1
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Morita I, Ward TR. Recent advances in the design and optimization of artificial metalloenzymes. Curr Opin Chem Biol 2024; 81:102508. [PMID: 39098211 DOI: 10.1016/j.cbpa.2024.102508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/27/2024] [Accepted: 07/15/2024] [Indexed: 08/06/2024]
Abstract
Embedding a catalytically competent transition metal into a protein scaffold affords an artificial metalloenzyme (ArM). Such hybrid catalysts display features that are reminiscent of both homogeneous and enzymatic catalysts. Pioneered by Whitesides and Kaiser in the late 1970s, this field of ArMs has expanded over the past two decades, marked by ever-increasing diversity in reaction types, cofactors, and protein scaffolds. Recent noteworthy developments include i) the use of earth-abundant metal cofactors, ii) concurrent cascade reactions, iii) synergistic catalysis, and iv) in vivo catalysis. Thanks to significant progress in computational protein design, ArMs based on de novo-designed proteins and tailored chimeric proteins promise a bright future for this exciting field.
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Affiliation(s)
- Iori Morita
- Department of Chemistry, University of Basel, Basel CH-4058, Switzerland
| | - Thomas R Ward
- Department of Chemistry, University of Basel, Basel CH-4058, Switzerland.
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2
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Shi SH, Yao YF, He J, Li HY, Han SJ, Zhang LL, Zhao Y. Metal-free sulfonylation of quinoxalinones to access 2-sulfonyl-oxylated quinoxalines via oxidative O-S cross coupling. Org Biomol Chem 2023; 21:1903-1909. [PMID: 36757292 DOI: 10.1039/d2ob02304k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
The C2 sulfonylation of quinoxalinones via a metal-free oxidative S-O cross-coupling strategy for synthesizing 2-sulfonyloxylated quinoxalines is established. It effectively solved the long-standing problems in the C2 transformation of quinoxalinones via a metal-free oxidative O-S coupling strategy. Compared with the traditional C2 transformed quinoxalinones-C2 chlorination method, this protocol is mild, facile, and environmentally friendly and exhibits good atomic economy and excellent functional group tolerance. Moreover, the utility of this methodology and the sulfonyloxyl handles was demonstrated through the synthesis of 2-substituted quinoxaline-based bioactive molecules.
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Affiliation(s)
- Shi-Hui Shi
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Yi-Fan Yao
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Jiao He
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Hao-Yu Li
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Shao-Jie Han
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Le-Le Zhang
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Yu Zhao
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
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3
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Ravindar L, Hasbullah SA, Hassan NI, Qin HL. Cross‐Coupling of C‐H and N‐H Bonds: a Hydrogen Evolution Strategy for the Construction of C‐N Bonds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200596] [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)
- Lekkala Ravindar
- Universiti Kebangsaan Malaysia Fakulti Teknologi dan Sains Maklumat Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Siti Aishah Hasbullah
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Nurul Izzaty Hassan
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Hua-Li Qin
- Wuhan University of Technology School of Chemistry 430070 Hubei CHINA
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4
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Wang Q, Zhu B, Zhang X, Shi G, Liu J, Xu Q. Direct construction of quinoxaline derivatives from vicinal diols and o‐nitroanilines via NaOH‐mediated intermolecular cascade redox and annulation reactions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qi Wang
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Boran Zhu
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Xiaolan Zhang
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Guojun Shi
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Jianping Liu
- Wenzhou University College of Chemistry and Materials Engineering 325035 Wenzhou CHINA
| | - Qing Xu
- Wenzhou University College of Chemistry and Materials Engineering Wenzhou University Town 325035 Wenzhou CHINA
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5
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Shi SH, Wei J, Liang CM, Bai H, Zhu HT, Zhang Y, Fu F. Electro-oxidation induced O–S cross-coupling of quinoxalinones with sodium sulfinates for synthesizing 2-sulfonyloxylated quinoxalines. Chem Commun (Camb) 2022; 58:12357-12360. [DOI: 10.1039/d2cc04524a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novel C2–O sulfonylation of quinoxalinones via electro-oxidation induced O–S coupling strategy under mild conditions was reported.
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Affiliation(s)
- Shi-Hui Shi
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, Shaanxi, China
| | - Jian Wei
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Chun-Miao Liang
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Huan Bai
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, Shaanxi, China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Yantu Zhang
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, Shaanxi, China
| | - Feng Fu
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, Shaanxi, China
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6
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Basu S, Chatterjee S, Bhaumik A, Mukhopadhyay C. Ultrasound‐promoted novel route to triazabenzo[b]cyclopenta[lm]fluorenes: An efficient NiFe
2
O
4
@SiO
2
–SO
3
H nanocatalyst‐assisted green synthesis. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Soumyadip Basu
- Department of Chemistry University of Calcutta Kolkata India
| | - Sauvik Chatterjee
- Department of Materials Science Indian Association for the Cultivation of Science Kolkata India
| | - Asim Bhaumik
- Department of Materials Science Indian Association for the Cultivation of Science Kolkata India
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7
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Jenifer VR, Muthuvel P, Das TM. Rational Design of Heterocyclic Moieties Incorporated in [1,2,3]Sugar‐Triazole Derivatives for Antioxidant Studies. ChemistrySelect 2021. [DOI: 10.1002/slct.202102516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- V. Rabecca Jenifer
- Department of Chemistry School of Basic and Applied Sciences Central University of Tamil Nadu (CUTN) Thiruvarur 610 005 INDIA
| | - Panneerselvam Muthuvel
- Department of Organic Chemistry University of Madras, Guindy Campus Chennai 600 025 INDIA
| | - Thangamuthu Mohan Das
- Department of Chemistry School of Basic and Applied Sciences Central University of Tamil Nadu (CUTN) Thiruvarur 610 005 INDIA
- Department of Organic Chemistry University of Madras, Guindy Campus Chennai 600 025 INDIA
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8
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Gutiérrez S, Tomás‐Gamasa M, Mascareñas JL. Exporting Metal‐Carbene Chemistry to Live Mammalian Cells: Copper‐Catalyzed Intracellular Synthesis of Quinoxalines Enabled by N−H Carbene Insertions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sara Gutiérrez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15705 Santiago de Compostela Spain
| | - María Tomás‐Gamasa
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15705 Santiago de Compostela Spain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15705 Santiago de Compostela Spain
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9
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Gutiérrez S, Tomás‐Gamasa M, Mascareñas JL. Exporting Metal-Carbene Chemistry to Live Mammalian Cells: Copper-Catalyzed Intracellular Synthesis of Quinoxalines Enabled by N-H Carbene Insertions. Angew Chem Int Ed Engl 2021; 60:22017-22025. [PMID: 34390304 PMCID: PMC8518842 DOI: 10.1002/anie.202108899] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Indexed: 12/17/2022]
Abstract
Implementing catalytic organometallic transformations in living settings can offer unprecedented opportunities in chemical biology and medicine. Unfortunately, the number of biocompatible reactions so far discovered is very limited, and essentially restricted to uncaging processes. Here, we demonstrate the viability of performing metal carbene transfer reactions in live mammalian cells. In particular, we show that copper (II) catalysts can promote the intracellular annulation of alpha-keto diazocarbenes with ortho-amino arylamines, in a process that is initiated by an N-H carbene insertion. The potential of this transformation is underscored by the in cellulo synthesis of a product that alters mitochondrial functions, and by demonstrating cell selective biological responses using targeted copper catalysts. Considering the wide reactivity spectrum of metal carbenes, this work opens the door to significantly expanding the repertoire of life-compatible abiotic reactions.
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Affiliation(s)
- Sara Gutiérrez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15705Santiagode CompostelaSpain
| | - María Tomás‐Gamasa
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15705Santiagode CompostelaSpain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15705Santiagode CompostelaSpain
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10
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DFT/electronic scale, MD simulation and evaluation of 6-methyl-2-(p-tolyl)-1,4-dihydroquinoxaline as a potential corrosion inhibition. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116539] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Borrego-Muñoz P, Ospina F, Quiroga D. A Compendium of the Most Promising Synthesized Organic Compounds against Several Fusarium oxysporum Species: Synthesis, Antifungal Activity, and Perspectives. Molecules 2021; 26:3997. [PMID: 34208916 PMCID: PMC8271819 DOI: 10.3390/molecules26133997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/25/2021] [Accepted: 06/27/2021] [Indexed: 11/17/2022] Open
Abstract
Vascular wilt caused by F. oxysporum (FOX) is one of the main limitations of producing several agricultural products worldwide, causing economic losses between 40% and 100%. Various methods have been developed to control this phytopathogen, such as the cultural, biological, and chemical controls, the latter being the most widely used in the agricultural sector. The treatment of this fungus through systemic fungicides, although practical, brings problems because the agrochemical agents used have shown mutagenic effects on the fungus, increasing the pathogen's resistance. The design and the synthesis of novel synthetic antifungal agents used against FOX have been broadly studied in recent years. This review article presents a compendium of the synthetic methodologies during the last ten years as promissory, which can be used to afford novel and potential agrochemical agents. The revision is addressed from the structural core of the most active synthetic compounds against FOX. The synthetic methodologies implemented strategies based on cyclo condensation reactions, radical cyclization, electrocyclic closures, and carbon-carbon couplings by metal-organic catalysis. This revision contributes significantly to the organic chemistry, supplying novel alternatives for the use of more effective agrochemical agents against F. oxysporum.
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Affiliation(s)
| | | | - Diego Quiroga
- Bioorganic Chemistry Laboratory, Facultad de Ciencias Básicas y Aplicadas, Campus Nueva Granada, Universidad Militar, Nueva Granada, Cajicá 250247, Colombia; (P.B.-M.); (F.O.)
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12
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Ouakki M, Galai M, Benzekri Z, Verma C, Ech-chihbi E, Kaya S, Boukhris S, Ebenso EE, Touhami ME, Cherkaoui M. Insights into corrosion inhibition mechanism of mild steel in 1 M HCl solution by quinoxaline derivatives: electrochemical, SEM/EDAX, UV-visible, FT-IR and theoretical approaches. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125810] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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13
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Li B, Tayebee R, Esmaeili E, Namaghi MS, Maleki B. Selective photocatalytic oxidation of aromatic alcohols to aldehydes with air by magnetic WO 3ZnO/Fe 3O 4. In situ photochemical synthesis of 2-substituted benzimidazoles. RSC Adv 2020; 10:40725-40738. [PMID: 35519184 PMCID: PMC9057692 DOI: 10.1039/d0ra08403d] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 10/13/2020] [Indexed: 11/21/2022] Open
Abstract
Recently, visible light-driven organic photochemical synthesis has been a pioneering field of interest from academic and industrial associations due to its unique features of green and sustainable chemistry. Herein, WO3ZnO/Fe3O4 was synthesized, characterized, and used as an efficient magnetic photocatalyst in the preparation of a range of 2-substituted benzimidazoles via the condensation of benzyl alcohol and o-phenylenediamine in ethanol at room temperature for the first time. The key feature of this work is focused on the in situ photocatalytic oxidation of benzyl alcohols to benzaldehydes under atmospheric air and in the absence of any further oxidant. This new heterogeneous nanophotocatalyst was characterized via XRD, FT-IR, VSM and SEM. Short reaction time, cost-effectiveness, broad substrate scope, easy work-up by an external magnet, and excellent product yield are the major advantages of the present methodology. A number of effective experimental parameters were also fully investigated to clear broadness and generality of the protocol.
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Affiliation(s)
- Bozhi Li
- Department of Food Science and Engineering, Jinzhou Medical University Jinzhou China
| | - Reza Tayebee
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
| | - Effat Esmaeili
- Department of Chemistry, Payame Noor University (PNU) Tehran 19395-4697 Iran
| | - Mina S Namaghi
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
| | - Behrooz Maleki
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
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14
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Aksenov NA, Aksenov AV, Kirilov NK, Arutiunov NA, Aksenov DA, Maslivetc V, Zhao Z, Du L, Rubin M, Kornienko A. Nitroalkanes as electrophiles: synthesis of triazole-fused heterocycles with neuroblastoma differentiation activity. Org Biomol Chem 2020; 18:6651-6664. [PMID: 32813002 PMCID: PMC7857362 DOI: 10.1039/d0ob01007c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We discovered a reaction of nitroalkanes with 2-hydrazinylquinolines, 2-hydrazinylpyridines and bis-2,4-dihydrazinylpyrimidines in polyphosphoric acid (PPA) affording 1,2,4-triazolo[4,3-a]quinolines, 1,2,4-triazolo[4,3-a]pyridines and bis[1,2,4]triazolo[4,3-a:4',3'-c]pyrimidines, respectively. The reaction expands the scope of heterocyclic annulations involving phosphorylated nitronates, believed to be the electrophilic intermediates formed from nitroalkanes in PPA. Several of the synthesized triazoles showed promising anticancer activity by inducing differentiation in neuroblastoma cancer cells. Due to the urgent need for novel differentiation agents for neuroblastoma therapy, this finding warrants further evaluation of this class of compounds against neuroblastoma.
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Affiliation(s)
- Nicolai A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation
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15
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A green solid acid catalyst 12-tungstophosphoric acid H3[PW12O40] supported on g-C3N4 for synthesis of quinoxalines. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04200-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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16
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Jiao Y, Preston S, Hofmann A, Taki A, Baell J, Chang BCH, Jabbar A, Gasser RB. A perspective on the discovery of selected compounds with anthelmintic activity against the barber's pole worm-Where to from here? ADVANCES IN PARASITOLOGY 2020; 108:1-45. [PMID: 32291083 DOI: 10.1016/bs.apar.2019.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Parasitic roundworms (nematodes) cause substantial morbidity and mortality in animals worldwide. Anthelmintic treatment is central to controlling these worms, but widespread resistance to most of the commercially available anthelmintics for veterinary and agricultural use is compromising control, such that there is an urgency to discover new and effective drugs. The purpose of this article is to review information on parasitic nematodes, the treatment and control of parasitic nematode infections and aspects of discovering new anthelmintics in the context of anthelmintic resistance problems, and then to discuss some progress that our group has made in identifying selected compounds with activity against nematodes. The focus of our recent work has been on discovering new chemical entities and known drugs with anthelmintic activities against Haemonchus contortus as well as other socioeconomically important parasitic nematodes for subsequent development. Using whole worm-based phenotypic assays, we have been screening compound collections obtained via product-development-partnerships and/or collaborators, and active compounds have been assessed for their potential as anthelmintic candidates. Following the screening of 15,333 chemicals from five distinct compound collections against H. contortus, we have discovered one new chemical entity (designated SN00797439), two human kinase inhibitors (SNS-032 and AG-1295), 14 tetrahydroquinoxaline analogues, one insecticide (tolfenpyrad) and two tolfenpyrad (pyrazole-5-carboxamide) derivatives (a-15 and a-17) with anthelmintic activity in vitro. Some of these 20 'hit' compounds have selectivity against H. contortus in vitro when compared to particular human cell lines. In our opinion, some of these compounds could represent starting points for 'lead' development. Accordingly, the next research steps to be pursued include: (i) chemical optimisation of representative chemicals via structure-activity relationship (SAR) evaluations; (ii) assessment of the breadth of spectrum of anthelmintic activity on a range of other parasitic nematodes, such as strongyloids, ascaridoids, enoplids and filarioids; (iii) detailed investigations of the absorption, distribution, metabolism, excretion and toxicity (ADMET) of optimised chemicals with broad nematocidal or nematostatic activity; and (iv) establishment of the modes of action of lead candidates.
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Affiliation(s)
- Yaqing Jiao
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Sarah Preston
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia; Faculty of Science and Technology, Federation University, Ballarat, VIC, Australia
| | - Andreas Hofmann
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Aya Taki
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Jonathan Baell
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Bill C H Chang
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Abdul Jabbar
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia.
| | - Robin B Gasser
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia.
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17
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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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18
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My journey from tyrosine phosphorylation inhibitors to targeted immune therapy as strategies to combat cancer. Proc Natl Acad Sci U S A 2019; 116:11579-11586. [PMID: 31076554 DOI: 10.1073/pnas.1816012116] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Since the 1980s there has been a drive toward personalized targeted therapy for cancer. "Targeted cancer therapy" originally focused on inhibiting essential tumor survival factors, primarily protein tyrosine kinases. The complexity and rapid mutability of tumors, however, enable them to develop resistance to tyrosine kinase inhibitors (TKIs), even when these are multitargeted or applied in combination. This has led to the development of targeted cancer immunotherapy, to enhance immune surveillance against the tumor. In this paper, we provide a personal view of the development of targeted therapy, from TKIs to targeted immunotherapy.
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19
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Azizian J, Karimi AR, Dastkhan R, Mohammadi AA, Mohammadizadeh MR. One-pot highly diastereoselective synthesis of some novel spiro pyrrolizidines via 1,3-dipolar cycloaddition reaction of azomethine ylide. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/0308234041639872] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Indenoquinoxaline-11-one derivatives react with proline and N-aryl maleimides via decarboxylative azomethine ylide formation and subsequent 1,3-dipolar cycloaddition involving an exo- transition state to give new heterocyclic adducts in 71–94% yields.
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Affiliation(s)
- Javad Azizian
- Department of Chemistry, Faculty of Science, Shahid Beheshti University, PO Box 19395-4716, Tehran, Iran
| | - Ali Reza Karimi
- Department of Chemistry, Faculty of Science, Shahid Beheshti University, PO Box 19395-4716, Tehran, Iran
| | - R. Dastkhan
- Department of Chemistry, Faculty of Science, Shahid Beheshti University, PO Box 19395-4716, Tehran, Iran
| | - Ali A. Mohammadi
- Department of Chemistry, Faculty of Science, Shahid Beheshti University, PO Box 19395-4716, Tehran, Iran
| | - Mohammad R. Mohammadizadeh
- Department of Chemistry, Faculty of Science, Shahid Beheshti University, PO Box 19395-4716, Tehran, Iran
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20
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Singh R, Ahmad Ganaie S, Singh A, Chaudhary A. Carbon-SO 3H catalyzed expedient synthesis of new spiro-[indeno[1,2- b]quinoxaline-[11,2′]-thiazolidine]-4′-ones as biologically important scaffold. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2018.1542003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ruby Singh
- Department of Chemistry, School of Basic Sciences, Jaipur National University , Jaipur , Rajasthan , India
| | - Shakeel Ahmad Ganaie
- Department of Chemistry, School of Basic Sciences, Jaipur National University , Jaipur , Rajasthan , India
| | - Aakash Singh
- Department of Chemistry, School of Basic Sciences, Jaipur National University , Jaipur , Rajasthan , India
| | - Archana Chaudhary
- Discipline of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore , Indore , India
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Guan XY, Tang M, Liu ZQ, Hu W. A highly diastereoselective [5+1] annulation to 2,2,3-trisubstituted tetrahydroquinoxalines via intramolecular Mannich-type trapping of ammonium ylides. Chem Commun (Camb) 2019; 55:9809-9812. [DOI: 10.1039/c9cc04890a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly diastereoselective [5+1] annulation to 2,2,3-trisubstituted tetrahydroquinoxalines was developed by us.
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Affiliation(s)
- Xiao-Yu Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Min Tang
- College of Chemistry and Pharmaceutical Engineering
- ChongQing Industry Polytechnic College
- Chongqing, 401120
- China
| | - Zhang-Qin Liu
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - WenHao Hu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
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22
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Jiao Y, Preston S, Garcia-Bustos JF, Baell JB, Ventura S, Le T, McNamara N, Nguyen N, Botteon A, Skinner C, Danne J, Ellis S, Koehler AV, Wang T, Chang BCH, Hofmann A, Jabbar A, Gasser RB. Tetrahydroquinoxalines induce a lethal evisceration phenotype in Haemonchus contortus in vitro. INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE 2018; 9:59-71. [PMID: 30690282 PMCID: PMC6357688 DOI: 10.1016/j.ijpddr.2018.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/11/2018] [Accepted: 12/29/2018] [Indexed: 12/12/2022]
Abstract
In the present study, the anthelmintic activity of a human tyrosine kinase inhibitor, AG-1295, and 14 related tetrahydroquinoxaline analogues against Haemonchus contortus was explored. These compounds were screened against parasitic larvae - exsheathed third-stage (xL3) and fourth-stage (L4) - using a whole-organism screening assay. All compounds were shown to have inhibitory effects on larval motility, development and growth, and induced evisceration through the excretory pore in xL3s. The estimated IC50 values ranged from 3.5 to 52.0 μM for inhibition of larval motility or development. Cytotoxicity IC50 against human MCF10A cells was generally higher than 50 μM. Microscopic studies revealed that this eviscerated (Evi) phenotype occurs rapidly (<20 min) and relates to a protrusion of internal tissues and organs (evisceration) through the excretory pore in xL3s; severe pathological damage in L4s as well as a suppression of larval growth in both stages were also observed. Using a relatively low concentration (12.5 μM) of compound m10, it was established that the inhibitor has to be present for a relatively short time (between 30 h and 42 h) during in vitro development from xL3 to L4, to induce the Evi phenotype. Increasing external osmotic pressure prevented evisceration and moulting, and xL3s remained unaffected by the test compound. These results point to a mode of action involving a dysregulation of morphogenetic processes during a critical time-frame, in agreement with the expected behaviour of a tyrosine kinase inhibitor, and suggest potential for development of this compound class as nematocidal drugs. Tetrahydroquinoxalines kill Haemonchus contortus larvae in vitro. Compounds induce a lethal evisceration phenotype (Evi). The Evi phenotype is associated with the timing of ecdysis. These compounds might be developable as nematocidal drugs.
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Affiliation(s)
- Yaqing Jiao
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Sarah Preston
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia; Faculty of Science and Technology, Federation University, Ballarat, Victoria, Australia
| | - Jose F Garcia-Bustos
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Jonathan B Baell
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia.
| | - Sabatino Ventura
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Thuy Le
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Nicole McNamara
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Nghi Nguyen
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Antony Botteon
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Cameron Skinner
- Centre for Advanced Histology and Microscopy, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Victoria, Australia
| | - Jill Danne
- Centre for Advanced Histology and Microscopy, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Victoria, Australia
| | - Sarah Ellis
- Centre for Advanced Histology and Microscopy, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Victoria, Australia
| | - Anson V Koehler
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Tao Wang
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Bill C H Chang
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia; Yourgene Bioscience, Taipei, Taiwan
| | - Andreas Hofmann
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland, Australia
| | - Abdul Jabbar
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
| | - Robin B Gasser
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
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23
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Muthuselvi C, Athimoolam S, Srinivasan N, Ravikumar B, Pandiarajan S, Krishnakumar RV. Ethyl 6′-cyano-7′-phenyl-1′,6′,7′,7a'-tetrahydro-3′ H-spiro[indeno[1,2- b]quinoxaline-11,5′-pyrrolo[1,2- c]thiazole-6′-carboxylate. IUCRDATA 2018. [DOI: 10.1107/s2414314618012865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In the title compound, C22H22ClN4O2S, the angle between the mean planes of the indene ring and the quinoxaline ring system is 3.93 (11)°. The five-membered indene and thiazole rings both adopt envelope conformations while the pyrrole ring adopts a twisted conformation. The two acceptor O atoms form a chelated three-centred hydrogen bond with a phenyl C atom.
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24
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Sukanya P, Venkata Ramana Reddy C. Synthesis, characterization and in vitro anticancer, DNA binding and cleavage studies of Mn (II), Co (II), Ni (II) and Cu (II) complexes of Schiff base ligand 3-(2-(1-(1H-benzimidazol-2-yl)ethylidene)hydrazinyl)quinoxalin-2(1H)-one and crystal structure o. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4526] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Panaganti Sukanya
- Department of Chemistry; Jawaharlal Nehru Technological University Hyderabad; Hyderabad India
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25
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Harsha KB, Rangappa S, Preetham HD, Swaroop TR, Gilandoust M, Rakesh KS, Rangappa KS. An Easy and Efficient Method for the Synthesis of Quinoxalines Using Recyclable and Heterogeneous Nanomagnetic‐Supported Acid Catalyst under Solvent‐Free Condition. ChemistrySelect 2018. [DOI: 10.1002/slct.201800053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kachigere B. Harsha
- Department of chemistrySarada Vilas post Graduation CentreUniversity of mysore Mysuru - 570004, Karnataka India
| | - Shobith Rangappa
- Adichunchangiri Institute for Molecular Medicine Nagamangala - 571448, Karnataka India
| | | | | | - Maryam Gilandoust
- DOS in ChemistryUniversity of Mysore, Manasagangothri Mysuru - 570006, Karnataka India
| | - Kodgahally S. Rakesh
- DOS in ChemistryUniversity of Mysore, Manasagangothri Mysuru - 570006, Karnataka India
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26
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Saidykhan A, Nazir Y, Martin WH, Gallagher RT, Bowen RD. Accelerated generation of (protonated) imines and quinoxalines by formation of C=N bonds in the microdroplets of a nebuliser. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2018; 24:3-11. [PMID: 29119838 DOI: 10.1177/1469066717737314] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ions corresponding to protonated imines appear in the positive ion electrospray mass spectra of mixtures of the parent aromatic aldehyde and arylamine. The formation of these imine products occurs readily in the electrospray source nebuliser, even without the application of a spray potential. This accelerated formation of C=N bonds in the nebuliser has been extended to encompass the preparation of quinoxalines from a range of substituted phenylenediamines and benzils. The condensation may be induced either under conventional positive ion electrospray conditions (to give the protonated quinoxalines) or when the nebuliser is disconnected from the mass spectrometer (to give the neutral quinoxaline). Ions corresponding to intermediate adducts formed by condensation of the phenylenediamine component with the protonated benzil are observed in many cases when the condensation occurs in the mass spectrometer. This finding supports an interpretation based on nucleophilic addition in droplets generated by the nebuliser.
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Affiliation(s)
- Amie Saidykhan
- 1 School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
| | - Yasser Nazir
- 1 School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
| | - William Hc Martin
- 1 School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
| | | | - Richard D Bowen
- 1 School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
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27
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Ahmed HEA, Ihmaid SK, Omar AM, Shehata AM, Rateb HS, Zayed MF, Ahmed S, Elaasser MM. Design, synthesis, molecular docking of new lipophilic acetamide derivatives affording potential anticancer and antimicrobial agents. Bioorg Chem 2017; 76:332-342. [PMID: 29227917 DOI: 10.1016/j.bioorg.2017.11.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 11/16/2022]
Abstract
Fifteen new substituted N-2-(2-oxo-3-phenylquinoxalin-1(2H)-yl) acetamides 5a-f, 6a-f, and 8a-c were synthesized by reacting ethyl 2-(2-oxo-3-phenylquinoxalin-1(2H)-yl)acetate with various primary amines including benzylamines, sulfonamides, and amino acids. The in vitro antimicrobial screening of the target compounds was screened to assess their antibacterial and antifungal activity. As a result, seven compounds namely; 5a, 5c, 5d, 6a, 6c, 8b and 8c showed a promising broad spectrum antibacterial activity against both Gram-positive and Gram-negative strains. Among these, the analogs 5c and 6d were nearly as equiactive as ciprofloxacin drug. Meanwhile, four compounds namely; 5c, 6a, 6f and 8c exhibited appreciable antifungal activity with MIC values range 33-40 mg/mL comparable with clotrimazole (MIC 25 mg/mL). In addition, the anticancer effects of the synthesized compounds were evaluated against three cancer lines. The data obtained revealed the benzylamines and sulpha derivatives were the most active compounds especially 5f and 6f ones. Further EGFR enzymatic investigation was carried out for these most active compounds 5f and 6f resulting in inhibitory activity by 1.89 and 2.05 µM respectively. Docking simulation was performed as a trial to study the mechanisms and binding modes of these compounds toward the enzyme target, EGFR protein kinase enzyme. The results revealed good compounds placement in the active sites and stable interactions similar to the co-crystallized reference ligand. Collectively, the analogs 5f and 6f could be further utilized and optimized as good cytotoxic agents.
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Affiliation(s)
- Hany E A Ahmed
- Pharmacognosy and Pharmaceutical Chemistry Department, College of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia; Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.
| | - Saleh K Ihmaid
- Pharmacognosy and Pharmaceutical Chemistry Department, College of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Abdelsattar M Omar
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt; Pharmaceutical Chemistry Department, Faculty of Pharmacy, King Abdul-Aziz University, Jeddah, Saudi Arabia
| | - Ahmed M Shehata
- Pharmacology and Toxicology Department, College of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Egypt
| | - Heba S Rateb
- Pharmacognosy and Pharmaceutical Chemistry Department, College of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia; Department of Pharmaceutical and Medicinal Chemistry, Pharmacy College, Misr University for Science and Technology, Cairo, Egypt
| | - Mohammed F Zayed
- Pharmacognosy and Pharmaceutical Chemistry Department, College of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia; Pharmaceutical Chemistry Department, Faculty of Pharmacy, King Abdul-Aziz University, Jeddah, Saudi Arabia
| | - Sahar Ahmed
- Pharmacognosy and Pharmaceutical Chemistry Department, College of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia; Medicinal Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Mahmoud M Elaasser
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt
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28
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Al-Aqtash RA, Zihlif MA, Hammad H, Nassar ZD, Meliti JA, Taha MO. Ligand-based computational modelling of platelet-derived growth factor beta receptor leading to new angiogenesis inhibitory leads. Comput Biol Chem 2017; 71:170-179. [PMID: 29101826 DOI: 10.1016/j.compbiolchem.2017.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/02/2017] [Accepted: 10/05/2017] [Indexed: 01/03/2023]
Abstract
Platelet derived growth factor beta receptor (PDGFR- β) plays an important role in angiogenesis. PDGFR-β expression is correlated with increased vascularity and maturation of blood vessels in cancer. Pharmacophore modeling and quantitative structure-activity relationship (QSAR) analysis were combined to explore the structural requirements for ligand-PDGFR-β recognition using 107 known PDGFR-β inhibitors. Genetic function algorithm (GFA) coupled to k nearest neighbor (kNN) and multiple linear regression (MLR) analysis were employed to generate predictive QSAR models based on optimal combinations of pharmacophores and physicochemical descriptors. The successful pharmacophores were complemented with exclusion spheres to optimize their receiver operating characteristic curve (ROC) profiles. The QSAR models and their associated pharmacophore hypotheses were validated by identification and experimental evaluation of new angiogenesis inhibitory leads retrieved from the National Cancer Institute (NCI) structural database. Two hits illustrated low micromolar IC50 values in two distinct anti-angiogenesis bioassays.
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Affiliation(s)
- Rua'a A Al-Aqtash
- Department of Pharmacology, Faculty of Medicine, University of Jordan, Amman, Jordan
| | - Malek A Zihlif
- Department of Pharmacology, Faculty of Medicine, University of Jordan, Amman, Jordan
| | - Hana Hammad
- Department of Biology, University of Jordan, Amman, Jordan
| | - Zeyad D Nassar
- School of Medicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Jehad Al Meliti
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Mutasem O Taha
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Jordan, Amman, Jordan.
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29
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Zhang Y, Luo M, Li Y, Wang H, Ren X, Qi C. Facile, eco-friendly, catalyst-free synthesis of polyfunctionalized quinoxalines. Mol Divers 2017; 22:183-189. [PMID: 28980110 DOI: 10.1007/s11030-017-9777-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 08/02/2017] [Indexed: 02/05/2023]
Abstract
A novel, facile and eco-friendly synthesis of quinoxalines from [Formula: see text] and 1,2-diamines was developed. An attractive feature of this protocol is that the desired products could be generated efficiently in water and without any catalyst, which is in accordance with the aim of green chemistry. A plausible mechanism has been proposed.
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Affiliation(s)
- Yaohong Zhang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Mengqiang Luo
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Yan Li
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Hai Wang
- School of Life Science, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Xiaorong Ren
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China.
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30
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Pogula J, Laha S, Likhar PR. Nano Copper(0)-Stabilized on Alumina: Efficient and Recyclable Heterogeneous Catalyst for Chemoselective Synthesis of 1,2-Disubstituted Benzimidazoles and Quinoxalines in Aqueous Medium. Catal Letters 2017. [DOI: 10.1007/s10562-017-2166-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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31
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Jiao Y, Preston S, Koehler AV, Stroehlein AJ, Chang BCH, Simpson KJ, Cowley KJ, Palmer MJ, Laleu B, Wells TNC, Jabbar A, Gasser RB. Screening of the 'Stasis Box' identifies two kinase inhibitors under pharmaceutical development with activity against Haemonchus contortus. Parasit Vectors 2017; 10:323. [PMID: 28679424 PMCID: PMC5499055 DOI: 10.1186/s13071-017-2246-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 06/13/2017] [Indexed: 01/06/2023] Open
Abstract
Background In partnership with the Medicines for Malaria Venture (MMV), we screened a collection (‘Stasis Box’) of 400 compounds (which have been in clinical development but have not been approved for illnesses other than neglected infectious diseases) for inhibitory activity against Haemonchus contortus, in order to attempt to repurpose some of the compounds to parasitic nematodes. Methods We assessed the inhibition of compounds on the motility and/or development of exsheathed third-stage (xL3s) and fourth-stage (L4) larvae of H. contortus using a whole-organism screening assay. Results In the primary screen, we identified compound MMV690767 (also known as SNS-032) that inhibited xL3 motility by ~70% at a concentration of 20 μM after 72 h as well as compound MMV079840 (also known as AG-1295), which induced a coiled xL3 phenotype, with ~50% inhibition on xL3 motility. Subsequently, we showed that SNS-032 (IC50 = 12.4 μM) and AG-1295 (IC50 = 9.92 ± 1.86 μM) had a similar potency to inhibit xL3 motility. Although neither SNS-032 nor AG-1295 had a detectable inhibitory activity on L4 motility, both compounds inhibited L4 development (IC50 values = 41.24 μM and 7.75 ± 0.94 μM for SNS-032 and AG-1295, respectively). The assessment of the two compounds for toxic effects on normal human breast epithelial (MCF10A) cells revealed that AG-1295 had limited cytotoxicity (IC50 > 100 μM), whereas SNS-032 was quite toxic to the epithelial cells (IC50 = 1.27 μM). Conclusions Although the two kinase inhibitors, SNS-032 and AG-1295, had moderate inhibitory activity on the motility or development of xL3s or L4s of H. contortus in vitro, further work needs to be undertaken to chemically alter these entities to achieve the potency and selectivity required for them to become nematocidal or nematostatic candidates. Electronic supplementary material The online version of this article (doi:10.1186/s13071-017-2246-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yaqing Jiao
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Sarah Preston
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Anson V Koehler
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Andreas J Stroehlein
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Bill C H Chang
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kaylene J Simpson
- Victorian Centre for Functional Genomics, Peter MacCallum Cancer Centre, Parkville, VIC, Australia.,The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Karla J Cowley
- Victorian Centre for Functional Genomics, Peter MacCallum Cancer Centre, Parkville, VIC, Australia
| | - Michael J Palmer
- Medicines for Malaria Venture (MMV), Route de Pré-Bois 20, CH-1215, Geneva, Switzerland
| | - Benoît Laleu
- Medicines for Malaria Venture (MMV), Route de Pré-Bois 20, CH-1215, Geneva, Switzerland
| | - Timothy N C Wells
- Medicines for Malaria Venture (MMV), Route de Pré-Bois 20, CH-1215, Geneva, Switzerland
| | - Abdul Jabbar
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Robin B Gasser
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, 3010, Australia.
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Metal-free regioselective construction of diazabenzo[e]acephenanthrylene-1,2-dicarboxylates via a phosphine-mediated cycloadditon. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Han X, Lei T, Yang XL, Zhao LM, Chen B, Tung CH, Wu LZ. Aerobic oxidation of β-dicarbonyls into vicinal tricarbonyls by Cu(II) salts for one-pot synthesis of quinoxalines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Poddar R, Jain A, Kidwai M. Bis[(l)prolinate-N,O]Zn: A water-soluble and recycle catalyst for various organic transformations. J Adv Res 2017; 8:245-270. [PMID: 28289549 PMCID: PMC5338870 DOI: 10.1016/j.jare.2016.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/28/2016] [Accepted: 12/20/2016] [Indexed: 11/17/2022] Open
Abstract
Under the green chemistry perspective, bis[(l)prolinate-N,O]Zn (also called zinc-proline or Zn[(l)-pro]2) has proven its competence as a promising alternative in a plethora of applications such as catalyst or promoter. Owing to its biodegradable and non-toxic nature of bis[(l)prolinate-N,O]Zn, it is being actively investigated as a water soluble green catalyst for synthetic chemistry. Bis[(l)prolinate-N,O]Zn are readily utilized under mild conditions and have high selectivity and reactivity with broad range of substrate acceptance to make it better reaction medium for a wide variety of organic transformations. This Review summarizes the till date literature on its synthesis, characterization, and its catalytic role in various organic reactions.
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Affiliation(s)
- Roona Poddar
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Arti Jain
- Department of Chemistry, Daulat Ram College, University of Delhi, Delhi 110007, India
| | - Mazaahir Kidwai
- Department of Chemistry, University of Delhi, Delhi 110007, India
- Corresponding author. Fax: +91 1127666235.
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35
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Akondi AM, Mekala S, Kantam ML, Trivedi R, Raju Chowhan L, Das A. An expedient microwave assisted regio- and stereoselective synthesis of spiroquinoxaline pyrrolizine derivatives and their AChE inhibitory activity. NEW J CHEM 2017. [DOI: 10.1039/c6nj02869a] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report here an efficient protocol for the one-pot facile synthesis of spiro[indeno[1,2-b]quinoxaline-11,3′-pyrrolizine]heterocyclic scaffolds and their AChE inhibitory studies.
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Affiliation(s)
- Adinarayana Murthy Akondi
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
| | - Sowmya Mekala
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Mannepalli Lakshmi Kantam
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Institute of Chemical Technology
| | - Rajiv Trivedi
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
| | - L. Raju Chowhan
- School of Chemical Sciences
- Central University Gujarat
- Gandhinagar
- India
| | - Amitava Das
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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36
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Chandralekha K, Sureshbabu AR, Gavaskar D, Lakshmi S. Crystal structure of methyl 3'-benzamido-4'-(4-meth-oxy-phen-yl)-1'-methyl-spiro-[indeno-[1,2- b]quinoxaline-11,2'-pyrrolidine]-3'-carboxyl-ate. Acta Crystallogr E Crystallogr Commun 2016; 72:1257-1259. [PMID: 27920911 PMCID: PMC5120701 DOI: 10.1107/s2056989016012469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 08/02/2016] [Indexed: 11/18/2022]
Abstract
In the title compound, C35H30N4O3, the spiro C atom connects the five-membered pyrrolidine ring and the indeno-quinoxaline ring system. The pyrrolidine ring adopts a twist conformation. An intra-molecular N-H⋯N inter-action between the amino group and the pyrazine ring is observed. In the crystal, mol-ecules are linked by a pairs of C-H⋯O hydrogen bonds, forming inversion dimers.
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Affiliation(s)
- Kuppan Chandralekha
- Research Department of Physics, S. D. N. B. Vaishnav College for Women, Chromepet, Chennai 600 004, India
| | | | - Deivasigamani Gavaskar
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
| | - Srinivasakannan Lakshmi
- Research Department of Physics, S. D. N. B. Vaishnav College for Women, Chromepet, Chennai 600 004, India
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37
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Shitre PV, Harale RR, Sathe BR, Shingare MS. Silica nanosphere–graphene oxide (SiO2–GO) hybrid catalyzed facile synthesis of functionalized quinoxaline derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2667-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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El Newahie AMS, Ismail NSM, Abou El Ella DA, Abouzid KAM. Quinoxaline-Based Scaffolds Targeting Tyrosine Kinases and Their Potential Anticancer Activity. Arch Pharm (Weinheim) 2016; 349:309-26. [PMID: 27062086 DOI: 10.1002/ardp.201500468] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/06/2016] [Accepted: 03/11/2016] [Indexed: 12/31/2022]
Abstract
Quinoxaline derivatives, also called benzopyrazines, are an important class of heterocyclic compounds. Quinoxalines have drawn great attention due to their wide spectrum of biological activities. They are considered as an important basis for anticancer drugs due to their potential activity as protein kinase inhibitors. In this review, we focus on the chemistry of the quinoxaline derivatives, the strategies for their synthesis, their potential activities against various tyrosine kinases, and on the structure-activity relationship studies reported to date.
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Affiliation(s)
- Aliya M S El Newahie
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry, October University for Modern Science and Arts (MSA), Cairo, Egypt
| | - Nasser S M Ismail
- Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Department of Pharmaceutical Chemistry, Future University, Cairo, Egypt
| | - Dalal A Abou El Ella
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ain Shams University, Abbassia, Cairo, Egypt
| | - Khaled A M Abouzid
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ain Shams University, Abbassia, Cairo, Egypt
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39
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Yan J, Xu Y, Zhuang F, Tian J, Zhang G. Highly efficient synthesis of quinoxaline derivatives from 1,2-benzenediamine and $$\alpha $$ α -aminoxylated 1,3-dicarbonyl compounds. Mol Divers 2016; 20:567-73. [PMID: 26797715 DOI: 10.1007/s11030-016-9657-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/08/2016] [Indexed: 02/03/2023]
Affiliation(s)
- Jianwei Yan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, Henan, People's Republic of China.
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
| | - Yanhong Xu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Fangfang Zhuang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Jie Tian
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Guisheng Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, Henan, People's Republic of China.
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40
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Peralta-Cruz J, Díaz-Fernández M, Ávila-Castro A, Ortegón-Reyna D, Ariza-Castolo A. An experimental and theoretical study of intramolecular regioselective oxidations of 6-substituted 2,3-dimethylquinoxaline derivatives. NEW J CHEM 2016. [DOI: 10.1039/c5nj03282b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The long-range substituent effects on the Riley reaction mechanism were determined by NMR and DFT calculations.
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Affiliation(s)
- Javier Peralta-Cruz
- Departamento de Química Orgánica
- Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional
- 11340 Ciudad de Mexico
- Mexico
| | - Mónica Díaz-Fernández
- Departamento de Química Orgánica
- Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional
- 11340 Ciudad de Mexico
- Mexico
| | - Alberto Ávila-Castro
- Departamento de Química Orgánica
- Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional
- 11340 Ciudad de Mexico
- Mexico
| | - David Ortegón-Reyna
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
- Ciudad de Mexico
- Mexico
| | - Armando Ariza-Castolo
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
- Ciudad de Mexico
- Mexico
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41
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Abstract
The carbon–carbon (C–C) bond forms the ‘backbone’ of nearly every organic molecule, and lies at the heart of the chemical sciences! Let us explore designing of carbon–carbon frameworks at ambient conditions.
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis
- Department of Chemistry
- Visva-Bharati (a Central University)
- Santiniketan-731235
- India
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42
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Subba Reddy BV, Reddy BP, Reddy PVG, Siriwardena A. An efficient lactamisation/N-acyliminium Pictet–Spengler domino strategy for the diasteroselective synthesis of polyhydroxylated quinoxalinone, β-carboline and quinazolinone derivatives. Org Biomol Chem 2016; 14:4276-82. [DOI: 10.1039/c6ob00250a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A novel Pictet–Spengler cascade sequence has been developed. It involves a lactamisation/N-acyliminium key step and gives a diverse set of sugar-derived fused polycyclic heterocycles diastereoselectively and efficiently.
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Affiliation(s)
- B. V. Subba Reddy
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - B. P. Reddy
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
- Department of Chemistry
| | - P. V. G. Reddy
- Department of Chemistry
- Yogi Vemana University
- Kadapa
- India
| | - A. Siriwardena
- Laboratoire de Glycochimie
- des Antimicrobiens et des Agroressources
- UMR 7378 CNRS
- 80039 Amiens
- France
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43
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Yasuike S, Takada R, Matsumura M, Ukai Y, Yamada M, Murata Y, Kakusawa N. Synthesis of 2-Arylquinoxalines: Triarylstibane-Catalyzed Oxidative Cyclization of α-Hydroxy Ketones with 1,2-Diamines under Aerobic Conditions. HETEROCYCLES 2016. [DOI: 10.3987/com-15-s(t)3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Brahmachari G. Design of Organic Transformations at Ambient Conditions: Our Sincere Efforts to the Cause of Green Chemistry Practice. CHEM REC 2015; 16:98-123. [DOI: 10.1002/tcr.201500229] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University); Santiniketan 731 235 West Bengal India
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45
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Wu K, Huang Z, Qi X, Li Y, Zhang G, Liu C, Yi H, Meng L, Bunel EE, Miller JT, Pao CW, Lee JF, Lan Y, Lei A. Copper-catalyzed aerobic oxidative coupling: From ketone and diamine to pyrazine. SCIENCE ADVANCES 2015; 1:e1500656. [PMID: 26601302 PMCID: PMC4646816 DOI: 10.1126/sciadv.1500656] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 07/22/2015] [Indexed: 06/05/2023]
Abstract
Copper-catalyzed aerobic oxidative C-H/N-H coupling between simple ketones and diamines was developed toward the synthesis of a variety of pyrazines. Various substituted ketones were compatible for this transformation. Preliminary mechanistic investigations indicated that radical species were involved. X-ray absorption fine structure experiments elucidated that the Cu(II) species 5 coordinated by two N atoms at a distance of 2.04 Å and two O atoms at a shorter distance of 1.98 Å was a reactive one for this aerobic oxidative coupling reaction. Density functional theory calculations suggested that the intramolecular coupling of cationic radicals was favorable in this transformation.
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Affiliation(s)
- Kun Wu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Zhiliang Huang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Xiaotian Qi
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Yingzi Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Guanghui Zhang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Chao Liu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Hong Yi
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Lingkui Meng
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Emilio E. Bunel
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Jeffrey T. Miller
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, China
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46
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Unconventional Knoevenagel-type indoles: Synthesis and cell-based studies for the identification of pro-apoptotic agents. Eur J Med Chem 2015; 102:648-60. [DOI: 10.1016/j.ejmech.2015.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 07/22/2015] [Accepted: 08/04/2015] [Indexed: 02/02/2023]
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47
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Miyamaru S, Umezu K, Ito A, Shimizu M. Synthesis of Multisubstituted Dihydroquinoxaline Derivatives by TandemN-Alkylation and Addition Reactions of 3-Oxoquinoxaline-2-carboxylates. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500225] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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48
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Kumar K, Mudshinge SR, Goyal S, Gangar M, Nair VA. A catalyst free, one pot approach for the synthesis of quinoxaline derivatives via oxidative cyclisation of 1,2-diamines and phenacyl bromides. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.138] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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49
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Faizi MSH, Sharkina NO, Iskenderov TS. Crystal structure of 2-azaniumyl-3-bromo-6-oxo-5,6-dihydropyrido[1,2- a]quinoxalin-11-ium dibromide. Acta Crystallogr E Crystallogr Commun 2015; 71:o17-8. [PMID: 25705482 PMCID: PMC4331889 DOI: 10.1107/s2056989014026127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 11/27/2014] [Indexed: 11/25/2022]
Abstract
The title salt, C12H10BrN3O2+·2Br−, was synthesized from the reaction of N1,N4-bis(pyridin-2-ylmethylidene)benzene-1,4-diamine and bromine in a methanol solution. All non-H atoms of the 2-azaniumyl-3-bromo-6-oxo-5,6-dihydropyrido[1,2-a]quinoxalin-11-ium cation are nearly coplanar, the maximum deviation being 0.114 (4) Å. In the crystal, the cations and anions are linked through N—H⋯Br hydrogen bonds and weak C—H⋯Br interactions, forming a three-dimensional supramolecular architecture. A short Br⋯Br contact [3.3088 (9) Å] is observed in the crystal.
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50
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Hamzehloueian M, Sarrafi Y, Aghaei Z. An experimental and theoretical study on the regioselective synthesis of a new class of spiropyrrolothiazoles with quinoxaline motifs via a 1,3-dipolar cycloaddition reaction. An evaluation of DFT methods. RSC Adv 2015. [DOI: 10.1039/c5ra14071d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Evaluation of B3LYP/6-31G(d,p), wB97xD/6-31G(d,p) and M06-2X/6-31G(d,p) methods revealed the importance of π/π interactions in regio- and stereoselectivity of cycloaddition reactions.
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Affiliation(s)
| | - Yaghoub Sarrafi
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Mazandaran
- 47416 Babolsar
- Iran
| | - Zahra Aghaei
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Mazandaran
- 47416 Babolsar
- Iran
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