemistry Division, Central Drug Research Institute, CSIR, Lucknow 226 001, India
| | - Piyush K. Agarwal
- Medicinal & Process Chemistry Division, Central Drug Research Institute, CSIR, Lucknow 226 001, India
| | - Bijoy Kundu
- Medicinal & Process Chemistry Division, Central Drug Research Institute, CSIR, Lucknow 226 001, India
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