1
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Jadhav CK, Nipate AS, Chate AV, Gill CH. β‐Cyclodextrin: An Efficient Supramolecular Catalyst for the Synthesis of Pyranoquinolines Derivatives under Ultrasonic Irradiation in Water. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.1886125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Chetan K. Jadhav
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
| | - Amol S. Nipate
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
| | - Asha V. Chate
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
| | - Charansingh. H. Gill
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
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2
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Dyachenko IV, Dyachenko VD, Dorovatovskii PV, Khrustalev VN, Rivera DG, Nenajdenko VG. Three-Component Synthesis and Crystal Structure of 2-Amino-3-cyano-4 H-pyran and -thiopyran Derivatives. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022; 58. [PMCID: PMC9906589 DOI: 10.1134/s1070428022120077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
2-Amino-3-cyano-4H-pyran and -thiopyran derivatives were synthesized by three-component reactions of aldehydes, dimedone, and CH acids. The molecular and crystal structures of the synthesized compounds were determined by X-ray analysis.
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Affiliation(s)
- I. V. Dyachenko
- Lugansk State Pedagogical University, 91011 Lugansk, Ukraine
| | - V. D. Dyachenko
- Lugansk State Pedagogical University, 91011 Lugansk, Ukraine
| | | | - V. N. Khrustalev
- Peoples’ Friendship University of Russia, 117198 Moscow, Russia ,Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | | | - V. G. Nenajdenko
- Faculty of Chemistry, Moscow State University, 119991 Moscow, Russia
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3
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Kaur M, U Din Reshi N, Patra K, Bhattacherya A, Kunnikuruvan S, Bera JK. A Proton-Responsive Pyridyl(benzamide)-Functionalized NHC Ligand on Ir Complex for Alkylation of Ketones and Secondary Alcohols. Chemistry 2021; 27:10737-10748. [PMID: 33998720 DOI: 10.1002/chem.202101360] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Indexed: 12/22/2022]
Abstract
A Cp*Ir(III) complex (1) of a newly designed ligand L1 featuring a proton-responsive pyridyl(benzamide) appended on N-heterocyclic carbene (NHC) has been synthesized. The molecular structure of 1 reveals a dearomatized form of the ligand. The protonation of 1 with HBF4 in tetrahydrofuran gives the corresponding aromatized complex [Cp*Ir(L1 H)Cl]BF4 (2). Both compounds are characterized spectroscopically and by X-ray crystallography. The protonation of 1 with acid is examined by 1 H NMR and UV-vis spectra. The proton-responsive character of 1 is exploited for catalyzing α-alkylation of ketones and β-alkylation of secondary alcohols using primary alcohols as alkylating agents through hydrogen-borrowing methodology. Compound 1 is an effective catalyst for these reactions and exhibits a superior activity in comparison to a structurally similar iridium complex [Cp*Ir(L2 )Cl]PF6 (3) lacking a proton-responsive pendant amide moiety. The catalytic alkylation is characterized by a wide substrate scope, low catalyst and base loadings, and a short reaction time. The catalytic efficacy of 1 is also demonstrated for the syntheses of quinoline and lactone derivatives via acceptorless dehydrogenation, and selective alkylation of two steroids, pregnenolone and testosterone. Detailed mechanistic investigations and DFT calculations substantiate the role of the proton-responsive ligand in the hydrogen-borrowing process.
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Affiliation(s)
- Mandeep Kaur
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Noor U Din Reshi
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Kamaless Patra
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Arindom Bhattacherya
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sooraj Kunnikuruvan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, 695551, India
| | - Jitendra K Bera
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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4
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Abass M, Alzandi ARA, Hassan MM, Mohamed N. Recent Advances on Diversity Oriented Heterocycle Synthesis of Fused Quinolines and Its Biological Evaluation. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2019.1710856] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Mohamed Abass
- Department of Chemistry, Faculty of Education, Ain Shams University, Cairo, Egypt
| | - Abdel Rahman A. Alzandi
- Biology Department, Faculty of Sciences & Arts (Almikhwah), Al Baha University, Al Baha, Saudi Arabia
| | - Mohamed M. Hassan
- Department of Chemistry, Faculty of Education, Ain Shams University, Cairo, Egypt
| | - Noha Mohamed
- Department of Chemistry, Faculty of Education, Ain Shams University, Cairo, Egypt
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5
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Win KMN, Sonawane AD, Koketsu M. Iodine mediated in situ generation of R-Se–I: application towards the construction of pyrano[4,3-b]quinoline heterocycles and fluorescence properties. Org Biomol Chem 2019; 17:9039-9049. [DOI: 10.1039/c9ob01648a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Iodine mediated in situ generation of R-Se–I and its application towards the construction of pyrano[4,3-b]quinolin-1-one derivatives.
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Affiliation(s)
- Khin Myat Noe Win
- Department of Chemistry and Biomolecular Science
- Faculty of Engineering
- Gifu University
- Gifu 501-1193
- Japan
| | - Amol D. Sonawane
- Department of Chemistry and Biomolecular Science
- Faculty of Engineering
- Gifu University
- Gifu 501-1193
- Japan
| | - Mamoru Koketsu
- Department of Chemistry and Biomolecular Science
- Faculty of Engineering
- Gifu University
- Gifu 501-1193
- Japan
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6
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Xiong B, Wang Y, Liu Y, Bao Y, Liu Z, Zhang Y, Ling Y. Straightforward synthesis of quinolines from enones and 2-aminobenzyl alcohols using an iridium-catalyzed transfer hydrogenative strategy. Org Biomol Chem 2018; 16:5707-5711. [DOI: 10.1039/c8ob01321g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Synthesis of quinolines via transfer hydrogenative coupling with high step- and atom efficiency, mild conditions and operational simplicity.
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Affiliation(s)
- Biao Xiong
- School of Pharmacy
- Nantong University
- Nantong
- China
| | | | - Yuan Liu
- School of Pharmacy
- Nantong University
- Nantong
- China
| | - Yandan Bao
- School of Pharmacy
- Nantong University
- Nantong
- China
| | - Zhaoguo Liu
- School of Pharmacy
- Nantong University
- Nantong
- China
| | - Yanan Zhang
- School of Pharmacy
- Nantong University
- Nantong
- China
| | - Yong Ling
- School of Pharmacy
- Nantong University
- Nantong
- China
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7
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Shi D, Lin W, Zhang M, Wang N, Xu W. An Efficient Synthesis and Evaluation of Antitumor Activities of Functionalized Pyrano[2,3-b]quinolines. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13990] [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: 12/21/2022]
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8
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Balalaie S, Mirzaie S, Nikbakht A, Hamdan F, Rominger F, Navari R, Bijanzadeh HR. Indium-Catalyzed Intramolecular Hydroamidation of Alkynes: An Exo-Dig Cyclization for the Synthesis of Pyranoquinolines through Post-Transformational Reaction. Org Lett 2017; 19:6124-6127. [PMID: 29087201 DOI: 10.1021/acs.orglett.7b02603] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient approach for the synthesis of pyranoquinolines through the indium-catalyzed activation of alkynes is reported. Intramolecular hydroamidation of alkynes can proceed through alkyne activation by indium(III) and then 6-exo-dig cyclization, leading to a fused pyran ring with high selectivity, high atom economy, and good to excellent yields. The cyclization was accomplished through the oxygen, not the nitrogen, of the amide functional group.
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Affiliation(s)
- Saeed Balalaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences , Kermanshah, Iran
| | - Sattar Mirzaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
| | - Ali Nikbakht
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
| | - Fatima Hamdan
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
| | - Frank Rominger
- Organisch-Chemisches Institut der Universitaet Heidelberg , Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Razieh Navari
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
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9
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Alshareef HF, Mohamed HAEH, Salaheldin AM. Synthesis and Biological Evaluation of New Tacrine Analogues under Microwave Irradiation. Chem Pharm Bull (Tokyo) 2017; 65:732-738. [PMID: 28768927 DOI: 10.1248/cpb.c17-00113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Efficient routes to various kinds of heterocycles incorporating the p-halophenyl moiety have been synthesized. Different pyrrole derivatives have been synthesized, as well, by Thorpe-Ziegler cyclization. Therefore, we synthesized different analogues of tacrine by Friedländer reaction of o-amino nitriles (pyrazolo, furano and pyrrolo) with different cycloalkanones. The use of microwave irradiation leads to shorter production times and high product conversion. These synthesized compounds were biologically evaluated by Ellman's test on acetylcholinesterase inhibition.
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Affiliation(s)
| | - Heba Abd El Hady Mohamed
- Chemistry Department, Faculty of Applied Science, Umm Alqura University.,Department of Chemistry, Faculty of Science (Girl's), Al-Azhar University
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10
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de Los Rios C, Cano-Abad MF, Villarroya M, López MG. Chromaffin cells as a model to evaluate mechanisms of cell death and neuroprotective compounds. Pflugers Arch 2017; 470:187-198. [PMID: 28823085 DOI: 10.1007/s00424-017-2044-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 07/19/2017] [Accepted: 07/20/2017] [Indexed: 11/29/2022]
Abstract
In this review, we show how chromaffin cells have contributed to evaluate neuroprotective compounds with diverse mechanisms of action. Chromaffin cells are considered paraneurons, as they share many common features with neurons: (i) they synthesize, store, and release neurotransmitters upon stimulation and (ii) they express voltage-dependent calcium, sodium, and potassium channels, in addition to a wide variety of receptors. All these characteristics, together with the fact that primary cultures from bovine adrenal glands or chromaffin cells from the tumor pheochromocytoma cell line PC12 are easy to culture, make them an ideal model to study neurotoxic mechanisms and neuroprotective drugs. In the first part of this review, we will analyze the different cytotoxicity models related to calcium dyshomeostasis and neurodegenerative disorders like Alzheimer's or Parkinson's. Along the second part of the review, we describe how different classes of drugs have been evaluated in chromaffin cells to determine their neuroprotective profile in different neurodegenerative-related models.
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Affiliation(s)
- Cristobal de Los Rios
- Instituto Teófilo Hernando, Universidad Autónoma de Madrid, Madrid, Spain.,Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Madrid, Spain
| | - Maria F Cano-Abad
- Instituto Teófilo Hernando, Universidad Autónoma de Madrid, Madrid, Spain.,Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Manuela G López
- Instituto Teófilo Hernando, Universidad Autónoma de Madrid, Madrid, Spain. .,Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain. .,Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Madrid, Spain.
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11
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Boulebd H, Ismaili L, Bartolini M, Bouraiou A, Andrisano V, Martin H, Bonet A, Moraleda I, Iriepa I, Chioua M, Belfaitah A, Marco-Contelles J. Imidazopyranotacrines as Non-Hepatotoxic, Selective Acetylcholinesterase Inhibitors, and Antioxidant Agents for Alzheimer's Disease Therapy. Molecules 2016; 21:400. [PMID: 27023499 PMCID: PMC6273229 DOI: 10.3390/molecules21040400] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/11/2016] [Accepted: 03/15/2016] [Indexed: 12/03/2022] Open
Abstract
Herein we describe the synthesis and in vitro biological evaluation of thirteen new, racemic, diversely functionalized imidazo pyranotacrines as non-hepatotoxic, multipotent tacrine analogues. Among these compounds, 1-(5-amino-2-methyl-4-(1-methyl-1H-imidazol-2-yl)-6,7,8,9-tetrahydro-4H-pyrano[2,3-b]quinolin-3-yl)ethan-1-one (4) is non-hepatotoxic (cell viability assay on HepG2 cells), a selective but moderately potent EeAChE inhibitor (IC50 = 38.7 ± 1.7 μM), and a very potent antioxidant agent on the basis of the ORAC test (2.31 ± 0.29 μmol·Trolox/μmol compound).
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Affiliation(s)
- Houssem Boulebd
- Equipe de Synthèse de Molécules à Objectif Thérapeutique, Laboratoire des Produits Naturels d'Origine Végétale et de Synthèse Organique (PHYSYNOR), Université des frères Mentouri, Campus de Chaabat-Ersas, Constantine 25000, Algeria.
| | - Lhassane Ismaili
- Laboratoire de Chimie Organique et Thérapeutique, Neurosciences Intégratives et Cliniques EA 481, UFR SMP, Univ. Franche-Comté, Univ. Bourgogne Franche-Comté, 19, rue Ambroise Paré, F-Besançon 25000, France.
| | - Manuela Bartolini
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, Bologna 40126, Italy.
| | - Abdelmalek Bouraiou
- Equipe de Synthèse de Molécules à Objectif Thérapeutique, Laboratoire des Produits Naturels d'Origine Végétale et de Synthèse Organique (PHYSYNOR), Université des frères Mentouri, Campus de Chaabat-Ersas, Constantine 25000, Algeria.
| | - Vincenza Andrisano
- Department for Life Quality Studies, University of Bologna, Corso d'Augusto, 237, Rimini 47921, Italy.
| | - Helene Martin
- Laboratoire de Toxicologie Cellulaire, EA 4267, Univ. Bourgogne Franche-Comté, 19, rue Ambroise Paré, Besançon Cedex 25030, France.
| | - Alexandre Bonet
- Laboratoire de Toxicologie Cellulaire, EA 4267, Univ. Bourgogne Franche-Comté, 19, rue Ambroise Paré, Besançon Cedex 25030, France.
| | - Ignacio Moraleda
- Departamento de Química Orgánica y Química Inorgánica, Facultad de Biología, Ciencias Ambientales y Química, Universidad de Alcalá, Ctra. Barcelona, Km. 33.5, Alcalá de Henares 28817, Spain.
| | - Isabel Iriepa
- Departamento de Química Orgánica y Química Inorgánica, Facultad de Biología, Ciencias Ambientales y Química, Universidad de Alcalá, Ctra. Barcelona, Km. 33.5, Alcalá de Henares 28817, Spain.
| | - Mourad Chioua
- Laboratory of Medicinal Chemistry (IQOG, CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain.
| | - Ali Belfaitah
- Equipe de Synthèse de Molécules à Objectif Thérapeutique, Laboratoire des Produits Naturels d'Origine Végétale et de Synthèse Organique (PHYSYNOR), Université des frères Mentouri, Campus de Chaabat-Ersas, Constantine 25000, Algeria.
| | - José Marco-Contelles
- Laboratory of Medicinal Chemistry (IQOG, CSIC), C/Juan de la Cierva 3, Madrid 28006, Spain.
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12
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Tenti G, Parada E, León R, Egea J, Martínez-Revelles S, Briones AM, Sridharan V, López MG, Ramos MT, Menéndez JC. New 5-Unsubstituted Dihydropyridines with Improved CaV1.3 Selectivity as Potential Neuroprotective Agents against Ischemic Injury. J Med Chem 2014; 57:4313-23. [DOI: 10.1021/jm500263v] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Giammarco Tenti
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Esther Parada
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - Rafael León
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
| | - Javier Egea
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - Sonia Martínez-Revelles
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Instituto de Investigación del Hospital Universitario La Paz (IdiPAZ), 28029 Madrid, Spain
| | - Ana María Briones
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Instituto de Investigación del Hospital Universitario La Paz (IdiPAZ), 28029 Madrid, Spain
| | - Vellaisamy Sridharan
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - Manuela G. López
- Instituto Teófilo Hernando y Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Instituto de Investigación del Hospital Universitario La Paz (IdiPAZ), 28029 Madrid, Spain
| | - María Teresa Ramos
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - J. Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
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13
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Dias KST, Viegas C. Multi-Target Directed Drugs: A Modern Approach for Design of New Drugs for the treatment of Alzheimer's Disease. Curr Neuropharmacol 2014; 12:239-55. [PMID: 24851088 PMCID: PMC4023454 DOI: 10.2174/1570159x1203140511153200] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 08/30/2013] [Accepted: 10/21/2014] [Indexed: 12/18/2022] Open
Abstract
Alzheimer's disease (AD) is a complex neurodegenerative disorder with a multi-faceted pathogenesis. So far, the therapeutic paradigm "one-compound-one-target" has failed and despite enormous efforts to elucidate the pathophysiology of AD, the disease is still incurable. The multiple factors involved in AD include amyloid aggregation to form insoluble neurotoxic plaques of Aβ, hyperphosphorylation of tau protein, oxidative stress, calcium imbalance, mitochondrial dysfunction and deterioration of synaptic transmission. These factors together, accentuate changes in the CNS homeostasis, starting a complex process of interconnected physiological damage, leading to cognitive and memory impairment and neuronal death. A recent approach for the rational design of new drug candidates, also called multitarget-directed ligand (MTDL) approach, has gained increasing attention by many research groups, which have developed a variety of hybrid compounds acting simultaneously on diverse biological targets. This review aims to show some recent advances and examples of the exploitation of MTDL approach in the rational design of novel drug candidate prototypes for the treatment of AD.
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Affiliation(s)
- Kris Simone Tranches Dias
- LFQM - Laboratório de Fitoquímica e Química Medicinal, Institute of Chemistry, Federal University of Alfenas, 37130-000, Brazil; ; Programa de Pós-Graduação em Química, Federal University of Alfenas, 37130-000, Brazil
| | - Claudio Viegas
- LFQM - Laboratório de Fitoquímica e Química Medicinal, Institute of Chemistry, Federal University of Alfenas, 37130-000, Brazil; ; Programa de Pós-Graduação em Química, Federal University of Alfenas, 37130-000, Brazil
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14
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Canto RFS, Barbosa FAR, Nascimento V, de Oliveira AS, Brighente IMC, Braga AL. Design, synthesis and evaluation of seleno-dihydropyrimidinones as potential multi-targeted therapeutics for Alzheimer's disease. Org Biomol Chem 2014; 12:3470-7. [DOI: 10.1039/c4ob00598h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the design, synthesis and evaluation of a series of seleno-dihydropyrimidinones as potential multi-targeted therapeutics for Alzheimer's disease.
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Affiliation(s)
- Rômulo F. S. Canto
- Laboratorio de Sintese de Substancias de Selenio Bioativas
- Centro de Ciencias Fisicas e Matematicas
- Departamento de Quimica
- Universidade Federal de Santa Catarina
- Florianopolis, Brazil
| | - Flavio A. R. Barbosa
- Laboratorio de Sintese de Substancias de Selenio Bioativas
- Centro de Ciencias Fisicas e Matematicas
- Departamento de Quimica
- Universidade Federal de Santa Catarina
- Florianopolis, Brazil
| | - Vanessa Nascimento
- Laboratorio de Sintese de Substancias de Selenio Bioativas
- Centro de Ciencias Fisicas e Matematicas
- Departamento de Quimica
- Universidade Federal de Santa Catarina
- Florianopolis, Brazil
| | - Aldo S. de Oliveira
- CFM
- Departamento de Quimica
- Universidade Federal de Santa Catarina
- Florianopolis, Brazil
| | - Inês M. C. Brighente
- CFM
- Departamento de Quimica
- Universidade Federal de Santa Catarina
- Florianopolis, Brazil
| | - Antonio Luiz Braga
- Laboratorio de Sintese de Substancias de Selenio Bioativas
- Centro de Ciencias Fisicas e Matematicas
- Departamento de Quimica
- Universidade Federal de Santa Catarina
- Florianopolis, Brazil
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15
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Yadlapalli RK, Chourasia O, Perali RS. A facile one-pot synthesis of 2-thioxo-dihydropyrimidines and polyfunctionalized pyran derivatives as mimics of novel calcium channel modulators. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Duda B, Tverdomed SN, Ionin BI, Röschenthaler GV. Base-Promoted Heterocyclization of Fluorinated Alkynylphosphonates with Select ortho-Aminobenzonitriles. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200379] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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One-pot synthesis of pyrano[4,3-b]quinolinones from 2-alkynyl-3-formylquinolines via oxidative 6-endo-dig ring closure. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Aggarwal T, Imam M, Kaushik NK, Chauhan VS, Verma AK. Pyrano[4,3-b]quinolines library generation via iodocyclization and palladium-catalyzed coupling reactions. ACS COMBINATORIAL SCIENCE 2011; 13:530-6. [PMID: 21793575 DOI: 10.1021/co200100z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Synthesis of a 80-member library of novel pyrano[4,3-b]quinolines in solution-phase is reported. The key intermediate, 4-iodopyrano[4,3-b]quinolines were synthesized by the electrophilic iodocyclization of corresponding ortho-alkynyl aldehydes in good to excellent yields under mild reaction conditions. Subsequently a diverse set of libraries was generated by employing palladium-catalyzed Suzuki-Miyaura, Heck, and Sonogashira coupling reactions on 4-iodopyrano[4,3-b]quinolines. In this way, a series of structurally different and biologically interesting molecules were obtained. Some of the selected compounds were screened against 3D7 strains of Plasmodium falciparum for antimalarial activity. Suzuki coupling products 6{3} and 6{21} and Heck coupling product 8{12} exhibit promising antimalarial activity.
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Affiliation(s)
- Trapti Aggarwal
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Maryam Imam
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Naveen K. Kaushik
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Virander S. Chauhan
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
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19
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Synthesis and X-ray structures of new cycloalka[e]pyrano[2,3-b]pyridine derivatives: novel tacrine analogues. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Mahajan N, Koul S, Razdan TK. Bismuth triflate-L(−)-proline catalyzed synthesis of chiral 2,5-diaryl-2,3-dihydropyrano[2,3-b]quinolin-4-ones. J Heterocycl Chem 2011. [DOI: 10.1002/jhet.762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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León R, Garcia AG, Marco-Contelles J. Recent advances in the multitarget-directed ligands approach for the treatment of Alzheimer's disease. Med Res Rev 2011; 33:139-89. [PMID: 21793014 DOI: 10.1002/med.20248] [Citation(s) in RCA: 354] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
With 27 million cases worldwide documented in 2006, Alzheimer's disease (AD) constitutes an overwhelming health, social, economic, and political problem to nations. Unless a new medicine capable to delay disease progression is found, the number of cases will reach 107 million in 2050. So far, the therapeutic paradigm one-compound-one-target has failed. This could be due to the multiple pathogenic mechanisms involved in AD including amyloid β (Aβ) aggregation to form plaques, τ hyperphosphorylation to disrupt microtubule to form neurofibrillary tangles, calcium imbalance, enhanced oxidative stress, impaired mitochondrial function, apoptotic neuronal death, and deterioration of synaptic transmission, particularly at cholinergic neurons. Approximately 100 compounds are presently been investigated directed to single targets, namely inhibitors of β and γ secretase, vaccines or antibodies that clear Aβ, metal chelators to inhibit Aβ aggregation, blockers of glycogen synthase kinase 3β, enhancers of mitochondrial function, antioxidants, modulators of calcium-permeable channels such as voltage-dependent calcium channels, N-methyl-D-aspartate receptors for glutamate, or enhancers of cholinergic neurotransmission such as inhibitors of acetylcholinesterase or butyrylcholinesterase. In view of this complex pathogenic mechanisms, and the successful treatment of chronic diseases such as HIV or cancer, with multiple drugs having complementary mechanisms of action, the concern is growing that AD could better be treated with a single compound targeting two or more of the pathogenic mechanisms leading to neuronal death. This review summarizes the current therapeutic strategies based on the paradigm one-compound-various targets to treat AD. A treatment that delays disease onset and/or progression by 5 years could halve the number of people requiring institutionalization and/or dying from AD.
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Affiliation(s)
- Rafael León
- Department of Chemistry, University of Cambridge, Cambridge, Lensfield road, Cambridge CB2 1EW, United Kingdom.
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22
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Silva D, Chioua M, Samadi A, Carmo Carreiras M, Jimeno ML, Mendes E, Ríos CDL, Romero A, Villarroya M, López MG, Marco-Contelles J. Synthesis and pharmacological assessment of diversely substituted pyrazolo[3,4-b]quinoline, and benzo[b]pyrazolo[4,3-g][1,8]naphthyridine derivatives. Eur J Med Chem 2011; 46:4676-81. [PMID: 21715067 DOI: 10.1016/j.ejmech.2011.05.068] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 05/20/2011] [Accepted: 05/26/2011] [Indexed: 01/14/2023]
Abstract
The synthesis and pharmacological analyses of a number of pyrazolo[3,4-b]quinoline and benzo[b]pyrazolo[4,3-g][1,8]naphthyridine derivatives are reported. We have synthesized the diversely substituted tacrine analogues 1-6, by Friedländer-type reaction of readily available o-amino-1-methyl-pyrazole-dicarbonitriles with cyclohexanone. The biological evaluation showed that pyrazolotacrines 1-6 are inhibitors of Electrophorus electricus acetylcholinesterase (EeAChE), in the micromolar range, and quite selective in respect to serum horse butyrylcholinesterase (eqBuChE) inhibition; the most interesting inhibitor is N-(5-amino-1-methyl-6,7,8,9-tetrahydro-1H-benzo[b]pyrazolo[4,3-g][1,8]naphthyridin-3-yl)acetamide (5) [IC(50) (EeAChE) = 0.069 ± 0.006 μM; IC(50) (eqBuChE) = 6.3 ± 0.6 μM]. Kinetic studies showed that compound 5 is a mixed-type inhibitor of EeAChE (K(i) = 155 nM). Inhibitor 5 showed a 45% neuroprotection value against rotenone/oligomycin A-induced neuronal death.
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Affiliation(s)
- Daniel Silva
- Research Institute for Medicines and Pharmaceutical Sciences, UL, Faculty of Pharmacy, University of Lisbon, Av Prof Gama Pinto, 1649-003 Lisbon, Portugal
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23
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Tomassoli I, Ismaili L, Pudlo M, de Los Ríos C, Soriano E, Colmena I, Gandía L, Rivas L, Samadi A, Marco-Contelles J, Refouvelet B. Synthesis, biological assessment and molecular modeling of new dihydroquinoline-3-carboxamides and dihydroquinoline-3-carbohydrazide derivatives as cholinesterase inhibitors, and Ca channel antagonists. Eur J Med Chem 2010; 46:1-10. [PMID: 21111515 DOI: 10.1016/j.ejmech.2010.08.054] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Revised: 07/31/2010] [Accepted: 08/25/2010] [Indexed: 11/29/2022]
Abstract
The synthesis, biological evaluation, and molecular modeling of new 4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamides(4), 4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carbohydrazide (6), and some hexahydropyrimido[5,4-c]quinoline-2,5-diones (9) produced earlier by our laboratory, as AChE/BuChE inhibitors, is described. From these analyses compound 4c resulted equipotent regarding the inhibition of cholinesterases'; inhibitors 6k, 9a, 9b were selective for AChE, whereas product 4d proved selective for BuChE. Docking analysis has been carry out in order to identify the binding mode in the active site, and to explain the observed selectivities. Only compound 9a has been shown to decrease K(+)-induced calcium signals in bovine chromaffin cells.
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Affiliation(s)
- Isabelle Tomassoli
- Laboratoire de Chimie Thérapeutique Equipe 2SBP EA4267, 4 place saint Jacques 25030 Besancon Cedex, France.
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24
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Verma AK, Rustagi V, Aggarwal T, Singh AP. Iodine-Mediated Solvent-Controlled Selective Electrophilic Cyclization and Oxidative Esterification of o-Alkynyl Aldehydes: An Easy Access to Pyranoquinolines, Pyranoquinolinones, and Isocumarins. J Org Chem 2010; 75:7691-703. [DOI: 10.1021/jo101526b] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Amit P. Singh
- Bio-inorganic Chemistry Research Laboratory, Department of Chemistry
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25
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Salaheldin A, Oliveira-Campos A, Parpot P, Rodrigues L, Oliveira M, Feixoto F. Synthesis of New Tacrine Analogues from 4-Amino-1H-pyrrole-3-carbonitrile. Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900190] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Santos Pisoni DD, Sobieski da Costa J, Gamba D, Petzhold CL, César de Amorim Borges A, Ceschi MA, Lunardi P, Saraiva Gonçalves CA. Synthesis and AChE inhibitory activity of new chiral tetrahydroacridine analogues from terpenic cyclanones. Eur J Med Chem 2010; 45:526-35. [DOI: 10.1016/j.ejmech.2009.10.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2009] [Revised: 10/14/2009] [Accepted: 10/27/2009] [Indexed: 10/20/2022]
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27
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Verma AK, Aggarwal T, Rustagi V, Larock RC. Iodine-catalyzed and solvent-controlled selective electrophilic cyclization and oxidative esterification of ortho-alkynyl aldehydes. Chem Commun (Camb) 2010; 46:4064-6. [DOI: 10.1039/b927185f] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Arce MP, Rodríguez-Franco MI, González-Muñoz GC, Pérez C, López B, Villarroya M, López MG, García AG, Conde S. Neuroprotective and Cholinergic Properties of Multifunctional Glutamic Acid Derivatives for the Treatment of Alzheimer’s Disease. J Med Chem 2009; 52:7249-57. [DOI: 10.1021/jm900628z] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Mariana P. Arce
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | | | | | - Concepción Pérez
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Beatriz López
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Mercedes Villarroya
- Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Arzobispo Morcillo 4, 28029 Madrid, Spain
| | - Manuela G. López
- Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Arzobispo Morcillo 4, 28029 Madrid, Spain
| | - Antonio G. García
- Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, Arzobispo Morcillo 4, 28029 Madrid, Spain
| | - Santiago Conde
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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29
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Selvam NP, Babu TH, Perumal PT. A simple and convenient approach to the Friedländer synthesis of pyrano[2,3-b]pyridines. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.08.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Chinnakali K, Sudha D, Jayagobi M, Raghunathan R, Fun HK. 1-Ethyl-2-tosyl-4,4,6-trimethyl-2,3,3a,4-tetra-hydro-1H-pyrrolo[3,4-c]pyrano[6,5-b]quinoline-11(6H)-one monohydrate. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o2099-100. [PMID: 21577515 PMCID: PMC2970140 DOI: 10.1107/s1600536809030761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Accepted: 08/03/2009] [Indexed: 11/18/2022]
Abstract
In the title compound, C26H30N2O4S·H2O, the pyrrolidine and dihydropyran rings adopt envelope conformations and they are cis-fused. The sulfonyl group has a distorted tetrahedral geometry. In the crystal structure, the molecules are linked into a ribbon-like structure along the a axis by O/C—H⋯O hydrogen bonds involving water molecules and C—H⋯π interactions involving the sulfonyl-bound phenyl ring. Adjacent ribbons are cross-linked via C—H⋯O hydrogen bonds involving a sulfonyl O atom and C—H⋯π interactions involving the pyridinone ring.
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31
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Marco-Contelles J, Pérez-Mayoral E, Samadi A, Carreiras MDC, Soriano E. Recent Advances in the Friedländer Reaction. Chem Rev 2009; 109:2652-71. [DOI: 10.1021/cr800482c] [Citation(s) in RCA: 505] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- José Marco-Contelles
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - Elena Pérez-Mayoral
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - Abdelouahid Samadi
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - María do Carmo Carreiras
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - Elena Soriano
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
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32
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Zhu Y, Xiao K, Ma L, Xiong B, Fu Y, Yu H, Wang W, Wang X, Hu D, Peng H, Li J, Gong Q, Chai Q, Tang X, Zhang H, Li J, Shen J. Design, synthesis and biological evaluation of novel dual inhibitors of acetylcholinesterase and beta-secretase. Bioorg Med Chem 2009; 17:1600-13. [PMID: 19162488 DOI: 10.1016/j.bmc.2008.12.067] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2008] [Revised: 12/26/2008] [Accepted: 12/30/2008] [Indexed: 11/27/2022]
Abstract
To explore novel effective drugs for the treatment of Alzheimer's disease (AD), a series of dual inhibitors of acetylcholineterase (AChE) and beta-secretase (BACE-1) were designed based on the multi-target-directed ligands strategy. Among them, inhibitor 28 exhibited good dual potency in enzyme inhibitory potency assay (BACE-1: IC(50)=0.567 microM; AChE: IC(50)=1.83 microM), and also showed excellent inhibitory effects on Abeta production of APP transfected HEK293 cells (IC(50)=98.7 nM) and mild protective effect against hydrogen peroxide (H(2)O(2))-induced PC12 cell injury. Encouragingly, intracerebroventricular injection of 28 into amyloid precursor protein (APP) transgenic mice caused a 29% reduction of Abeta(1-40) production. Therefore, 28 was demonstrated as a good lead compound for the further study and more importantly, the strategy of AChE and BACE-1 dual inhibitors might be a promising direction for developing novel drugs for AD patients.
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Affiliation(s)
- Yiping Zhu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, PR China
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33
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Rodrigues LM, Francisco CS, Oliveira-Campos AMF, Salaheldin AM. Synthesis of Tacrine Analogs Derived from N-Aryl-5-amino-4-cyanopyrazoles. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910802331638] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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New tacrine-dihydropyridine hybrids that inhibit acetylcholinesterase, calcium entry, and exhibit neuroprotection properties. Bioorg Med Chem 2008; 16:7759-69. [DOI: 10.1016/j.bmc.2008.07.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2008] [Revised: 06/24/2008] [Accepted: 07/02/2008] [Indexed: 11/17/2022]
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35
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Gabriele B, Mancuso R, Salerno G, Lupinacci E, Ruffolo G, Costa M. Versatile Synthesis of Quinoline-3-Carboxylic Esters and Indol-2-Acetic Esters by Palladium-Catalyzed Carbonylation of 1-(2-Aminoaryl)-2-Yn-1-Ols. J Org Chem 2008; 73:4971-7. [DOI: 10.1021/jo8006495] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bartolo Gabriele
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, and Dipartimento di Chimica Organica e Industriale, Università di Parma, 43100 Parma, Italy
| | - Raffaella Mancuso
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, and Dipartimento di Chimica Organica e Industriale, Università di Parma, 43100 Parma, Italy
| | - Giuseppe Salerno
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, and Dipartimento di Chimica Organica e Industriale, Università di Parma, 43100 Parma, Italy
| | - Elvira Lupinacci
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, and Dipartimento di Chimica Organica e Industriale, Università di Parma, 43100 Parma, Italy
| | - Giuseppe Ruffolo
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, and Dipartimento di Chimica Organica e Industriale, Università di Parma, 43100 Parma, Italy
| | - Mirco Costa
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (Cosenza), Italy, and Dipartimento di Chimica Organica e Industriale, Università di Parma, 43100 Parma, Italy
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36
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Cavalli A, Bolognesi ML, Minarini A, Rosini M, Tumiatti V, Recanatini M, Melchiorre C. Multi-target-directed ligands to combat neurodegenerative diseases. J Med Chem 2008; 51:347-72. [PMID: 18181565 DOI: 10.1021/jm7009364] [Citation(s) in RCA: 833] [Impact Index Per Article: 52.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Andrea Cavalli
- Department of Pharmaceutical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy.
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37
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Zhang Q, Zhang Z, Yan Z, Liu Q, Wang T. A New Efficient Synthesis of Pyranoquinolines from 1-Acetyl N-Aryl Cyclopentanecarboxamides. Org Lett 2007; 9:3651-3. [PMID: 17676750 DOI: 10.1021/ol701536q] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new efficient synthesis of pyrano[2,3-b]quinoline derivatives is developed via the H2SO4-mediated tandem cyclization/ring-opening/recyclization reaction of readily available 1-acetyl N-aryl cyclopentanecarboxamides, during which a novel ring-cleavage fashion of the cyclopentane unit is involved and possible mechanisms are discussed.
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Affiliation(s)
- Qian Zhang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China.
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