1
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Mahesha CK, Naharwal S, Kharat ND, Mandal SK, Sakhuja R. Regiodivergent Synthesis of Cinnoline-Fused Indazolones through Pd-Catalyzed Annulation of 1-Arylindazolones with Allenoates. J Org Chem 2022; 87:3701-3706. [DOI: 10.1021/acs.joc.1c02629] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - Sushma Naharwal
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan 333031, India
| | - Narendra Dinkar Kharat
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan 333031, India
| | - Sanjay K. Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, SAS Nagar, Manuali P.O., Mohali, Punjab 140306, India
| | - Rajeev Sakhuja
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan 333031, India
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2
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3
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Hu Z, Li L, Liu Z, Liu Z, Zhang D, Li K. Indole-Based Aza[n]helicenes (n=5, 6) with Violet-Blue Fluorescence and Two-Photon Absorption (TPA). Chempluschem 2020; 85:742-750. [PMID: 32329586 DOI: 10.1002/cplu.202000178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/25/2020] [Indexed: 12/16/2022]
Abstract
A series of indole-based helicenes, namely, 15-hexyl-15H-tetraphenyl[1,2-e]indole (HTPI), 14-hexyl-14H-benzo[4',5']thieno [2',3':7,8]naphtha[1,2-e]indole (HBTNI), 7-hexyl-7H-indolo[5,4-k] phenanthridine (HIPD) and 3-hexyl-3H-phenanthro[4,3-e]indole (HPI) were successfully synthesized by three- or four-step reactions. They exhibited good solubility and high thermal stability of Td =247, 388, 294 and 251 °C, respectively. These compounds emit violet-blue light with maximum emission peaks at 415, 397, 397 and 391 nm in hexane. Among them, HBTNI had excellent thermal stability, narrow and sharp emission peaks, and highest photoluminescence quantum yield (0.32). Thus, HBTNI was an ideal candidate for the violet-blue emitters of OLEDs. Furthermore, the four compounds had two-photon absorption and two-photon excited fluorescence. HTPI showed the maximum TPA with the TPA cross-section (δ) of 171.5 GM at 770 nm. They were rare examples of helicenes with both violet-blue emission and TPA.
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Affiliation(s)
- Zhenhao Hu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Li Li
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Zhi Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Zhiqiang Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Dingchao Zhang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Kunlun Li
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
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4
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Zayas B, Lebron V, Vélez C, Cox O. Novel NBQ-48 as marker of hypoxic cells in 2D and 3D colon cancer cells. JOURNAL OF CANCER PREVENTION & CURRENT RESEARCH 2020; 11:13-18. [PMID: 34765722 PMCID: PMC8580369 DOI: 10.15406/jcpcr.2020.11.00417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This study presents the applicability of a novel nitro-substituted heterocyclic compound NBQ48, member of the family of compounds identified as 3 nitrobenzazolo[3, 2-a] quinolinium chloride salts (NBQS) as a screening tool to identify hypoxic tumor cells. The applicability was tested on COLO 205 colon cancer cells 2D and 3D cultures treated with NBQ48 to assess the formation of a bio-reduction fluorescent metabolite under hypoxic conditions in contrast, to those under aerobic environment. Hypoxic environment was created applying a controlled hypoxic gas chamber. Prior to testing the applicability of NBQ48 as a hypoxic fluorescent marker, cytotoxic studies where performed to identify a low-toxicity dose at 24 hours under aerobic and hypoxic environments that would allow the bio-reduction process with little toxicity. The differences in fluorescence emission after treatment was measured by fluorometer and fluorescence microscopy. Results indicated that cell treatments up to 24 hours with NBQ48 under aerobic environment did not reach an IC50 dose in COLO205 cells, however under hypoxic environment the IC50 reached at 100μM. The significant fluorescence increment after 24 and 48 hrs in 2D and 3D cultures treated with NBQ48 (75uM) at hypoxic in contrast to aerobic environments clearly demonstrated the need of a low oxygen content for the bio-reduction of the parent NBQ48. This study confirms the applicability of NBQ48 as markers for hypoxia in metabolically active 2D and 3D cultures. This hydrophilic hypoxic marker could additionally aid researchers in testing hypoxia activated pro-drugs for therapeutic applications in cancer as well as on other diseases where cellular hypoxia is a significant risk factor.
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Affiliation(s)
- Beatriz Zayas
- School of Science, Technology and Environment, Ana G. Mendez University (UAGM), USA
| | - Vivian Lebron
- School of Science, Technology and Environment, Ana G. Mendez University (UAGM), USA
| | - Christian Vélez
- School of Science, Technology and Environment, Ana G. Mendez University (UAGM), USA
| | - Osvaldo Cox
- School of Science, Technology and Environment, Ana G. Mendez University (UAGM), USA
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5
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Sadek KU, Mekheimer RA, Abd-Elmonem M. Recent Developments in the Synthesis of Cinnoline Derivatives. MINI-REV ORG CHEM 2019. [DOI: 10.2174/1570193x15666180712124148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Crinnolines can serve as unique and versatile class of heterocycles especially in fields related
to synthetic and pharmaceutical chemistry owing to their potent biological activities. They possess diversity
of pharmaceutical activities as anticancer, antibacterial, anti-inflammatory, anti-allergic as well
as anti-hypertensive activities. Since the first synthesis of cinnoline by Richter (1883) numerous protocols
for their synthesis have been developed utilizing arenediazonium salts, aryl hydrazines and arylhydhydrazones
precursors. Recently metal catalyzed C-C and C-N bond formation reactions have
emerged as efficient tools for synthesis of cinnoline derivatives. This review aims to focus on the recent
synthetic routes used for the synthesis of cinnoline derivatives. An effort has been carried out to provide
an overview of practical methods for preparing cinnolines. Furthermore the reaction mechanisms have
been described in brief.
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Affiliation(s)
- Kamal Usef Sadek
- Chemistry Department, Faculty of Science, Minia University, Minia 61519, Egypt
| | | | - Mohamed Abd-Elmonem
- Chemistry Department, Faculty of Science, Minia University, Minia 61519, Egypt
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6
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Schaack C, Arrico L, Sidler E, Górecki M, Di Bari L, Diederich F. Helicene Monomers and Dimers: Chiral Chromophores Featuring Strong Circularly Polarized Luminescence. Chemistry 2019; 25:8003-8007. [DOI: 10.1002/chem.201901248] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/26/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Cédric Schaack
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
| | - Eric Sidler
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
| | - François Diederich
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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7
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Shen X, Gates KS. Enzyme-Activated Generation of Reactive Oxygen Species from Heterocyclic N-Oxides under Aerobic and Anaerobic Conditions and Its Relevance to Hypoxia-Selective Prodrugs. Chem Res Toxicol 2019; 32:348-361. [PMID: 30817135 DOI: 10.1021/acs.chemrestox.9b00036] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Enzymatic one-electron reduction of heterocyclic N-oxides can lead to the intracellular generation of reactive oxygen species via several different chemical pathways. These reactions may be relevant to hypoxia-selective anticancer drugs, antimicrobial agents, and unwanted toxicity of heterocylic nitrogen compounds.
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8
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Gupta R, Cabreros TA, Muller G, Bedekar AV. Enantiomerically Pure 5,13-Dicyano-9-oxa[7]helicene: Synthesis and Study. European J Org Chem 2018; 2018:5397-5405. [PMID: 30853851 PMCID: PMC6402497 DOI: 10.1002/ejoc.201800922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Indexed: 11/10/2022]
Abstract
Optically pure dicyano oxa[7]helicenes and helicene-like molecules have been prepared and investigated for their optical behavior. The isomers of the intermediate 4,4'-biphen-anthrene-3,3'-diol were resolved by physically separating their 1-menthyl carbonate derivatives. In this work a mild method was developed to cleave ArOMe in presence of a cyano group. The optical rotation of atropisomeric diol, helicenes-like compounds and the oxa[7]helicenes was observed to be in increasing order, while the molecules also showed good response to circularly polarized luminescence.
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Affiliation(s)
- Riddhi Gupta
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, INDIA
| | - Trevor A Cabreros
- Department of Chemistry, San José State University, One Washington Square, San José, California 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, One Washington Square, San José, California 95192-0101, USA
| | - Ashutosh V Bedekar
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, INDIA
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9
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Su L, Yu Z, Ren P, Luo Z, Hou W, Xu H. Ruthenium(ii)-catalyzed synthesis of indazolone-fused cinnolines via C-H coupling with diazo compounds. Org Biomol Chem 2018; 16:7236-7244. [PMID: 30255913 DOI: 10.1039/c8ob02071j] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A robust, efficient and scalable method for the synthesis of 12H-indazolo[2,1-a]cinnolin-12-ones was developed. Significantly, a less developed cationic complex [Ru(p-cymene)(MeCN)3(SbF6)2] was found to be effective for this transformation. In this reaction, a tandem pathway of C-H ruthenation, Ru(ii)-carbene formation, migratory insertion and condensation was involved. The results of a primary mechanistic study suggested that the C-H activation process might follow an electrophilic-type metalation/deprotonation mechanism.
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Affiliation(s)
- Lin Su
- College of Pharmaceutical Science, and Institute of Drug Development & Chemical Biology (IDD & CB), Zhejiang University of Technology, Hangzhou, 310014, China.
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10
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Bao L, Liu J, Xu L, Hu Z, Xu X. Divergent Synthesis of Quinoline Derivatives via [5+1] Annulation of 2-Isocyanochalcones with Nitroalkanes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800152] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Lan Bao
- Chemistry and Chemical Engineering College, Inner Mongolia Key Laboratory of Natural Chemistry and Synthesis of Functional Molecules; Inner Mongolia University for Nationalities; Tongliao 028043 People's Republic of China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Jinglin Liu
- Chemistry and Chemical Engineering College, Inner Mongolia Key Laboratory of Natural Chemistry and Synthesis of Functional Molecules; Inner Mongolia University for Nationalities; Tongliao 028043 People's Republic of China
| | - Liang Xu
- Chemistry and Chemical Engineering College, Inner Mongolia Key Laboratory of Natural Chemistry and Synthesis of Functional Molecules; Inner Mongolia University for Nationalities; Tongliao 028043 People's Republic of China
| | - Zhongyan Hu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Xianxiu Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
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11
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Shen X, Laber CH, Sarkar U, Galazzi F, Johnson KM, Mahieu NG, Hillebrand R, Fuchs-Knotts T, Barnes CL, Baker GA, Gates KS. Exploiting the Inherent Photophysical Properties of the Major Tirapazamine Metabolite in the Development of Profluorescent Substrates for Enzymes That Catalyze the Bioreductive Activation of Hypoxia-Selective Anticancer Prodrugs. J Org Chem 2018; 83:3126-3131. [DOI: 10.1021/acs.joc.7b03035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Ao X, Bright SA, Taylor NC, Elmes RBP. 2-Nitroimidazole based fluorescent probes for nitroreductase; monitoring reductive stress in cellulo. Org Biomol Chem 2017; 15:6104-6108. [PMID: 28715020 DOI: 10.1039/c7ob01406f] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Two 2-nitroimidazole-1,8-naphthalimide conjugates, 1 and 2, have been synthesised as fluorescence probes for the detection of reductive stress in HeLa cells. The 4-substituted derivative 1 was shown to act as a highly sensitive and selective substrate for nitroreductase where it exhibited a clear blue to green ratiometric fluorescence response visible to the naked eye. Moreover, biological studies demonstrated 1 could be activated in cellulo where the impact of reductive stress was easily monitored using confocal microscopy and flow cytommetry.
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Affiliation(s)
- X Ao
- Department of Chemistry, Maynooth University, National, University of Ireland, Maynooth, Co. Kildare, Ireland.
| | - S A Bright
- Trinity Biomedical Sciences Institute (TBSI), Trinity, College Dublin, Dublin 2, Ireland
| | - N C Taylor
- Trinity Biomedical Sciences Institute (TBSI), Trinity, College Dublin, Dublin 2, Ireland
| | - R B P Elmes
- Department of Chemistry, Maynooth University, National, University of Ireland, Maynooth, Co. Kildare, Ireland.
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13
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Wang Y, Yu F, Han X, Li M, Tong Y, Ding J, Hou H. From Surprising Solvothermal Reaction to Uncommon Zinc(II)-Catalyzed Aromatic C–H Activation Reaction for Direct Nitroquinoline Synthesis. Inorg Chem 2017; 56:5953-5958. [DOI: 10.1021/acs.inorgchem.7b00653] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yazhen Wang
- The
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Feihu Yu
- The
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Xiao Han
- The
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Ming Li
- The
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Yue Tong
- The
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Jie Ding
- The
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Hongwei Hou
- The
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
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14
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Bosson J, Labrador GM, Pascal S, Miannay FA, Yushchenko O, Li H, Bouffier L, Sojic N, Tovar RC, Muller G, Jacquemin D, Laurent AD, Le Guennic B, Vauthey E, Lacour J. Physicochemical and Electronic Properties of Cationic [6]Helicenes: from Chemical and Electrochemical Stabilities to Far-Red (Polarized) Luminescence. Chemistry 2016; 22:18394-18403. [PMID: 27885721 PMCID: PMC5396952 DOI: 10.1002/chem.201603591] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Indexed: 11/06/2022]
Abstract
The physicochemical properties of cationic dioxa (1), azaoxa (2), and diaza (3) [6]helicenes demonstrate a much higher chemical stability of the diaza adduct 3 (pKR+ =20.4, Ered1/2 =-0.72 V) compared to its azaoxa 2 (pKR+ =15.2, Ered1/2 =-0.45 V) and dioxa 1 (pKR+ =8.8, Ered1/2 =-0.12 V) analogues. The fluorescence of these cationic chromophores is established, and ranges from the orange to the far-red regions. From 1 to 3, a bathochromic shift of the lowest energy transitions (up to 614 nm in acetonitrile) and an enhancement of the fluorescence quantum yields and lifetimes (up to 31 % and 9.8 ns, respectively, at 658 nm) are observed. The triplet quantum yields and circularly polarized luminescence are also reported. Finally, fine tuning of the optical properties of the diaza [6]helicene core is achieved through selective and orthogonal post-functionalization reactions (12 examples, compounds 4-15). The electronic absorption is modulated from the orange to the far-red spectral range (560-731 nm), and fluorescence is observed from 591 to 755 nm with enhanced quantum efficiency up to 70 % (619 nm). The influence of the peripheral auxochrome substituents is rationalized by first-principles calculations.
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Affiliation(s)
- Johann Bosson
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet, 30.1211, Geneva 4, Switzerland
| | - Geraldine M Labrador
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet, 30.1211, Geneva 4, Switzerland
| | - Simon Pascal
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet, 30.1211, Geneva 4, Switzerland
| | - François-Alexandre Miannay
- Department of Physical Chemistry, University of Geneva, Quai Ernest Ansermet, 30.1211, Geneva 4, Switzerland
| | - Oleksandr Yushchenko
- Department of Physical Chemistry, University of Geneva, Quai Ernest Ansermet, 30.1211, Geneva 4, Switzerland
| | - Haidong Li
- ISM, UMR 5255, University of Bordeaux and CNRS, 33400, Talence, France
| | - Laurent Bouffier
- ISM, UMR 5255, University of Bordeaux and CNRS, 33400, Talence, France
| | - Neso Sojic
- ISM, UMR 5255, University of Bordeaux and CNRS, 33400, Talence, France
| | - Roberto C Tovar
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA, 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA, 95192-0101, USA
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2, rue de la Houssinière, 44322, Nantes, France), Institut Universitaire de France, 1, rue Descartes, 75005 Paris Cedex 05 (France
| | - Adèle D Laurent
- CEISAM, UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2, rue de la Houssinière, 44322, Nantes, France), Institut Universitaire de France, 1, rue Descartes, 75005 Paris Cedex 05 (France
| | - Boris Le Guennic
- Sciences Chimiques de Rennes UMR 6226, CNRS - Université de Rennes 1, Campus de Beaulieu, 35042, Rennes, France
| | - Eric Vauthey
- Department of Physical Chemistry, University of Geneva, Quai Ernest Ansermet, 30.1211, Geneva 4, Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet, 30.1211, Geneva 4, Switzerland
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15
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He Y, Zhao N, Qiu L, Zhang X, Fan X. Regio- and Chemoselective Mono- and Bisnitration of 8-Amino quinoline Amides with Fe(NO3)3·9H2O as Promoter and Nitro Source. Org Lett 2016; 18:6054-6057. [DOI: 10.1021/acs.orglett.6b02998] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yan He
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ningning Zhao
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Liqi Qiu
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
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16
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Upadhyay GM, Talele HR, Bedekar AV. Synthesis and Photophysical Properties of Aza[n]helicenes. J Org Chem 2016; 81:7751-9. [DOI: 10.1021/acs.joc.6b01395] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Gourav M. Upadhyay
- Department of Chemistry,
Faculty of Science, M. S. University of Baroda, Vadodara 390 002, India
| | - Harish R. Talele
- Department of Chemistry,
Faculty of Science, M. S. University of Baroda, Vadodara 390 002, India
| | - Ashutosh V. Bedekar
- Department of Chemistry,
Faculty of Science, M. S. University of Baroda, Vadodara 390 002, India
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17
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Elmes RBP. Bioreductive fluorescent imaging agents: applications to tumour hypoxia. Chem Commun (Camb) 2016; 52:8935-56. [DOI: 10.1039/c6cc01037g] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The development of new optical chemosensors for various reductases presents an ideal approach to visualise areas of tissue hypoxia.
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Affiliation(s)
- Robert B. P. Elmes
- Department of Chemistry
- Maynooth University
- National University of Ireland
- Maynooth
- Ireland
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18
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Romieu A. “AND” luminescent “reactive” molecular logic gates: a gateway to multi-analyte bioimaging and biosensing. Org Biomol Chem 2015; 13:1294-306. [DOI: 10.1039/c4ob02076f] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This feature article focuses on the recent development of “AND” luminescent molecular logic gates, in which the optical output is produced in response to multiple (bio)chemical inputs and through cascades of covalent bond-modifying reactions triggered by target (bio)analytes, for biosensing and bioimaging applications in complex media.
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Affiliation(s)
- Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Université de Bourgogne
- 21078 Dijon
- France
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19
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Mazaheri O, Kalbasi RJ. Preparation and characterization of Ni/mZSM-5 zeolite with a hierarchical pore structure by using KIT-6 as silica template: an efficient bi-functional catalyst for the reduction of nitro aromatic compounds. RSC Adv 2015. [DOI: 10.1039/c5ra02349a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ni/mZSM-5 hierarchical zeolite and the acidic form of it were prepared as novel bi-functional catalysts which showed excellent activity for reduction of nitro aromatic compounds in aqueous medium at room temperature.
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Affiliation(s)
- Omid Mazaheri
- Department of Chemistry
- Islamic Azad University
- Shahreza Branch
- Isfahan
- Iran
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Rajapakse A, Hillebrand R, Lewis SM, Parsons ZD, Barnes CL, Gates KS. Crystal structure of N-(quinolin-6-yl)hydroxyl-amine. Acta Crystallogr Sect E Struct Rep Online 2014; 70:322-324. [PMID: 25484734 PMCID: PMC4257318 DOI: 10.1107/s160053681402193x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 10/05/2014] [Indexed: 06/04/2023]
Abstract
The title compound, C9H8N2O, crystallized with four independent mol-ecules in the asymmetric unit. The four mol-ecules are linked via one O-H⋯N and two N-H⋯N hydrogen bonds, forming a tetra-mer-like unit. In the crystal, mol-ecules are further linked by O-H⋯N and N-H⋯O hydrogen bonds forming layers parallel to (001). These layers are linked via C-H⋯O hydrogen bonds and a number of weak C-H⋯π inter-actions, forming a three-dimensional structure. The crystal was refined as a non-merohedral twin with a minor twin component of 0.319.
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Affiliation(s)
| | - Roman Hillebrand
- 125 Chemistry Bldg, University of Missouri Columbia, MO 65211, USA
| | - Sarah M. Lewis
- 125 Chemistry Bldg, University of Missouri Columbia, MO 65211, USA
| | | | | | - Kent S. Gates
- 125 Chemistry Bldg, University of Missouri Columbia, MO 65211, USA
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Firmansyah D, Banasiewicz M, Deperasińska I, Makarewicz A, Kozankiewicz B, Gryko DT. Vertically π-Expanded Imidazo[1,2-a]pyridine: The Missing Link of the Puzzle. Chem Asian J 2014; 9:2483-93. [DOI: 10.1002/asia.201402201] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Indexed: 12/20/2022]
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Li M, Niu Y, Zhu X, Peng Q, Lu HY, Xia A, Chen CF. Tetrahydro[5]helicene-based imide dyes with intense fluorescence in both solution and solid state. Chem Commun (Camb) 2014; 50:2993-5. [DOI: 10.1039/c3cc49680e] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Tetrahydro[5]helicene-based imide dyes with intense fluorescence and large Stokes shifts in solution and solid state were developed and theoretically investigated.
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Affiliation(s)
- Meng Li
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Yingli Niu
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Xiaozhang Zhu
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Qian Peng
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Hai-Yan Lu
- University of Chinese Academy of Sciences
- Beijing 100049, China
| | - Andong Xia
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Chuan-Feng Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
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Dong Z, Le X, Zhou P, Dong C, Ma J. Sequential recognition of zinc ion and hydrogen sulfide by a new quinoline derivative with logic gate behavior. RSC Adv 2014. [DOI: 10.1039/c3ra47755j] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Schiff base-type fluorescent chemosensor L has been synthesized for Zn2+ detection, and the consequent product of L and Zn2+, L–2Zn, is an excellent indicator for H2S for displacement of Zn2+ from the complex L–2Zn.
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Affiliation(s)
- Zhengping Dong
- College of Chemistry and Chemical Engineering
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- Lanzhou University
- Lanzhou 730000, PR China
| | - Xuanduong Le
- College of Chemistry and Chemical Engineering
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- Lanzhou University
- Lanzhou 730000, PR China
| | - Panpan Zhou
- College of Chemistry and Chemical Engineering
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- Lanzhou University
- Lanzhou 730000, PR China
| | - Chunxu Dong
- College of Chemistry and Chemical Engineering
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- Lanzhou University
- Lanzhou 730000, PR China
| | - Jiantai Ma
- College of Chemistry and Chemical Engineering
- Gansu Provincial Engineering Laboratory for Chemical Catalysis
- Lanzhou University
- Lanzhou 730000, PR China
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FSL-61 is a 6-nitroquinolone fluorogenic probe for one-electron reductases in hypoxic cells. Biochem J 2013; 452:79-86. [DOI: 10.1042/bj20121695] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
One-electron reductases that reduce nitro compounds in hypoxic human tumour cells are poorly characterized, but are important for targeting hypoxia with nitroaromatic prodrugs. Fluorogenic probes with defined reductase profiles are needed to interrogate the activity of these enzymes in intact cells. In the present paper, we report a 6-nitroquinolone ester (FSL-61) as a fluorogenic probe for POR (NADPH:cytochrome P450 oxidoreductase) activity under hypoxia, and demonstrate its suitability of monitoring POR by flow cytometry. Reduction of FSL-61 by purified recombinant human POR generated the corresponding hydroxylamine, which was non-fluorescent, but was reduced further to the fluorescent amine in cells. Hydrolysis of the ester side chain facilitated cellular entrapment, enabling detection of heterogeneous POR expression in mixed populations of cells. In addition to POR, forced expression of three other diflavin reductases [MTRR (methionine synthase reductase), NDOR1 (NADPH-dependent diflavin oxidoreductase 1) and NOS2A (nitric oxide synthase 2A)] or NADPH:adrenoredoxin oxidoreductase in HCT116 cells significantly increased hypoxic activation of FSL-61. This reductase profile is similar to that for the dinitrobenzamide prodrug PR-104A under hypoxia, and fluorogenic metabolism of FSL-61 correlated significantly with PR-104A activation in a panel of 22 human tumour cell lines. The present study thus demonstrates the utility of FSL-61 for rapid and non-destructive interrogation of the activity of one-electron reductases in hypoxic cells at the single-cell level.
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Rajapakse A, Linder C, Morrison RD, Sarkar U, Leigh ND, Barnes CL, Daniels JS, Gates KS. Enzymatic conversion of 6-nitroquinoline to the fluorophore 6-aminoquinoline selectively under hypoxic conditions. Chem Res Toxicol 2013; 26:555-63. [PMID: 23488987 DOI: 10.1021/tx300483z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
There is substantial interest in small molecules that can be used to detect or kill the hypoxic (low oxygen) cells found in solid tumors. Nitroaryl moieties are useful components in the design of hypoxia-selective imaging agents and prodrugs because one-electron reductases can convert the nitroaryl group to nitroso, hydroxylamino, and amino metabolites selectively under low oxygen conditions. Here, we describe the in vitro, cell free metabolism of a pro-fluorescent substrate, 6-nitroquinoline (1) under both aerobic and hypoxic conditions. Both LC-MS and fluorescence spectroscopic analyses provided evidence that the one-electron reducing enzyme system, xanthine/xanthine oxidase, converted the nonfluorescent parent compound 1 to the known fluorophore 6-aminoquinoline (2) selectively under hypoxic conditions. The presumed intermediate in this reduction process, 6-hydroxylaminoquinoline (6), is fluorescent and can be efficiently converted by xanthine/xanthine oxidase to 2 only under hypoxic conditions. This finding provides evidence for multiple oxygen-sensitive steps in the enzymatic conversion of nitroaryl compounds to the corresponding amino derivatives. In a side reaction that is separate from the bioreductive metabolism of 1, xanthine oxidase converted 1 to 6-nitroquinolin-2(1H)-one (5). These studies may enable the use of 1 as a fluorescent substrate for the detection and profiling of one-electron reductases in cell culture or biopsy samples. In addition, the compound may find use as a fluorogenic probe for the detection of hypoxia in tumor models. The occurrence of side products such as 5 in the enzymatic bioreduction of 1 underscores the importance of metabolite identification in the characterization of hypoxia-selective probes and drugs that employ nitroaryl units as oxygen sensors.
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Affiliation(s)
- Anuruddha Rajapakse
- Department of Chemistry, University of Missouri , 125 Chemistry Building, Columbia, Missouri 65211, United States
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