1
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Bokam R, Munipalle K, Appa Rao Annam SCV, Gundoju N, Raju Chowhan L, Ponnapalli MG. A one-pot ultrasound-assisted regio and stereoselective synthesis of indenoquinoxaline engrafted spiropyrrolidines. Org Biomol Chem 2024; 22:5150-5158. [PMID: 38856015 DOI: 10.1039/d4ob00288a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
A catalyst free ultrasound-assisted regio-/stereoselective modular approach was accomplished for the synthesis of highly constrained indenoquinoxaline engrafted spiro pyrrolidines from easily available substrates. This one-pot strategy utilizes 1,3-dipolar cycloaddition from a four component reaction of ninhydrin, 1,2-phenylenediamine, β-nitrostyrene and benzylamine or amino acids under ultrasound irradiation. The transformation is mild and operationally simple, providing architecturally complex fused spiro polycyclic heterocycles. This synthesis was confined to follow the group-assistant-purification (GAP) chemistry process, which can avoid chromatographic purifications and use of catalysts and allows easy access to a novel class of spiro engrafted polyheterocyclic scaffolds, which may be beneficial in biomedical research/materials science in the near future. This opens an era for the formation of a single exo product, when compared with reported protocols, by merely switching over reaction conditions to US irradiation.
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Affiliation(s)
- Ramesh Bokam
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
| | - Kiran Munipalle
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - S Ch V Appa Rao Annam
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
| | - Narayanarao Gundoju
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
| | - L Raju Chowhan
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Mangala Gowri Ponnapalli
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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2
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Song JR, Li XJ, Shi J, Chi Q, Wu W, Ren H. Direct synthesis of N-functionalized indoles through isomerization of azomethine ylides. Org Biomol Chem 2024; 22:741-744. [PMID: 38170630 DOI: 10.1039/d3ob01393f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
An unexpected isomerization of azomethine ylides generated in situ from isatin with indoline-2-carboxylic acid has been disclosed, providing direct access to N-functionalized indole scaffolds. This protocol has good functional group tolerance and provides various 3-(1H-indol-1-yl)indolin-2-one derivatives in moderate to high yields simply by using alcohol as the solvent, with no additional additive being required.
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Affiliation(s)
- Jun-Rong Song
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Xiong-Jiang Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Jun Shi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Qin Chi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Wei Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Hai Ren
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
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3
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Wang Y, Yan L, Yan Y, Li S, Lu H, Liu J, Dong J. Dipolarophile-Controlled Regioselective 1,3-Dipolar Cycloaddition: A Switchable Divergent Access to Functionalized N-Fused Pyrrolidinyl Spirooxindoles. Int J Mol Sci 2023; 24:ijms24043771. [PMID: 36835183 PMCID: PMC9966135 DOI: 10.3390/ijms24043771] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/10/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
N-fused pyrrolidinyl spirooxindole belongs to a class of privileged heterocyclic scaffolds and is prevalent in natural alkaloids and synthetic pharmaceutical molecules. To realize the switchable synthesis of divergent N-fused pyrrolidinyl spirooxindoles for further biological activity evaluation via a substrate-controlled strategy, a chemically sustainable, catalysis-free, and dipolarophile-controlled three-component 1,3-dipolar cycloaddition of isatin-derived azomethine ylides with diverse dipolarophiles is described in this work. A total of 40 functionalized N-fused pyrrolidinyl spirooxindoles were synthesized in 76-95% yields with excellent diastereoselectivities (up to >99:1 dr). The scaffolds of these products can be well-controlled by employing different 1,4-enedione derivatives as dipolarophiles in EtOH at room temperature. This study provides an efficient strategy to afford a spectrum of natural-like and potentially bioactive N-fused pyrrolidinyl spirooxindoles.
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Affiliation(s)
- Yongchao Wang
- Colleage of Vocational and Technical Education, Yunnan Normal University, Kunming 650092, China
- Correspondence: or (Y.W.); (J.D.)
| | - Lijun Yan
- Colleage of Vocational and Technical Education, Yunnan Normal University, Kunming 650092, China
| | - Yuxin Yan
- Colleage of Vocational and Technical Education, Yunnan Normal University, Kunming 650092, China
| | - Sujin Li
- Colleage of Vocational and Technical Education, Yunnan Normal University, Kunming 650092, China
| | - Hongying Lu
- Colleage of Vocational and Technical Education, Yunnan Normal University, Kunming 650092, China
| | - Jia Liu
- Colleage of Vocational and Technical Education, Yunnan Normal University, Kunming 650092, China
| | - Jianwei Dong
- Colleage of Chemistry and Environmental Science, Qujing Normal University, Qujing 655011, China
- Correspondence: or (Y.W.); (J.D.)
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4
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Stereoselective synthesis, structural determination, computational studies and antimicrobial activity of novel class of spiropyrroloquinoxaline engrafted ferrocenoindole hybrid heterocycle. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Mani S, Raju R, Raghunathan R, Arumugam N, Almansour AI, Kumar RS, Perumal K. Multicomponent Domino Synthesis of Highly Functionalized Aryl and Heteroaryl Fused Pyrroloquinolinone Ring Systems
via
Environmentally Benign Solid‐state Melt Reaction. ChemistrySelect 2021. [DOI: 10.1002/slct.202103239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Suresh Mani
- Department of Organic Chemistry University of Madras, Guindy Campus Chennai 600 025 India
| | - Rajesh Raju
- Department of Organic Chemistry University of Madras, Guindy Campus Chennai 600 025 India
| | | | - Natarajan Arumugam
- Department of Chemistry College of Science King Saud University, P.O. Box 2455 Riyadh, 11451 Saudi Arabia
| | - Abdulrahman I. Almansour
- Department of Chemistry College of Science King Saud University, P.O. Box 2455 Riyadh, 11451 Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry College of Science King Saud University, P.O. Box 2455 Riyadh, 11451 Saudi Arabia
| | - Karthikeyan Perumal
- Department of Chemistry and Biochemistry The Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
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6
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Palomba M, De Monte E, Mambrini A, Bagnoli L, Santi C, Marini F. A three-component [3 + 2]-cycloaddition/elimination cascade for the synthesis of spirooxindole-pyrrolizines. Org Biomol Chem 2021; 19:667-676. [PMID: 33399163 DOI: 10.1039/d0ob02321c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A three-component synthesis of novel spirooxindole-tetrahydropyrrolizines from secondary α-aminoacids, isatins and vinyl selenones has been disclosed. Products were formed in good yields and high diastereoselectivity by 1,3-dipolar cycloaddition of in situ generated azomethine ylides followed by spontaneous elimination of benzeneseleninic acid. Good regioselectivities with aryl substituted vinyl selenones were observed. The method showed good functional group tolerance, providing a direct approach to biologically relevant spirooxindoles under mild reaction conditions.
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Affiliation(s)
- Martina Palomba
- Department of Pharmaceutical Sciences (Group of Catalysis, Synthesis and Organic Green Chemistry), University of Perugia, Via del Liceo, 1 - 06123 Perugia, Italy.
| | - Emanuela De Monte
- Department of Pharmaceutical Sciences (Group of Catalysis, Synthesis and Organic Green Chemistry), University of Perugia, Via del Liceo, 1 - 06123 Perugia, Italy.
| | - Andrea Mambrini
- Department of Pharmaceutical Sciences (Group of Catalysis, Synthesis and Organic Green Chemistry), University of Perugia, Via del Liceo, 1 - 06123 Perugia, Italy.
| | - Luana Bagnoli
- Department of Pharmaceutical Sciences (Group of Catalysis, Synthesis and Organic Green Chemistry), University of Perugia, Via del Liceo, 1 - 06123 Perugia, Italy.
| | - Claudio Santi
- Department of Pharmaceutical Sciences (Group of Catalysis, Synthesis and Organic Green Chemistry), University of Perugia, Via del Liceo, 1 - 06123 Perugia, Italy.
| | - Francesca Marini
- Department of Pharmaceutical Sciences (Group of Catalysis, Synthesis and Organic Green Chemistry), University of Perugia, Via del Liceo, 1 - 06123 Perugia, Italy.
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7
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Singh R, Bhardwaj D, Saini MR. Recent advancement in the synthesis of diverse spiro-indeno[1,2-b]quinoxalines: a review. RSC Adv 2021. [DOI: 10.1039/d0ra09130h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The nitrogen-containing indeno[1,2-b]quinoxaline ring is a privileged structurally fused active system and has notable applications in various fields of chemistry.
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Affiliation(s)
- Ruby Singh
- Department of Chemistry
- School of Basic Sciences
- Jaipur National University
- Jaipur
- India
| | - Diksha Bhardwaj
- Department of Chemistry
- School of Basic Sciences
- Jaipur National University
- Jaipur
- India
| | - Munna Ram Saini
- Department of Chemistry
- School of Basic Sciences
- Jaipur National University
- Jaipur
- India
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8
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Regio- and stereoselective synthesis of novel β-lactam engrafted spiroheterocyclic hybrids via one-pot three component cycloaddition strategy. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Jadhav C, Nipate AS, Chate AV, Dofe VS, Sangshetti JN, Khedkar VM, Gill CH. Rapid Construction of Substituted Dihydrothiophene Ureidoformamides at Room Temperature Using Diisopropyl Ethyl Ammonium Acetate: A Green Perspective. ACS OMEGA 2020; 5:29055-29067. [PMID: 33225136 PMCID: PMC7675536 DOI: 10.1021/acsomega.0c03575] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/22/2020] [Indexed: 05/26/2023]
Abstract
An economic, sustainable, and straightforward environmentally friendly synthesis of highly diversified polyfunctional dihydrothiophenes is successfully achieved via diisopropyl ethyl ammonium acetate as a room-temperature ionic liquid. Multicomponent synthesis contains domino processes; the benefit of this present protocol is highlighted by its readily available starting materials, superior functional group tolerance, purity of synthesized compounds was checked by high-performance liquid chromatography results in up to 99.7% purity for the synthesized compounds, reaction mass efficiency, effective mass yield, and excellent atom economy. In addition, a series of 2-(N-carbamoyl acetamide)-substituted 2,3-dihydrothiophene analogs were synthesized, and selected samples were chosen for testing their in vitro antibacterial and antifungal activities. Furthermore, a molecular docking study against sterol 14α-demethylase could provide valuable insight into the mechanism of antifungal action providing an opportunity for structure-based lead optimization.
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Affiliation(s)
- Chetan
K. Jadhav
- Department
of Chemistry, Dr. Babasaheb Ambedkar Marathwada
University, Aurangabad 431004, Maharashtra, India
| | - Amol S. Nipate
- Department
of Chemistry, Dr. Babasaheb Ambedkar Marathwada
University, Aurangabad 431004, Maharashtra, India
| | - Asha V Chate
- Department
of Chemistry, Dr. Babasaheb Ambedkar Marathwada
University, Aurangabad 431004, Maharashtra, India
| | - Vidya S. Dofe
- Department
of Chemistry, Deogiri College of Science, Aurangabad 431005, Maharashtra, India
| | - Jaiprakash N. Sangshetti
- Department
of Pharmaceutical Chemistry, Y. B. Chavan
College of Pharmacy, Dr. Rafiq Zakaria
Campus, Aurangabad 431 001, India
| | - Vijay M. Khedkar
- Department
of Pharmaceutical Chemistry, School of Pharmacy, Vishwakarma University, Pune 411048, India
| | - Charansingh. H. Gill
- Department
of Chemistry, Dr. Babasaheb Ambedkar Marathwada
University, Aurangabad 431004, Maharashtra, India
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10
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Three-Component Access to Functionalized Spiropyrrolidine Heterocyclic Scaffolds and Their Cholinesterase Inhibitory Activity. Molecules 2020; 25:molecules25081963. [PMID: 32340203 PMCID: PMC7221748 DOI: 10.3390/molecules25081963] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 02/06/2023] Open
Abstract
A novel one-pot [3+2]-cycloaddition reaction of (E)-3-arylidene-1-phenyl-succinimides, cyclic 1,2-diketones (isatin, 5-chloro-isatin and acenaphtenequinone), and diverse α-aminoacids such as 2-phenylglycine or sarcosine is reported. The reaction provides succinimide-substituted dispiropyrrolidine derivatives with high regio- and diastereoselectivities under mild reaction conditions. The stereochemistry of these N-heterocycles has been confirmed by four X-ray diffraction studies. Several synthetized compounds show higher inhibition on acetylcholinesterase (AChE) than butyrylcholinesterase (BChE). Of the 17 synthesized compounds tested, five exhibit good AChE inhibition with IC50 of 11.42 to 22.21 µM. A molecular docking study has also been undertaken for compound 4n possessing the most potent AChE inhibitory activity, disclosing its binding to the peripheral anionic site of AChE enzymes.
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11
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Das S. Recent applications of ninhydrin in multicomponent reactions. RSC Adv 2020; 10:18875-18906. [PMID: 35518326 PMCID: PMC9054093 DOI: 10.1039/d0ra02930k] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/24/2020] [Indexed: 12/29/2022] Open
Abstract
Ninhydrin (1,2,3-indanetrione hydrate) has a remarkable breadth in different fields, including organic chemistry, biochemistry, analytical chemistry and the forensic sciences. For the past several years, it has been considered an important building block in organic synthesis. Therefore, there is increasing interest in ninhydrin-based multicomponent reactions to rapidly build versatile scaffolds. Most of the works described here are simple reactions with readily available starting materials that result in complex molecular architectures. Some of the synthesized compounds exhibit interesting biological activities and constitute a new hope for anticancer agents. The present review aims to highlight the multicomponent reactions of ninhydrin towards diverse organic molecules during the period from 2014 to 2019. This article aims to review recent multicomponent reactions of ninhydrin towards diverse organic scaffolds, such as indeno-fused heterocycles, spiro-indeno heterocycles, quinoxalines, propellanes, cage-like compounds, and dispiro heterocycles.![]()
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Affiliation(s)
- Suven Das
- Department of Chemistry
- Rishi Bankim Chandra College for Women
- India
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12
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Ren W, Zhao Q, Yu M, Guo L, Chang H, Jiang X, Luo Y, Huang W, He G. Design and synthesis of novel spirooxindole–indenoquinoxaline derivatives as novel tryptophanyl-tRNA synthetase inhibitors. Mol Divers 2019; 24:1043-1063. [DOI: 10.1007/s11030-019-10011-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 10/29/2019] [Indexed: 12/11/2022]
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13
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Yang J, Zhu Y, Tse AKW, Zhou X, Chen Y, Tse YC, Wong KMC, Ho CY. Synthesis and study of Au(iii)-indolizine derivatives: turn-on luminescence by photo-induced controlled release. Chem Commun (Camb) 2019; 55:4471-4474. [PMID: 30839955 DOI: 10.1039/c8cc10177a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The photo- and structural properties of a series of Au(iii) indolizine complexes were determined. Controlled release of halogenated indolizine derivatives from the corresponding Au(iii) complexes was achieved by photoinduced C-X bond formation, which provided turn-on luminescence with an increase in emission intensity of up to 67 times.
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Affiliation(s)
- Jie Yang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
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14
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Multicomponent domino protocol for the stereoselective synthesis of novel pyrrolo[3,2-c]quinolinone hybrid heterocycles. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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15
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Janardhanan JC, James K, Puthuvakkal A, Bhaskaran RP, Suresh CH, Praveen VK, Manoj N, Babu BP. Synthesis of hybrid polycycles containing fused hydroxy benzofuran and 1H-indazoles via a domino cyclization reaction. NEW J CHEM 2019. [DOI: 10.1039/c9nj01991j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A trifluoroacetic acid mediated [3+2] annulation reaction between 5-hydroxy-1H-indazoles – generated in situ – and p-benzoquinones has been reported.
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Affiliation(s)
- Jith C. Janardhanan
- Department of Applied Chemistry
- Cochin University of Science and Technology (CUSAT)
- Cochin 682022
- India
| | - Kiran James
- Department of Applied Chemistry
- Cochin University of Science and Technology (CUSAT)
- Cochin 682022
- India
| | - Anisha Puthuvakkal
- Chemical Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Rasmi P. Bhaskaran
- Department of Chemistry
- National Institute of Technology Karnataka (NITK)
- Surathkal 575025
- India
| | - Cherumuttathu H. Suresh
- Chemical Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Vakayil K. Praveen
- Chemical Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Narayanapillai Manoj
- Department of Applied Chemistry
- Cochin University of Science and Technology (CUSAT)
- Cochin 682022
- India
| | - Beneesh P. Babu
- Department of Chemistry
- National Institute of Technology Karnataka (NITK)
- Surathkal 575025
- India
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16
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Stabilized azomethine ylides derived from indeno[1,2-b]quinoxalinones in [3+2] cycloaddition reactions with electrophilic alkenes. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2369-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Peng H, Luo W, Jiang H, Yin B. Tandem Achmatowicz Rearrangement and Acetalization of 1-[5-(Hydroxyalkyl)-furan-2-yl]-cyclobutanols Leading to Dispiroacetals and Subsequent Ring-Expansion to Form 6,7-Dihydrobenzofuran-4(5 H)-ones. J Org Chem 2018; 83:12869-12879. [PMID: 30240214 DOI: 10.1021/acs.joc.8b01765] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, we report a one-pot protocol for the synthesis of dispiroacetals 4 bearing a cyclobutane motif via tandem Achmatowicz rearrangement and acetalization of 1-[5-(hydroxyalkyl)-furan-2-yl]-cyclobutanols 3 with m-CPBA as the oxidant and AgSbF6 as an additive to promote the cyclization step in an aqueous medium. Dispiroacetals 4 could subsequently undergo Lewis acid-catalyzed ring expansion and skeletal rearrangement to afford 6,7-dihydro-5 H-benzofuran-4-ones 5.
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Affiliation(s)
- Hui Peng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P.R. China
| | - Wenkun Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P.R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P.R. China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P.R. China
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18
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Saravana Mani K, Murugesapandian B, Kaminsky W, Rajendran SP. Enantioselective approach towards the synthesis of spiro-indeno [1,2-b] quinoxaline pyrrolothiazoles as antioxidant and antiproliferative. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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Reddy MS, Chowhan LR, Satish Kumar N, Ramesh P, Mukkamala SB. An expedient regio and diastereoselective synthesis of novel spiropyrrolidinylindenoquinoxalines via 1,3-dipolar cycloaddition reaction. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.044] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Wen R, Cen L, Ma Y, Wang J, Zhu S. One-pot, five-component 1,3-dipolar cycloaddition: A facile synthesis of spiropyrrolidine and spiropyrrolizidine derivatives. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Stereoselective green synthesis and molecular structures of highly functionalized spirooxindole-pyrrolidine hybrids – A combined experimental and theoretical investigation. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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22
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Mali PR, Shirsat PK, Khomane N, Nayak L, Nanubolu JB, Meshram HM. 1,3-Dipolar Cycloaddition Reactions for the Synthesis of Novel Oxindole Derivatives and Their Cytotoxic Properties. ACS COMBINATORIAL SCIENCE 2017; 19:633-639. [PMID: 28816439 DOI: 10.1021/acscombsci.7b00044] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The multicomponent reaction between isatin, amino acid, but-2-ynedioates, and phenacyl bromide has been developed using microwave irradiation under catalyst and base-free conditions in aqueous medium. This synthetic protocol is useful for the synthesis of various functionalized spirooxindole derivatives. This MCR exhibits a broad substrate scope with excellent yields and shorter reaction time. Additionally the synthesized spirooxindole derivatives were evaluated for their anticancer activity against three human cancer cell lines: MCF-7 (breast), A549 (lung), and HeLa cervical. Most of the compounds showed moderate to potent cytotoxic activity against the tested cell lines.
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Affiliation(s)
- Prakash R. Mali
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
| | - Prashishkumar K. Shirsat
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
| | - Navnath Khomane
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
| | - Lakshama Nayak
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007, India
| | - Jagadeesh Babu Nanubolu
- Laboratory
of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India
| | - H. M. Meshram
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007, India
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