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Fuentes-Aguilar A, González-Bakker A, Jovanović M, Stojanov SJ, Puerta A, Gargano A, Dinić J, Vega-Báez JL, Merino-Montiel P, Montiel-Smith S, Alcaro S, Nocentini A, Pešić M, Supuran CT, Padrón JM, Fernández-Bolaños JG, López Ó. Coumarins-lipophilic cations conjugates: Efficient mitocans targeting carbonic anhydrases. Bioorg Chem 2024; 145:107168. [PMID: 38354500 DOI: 10.1016/j.bioorg.2024.107168] [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: 11/21/2023] [Revised: 01/22/2024] [Accepted: 01/30/2024] [Indexed: 02/16/2024]
Abstract
Being aware of the need to develop more efficient therapies against cancer, herein we disclose an innovative approach for the design of selective antiproliferative agents. We have accomplished the conjugation of a coumarin fragment with lipophilic cations (triphenylphosphonium salts, guanidinium) for providing mitochondriotropic agents that simultaneously target also carbonic anhydrases IX and XII, involved in the development and progression of cancer. The new compounds prepared herein turned out to be strong inhibitors of carbonic anhydrases IX and XII of human origin (low-to-mid nM range), also endowed with high selectivity, exhibiting negligible activity towards cytosolic CA isoforms. Key interactions with the enzyme were analysed using docking and molecular dynamics simulations. Regarding their in vitro antiproliferative activities, an increase of the tether length connecting both pharmacophores led to a clear improvement in potency, reaching the submicromolar range for the lead compounds, and an outstanding selectivity towards tumour cell lines (S.I. up to >357). Cytotoxic effects were also analysed on MDR cell lines under hypoxic and normoxic conditions. Chemoresistance exhibited by phosphonium salts, and not by guanidines, against MDR cells was based on the fact that the former were found to be substrates of P-glycoprotein (P-gp), the pump responsible for extruding foreign chemicals; this situation was reversed by administrating tariquidar, a third generation P-gp inhibitor. Moreover, phosphonium salts provoked a profound depolarization of mitochondria membranes from tumour cells, thus probably compromising their oxidative metabolism. To gain insight into the mode of action of title compounds, continuous live cell microscopy was employed; interestingly, this technique revealed two different antiproliferative mechanisms for both families of mitocans. Whereas phosphonium salts had a cytostatic effect, blocking cell division, guanidines led to cell death via apoptosis.
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Affiliation(s)
- Alma Fuentes-Aguilar
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, PUE, Mexico; Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, E-41071 Seville, Spain
| | - Aday González-Bakker
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González", Universidad de la Laguna, C/ Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
| | - Mirna Jovanović
- Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Despota Stefana 142, 11108 Belgrade, Serbia
| | - Sofija Jovanović Stojanov
- Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Despota Stefana 142, 11108 Belgrade, Serbia
| | - Adrián Puerta
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González", Universidad de la Laguna, C/ Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
| | - Adriana Gargano
- Dipartimento di Scienze della Salute, Università "Magna Græcia" di Catanzaro, Campus Universitario "S. Venuta", Viale Europa, 88100 Catanzaro, Italy
| | - Jelena Dinić
- Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Despota Stefana 142, 11108 Belgrade, Serbia
| | - José L Vega-Báez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, PUE, Mexico
| | - Penélope Merino-Montiel
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, PUE, Mexico
| | - Sara Montiel-Smith
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, PUE, Mexico
| | - Stefano Alcaro
- Dipartimento di Scienze della Salute, Università "Magna Græcia" di Catanzaro, Campus Universitario "S. Venuta", Viale Europa, 88100 Catanzaro, Italy; Net4Science Academic Spinoff, Università "Magna Græcia" di Catanzaro, Campus Universitario "S. Venuta", Viale Europa, 88100 Catanzaro, Italy; Associazione CRISEA - Centro di Ricerca e Servizi Avanzati per l'Innovazione Rurale, Località Condoleo, 88055 Belcastro (CZ), Italy
| | - Alessio Nocentini
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, 50019 Florence, Italy
| | - Milica Pešić
- Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Despota Stefana 142, 11108 Belgrade, Serbia.
| | - Claudiu T Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, 50019 Florence, Italy.
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González", Universidad de la Laguna, C/ Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain.
| | - José G Fernández-Bolaños
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, E-41071 Seville, Spain
| | - Óscar López
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, E-41071 Seville, Spain.
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Han L, Gan L, Hu X, Li W, Zhu D, Zheng J, Wu Y, Yu Y, Gan Z. Cu(OAc) 2 mediated mild synthesis of 2-aminobenzimidazoles and 2-aminobenzoxazoles. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2065509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lei Han
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - LinLing Gan
- Chongqing Engineering Research Center of Pharmaceutical Sciences, School of Pharmacy, Chongqing Medical and Pharmaceutical College, Chongqing, P. R. China
| | - Xiangnan Hu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Wei Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Dali Zhu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Jiecheng Zheng
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Yue Wu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Yu Yu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Zongjie Gan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
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Tanimori S, Fuchiya A, Miyamura T, Nariki H, Noda S, Makiyama K, Sonoda M. A Facile Synthesis of 2-Aminobenzoxazines Based on IodineCatalyzed Desulfurative Cyclization. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractA facile and environmentally benign access to N-aryl/alkyl-4H-benzoxazin-2-amines is achieved from 1-[2-(hydroxymethyl)phenyl/alkyl]-3-phenylthioureas under transition-metal-free conditions. The conversions occur smoothly in the presence of a catalytic amount of molecular iodine and hydrogen peroxide as the oxidant in tetrahydrofuran at room temperature to afford moderate to good yields (28–90%) of the desired products within 2 hours. This method reports the first examples of the catalytic transformations of 1-[2-(hydroxymethyl)phenyl/alkyl]-3-phenylthioureas into N-aryl/alkyl-4H-benzoxazin-2-amines based on desulfurative cyclization.
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4
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Fuentes-Aguilar A, Merino-Montiel P, Montiel-Smith S, Meza-Reyes S, Vega-Báez JL, Puerta A, Fernandes MX, Padrón JM, Petreni A, Nocentini A, Supuran CT, López Ó, Fernández-Bolaños JG. 2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases. J Enzyme Inhib Med Chem 2021; 37:168-177. [PMID: 34894971 PMCID: PMC8667885 DOI: 10.1080/14756366.2021.1998026] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
We have carried out the design, synthesis, and evaluation of a small library of 2-aminobenzoxazole-appended coumarins as novel inhibitors of tumour-related CAs IX and XII. Substituents on C-3 and/or C-4 positions of the coumarin scaffold, and on the benzoxazole moiety, together with the length of the linker connecting both units were modified to obtain useful structure-activity relationships. CA inhibition studies revealed a good selectivity towards tumour-associated CAs IX and XII (Ki within the mid-nanomolar range in most of the cases) in comparison with CAs I, II, IV, and VII (Ki > 10 µM); CA IX was found to be slightly more sensitive towards structural changes. Docking calculations suggested that the coumarin scaffold might act as a prodrug, binding to the CAs in its hydrolysed form, which is in turn obtained due to the esterase activity of CAs. An increase of the tether length and of the substituents steric hindrance was found to be detrimental to in vitro antiproliferative activities. Incorporation of a chlorine atom on C-3 of the coumarin moiety achieved the strongest antiproliferative agent, with activities within the low micromolar range for the panel of tumour cell lines tested.
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Affiliation(s)
- Alma Fuentes-Aguilar
- Facultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de Puebla, Puebla, México
| | - Penélope Merino-Montiel
- Facultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de Puebla, Puebla, México
| | - Sara Montiel-Smith
- Facultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de Puebla, Puebla, México
| | - Socorro Meza-Reyes
- Facultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de Puebla, Puebla, México
| | - José Luis Vega-Báez
- Facultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de Puebla, Puebla, México
| | - Adrián Puerta
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Universidad de La Laguna, La Laguna, Spain
| | - Miguel X Fernandes
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Universidad de La Laguna, La Laguna, Spain
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Universidad de La Laguna, La Laguna, Spain
| | - Andrea Petreni
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence, Italy
| | - Alessio Nocentini
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence, Italy
| | - Claudiu T Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence, Italy
| | - Óscar López
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Seville, Spain
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6
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Tian JS, He Y, Gao ZY, Liu X, Dong SF, Wu P, Loh TP. Water-Tolerant ortho-Acylation of Phenols. Org Lett 2021; 23:6594-6598. [PMID: 34378942 DOI: 10.1021/acs.orglett.1c02583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A metal-free, water-tolerant, and one-pot process for ortho-acylation of phenols promoted by the iodine source/hydrogen peroxide system has been developed. This transformation undergoes ether formation, iodocyclization, C-C bond cleavage, and oxidative hydrolysis in a one-step manner, which is supported by control experiments.
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Affiliation(s)
- Jie-Sheng Tian
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, China.,School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China
| | - Yu He
- School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China
| | - Zhi-Yuan Gao
- School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China
| | - Xu Liu
- School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China
| | - Shuang-Feng Dong
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Peng Wu
- School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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7
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Kadagathur M, Sigalapalli DK, Patra S, Tangellamudi ND. Microwave-assisted hydrogen peroxide-mediated synthesis of benzoxazoles and related heterocycles via cyclodesulfurization. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1928217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Manasa Kadagathur
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Dilep Kumar Sigalapalli
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Sandip Patra
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Neelima D. Tangellamudi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
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8
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Kadagathur M, Shaikh AS, Jadhav GS, Sigalapalli DK, Shankaraiah N, Tangellamudi ND. Cyclodesulfurization: An Enabling Protocol for Synthesis of Various Heterocycles. ChemistrySelect 2021. [DOI: 10.1002/slct.202100201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Manasa Kadagathur
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Arbaz Sujat Shaikh
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Govinda Shivaji Jadhav
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Dilep Kumar Sigalapalli
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Neelima D. Tangellamudi
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
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9
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Tanimori S, Nariki H, Miyamura T, Matsui D, Sonoda M. Iodine-Mediated Facile One-Pot Access to N-Aryl-2-benzoxazolamines. SYNOPEN 2020. [DOI: 10.1055/s-0040-1705982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
AbstractFacile, iodine-mediated access to N-aryl-2-benzoxazolamines has been achieved in a one-pot manner under mild reaction conditions. Reaction of 2-aminophenols and aryl isothiocyanates afforded N-aryl-2-benzoxazolamines in the presence of molecular iodine and pyridine in tetrahydrofuran at room temperature in moderate to excellent yields.
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10
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Boddapati S, Saketi JMR, Mutchu BR, Bollikolla HB, Adil SF, Khan M. Copper promoted desulfurization and C-N cross coupling reactions: Simple approach to the synthesis of substituted 2-aminobenzoxazoles and 2,5-disubstituted tetrazole amines. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2019.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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11
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Rodríguez-Nuévalos S, Costero AM, Arroyo P, Sáez JA, Parra M, Sancenón F, Martínez-Máñez R. Protection against chemical submission: naked-eye detection of γ-hydroxybutyric acid (GHB) in soft drinks and alcoholic beverages. Chem Commun (Camb) 2020; 56:12600-12603. [DOI: 10.1039/d0cc05387b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Chemosensors for naked-eye detection of the submission drug GHB in beverages.
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Affiliation(s)
- Silvia Rodríguez-Nuévalos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM)
- Universitad Politècnica de València
- Universitat de València
- Spain
| | - Ana M. Costero
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM)
- Universitad Politècnica de València
- Universitat de València
- Spain
- Departamento de Química Orgánica
| | - Pau Arroyo
- Departamento de Química Orgánica
- Universidad de Valencia
- Burjassot
- Spain
| | - José A. Sáez
- Departamento de Química Orgánica
- Universidad de Valencia
- Burjassot
- Spain
| | - Margarita Parra
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM)
- Universitad Politècnica de València
- Universitat de València
- Spain
- Departamento de Química Orgánica
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM)
- Universitad Politècnica de València
- Universitat de València
- Spain
- CIBER de Bioingeniería
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM)
- Universitad Politècnica de València
- Universitat de València
- Spain
- CIBER de Bioingeniería
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12
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Zhang J, Chen L, Dong Y, Yang J, Wu Y. A Cu 2O/TBAB-promoted approach to synthesize heteroaromatic 2-amines via one-pot cyclization of aryl isothiocyanates with ortho-substituted amines in water. Org Biomol Chem 2020; 18:7425-7430. [PMID: 32936165 DOI: 10.1039/d0ob01431a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach to synthesize heteroaromatic 2-amines from one-pot desulfurization/dehydrogenative cyclization of aryl isothiocyanates with ortho-substituted amines in water was developed. This approach tolerated a wide range of functional groups on the aromatic ring, providing a practical and environment-friendly process to synthesize heteroaromatic 2-amines in moderate to excellent yields. A plausible mechanism was proposed and the role of TBAB and Cu2O in the present strategy was suggested with the help of ESI mass spectrometry.
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Affiliation(s)
- Jinli Zhang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P.R. China. and College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Ling Chen
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P.R. China.
| | - Yibo Dong
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P.R. China.
| | - Jinchen Yang
- College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P.R. China. and College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
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13
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Giofrè S, Sala R, Beccalli EM, Presti LL, Broggini G. Iodoamination of Alkenyl Sulfonamides by Potassium Iodide and Hydrogen Peroxide in Aqueous Medium. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sabrina Giofrè
- DISFARM, Sezione di Chimica Generale e Organica ‘A. Marchesini'Università degli Studi di Milano Via Venezian 21 IT-20133 Milano Italy
| | - Roberto Sala
- Dipartimento di Scienza e Alta TecnologiaUniversità degli Studi dell'Insubria Via Valleggio 9 IT-22100 Como Italy
| | - Egle Maria Beccalli
- DISFARM, Sezione di Chimica Generale e Organica ‘A. Marchesini'Università degli Studi di Milano Via Venezian 21 IT-20133 Milano Italy
| | - Leonardo Lo Presti
- Dipartimento di ChimicaUniversità degli Studi di Milano Via Golgi 19 IT-20133 Milano Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta TecnologiaUniversità degli Studi dell'Insubria Via Valleggio 9 IT-22100 Como Italy
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Pattarawarapan M, Yamano D, Wiriya N, Phakhodee W. Metal-Free Synthesis of 2- N, N-Dialkylaminobenzoxazoles Using Tertiary Amines as the Nitrogen Source. J Org Chem 2019; 84:6516-6523. [PMID: 31017442 DOI: 10.1021/acs.joc.9b00797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The unprecedented reaction of tertiary amines with 2(3 H)-benzoxazolones has been investigated. In the presence of the Ph3P-I2 reagent system, the reaction of both acyclic and cyclic aliphatic tertiary amines led to the formation of 2- N, N-dialkylaminobenzoxazoles with the selective cleavage of an alkyl group. Especially, N-(2-iodoethyl)piperazinyl derivatives were rapidly produced in good yields when using DABCO as the nitrogen source. Only in the cases when the nucleophilicity of the substrates exceeds that of the amine, competitive self-condensation of benzoxazolones then proceeds preferentially. 31P{1H}-NMR study suggested the involvement of an aryloxyphosphonium intermediate and/or possibly 2-iodobenzoxazole which activates the C-2 position of benzoxazolones toward nucleophilic aromatic substitution.
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Affiliation(s)
- Mookda Pattarawarapan
- Department of Chemistry, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
- Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
| | - Dolnapa Yamano
- Department of Chemistry, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
| | - Nitaya Wiriya
- Department of Chemistry, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
| | - Wong Phakhodee
- Department of Chemistry, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
- Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Faculty of Science , Chiang Mai University , Chiang Mai 50200 , Thailand
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15
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Rapolu T, K. V. P. PK, Babu KR, Dende SK, Nimmareddy RR, Reddy LK. Microwave assisted one pot synthesis of 2-ethylamino benzimidazole, benzoxazole and benzothiazole derivatives. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1599952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Thirupathi Rapolu
- Medicinal Chemistry Division, GVK Biosciences Private Limited, Hyderabad, India
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
| | | | - Korupolu Raghu Babu
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
| | - Satheesh Kumar Dende
- Medicinal Chemistry Division, GVK Biosciences Private Limited, Hyderabad, India
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
| | - Rajashekar Reddy Nimmareddy
- Medicinal Chemistry Division, GVK Biosciences Private Limited, Hyderabad, India
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
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Rong HJ, Yang CF, Chen T, Xu ZG, Su TD, Wang YQ, Ning BK. Iodine-catalyzed guanylation of amines withN,N′-di-Boc-thiourea. Org Biomol Chem 2019; 17:9280-9283. [DOI: 10.1039/c9ob02014d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Iodine-catalyzed guanylation of amines withN,N′-di-Boc-thiourea is especially useful for both electronically and sterically deactivated primary anilines.
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Affiliation(s)
- Hao-Jie Rong
- Modern Chemistry Research Institute of Xi'an
- Xi'an 710065
- China
- Department of Chemistry & Materials Science
- Northwest University
| | - Cui-Feng Yang
- Modern Chemistry Research Institute of Xi'an
- Xi'an 710065
- China
| | - Tao Chen
- Modern Chemistry Research Institute of Xi'an
- Xi'an 710065
- China
| | - Ze-Gang Xu
- Modern Chemistry Research Institute of Xi'an
- Xi'an 710065
- China
| | - Tian-Duo Su
- Modern Chemistry Research Institute of Xi'an
- Xi'an 710065
- China
| | - Yong-Qiang Wang
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Bin-Ke Ning
- Modern Chemistry Research Institute of Xi'an
- Xi'an 710065
- China
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an 710065
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17
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Tankam T, Srisa J, Sukwattanasinitt M, Wacharasindhu S. Microwave-Enhanced On-Water Amination of 2-Mercaptobenzoxazoles To Prepare 2-Aminobenzoxazoles. J Org Chem 2018; 83:11936-11943. [DOI: 10.1021/acs.joc.8b01824] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Theeranon Tankam
- Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University Bangkok 10330, Thailand
| | - Jakkrit Srisa
- Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University Bangkok 10330, Thailand
| | - Mongkol Sukwattanasinitt
- Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University Bangkok 10330, Thailand
| | - Sumrit Wacharasindhu
- Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University Bangkok 10330, Thailand
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18
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Gao YT, Jin XY, Liu Q, Liu AD, Cheng L, Wang D, Liu L. Iodide/H₂O₂ Catalyzed Intramolecular Oxidative Amination for the Synthesis of 3,2'-Pyrrolidinyl Spirooxindoles. Molecules 2018; 23:molecules23092265. [PMID: 30189635 PMCID: PMC6225319 DOI: 10.3390/molecules23092265] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 08/21/2018] [Accepted: 08/24/2018] [Indexed: 12/13/2022] Open
Abstract
An ammonium iodide/hydrogen peroxide-mediated intramolecular oxidative amination of 3-aminoalkyl-2-oxindoles was achieved, affording the corresponding 3,2'-pyrrolidinyl spirooxindoles and their 6- or 7-membered analogous in moderate to high yields. This metal-free procedure features very mild reaction conditions, non-toxicity and easily handled hydrogen peroxide as a clean oxidant.
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Affiliation(s)
- Yu-Ting Gao
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xiao-Yang Jin
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Qi Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - An-Di Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Liang Cheng
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Dong Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Li Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
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