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Ring-closing metathesis in the synthesis of fused indole structures. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Iioka R, Yorozu K, Sakai Y, Kawai R, Hatae N, Takashima K, Tanabe G, Wasada H, Yoshimatsu M. Synthesis of Azepino[1,2‐
a
]indole‐10‐amines via [6+1] Annulation of Ynenitriles with Reformatsky Reagent. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ryoya Iioka
- Department of Chemistry Faculty of Education Gifu University Yanagido 1–1 501-1193 Gifu Japan
| | - Kohei Yorozu
- Department of Chemistry Faculty of Education Gifu University Yanagido 1–1 501-1193 Gifu Japan
| | - Yoko Sakai
- Department of Chemistry Faculty of Education Gifu University Yanagido 1–1 501-1193 Gifu Japan
| | - Rika Kawai
- Department of Chemistry Faculty of Education Gifu University Yanagido 1–1 501-1193 Gifu Japan
| | - Noriyuki Hatae
- Faculty of Pharmaceutical Sciences Yokohama University of Pharmacy 601 Matano, Totsuka-ku 245-0066 Yokohama Kanagawa Japan
| | - Katsuki Takashima
- Faculty of Pharmacy Kinki University 3-4-1 Kowakae 577-8502 Higashi-osaka Osaka Japan
| | - Genzoh Tanabe
- Faculty of Pharmacy Kinki University 3-4-1 Kowakae 577-8502 Higashi-osaka Osaka Japan
| | - Hiroaki Wasada
- Department of Chemistry Faculty of Regional Study Gifu University Yanagido 1–1 501-1193 Gifu Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry Faculty of Education Gifu University Yanagido 1–1 501-1193 Gifu Japan
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3
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Singh R, Kumar S, Patil MT, Sun C, Salunke DB. Post‐Pictet‐Spengler Cyclization (PPSC): A Strategy to Synthesize Polycyclic β‐Carboline‐Derived Natural Products and Biologically Active N‐Heterocycles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000549] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Rahul Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
| | - Sunil Kumar
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
| | - Madhuri T. Patil
- Mehr Chand Mahajan DAV College for Women, Sector 36 Chandigarh 160036 India
| | - Chung‐Ming Sun
- Department of Applied Chemistry National Chiao-Tung University Hsinchu Taiwan
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung 807-08 Taiwan
| | - Deepak B. Salunke
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
- National Interdisciplinary Centre of Vaccine Immunotherapeutics and Antimicrobials Panjab University Chandigarh 160014 India
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4
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Walker E, Kammeraad J, Goetz J, Robo MT, Tewari A, Zimmerman PM. Learning To Predict Reaction Conditions: Relationships between Solvent, Molecular Structure, and Catalyst. J Chem Inf Model 2019; 59:3645-3654. [PMID: 31381340 DOI: 10.1021/acs.jcim.9b00313] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction databases provide a great deal of useful information to assist planning of experiments but do not provide any interpretation or chemical concepts to accompany this information. In this work, reactions are labeled with experimental conditions, and network analysis shows that consistencies within clusters of data points can be leveraged to organize this information. In particular, this analysis shows how particular experimental conditions (specifically solvent) are effective in enabling specific organic reactions (Friedel-Crafts, Aldol addition, Claisen condensation, Diels-Alder, and Wittig), including variations within each reaction class. Network analysis shows data points for reactions tend to break into clusters that depend on the catalyst and chemical structure. This type of clustering, which mimics how a chemist reasons, is derived directly from the network. Therefore, the findings of this work could augment synthesis planning by providing predictions in a fashion that mimics human chemists. To numerically evaluate solvent prediction ability, three methods are compared: network analysis (through the k-nearest neighbor algorithm), a support vector machine, and a deep neural network. The most accurate method in 4 of the 5 test cases is the network analysis, with deep neural networks also showing good prediction scores. The network analysis tool was evaluated by an expert panel of chemists, who generally agreed that the algorithm produced accurate solvent choices while simultaneously being transparent in the underlying reasons for its predictions.
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Affiliation(s)
- Eric Walker
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109 , United States
| | - Joshua Kammeraad
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109 , United States
| | - Jonathan Goetz
- Department of Statistics , University of Michigan , 1085 South University Avenue , Ann Arbor , Michigan 48109 , United States
| | - Michael T Robo
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109 , United States
| | - Ambuj Tewari
- Department of Statistics , University of Michigan , 1085 South University Avenue , Ann Arbor , Michigan 48109 , United States
| | - Paul M Zimmerman
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109 , United States
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Devi N, Kumar S, Pandey SK, Singh V. 1(3)-Formyl-β-carbolines: Potential Aldo-X Precursors for the Synthesis of β-Carboline-Based Molecular Architectures. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700477] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Nisha Devi
- Department of Chemistry; Dr B. R. Ambedkar National Institute of Technology, Jalandhar (NITJ); 144011 Punjab India
| | - Sunit Kumar
- Department of Chemistry; Dr B. R. Ambedkar National Institute of Technology, Jalandhar (NITJ); 144011 Punjab India
| | | | - Virender Singh
- Department of Chemistry; Dr B. R. Ambedkar National Institute of Technology, Jalandhar (NITJ); 144011 Punjab India
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7
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Dighe SU, Yadav VD, Mahar R, Shukla SK, Batra S. Intramolecular Csp2–Csp2 Friedel–Crafts Arylation: Substrate- and Condition-Controlled Divergent Synthesis of Fused-β-carbolines. Org Lett 2016; 18:6010-6013. [DOI: 10.1021/acs.orglett.6b02794] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | | | | | | | - Sanjay Batra
- Academy of Scientific
and Innovative Research, New Delhi-110025, India
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8
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Singh D, Devi N, Kumar V, Malakar CC, Mehra S, Rattan S, Rawal RK, Singh V. Natural product inspired design and synthesis of β-carboline and γ-lactone based molecular hybrids. Org Biomol Chem 2016; 14:8154-66. [PMID: 27511703 DOI: 10.1039/c6ob01216g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
β-Carboline and γ-lactone moieties have been selected by nature as privileged scaffolds and display a wide range of pharmacological properties. Following nature, we envisaged the preparation of new β-carboline and γ-lactone based molecular hybrids incorporating both the pharmacophores. In this regard, a water-assisted In-mediated environmentally benign and easy to execute single-step tandem Barbier type allylation-lactonisation process has been devised in order to afford the targeted molecular architectures. It is anticipated that aqueous medium plays the key role in allylation as well as in the subsequent lactonisation process for the diastereo-selective synthesis of these conjugates. It is believed that water drives the reaction pathway through dual activation, it increases the electrophilic character of formyl and ester functionalities and simultaneously enhances the nucleophilic potential of the hydroxyl group to facilitate the in situ intramolecular condensation. Importantly, during this synthetic strategy no column chromatographic purification was required at any stage.
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Affiliation(s)
- Dharmender Singh
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology (NIT), Jalandhar, 144011, Punjab, India.
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9
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Dighe SU, Mahar R, Shukla SK, Kant R, Srivastava K, Batra S. Synthesis of S-(-)-5,6-Dihydrocanthin-4-ones via a Triple Cooperative Catalysis-Mediated Domino Reaction. J Org Chem 2016; 81:4751-61. [PMID: 27159615 DOI: 10.1021/acs.joc.6b00613] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An enantioselective synthesis of S-(-)-5,6-dihydrocanthin-4-ones via a triple cooperative catalysis-mediated domino reaction having a broad substrate scope is reported. The reaction between substituted 1-formyl-9H-β-carbolines and terminal alkynes in the presence of catalytic amounts of Jorgensen-Hayashi catalyst, copper iodide, and Hunig base proceeded via a multicascade route, affording the title compounds in good yields and excellent ees with interesting mechanistic features. These compounds were assessed for in vitro antiplasmodial activity against P. falciparum strains. Additionally, 5,6-dihydrocanthin-4-ones are demonstrated to be a versatile precursor to different fused β-carboline derivatives via simple synthetic transformations.
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Affiliation(s)
| | | | - Sanjeev K Shukla
- Academy of Scientific and Innovative Research , New Delhi 110025, India
| | | | - Kumkum Srivastava
- Academy of Scientific and Innovative Research , New Delhi 110025, India
| | - Sanjay Batra
- Academy of Scientific and Innovative Research , New Delhi 110025, India
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10
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Singh D, Devi N, Kumar V, Malakar CC, Mehra S, Rawal RK, Kaith BS, Singh V. Metal-free 1,3-dipolar cycloaddition approach towards the regioselective synthesis of β-carboline and isoxazole based molecular hybrids. RSC Adv 2016. [DOI: 10.1039/c6ra15875g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nature has nourished β-carboline and isoxazole derivatives as privileged scaffolds and consequently they are ubiquitously found in alkaloids isolated from various sources.
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Affiliation(s)
- Dharmender Singh
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Nisha Devi
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Vipin Kumar
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Chandi C. Malakar
- Department of Chemistry
- National Institute of Technology (NIT) Manipur
- Imphal 795004
- India
| | - Saloni Mehra
- Amity Institute of Applied Sciences
- Amity University
- Noida
- India
| | - Ravindra K. Rawal
- Department of Pharmaceutical Chemistry
- Indo-Soviet Friendship College of Pharmacy
- Moga 142001
- India
| | - B. S. Kaith
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Virender Singh
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
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11
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Devi N, Singh D, Honey H, Mor S, Chaudhary S, Rawal RK, Kumar V, Chowdhury AK, Singh V. In(OTf)3 catalysed an expeditious synthesis of β-carboline–imidazo[1,2-a]pyridine and imidazo[1,2-a]pyrazine conjugates. RSC Adv 2016. [DOI: 10.1039/c6ra04841b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
β-Carboline containing alkaloids are ubiquitously present in Nature, while an imidazo[1,2-a]pyridine nucleus is incorporated in various synthetic commercial drugs and biologically previliged moieties.
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Affiliation(s)
- Nisha Devi
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Dharmender Singh
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Honey Honey
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Satbir Mor
- Department of Chemistry
- GJ University of Science and Technology Hisar
- India
| | - Sandeep Chaudhary
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur (MNIT)
- India
| | - Ravindra K. Rawal
- Department of Pharmaceutical Chemistry
- Indo-Soviet Friendship College of Pharmacy
- Moga 142001
- India
| | - Vipin Kumar
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Asim K. Chowdhury
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
| | - Virender Singh
- Department of Chemistry
- Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar
- India
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12
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Bhowmik S, Bhattacharyya S, Batra S. An alternate route to substituted 6,7-dihydro 5H-dibenz[c,e]azepines from allylbenzamides derived from the Morita–Baylis–Hillman adducts. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Abarca B, Custodio R, Cuadro AM, Sucunza D, Domingo A, Mendicuti F, Alvarez-Builla J, Vaquero JJ. Efficient Synthesis of an Indoloquinolizinium Alkaloid Selective DNA-Binder by Ring-Closing Metathesis. Org Lett 2014; 16:3464-7. [DOI: 10.1021/ol5013668] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Beatriz Abarca
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
| | - Raul Custodio
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
| | - Ana M. Cuadro
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
| | - David Sucunza
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
| | - Alberto Domingo
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
| | - Francisco Mendicuti
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
| | - Julio Alvarez-Builla
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
| | - Juan J. Vaquero
- Departamento de Química Orgánica y Química Inorgánica, ‡Departamento de
Biología de Sistemas, §Departamento de Química Analítica,
Química Física e Ingeniería Química, Universidad de Alcalá, 28871-Alcalá de Henares,
Madrid, Spain
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14
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Bhowmik S, Batra S. Morita-Baylis-Hillman Approach toward Formal Total Synthesis of Tamiflu and Total Synthesis of Gabaculine. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300977] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Bhowmik S, Khanna S, Srivastava K, Hasanain M, Sarkar J, Verma S, Batra S. An efficient combinatorial synthesis of allocolchicine analogues via a triple cascade reaction and their evaluation as inhibitors of insulin aggregation. ChemMedChem 2013; 8:1767-72. [PMID: 24009069 DOI: 10.1002/cmdc.201300302] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Indexed: 11/05/2022]
Abstract
A controlled cascade: A divergent, diastereoselective and efficient one-pot synthesis of allocolchicinoids via a cascade Suzuki-Michael addition-Carbocyclization sequence is described. The utility of the compounds as possible inhibitors of insulin aggregation is also presented.
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Affiliation(s)
- Subhendu Bhowmik
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS 10/1, Sector 10, Jankipuram Extension, Sitapur Rd, Lucknow 226031 (India)
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16
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Kunnikuruvan S, Batra S, Nair NN. Enhancing the Reaction Rates of Morita-Baylis-Hillman Reaction in Heterocyclic Aldehydes by Substitutions. Chemphyschem 2012; 13:3723-30. [DOI: 10.1002/cphc.201200372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Indexed: 11/11/2022]
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