1
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Lei X, Feng J, Guo Q, Xu C, Shi J. Base-Promoted Formal [3 + 2] Cycloaddition of α-Halohydroxamates with Carbon Disulfide to Synthesize Polysubstituted Rhodanines. Org Lett 2022; 24:2837-2841. [PMID: 35394789 DOI: 10.1021/acs.orglett.2c00736] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A concise and practical strategy via potassium-carbonate-mediated [3 + 2]-cycloaddition reaction of α-halohydroxamates with the common solvent carbon disulfide for the synthesis of functionalized rhodanine derivatives in good to excellent yields is developed. The present methodology features a wide substrate scope as well as good functional group tolerance. The potential synthetic utility of this protocol is demonstrated by synthesis of a series of natural product derivatives containing rhodamine skeletons.
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Affiliation(s)
- Xiaoqiang Lei
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Juan Feng
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, People's Republic of China
| | - Qinglan Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Chengbo Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Jiangong Shi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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2
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Ma ZW, Liu XF, Chen XP, Wang CC, Tao JC, Lv QJ. Enantioselective Michael Addition of Pyrazolin-5-ones to Nitroalkenes Catalyzed by Novel Squaramide Organocatalyst. LETT ORG CHEM 2022. [DOI: 10.2174/1570178619666220128142038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
A newly tertiary amine-thiourea organocatalyst has successfully developed and applied into the asymmetric Michael addition of pyrazolin-5-one to nitroalkenes. The catalyst system performed well with a low catalyst loading of 5 mol% under mild reaction conditions. A series of synthetically and pharmaceutically useful chiral pyrazolone derivatives were obtained in high yields (up to 95%) with good enantioselectivities (up to 88 % ee).
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Affiliation(s)
- Zhi-Wei Ma
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, P. R. China
| | - Xiao-Feng Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, P. R. China
| | - Xiao-Pei Chen
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, P. R. China
| | - Chuan-Chuan Wang
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, P. R. China
| | - Jing-Chao Tao
- College of Chemistry, Zhengzhou University, Zhengzhou, P. R. China
| | - Quan-Jian Lv
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, P. R. China
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3
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Mori A, Kubota C, Fujita K, Hayashi M, Ogura T, Suzuki T, Okano K, Funahashi M, Horie M. Thermally Induced Self-Doping of π-Conjugated Polymers Bearing a Pendant Neopentyl Sulfonate Group. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02554] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada 657-8501, Japan
| | - Chihiro Kubota
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Keisuke Fujita
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Masayasu Hayashi
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Tadayuki Ogura
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Toyoko Suzuki
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Masahiro Funahashi
- Department of Advanced Materials Science, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
| | - Masaki Horie
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
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4
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C. Tice N, Wild S, Olmstead C, D. Stevens E, Yan B, Brooks H, L. Jenkins J. Synthesis, Characterization, and Electronic and Structural Calculations of Some 1,4-Disubstituted Cyclopenta[d][1,2]oxazines. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Kulkarni R, Vandenberghe M, Thunemann M, James F, Andreassen OA, Djurovic S, Devor A, Miller EW. In Vivo Two-Photon Voltage Imaging with Sulfonated Rhodamine Dyes. ACS CENTRAL SCIENCE 2018; 4:1371-1378. [PMID: 30410975 PMCID: PMC6202643 DOI: 10.1021/acscentsci.8b00422] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Indexed: 05/24/2023]
Abstract
Optical methods that rely on fluorescence for mapping changes in neuronal membrane potential in the brains of awake animals provide a powerful way to interrogate the activity of neurons that underlie neural computations ranging from sensation and perception to learning and memory. To achieve this goal, fluorescent indicators should be bright, highly sensitive to small changes in membrane potential, nontoxic, and excitable with infrared light. We report a new class of fluorescent, voltage-sensitive dyes: sulfonated rhodamine voltage reporters (sRhoVR), synthetic fluorophores with high voltage sensitivity, excellent two-photon performance, and compatibility in intact mouse brains. sRhoVR dyes are based on a tetramethyl rhodamine fluorophore coupled to a phenylenevinylene molecular wire/diethyl aniline voltage-sensitive domain. When applied to cells, sRhoVR dyes localize to the plasma membrane and respond to membrane depolarization with a fluorescence increase. The best of the new dyes, sRhoVR 1, displays a 44% ΔF/F increase in fluorescence per 100 mV change, emits at 570 nm, and possesses excellent two-photon absorption of approximately 200 GM at 840 nm. sRhoVR 1 can detect action potentials in cultured rat hippocampal neurons under both single- and two-photon illumination with sufficient speed and sensitivity to report on action potentials in single trials, without perturbing underlying physiology or membrane properties. The combination of speed, sensitivity, and brightness under two-photon illumination makes sRhoVR 1 a promising candidate for in vivo imaging in intact brains. We show sRhoVR powerfully complements electrode-based modes of neuronal activity recording in the mouse brain by recording neuronal transmembrane potentials from the neuropil of layer 2/3 of the mouse barrel cortex in concert with extracellularly recorded local field potentials (LFPs). sRhoVR imaging reveals robust depolarization in response to whisker stimulation; concurrent electrode recordings reveal negative deflections in the LFP recording, consistent with the canonical thalamocortical response. Importantly, sRhoVR 1 can be applied in mice with chronic optical windows, presaging its utility in dissecting and resolving voltage dynamics using two-photon functional imaging in awake, behaving animals.
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Affiliation(s)
- Rishikesh
U. Kulkarni
- Department
of Chemistry, Department of Molecular and Cell Biology, and Helen Wills Neuroscience
Institute, University of California, Berkeley, California 94720, United States
| | - Matthieu Vandenberghe
- Department of Neurosciences and Department of Radiology, University of California, San
Diego, California 92093, United States
- NORMENT − KG Jebsen
Centre for Psychosis Research, Division
of Mental Health and Addiction, Oslo University Hospital
and University of Oslo and Department of Medical Genetics, Oslo University
Hospital, 0407 Oslo, Norway
| | - Martin Thunemann
- Department of Neurosciences and Department of Radiology, University of California, San
Diego, California 92093, United States
| | - Feroz James
- Department
of Chemistry, Department of Molecular and Cell Biology, and Helen Wills Neuroscience
Institute, University of California, Berkeley, California 94720, United States
| | - Ole A. Andreassen
- NORMENT − KG Jebsen
Centre for Psychosis Research, Division
of Mental Health and Addiction, Oslo University Hospital
and University of Oslo and Department of Medical Genetics, Oslo University
Hospital, 0407 Oslo, Norway
| | - Srdjan Djurovic
- NORMENT − KG Jebsen
Centre for Psychosis Research, Division
of Mental Health and Addiction, Oslo University Hospital
and University of Oslo and Department of Medical Genetics, Oslo University
Hospital, 0407 Oslo, Norway
| | - Anna Devor
- Department of Neurosciences and Department of Radiology, University of California, San
Diego, California 92093, United States
- Martinos
Center for Biomedical Imaging, Massachusetts
General Hospital, Charlestown, Massachusetts 02129, United States
| | - Evan W. Miller
- Department
of Chemistry, Department of Molecular and Cell Biology, and Helen Wills Neuroscience
Institute, University of California, Berkeley, California 94720, United States
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6
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Ziarani GM, Moradi R, Lashgari N, Kruger HG. Miscellaneous Dyes. METAL-FREE SYNTHETIC ORGANIC DYES 2018:245-259. [DOI: 10.1016/b978-0-12-815647-6.00019-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
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7
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S. Alneyadi S. Rhodanine as a Scaffold: A Short Review on Its Synthesis and Anti-Diabetic Activities. HETEROCYCLES 2018. [DOI: 10.3987/rev-17-878] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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8
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Synthesis, Characterization, and Structure of Some 1,4-Disubstituted Cyclopenta[d][1,2]oxazines. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Miller EW. Small molecule fluorescent voltage indicators for studying membrane potential. Curr Opin Chem Biol 2016; 33:74-80. [PMID: 27318561 DOI: 10.1016/j.cbpa.2016.06.003] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 11/18/2022]
Abstract
Voltage imaging has the potential to unravel the contributions that rapid changes in membrane voltage make to cellular physiology, especially in the context of neuroscience. In particular, small molecule fluorophores are especially attractive because they can, in theory, provide fast and sensitive measurements of membrane potential dynamics. A number of classes of small molecule voltage indicators will be discussed, including dyes with improved two-photon voltage sensing, near infrared optical profiles for use in in vivo applications, and newly developed electron-transfer based indicators, or VoltageFluors, that can be tuned across a range of wavelengths to enable all-optical voltage manipulation and measurement. Limitations and a 'wish-list' for voltage indicators will also be discussed.
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Affiliation(s)
- Evan W Miller
- Departments of Chemistry, Molecular & Cell Biology, and Helen Wills Neuroscience Institute, 227 Hildebrand Berkeley, CA 94720-1460, United States.
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10
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Phelan JP, Ellman JA. Catalytic Enantioselective Addition of Pyrazol-5-ones to Trisubstituted Nitroalkenes with an N
-Sulfinylurea Organocatalyst. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600110] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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DMAP-promoted cascade C–S/C–N bonds formation approach to 1,3-thiazolidin-4-ones via annulation of β-ketothioamides with α-halocarboxylic acids at room temperature. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.084] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Formation and Reactivity of 5-Aminopenta-2,4-Dienals. ADVANCES IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1016/b978-0-12-420160-6.00001-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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13
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Verma GK, Shukla G, Nagaraju A, Srivastava A, Raghuvanshi K, Singh MS. DMAP-promoted domino annulation of β-ketothioamides with internal alkynes: a highly regioselective access to functionalized 1,3-thiazolidin-4-ones at room temperature. RSC Adv 2014. [DOI: 10.1039/c4ra00131a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
One-pot DMAP-mediated regioselective access to functionalized 1,3-thiazolidin-4-ones has been achieved via annulation of β-ketothioamides with internal alkynes.
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Affiliation(s)
- Girijesh Kumar Verma
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Gaurav Shukla
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Anugula Nagaraju
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Abhijeet Srivastava
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Keshav Raghuvanshi
- Institut fuer Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- 37077 Gottingen, Germany
| | - Maya Shankar Singh
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
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14
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Asymmetric cooperative catalysis in the conjugate addition of pyrazolones to nitroolefins and subsequent dearomative chlorination. Sci China Chem 2013. [DOI: 10.1007/s11426-013-5017-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Kar C, Ojha B, Das G. A novel amphiphilic thiosemicarbazone derivative for binding and selective sensing of human serum albumin. LUMINESCENCE 2013; 28:339-44. [DOI: 10.1002/bio.2387] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 04/04/2012] [Accepted: 04/30/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Chirantan Kar
- Department of Chemistry; Indian Institute of Technology Guwahati; Assam-781 039; India
| | - Bimlesh Ojha
- Department of Chemistry; Indian Institute of Technology Guwahati; Assam-781 039; India
| | - Gopal Das
- Department of Chemistry; Indian Institute of Technology Guwahati; Assam-781 039; India
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16
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Kamila S, Ankati H, Biehl ER. An efficient microwave assisted synthesis of novel class of Rhodanine derivatives as potential HIV-1 and JSP-1 inhibitors. Tetrahedron Lett 2011; 52:4375-4377. [PMID: 21804651 DOI: 10.1016/j.tetlet.2011.05.114] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
(Z)-5-(2-(1H-Indol-3-yl)-2-oxoethylidene)-3-phenyl-2-thioxothiazolidin-4-one (7a-q) derivatives have been synthesized by the condensation reaction of 3-phenyl-2-thioxothiazolidin-4-ones (3a-h) with suitably substituted 2-(1H-indol-3-yl)-2-oxoacetaldehyde (6a-d) under microwave condition. The thioxothiazolidine-4-ones were prepared from corresponding aromatic amines (1a-e) and di-(carboxymethyl)-trithiocarbonyl (2). The aldehydes (6a-h) were synthesized from the corresponding acidchlorides (5a-d) using HSnBu(3).
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Affiliation(s)
- Sukanta Kamila
- Southern Methodist University, Department of, Chemistry, Dallas, TX, 75275
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17
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Gioux S, Choi HS, Frangioni JV. Image-Guided Surgery Using Invisible Near-Infrared Light: Fundamentals of Clinical Translation. Mol Imaging 2010. [DOI: 10.2310/7290.2010.00034] [Citation(s) in RCA: 382] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Sylvain Gioux
- From the Division of Hematology/Oncology, Department of Medicine, and Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA, and CEA-LETI-MINATEC, Grenoble, France
| | - Hak Soo Choi
- From the Division of Hematology/Oncology, Department of Medicine, and Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA, and CEA-LETI-MINATEC, Grenoble, France
| | - John V. Frangioni
- From the Division of Hematology/Oncology, Department of Medicine, and Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA, and CEA-LETI-MINATEC, Grenoble, France
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