1
|
Zhao X, Liu Z, Liu H, Guo J, Long S. Hybrid molecules based on caffeic acid as potential therapeutics: A focused review. Eur J Med Chem 2022; 243:114745. [PMID: 36152388 DOI: 10.1016/j.ejmech.2022.114745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 09/03/2022] [Accepted: 09/03/2022] [Indexed: 01/29/2023]
Abstract
Caffeic acid-based compounds possess a high degree of structural diversity and show a variety of pharmacological properties, providing a useful framework for the discovery of new therapeutic agents. They are well-known analogues of antioxidants found in many natural products and synthetic compounds. The present review surveys the recent developments in structure-activity relationships (SAR) and mechanism of action (MOA) of various caffeic acid-containing compounds that play important roles in the design and synthesis of new bioactive molecules with antioxidant, antidiabetic, antiviral, antibacterial, anticancer, anti-inflammatory, and other properties. This review should provide inspiration to scientists in the research fields of organic synthesis and medicinal chemistry related to the development of new antioxidants with versatile therapeutic potential.
Collapse
Affiliation(s)
- Xue Zhao
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 Optics Valley 1st Rd, East Lake New Technology Development District, Wuhan, Hubei, 430205, China
| | - Ziwei Liu
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 Optics Valley 1st Rd, East Lake New Technology Development District, Wuhan, Hubei, 430205, China
| | - Hao Liu
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 Optics Valley 1st Rd, East Lake New Technology Development District, Wuhan, Hubei, 430205, China
| | - Ju Guo
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 Optics Valley 1st Rd, East Lake New Technology Development District, Wuhan, Hubei, 430205, China
| | - Sihui Long
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, 206 Optics Valley 1st Rd, East Lake New Technology Development District, Wuhan, Hubei, 430205, China.
| |
Collapse
|
2
|
Song Z, Jia Y, Zhang D, Wang D. DMAP Mediated Efficient Construction of Functionalized Chromenes through One‐Pot Reaction of
para
‐Quinone Methides with Allenoates. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100112] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zefeng Song
- Molecular Synthesis Center Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China & Laboratory for Marine Drugs and Bioproducts and Open Studio for Druggability Research of Marine Natural Products Pilot NLMST Qingdao China
| | - Yuping Jia
- Shandong Academy of Pharmaceutical Sciences Jinan Shandong China
| | - Daizhou Zhang
- Shandong Academy of Pharmaceutical Sciences Jinan Shandong China
| | - De Wang
- Molecular Synthesis Center Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China & Laboratory for Marine Drugs and Bioproducts and Open Studio for Druggability Research of Marine Natural Products Pilot NLMST Qingdao China
- State Key Laboratory of Chemical Oncogenomics Key Laboratory of Chemical Genomics Peking University Shenzhen Graduate School Shenzhen 518055 Guangdong China
| |
Collapse
|
3
|
Godlewska-Żyłkiewicz B, Świsłocka R, Kalinowska M, Golonko A, Świderski G, Arciszewska Ż, Nalewajko-Sieliwoniuk E, Naumowicz M, Lewandowski W. Biologically Active Compounds of Plants: Structure-Related Antioxidant, Microbiological and Cytotoxic Activity of Selected Carboxylic Acids. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4454. [PMID: 33049979 PMCID: PMC7579235 DOI: 10.3390/ma13194454] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/28/2020] [Accepted: 10/01/2020] [Indexed: 12/12/2022]
Abstract
Natural carboxylic acids are plant-derived compounds that are known to possess biological activity. The aim of this review was to compare the effect of structural differences of the selected carboxylic acids (benzoic acid (BA), cinnamic acid (CinA), p-coumaric acid (p-CA), caffeic acid (CFA), rosmarinic acid (RA), and chicoric acid (ChA)) on the antioxidant, antimicrobial, and cytotoxic activity. The studied compounds were arranged in a logic sequence of increasing number of hydroxyl groups and conjugated bonds in order to investigate the correlations between the structure and bioactivity. A review of the literature revealed that RA exhibited the highest antioxidant activity and this property decreased in the following order: RA > CFA ~ ChA > p-CA > CinA > BA. In the case of antimicrobial properties, structure-activity relationships were not easy to observe as they depended on the microbial strain and the experimental conditions. The highest antimicrobial activity was found for CFA and CinA, while the lowest for RA. Taking into account anti-cancer properties of studied NCA, it seems that the presence of hydroxyl groups had an influence on intermolecular interactions and the cytotoxic potential of the molecules, whereas the carboxyl group participated in the chelation of endogenous transition metal ions.
Collapse
Affiliation(s)
- Beata Godlewska-Żyłkiewicz
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bialystok, K. Ciołkowskiego 1K, 15–245 Białystok, Poland; (Ż.A.); (E.N.-S.)
| | - Renata Świsłocka
- Department of Chemistry, Biology and Biotechnology, Bialystok University of Technology, Wiejska 45E, 15–351 Białystok, Poland; (R.Ś.); (M.K.); (G.Ś.)
| | - Monika Kalinowska
- Department of Chemistry, Biology and Biotechnology, Bialystok University of Technology, Wiejska 45E, 15–351 Białystok, Poland; (R.Ś.); (M.K.); (G.Ś.)
| | - Aleksandra Golonko
- Institute of Agricultural and Food Biotechnology, Rakowiecka 36, 02–532 Warsaw, Poland;
| | - Grzegorz Świderski
- Department of Chemistry, Biology and Biotechnology, Bialystok University of Technology, Wiejska 45E, 15–351 Białystok, Poland; (R.Ś.); (M.K.); (G.Ś.)
| | - Żaneta Arciszewska
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bialystok, K. Ciołkowskiego 1K, 15–245 Białystok, Poland; (Ż.A.); (E.N.-S.)
| | - Edyta Nalewajko-Sieliwoniuk
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bialystok, K. Ciołkowskiego 1K, 15–245 Białystok, Poland; (Ż.A.); (E.N.-S.)
| | - Monika Naumowicz
- Department of Physical Chemistry, Faculty of Chemistry, University of Bialystok, K. Ciołkowskiego 1K, 15–245 Białystok, Poland;
| | - Włodzimierz Lewandowski
- Department of Chemistry, Biology and Biotechnology, Bialystok University of Technology, Wiejska 45E, 15–351 Białystok, Poland; (R.Ś.); (M.K.); (G.Ś.)
| |
Collapse
|
4
|
Liu P, Wang PS. Palladium-catalyzed Asymmetric Allylic C–H Oxidation for the Formal Synthesis of Gonytolide C. CHEM LETT 2017. [DOI: 10.1246/cl.170406] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Peng Liu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Pu-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| |
Collapse
|
5
|
Xiao Y, Lin JB, Zhao YN, Liu JY, Xu PF. Exploring the Reactivity of Nitro-Activated 1,3-Enynes in an Organocatalytic One-Pot, Three-Component Coupling Reaction: A Tandem Catalytic Approach to a Novel 3-Nitrochroman Scaffold. Org Lett 2016; 18:6276-6279. [DOI: 10.1021/acs.orglett.6b03073] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yu Xiao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yin-Na Zhao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jin-Yu Liu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
6
|
Shard A, Rawat K, Sinha AK, Padwad Y, Kumar D. Divergent Synthesis of Styryl-Cinnamate Hybrid Analogues Inspired by the Natural Product Salvianolic Acid F as a Premise To Investigate Their Anticancer Activity and Its Metabolomic Profiling. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Amit Shard
- Natural Product Chemistry and Process Development Division; CSIR - Institute of Himalayan Bioresource Technology; 176061 (H.P.) Palampur India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
| | - Kiran Rawat
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Food and Nutraceuticals Division; Pharmacology and Toxicology Lab; CSIR - Institute of Himalayan Bioresource Technology; 176061 (H.P.) Palampur India
| | - Arun K. Sinha
- Natural Product Chemistry and Process Development Division; CSIR - Institute of Himalayan Bioresource Technology; 176061 (H.P.) Palampur India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Medicinal and Process Chemistry; CSIR - Central Drug Research Institute; 226031 (U.P.) Lucknow India
| | - Yogendra Padwad
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Food and Nutraceuticals Division; Pharmacology and Toxicology Lab; CSIR - Institute of Himalayan Bioresource Technology; 176061 (H.P.) Palampur India
| | - Dinesh Kumar
- Natural Product Chemistry and Process Development Division; CSIR - Institute of Himalayan Bioresource Technology; 176061 (H.P.) Palampur India
| |
Collapse
|
7
|
Yushkova YV, Morozov SV, Chernyak EI, Grigor’ev IA. Synthesis of Ionic Biologically Active Conjugates from Trolox and α-Tocopherol Succinates. Chem Nat Compd 2016. [DOI: 10.1007/s10600-016-1850-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
8
|
Hydrogen-Atom Transfer Reactions. Top Curr Chem (Cham) 2016; 374:17. [DOI: 10.1007/s41061-016-0018-2] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/01/2016] [Indexed: 02/04/2023]
|
9
|
Tu YL, Chen QH, Wang SN, Uri A, Yang XH, Chu JQ, Chen JK, Luo BL, Chen XH, Wen SJ, Pi RB. Discovery of lipoic acid-4-phenyl-1H-pyrazole hybrids as novel bifunctional ROCK inhibitors with antioxidant activity. RSC Adv 2016. [DOI: 10.1039/c6ra12081d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A potently selective ROCK2 inhibitor with antioxidative properties.
Collapse
|
10
|
Bariamis SE, Magoulas GE, Grafanaki K, Pontiki E, Tsegenidis T, Athanassopoulos CM, Maroulis G, Papaioannou D, Hadjipavlou-Litina D. Synthesis and biological evaluation of new C-10 substituted dithranol pleiotropic hybrids. Bioorg Med Chem 2015; 23:7251-63. [PMID: 26515039 DOI: 10.1016/j.bmc.2015.10.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 10/06/2015] [Accepted: 10/15/2015] [Indexed: 11/26/2022]
Abstract
Selective alkylation of the antipsoriatic drug dithranol (DTR) at C-10 with tert-butyl bromoacetate, followed by acid-mediated deprotection, produced the corresponding carboxylic acid 4 which was coupled with selectively protected polyamines (PAs), such as putrescine (PUT), spermidine (SPD) and spermine (SPM), dopamine and aliphatic amines and substituted benzylamines producing a series of DTR-PA hybrids, after acid-mediated deprotection, as well as simple amides. The compounds were tested as antioxidants and inhibitors of lipoxygenase (LOX). The amides 4,4'-dimethoxybenzhydrylamide 13 (86% and 95%), 2,4-dimethoxybenzylamide 12 (87% and 81%) and dodecylamide 9 (98% and 74%), and the hybrid DTR-SPM (7) (93% and 87%), showed the highest antioxidant activity in the DPPH and AAPH assays, whereas the most potent inhibitors of LOX were amide 13 (IC50=7 μM), the benzylamide 10 (IC50=7.9 μM) and the butylamide 8 (IC50=10 μM). Molecular binding studies showed that binding of these derivatives into the hydrophobic domain blocks approach of substrate to the active site, inhibiting soybean LOX. Amide 13 presented the highest anti-inflammatory activity (79.7%). The DTR moiety was absolutely necessary for securing high anti-inflammatory potency. Ethyl ester 3 (IC50=0.357 μM) and the amides 9 (IC50=0.022 μM) and 13 (IC50=0.56 μM) exhibited higher antiproliferative activity than DTR (IC50=0.945 μM) on HaCaT keratinocytes whereas amide 13 generally presented better cytocompatibility. Amide 13 is a very promising lead compound for further development as an anti-inflammatory and antiproliferative agent.
Collapse
Affiliation(s)
- Stavros E Bariamis
- Department of Chemistry, School of Natural Sciences, University of Patras, 26504 Patras, Greece
| | - George E Magoulas
- Department of Chemistry, School of Natural Sciences, University of Patras, 26504 Patras, Greece
| | - Katerina Grafanaki
- Laboratory of Biochemistry, Department of Medicine, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Eleni Pontiki
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Theodore Tsegenidis
- Department of Chemistry, School of Natural Sciences, University of Patras, 26504 Patras, Greece
| | | | - George Maroulis
- Department of Chemistry, School of Natural Sciences, University of Patras, 26504 Patras, Greece
| | - Dionissios Papaioannou
- Department of Chemistry, School of Natural Sciences, University of Patras, 26504 Patras, Greece.
| | - Dimitra Hadjipavlou-Litina
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| |
Collapse
|
11
|
|
12
|
Wang PS, Liu P, Zhai YJ, Lin HC, Han ZY, Gong LZ. Asymmetric Allylic C–H Oxidation for the Synthesis of Chromans. J Am Chem Soc 2015; 137:12732-5. [DOI: 10.1021/jacs.5b08477] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Pu-Sheng Wang
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Peng Liu
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yu-Jia Zhai
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hua-Chen Lin
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-Yong Han
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liu-Zhu Gong
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, China
| |
Collapse
|
13
|
Koukoulitsa C, Villalonga-Barber C, Csonka R, Alexi X, Leonis G, Dellis D, Hamelink E, Belda O, Steele BR, Micha-Screttas M, Alexis MN, Papadopoulos MG, Mavromoustakos T. Biological and computational evaluation of resveratrol inhibitors against Alzheimer's disease. J Enzyme Inhib Med Chem 2015; 31:67-77. [PMID: 26147348 DOI: 10.3109/14756366.2014.1003928] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It has been reported that beta amyloid induces production of radical oxygen species and oxidative stress in neuronal cells, which in turn upregulates β-secretase (BACE-1) expression and beta amyloid levels, thereby propagating oxidative stress and increasing neuronal injury. A series of resveratrol derivatives, known to be inhibitors of oxidative stress-induced neuronal cell death (oxytosis) were biologically evaluated against BACE-1 using homogeneous time-resolved fluorescence (TRF) assay. Correlation between oxytosis inhibitory and BACE-1 inhibitory activity of resveratrol derivatives was statistically significant, supporting the notion that BACE-1 may act as pivotal mediator of neuronal cell oxytosis. Four of the biologically evaluated resveratrol analogs demonstrated considerably higher activity than resveratrol in either assay. The discovery of some "hits" led us to initiate detailed docking studies associated with Molecular Dynamics in order to provide a plausible explanation for the experimental results and understand their molecular basis of action.
Collapse
Affiliation(s)
| | - Caroline Villalonga-Barber
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | - Robert Csonka
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | - Xanthippi Alexi
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | - Georgios Leonis
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | - Dimitris Dellis
- c Institute of Accelerating Systems and Applications , Panepistimiopolis Zografou , Athens , Greece , and
| | | | | | - Barry R Steele
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | - Maria Micha-Screttas
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | - Michael N Alexis
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | - Manthos G Papadopoulos
- b Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens , Greece
| | | |
Collapse
|
14
|
Wang L, Xiao J. Advancement in Cascade [1,n]-Hydrogen Transfer/Cyclization: A Method for Direct Functionalization of Inactive C(sp3)H Bonds. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301153] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
15
|
Nguyen T, Yang T, Go ML. Functionalized acridin-9-yl phenylamines protected neuronal HT22 cells from glutamate-induced cell death by reducing intracellular levels of free radical species. Bioorg Med Chem Lett 2014; 24:1830-8. [PMID: 24602904 DOI: 10.1016/j.bmcl.2014.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 02/01/2014] [Accepted: 02/05/2014] [Indexed: 01/02/2023]
Abstract
The in vitro neuronal cell death model based on the HT22 mouse hippocampal cell model is a convenient means of identifying compounds that protect against oxidative glutamate toxicity which plays a role in the development of certain neurodegenerative diseases. Functionalized acridin-9-yl-phenylamines were found to protect HT22 cells from glutamate challenge at submicromolar concentrations. The Aryl(1)-NH-Aryl(2) scaffold that is embedded in these compounds was the minimal pharmacophore for activity. Mechanistically, protection against the endogenous oxidative stress generated by glutamate did not involve up-regulation of glutathione levels but attenuation of the late stage increases in mitochondrial ROS and intracellular calcium levels. The NH residue in the pharmacophore played a crucial role in this regard as seen from the loss of neuroprotection when it was structurally modified or replaced. That the same NH was essential for radical scavenging in cell-free and cell-based systems pointed to an antioxidant basis for the neuroprotective activities of these compounds.
Collapse
Affiliation(s)
- Thuy Nguyen
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, 800E Leigh Street, Richmond, VA 23298-0540, USA
| | - Tianming Yang
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Republic of Singapore
| | - Mei-Lin Go
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Republic of Singapore.
| |
Collapse
|
16
|
Hadjipavlou-Litina D, Magoulas GE, Bariamis SE, Tsimali Z, Avgoustakis K, Kontogiorgis CA, Athanassopoulos CM, Papaioannou D. Synthesis and evaluation of the antioxidative potential of minoxidil–polyamine conjugates. Biochimie 2013; 95:1437-49. [DOI: 10.1016/j.biochi.2013.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Accepted: 03/19/2013] [Indexed: 01/06/2023]
|
17
|
Yang EJ, Lee JY, Park SH, Lee T, Song KS. Neuroprotective effects of neolignans isolated from Magnoliae Cortex against glutamate-induced apoptotic stimuli in HT22 cells. Food Chem Toxicol 2013; 56:304-12. [DOI: 10.1016/j.fct.2013.02.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 01/23/2013] [Accepted: 02/14/2013] [Indexed: 12/27/2022]
|
18
|
Suthar SK, Jaiswal V, Lohan S, Bansal S, Chaudhary A, Tiwari A, Alex AT, Joesph A. Novel quinolone substituted thiazolidin-4-ones as anti-inflammatory, anticancer agents: design, synthesis and biological screening. Eur J Med Chem 2013; 63:589-602. [PMID: 23548704 DOI: 10.1016/j.ejmech.2013.03.011] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 03/04/2013] [Accepted: 03/06/2013] [Indexed: 12/19/2022]
Abstract
Nuclear factor-kappaB (NF-κB) has been reported to regulate various genes involved in cancer and inflammation. Accordingly, drugs suppressing or inhibiting NF-κB may possess both anti-inflammatory and anticancer properties. A library of quinolone substituted thiazolidin-4-ones was docked into the active site of NF-κB and the top-ranked 31 compounds were synthesized and evaluated for anti-inflammatory and anticancer activity. The best-ranked compound 6b showed highest anti-inflammatory activity in carrageenan-induced paw edema model. In vitro anticancer studies revealed 1a and 16a as most active compounds against BT-549, HeLa, COLO-205 and ACHN human cancer cell lines. Compounds 1a and 16a exhibited NF-κB dependent anticancer properties and apoptosis mediated cell death. In vivo Ehrlich ascites carcinoma study further confirmed the antitumor activity of 1a and 16a.
Collapse
Affiliation(s)
- Sharad Kumar Suthar
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Karnataka, Manipal 576104, India
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Magoulas GE, Garnelis T, Athanassopoulos CM, Papaioannou D, Mattheolabakis G, Avgoustakis K, Hadjipavlou-Litina D. Synthesis and antioxidative/anti-inflammatory activity of novel fullerene–polyamine conjugates. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
20
|
Kitsati N, Fokas D, Ouzouni MD, Mantzaris MD, Barbouti A, Galaris D. Lipophilic caffeic acid derivatives protect cells against H2O2-Induced DNA damage by chelating intracellular labile iron. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:7873-7879. [PMID: 22827723 DOI: 10.1021/jf301237y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Naturally occurring cinnamic acid derivatives are ubiquitously distributed in the plant kingdom, and it has been proposed that their consumption contributes to the maintenance of human health. However, the molecular mechanisms underlying their health keeping effects remain unknown. In the present investigation, we evaluated the capacity of several cinnamic acid derivatives (trans-cinnamic, p-coumaric, caffeic and ferulic acids, as well as caffeic acid-methyl and -propyl esters) to protect cells from oxidative stress-induced DNA damage. It was observed that effective protection was based on the ability of each compound to (i) reach the intracellular space and (ii) chelate intracellular "labile" iron. These results support the notion that numerous lipophilic iron chelating compounds, present abundantly in plant-derived diet components, may protect cells in conditions of oxidative stress and in this way be important contributors toward maintenance of human health.
Collapse
Affiliation(s)
- Natalia Kitsati
- Laboratory of Biological Chemistry, School of Medicine, University of Ioannina, Ioannina, Greece
| | | | | | | | | | | |
Collapse
|
21
|
Krumova K, Friedland S, Cosa G. How lipid unsaturation, peroxyl radical partitioning, and chromanol lipophilic tail affect the antioxidant activity of α-tocopherol: direct visualization via high-throughput fluorescence studies conducted with fluorogenic α-tocopherol analogues. J Am Chem Soc 2012; 134:10102-13. [PMID: 22568598 DOI: 10.1021/ja301680m] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The preparation of two highly sensitive fluorogenic α-tocopherol (TOH) analogues which undergo >30-fold fluorescence intensity enhancement upon reaction with peroxyl radicals is reported. The probes consist of a chromanol moiety coupled to the meso position of a BODIPY fluorophore, where the use of a methylene linker (BODIPY-2,2,5,7,8-pentamethyl-6-hydroxy-chroman adduct, H(2)B-PMHC) vs an ester linker (meso-methanoyl BODIPY-6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid, H(2)B-TOH) enables tuning their reactivity toward H-atom abstraction by peroxyl radicals. The development of a high-throughput fluorescence assay for monitoring kinetics of peroxyl radical reactions in liposomes is subsequently described where the evolution of the fluorescence intensity over time provides a rapid, facile method to conduct competitive kinetic studies in the presence of TOH and its analogues. A quantitative treatment is formulated for the temporal evolution of the intensity in terms of relative rate constants of H-atom abstraction (k(inh)) from the various tocopherol analogues. Combined, the new probes, the fluorescence assay, and the data analysis provide a new method to obtain, in a rapid, parallel format, relative antioxidant activities in phospholipid membranes. The method is exemplified with four chromanol-based antioxidant compounds differing in their aliphatic tails (TOH, PMHC, H(2)B-PMHC, and H(2)B-TOH). Studies were conducted in six different liposome solutions prepared from poly- and mono-unsaturated and saturated (fluid vs gel phase) lipids in the presence of either hydrophilic or lipophilic peroxyl radicals. A number of key insights into the chemistry of the TOH antioxidants in lipid membranes are provided: (1) The relative antioxidant activities of chromanols in homogeneous solution, arising from their inherent chemical reactivity, readily translate to the microheterogeneous environment at the water/lipid interface; thus similar values for k(inh)(H(2)B-PMHC)/k(inh)(H(2)B-TOH) in the range of 2-3 are recorded both in homogeneous solution and in liposome suspensions with hydrophilic or lipophilic peroxyl radicals. (2) The relative antioxidant activity between tocopherol analogues with the same inherent chemical reactivity but bearing short (PMHC) or long (TOH) aliphatic tails, k(inh)(PMHC)/k(inh)(TOH), is ~8 in the presence of hydrophilic peroxyl radicals, regardless of the nature of the lipid membrane into which they are embedded. (3) Antioxidants embedded in saturated lipids do not efficiently scavenge hydrophilic peroxyl radicals; under these conditions wastage reactions among peroxyl radicals become important, and this translates into larger times for antioxidant consumption. (4) Lipophilic peroxyl radicals show reduced discrimination between antioxidants bearing long and short aliphatic tails, with k(inh)(PMHC)/k(inh)(TOH) in the range of 3-4 for most lipid membranes. (5) Lipophilic peroxyl radicals are scavenged with the same efficiency by all four antioxidants studied, regardless of the nature of their aliphatic tail or the lipid membrane into which they are embedded. These data underpin the key role the lipid environment plays in modulating the rate of reaction of antioxidants characterized by similar inherent chemical reactivity (arising from a conserved chromanol moiety) but differing in their membrane mobility (structural differences in the lipophilic tail). Altogether, a novel, facile method of study, new insights, and a quantitative understanding on the critical role of lipid diversity in modulating antioxidant activity in the lipid milieu are reported.
Collapse
Affiliation(s)
- Katerina Krumova
- Department of Chemistry and Center for Self Assembled Chemical Structures, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada
| | | | | |
Collapse
|
22
|
Inami K, Iizuka Y, Furukawa M, Nakanishi I, Ohkubo K, Fukuhara K, Fukuzumi S, Mochizuki M. Chlorine atom substitution influences radical scavenging activity of 6-chromanol. Bioorg Med Chem 2012; 20:4049-55. [PMID: 22658540 DOI: 10.1016/j.bmc.2012.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2012] [Revised: 05/04/2012] [Accepted: 05/05/2012] [Indexed: 11/30/2022]
Abstract
Synthetic 6-chromanol derivatives were prepared with several chlorine substitutions, which conferred both electron-withdrawing inductive effects and electron-donating resonance effects. A trichlorinated compound (2), a dichlorinated compound (3), and three monochlorinated compounds (4, 5, and 6) were synthesized; compounds 2, 3, and 6 were novel. The antioxidant activities of the compounds, evaluated in terms of their capacities to scavenge galvinoxyl radical, were associated with the number and positioning of chlorine atoms in the aromatic ring of 6-chromanol. The activity of compound 1 (2,2-dimethyl-6-chromanol) was slightly higher than the activities of compounds 2 (2,2-dimethyl-5,7-dichloro-6-chromanol) or 3 (2,2-dimethyl-5,7,8-trichloro-6-chromanol), in which the chlorine atoms were ortho to the phenolic hydroxyl group of 6-chromanol. The scavenging activity of compound 3 was slightly higher than that of 2, which contained an additional chlorine substituted in the 8 position. The activities of polychlorinated compounds 2 and 3 were higher than the activities of any of the monochlorinated compounds (4-6). Compound 6, in which a chlorine was substituted in the 8 position, exhibited the lowest activity. Substitution of a chlorine atom meta to the hydroxyl group of 6-chromanol (compounds 2 and 6) decreased galvinoxyl radical scavenging activity, owing to the electron-withdrawing inductive effect of chlorine. Positioning the chloro group ortho to the hydroxyl group (compounds 4 and 5) retained antioxidant activity because the intermediate radical was stabilized by the electron-donating resonance effect of chlorine in spite of the electron-withdrawing inductive effect of chlorine. Antioxidant activities of the synthesized compounds were evaluated for correlations with the O-H bond dissociation energies (BDEs) and the ionization potentials. The BDEs correlated with the second-order rate constants (k) in the reaction between galvinoxyl radical and the chlorinated 6-chromanol derivatives in acetonitrile. This indicated that the antioxidant mechanism of the synthesized compounds consisted of a one-step hydrogen atom transfer from the phenolic OH group rather than an electron transfer followed by a proton transfer. The synthesized compounds also exhibited hydroxyl radical scavenging capacities in aqueous solution.
Collapse
Affiliation(s)
- Keiko Inami
- Kyoritsu University of Pharmacy, Shibako-en 1-5-30, Minato-ku, Tokyo 105-8512, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Heo SJ, Cha SH, Kim KN, Lee SH, Ahn G, Kang DH, Oh C, Choi YU, Affan A, Kim D, Jeon YJ. Neuroprotective effect of phlorotannin isolated from Ishige okamurae against H₂O₂ -induced oxidative stress in murine hippocampal neuronal cells, HT22. Appl Biochem Biotechnol 2012; 166:1520-32. [PMID: 22281782 DOI: 10.1007/s12010-012-9545-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Accepted: 01/03/2012] [Indexed: 12/31/2022]
Abstract
The present study is designed to investigate the neuroprotective effect of a kind of phlorotannins, diphlorethohydroxycarmalol (DPHC) isolated from Ishige okamurae against hydrogen peroxide (H(2)O(2))-induced oxidative stress in murine hippocampal neuronal cells, HT22. H(2)O(2) treatment induced neurotoxicity, whereas DPHC prevented cells from H(2)O(2)-induced damage then restoring cell viability was significantly increased. DPHC slightly reduced the expression of Bax induced by H(2)O(2) but recovered the expression of Bcl-xL as well as caspase-9 and -3 mediated PARP cleavage by H(2)O(2). Intracellular reactive oxygen species (ROS) and lipid peroxidation was overproduced as the result of the addition of H(2)O(2); however, these ROS generations and lipid peroxidation were effectively inhibited by addition of DPHC in a dose-dependent manner. Moreover, DPHC suppressed the elevation of H(2)O(2)-induced Ca(2+) release. These findings indicate that DPHC has neuroprotective effects against H(2)O(2)-induced damage in neuronal cells, and that an inhibitory effect on ROS production may contribute to the underlying mechanisms.
Collapse
Affiliation(s)
- Soo-Jin Heo
- Marine Biology and Living Resources Research Department, Korea Ocean Research and Development Institute, Ansan, 426-744, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Meng X, Xie P, Huang Y, Chen R. Organocatalytic domino reaction of salicyl N-thiophosphoryl imines and methyl vinyl ketone initiated by an aza-MBH reaction with bifunctional phosphine catalysts. RSC Adv 2012. [DOI: 10.1039/c2ra20823g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
25
|
Zhang S, Wu Y. Synthesis of an Antitumoral Diarylheptanoid Containing 1,3-Diol Functionality. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201100100] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
26
|
Koufaki M, Tsatsaroni A, Alexi X, Guerrand H, Zerva S, Alexis MN. Isoxazole substituted chromans against oxidative stress-induced neuronal damage. Bioorg Med Chem 2011; 19:4841-50. [DOI: 10.1016/j.bmc.2011.06.074] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 06/24/2011] [Accepted: 06/26/2011] [Indexed: 11/16/2022]
|
27
|
Synthesis of cinnamoyl ketoamides as hybrid structures of antioxidants and calpain inhibitors. Bioorg Med Chem Lett 2011; 21:2850-4. [DOI: 10.1016/j.bmcl.2011.03.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 03/04/2011] [Accepted: 03/23/2011] [Indexed: 11/18/2022]
|
28
|
|
29
|
New hydroxystilbenoid derivatives endowed with neuroprotective activity and devoid of interference with estrogen and aryl hydrocarbon receptor-mediated transcription. Bioorg Med Chem 2011; 19:339-51. [DOI: 10.1016/j.bmc.2010.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2010] [Revised: 11/08/2010] [Accepted: 11/08/2010] [Indexed: 10/18/2022]
|
30
|
Sebestík J, Marques SM, Falé PL, Santos S, Arduíno DM, Cardoso SM, Oliveira CR, Serralheiro MLM, Santos MA. Bifunctional phenolic-choline conjugates as anti-oxidants and acetylcholinesterase inhibitors. J Enzyme Inhib Med Chem 2010; 26:485-97. [PMID: 21067438 DOI: 10.3109/14756366.2010.529806] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Because of the complex cascade of molecular events that can occur in the brain of an Alzheimer's disease (AD) patient, the therapy of this neurodegenerative disease seems more likely to be achieved by multifunctional drugs. Herein, a new series of dual-targeting ligands have been developed and in vitro bioevaluated. Their architecture is based on conjugating the acetylcholinesterase inhibition and anti-oxidant properties in one molecular entity. Specifically, a series of naturally occurring phenolic acids with recognized anti-oxidant properties (derivatives of caffeic acid, rosmarinic acid, and trolox) have been conjugated with choline to account for the recognition by acetylcholinesterase (AChE). The synthesized hybrid compounds evidenced AChE inhibitory capacity of micromolar range (rationalized by molecular modeling studies) and good antioxidant properties. Their effects on human neuroblastoma cells, previously treated with beta-amyloid peptides and 1-methyl-4-phenylpyridinium ion neurotoxins (to simulate AD and Parkinson's disease, respectively), also demonstrated a considerable capacity for protection against the cytotoxicity of these stressors.
Collapse
Affiliation(s)
- Jaroslav Sebestík
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Hadjipavlou-Litina D, Magoulas GE, Bariamis SE, Drainas D, Avgoustakis K, Papaioannou D. Does conjugation of antioxidants improve their antioxidative/anti-inflammatory potential? Bioorg Med Chem 2010; 18:8204-17. [PMID: 21041094 DOI: 10.1016/j.bmc.2010.10.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 09/30/2010] [Accepted: 10/06/2010] [Indexed: 11/17/2022]
Abstract
A series of symmetric and asymmetric spermine (SPM) conjugates with all-trans-retinoic acid (ATRA), acitretin (ACI), (E)-3-(trioxsalen-4'-yl)acrylic acid (TRAA) and L-DOPA, amides of ACI, l-DOPA and TRAA with 1-aminobutane, benzylamine, dopamine and 1,12-diaminobutane as well as hybrid conjugates of O,O'-dimethylcaffeic acid (DMCA) with TRAA or N-fumaroyl-indole-3-carboxanilide (FICA) and 2-(2-aminoethoxy)ethanol were synthesized and their antioxidant properties were studied. The reducing activity (RA)% of the compounds were evaluated using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging assay and found to be in the range 0-92(20 min)%/96(60 min)% at 100μM, the most powerful being the conjugates L-DOPA-SPM-L-DOPA (8, RA=89%/96%) and L-DOPA-dopamine (13, RA=92%/92%). Conjugate DMCA-NH(CH₂CH₂O)₂-FICA (14) was the most powerful LOX inhibitor with IC₅₀ 33.5μM, followed by the conjugates ACI-NHCH₂Ph (10, IC₅₀ 40.5μM), ACI-SPM-TRAA (7, IC₅₀ 41.5μM), DMCA-NH(CH₂CH₂O)₂-TRAA (15, IC₅₀ 65μM), 13 (IC₅₀ 81.5μM) and ACI-dopamine (11, IC₅₀ 87μM). The most potent inhibitors of lipid peroxidation at 100μM were the conjugates 15 (98%) and ACI-SPM-ACI (4, 97%) whereas all other compounds showed activities comparable or lower than trolox. The most interesting compounds, namely ATRA-SPM-ATRA (3), 4, 10, 11 and 15, as well as unconjugated compounds such as ATRA and dopamine, were studied for their anti-inflammatory activity in vivo on rat paw oedema induced by Carrageenan and found to exhibit, for doses of 0.01 mmol/mL of conjugates per Kg of rat body weight, weaker anti-inflammatory activities (3.6-40%) than indomethacin (47%) with conjugate 3 being the most potent (40%) in this series of compounds. The cytocompatibility of selected compounds was evaluated by the viability of RAMEC cells in the presence of different concentrations (0.5-50μM) of the compounds. Conjugates 3 (IC₅₀ 2.6μM) and 4 (IC₅₀ 4.7μM) were more cytotoxic than the corresponding unconjugated retinoids ATRA (IC₅₀ 18.3μM) and ACI (IC₅₀ 14.6μM), whereas conjugate 15 (IC₅₀ 12.9μM) was less cytotoxic than either DCSP (IC₅₀ 11.3μM) or the tert-butyl ester of TRAA (IC₅₀ 2.9μM).
Collapse
|
32
|
Yang J, Liu GY, Lu DL, Dai F, Qian YP, Jin XL, Zhou B. Hybrid-Increased Radical-Scavenging Activity of Resveratrol Derivatives by Incorporating a Chroman Moiety of Vitamin E. Chemistry 2010; 16:12808-13. [DOI: 10.1002/chem.201002020] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
33
|
Koufaki M, Theodorou E, Alexi X, Nikoloudaki F, Alexis MN. Synthesis of tropolone derivatives and evaluation of their in vitro neuroprotective activity. Eur J Med Chem 2010; 45:1107-12. [DOI: 10.1016/j.ejmech.2009.12.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 07/30/2009] [Accepted: 12/03/2009] [Indexed: 11/28/2022]
|
34
|
McQuaid KM, Long JZ, Sames D. C-H bond functionalization via hydride transfer: synthesis of dihydrobenzopyrans from ortho-vinylaryl akyl ethers. Org Lett 2009; 11:2972-5. [PMID: 19548698 PMCID: PMC2954889 DOI: 10.1021/ol900915p] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The hydride transfer initiated cyclization ("HT-cyclization") of aryl alkyl ethers, which leads to direct coupling of sp(3) C-H bonds and activated alkenes, is reported. Readily available salicylaldehyde derived ethers are converted in one step to dihydrobenzopyrans, an important class of heteroarenes frequently found in biologically active compounds. This process has not been previously reported, in contrast to known HT-cyclizations of the corresponding tert-amines ("tert-amino effect" reactions).
Collapse
Affiliation(s)
- Kevin M. McQuaid
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027
| | - Jonathan Z. Long
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027
| | - Dalibor Sames
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027
| |
Collapse
|
35
|
He L, Galland S, Dufour C, Chen GR, Dangles O, Fenet B, Praly JP. C-D-Glucopyranosyl Derivatives of Tocopherols – Synthesis and Evaluation as Amphiphilic Antioxidants. European J Org Chem 2008. [DOI: 10.1002/ejoc.200700885] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
36
|
Abstract
The drug market is still dominated by small molecules, and more than 80% of the clinical development of drug candidates in the top 20 pharmaceutical firms is still based on small molecules. The high cost of developing and manufacturing "biological drugs" will contribute to leaving an open space for drugs based on cheap small molecules. Four main routes can be explored to design affordable and efficient drugs: (i) a drastic reduction of the production costs of biological drugs, (ii) a real improvement of drug discovery via "computer-assisted combinatorial methods", (iii) going back to an extensive exploration of natural products as drug sources, and (iv) drug discovery by rational drug design and bio-inspired design that hopefully includes serendipity and human inspiration. At the border between bio-inspired design and rational design, one can imagine preparation of hybrid molecules with a dual mode of action to create efficient new drugs. In this Account, hybrid molecules are defined as chemical entities with two or more structural domains having different biological functions and dual activity, indicating that a hybrid molecule acts as two distinct pharmacophores. In order to obtain new antimalarial drugs that are affordable and able to avoid the emergence of resistant strains, we developed hybrid molecules with a dual mode of action (a "double-edged sword") able to kill multiresistant strains by oral administration. These hybrid molecules, named trioxaquines, with two pharmacophores able to interact with the heme target are made with a trioxane motif covalently linked to an aminoquinoline entity. More than 100 trioxaquines have been prepared by Palumed over a period of 4 years, and in collaboration with Sanofi-Aventis, the trioxaquine PA1103-SAR116242 has been selected in January 2007 as candidate for preclinical development.
Collapse
Affiliation(s)
- Bernard Meunier
- Palumed, rue Pierre et Marie Curie, BP 28262, 31262 Labège Cedex, France.
| |
Collapse
|
37
|
Koufaki M, Kiziridi C, Nikoloudaki F, Alexis MN. Design and synthesis of 1,2-dithiolane derivatives and evaluation of their neuroprotective activity. Bioorg Med Chem Lett 2007; 17:4223-7. [PMID: 17531485 DOI: 10.1016/j.bmcl.2007.05.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 05/09/2007] [Accepted: 05/11/2007] [Indexed: 10/23/2022]
Abstract
We designed and synthesized new analogues containing 1,2-dithiolane-3-alkyl and protected or free catechol moieties connected through heteroaromatic rings such as triazole, 1,2,4-oxadiazole, 1,3,4-oxadiazole, tetrazole or thiazole in order to explore the influence of the bioisosteric replacement of the amide group on the neuroprotective activity of the lipoic acid/dopamine conjugate. Evaluation of the activity of the new compounds, using glutamate-challenged hippocampal HT22 cells, showed that incorporation of heteroaromatic rings in the alkyl-1,2-dithiolane moieties in conjunction with another antioxidant, in this case catechol, may result in strong neuroprotective activity.
Collapse
Affiliation(s)
- Maria Koufaki
- National Hellenic Research Foundation, Institute of Organic and Pharmaceutical Chemistry, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece.
| | | | | | | |
Collapse
|
38
|
Detsi A, Bouloumbasi D, Prousis KC, Koufaki M, Athanasellis G, Melagraki G, Afantitis A, Igglessi-Markopoulou O, Kontogiorgis C, Hadjipavlou-Litina DJ. Design and synthesis of novel quinolinone-3-aminoamides and their alpha-lipoic acid adducts as antioxidant and anti-inflammatory agents. J Med Chem 2007; 50:2450-8. [PMID: 17444626 DOI: 10.1021/jm061173n] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of N-substituted-quinolinone-3-aminoamides and their hybrids containing the alpha-lipoic acid functionality were designed and synthesized as potential bifunctional agents combining antioxidant and anti-inflammatory activity. The new compounds were evaluated for their antioxidant activity and for their ability to inhibit in vitro lipoxygenase as well as for their anti-inflammatory activity in vivo. In general, the derivatives were found to be potent antioxidant or anti-inflammatory agents. The results are discussed in terms of structure-activity relationships and an attempt is made to define the structural features required for activity.
Collapse
Affiliation(s)
- Anastasia Detsi
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Zorgafou Campus, GR 157 73, Athens, Greece.
| | | | | | | | | | | | | | | | | | | |
Collapse
|