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Singh R, Manna S, Nandanwar H, Purohit R. Bioactives from medicinal herb against bedaquiline resistant tuberculosis: removing the dark clouds from the horizon. Microbes Infect 2024; 26:105279. [PMID: 38128751 DOI: 10.1016/j.micinf.2023.105279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
Tuberculosis is a contagious bacterial ailment that primarily affects the lungs and is brought on by the bacterium Mycobacterium tuberculosis (MTB). An antimycobacterial medication called bedaquiline (BQ) is specified to treat multidrug-resistant tuberculosis (MDR-TB). Despite its contemporary use in clinical practice, the mutations (D32 A/G/N/V/P) constrain the potential of BQ by causing transitions in the structural conformation of the atpE subunit-c after binding. In this study, we have taken the benzylisoquinoline alkaloids from thalictrum foliolosum due to its antimicrobial activity reported in prior literature. We used an efficient and optimized structure-based strategy to examine the wild type (WT) and mutated protein upon molecule binding. Our results emphasize the drastic decline in BQ binding affinity of mutant and WT atpE subunit-c complexes compared to thalirugidine (top hit) from thalictrum foliolosum. The decrease in BQ binding free energy is due to electrostatic energy because nearly every atom in a macromolecule harbors a partial charge, and molecules taking part in molecular recognition will interact electrostatically. Similarly, the high potential mean force of thalirugidine than BQ in WT and mutant complexes demonstrated the remarkable ability to eradicate mycobacteria efficiently. Furthermore, the Alamar blue cell viability and ATP determination assay were performed to validate the computational outcomes in search of novel antimycobacterial. Upon closer examination of the ATP determination assay, it became apparent that both BQ and thalirugidine showed similar reductions in ATP levels at their respective MICs, presenting a potential common mechanism of action.
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Affiliation(s)
- Rahul Singh
- Structural Bioinformatics Lab, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Souvik Manna
- CSIR-Institute of Microbial Technology, Sector-39, Chandigarh, 160036, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Hemraj Nandanwar
- CSIR-Institute of Microbial Technology, Sector-39, Chandigarh, 160036, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Rituraj Purohit
- Structural Bioinformatics Lab, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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2
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Sharma D, Sharma N, Manchanda N, Prasad SK, Sharma PC, Thakur VK, Rahman MM, Dhobi M. Bioactivity and In Silico Studies of Isoquinoline and Related Alkaloids as Promising Antiviral Agents: An Insight. Biomolecules 2022; 13:17. [PMID: 36671402 PMCID: PMC9856122 DOI: 10.3390/biom13010017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/10/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Viruses are widely recognized as the primary cause of infectious diseases around the world. The ongoing global pandemic due to the emergence of SARS-CoV-2 further added fuel to the fire. The development of therapeutics becomes very difficult as viruses can mutate their genome to become more complex and resistant. Medicinal plants and phytocompounds could be alternative options. Isoquinoline and their related alkaloids are naturally occurring compounds that interfere with multiple pathways including nuclear factor-κB, mitogen-activated protein kinase/extracellular-signal-regulated kinase, and inhibition of Ca2+-mediated fusion. These pathways play a crucial role in viral replication. Thus, the major goal of this study is to comprehend the function of various isoquinoline and related alkaloids in viral infections by examining their potential mechanisms of action, structure-activity relationships (SAR), in silico (particularly for SARS-CoV-2), in vitro and in vivo studies. The current advancements in isoquinoline and related alkaloids as discussed in the present review could facilitate an in-depth understanding of their role in the drug discovery process.
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Affiliation(s)
- Divya Sharma
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Sector-III, Pushp Vihar, New Delhi 110017, India
| | - Neetika Sharma
- Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University, Sector-III, Pushp Vihar, New Delhi 110017, India
| | - Namish Manchanda
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Sector-III, Pushp Vihar, New Delhi 110017, India
| | - Satyendra K. Prasad
- Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur 440033, India
| | - Prabodh Chander Sharma
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Sector-III, Pushp Vihar, New Delhi 110017, India
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Centre, Scotland’s Rural College (SRUC), Kings Buildings, 11 West Mains Road, Edinburgh EH9 3JG, UK
- School of Engineering, University of Petroleum & Energy Studies (UPES), Dehradun 248007, India
| | - M. Mukhlesur Rahman
- Pharmaceutical and Natural Products Chemistry, School of Health, Sports and Bioscience, University of East London, Stratford Campus, London E15 4LZ, UK
| | - Mahaveer Dhobi
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Sector-III, Pushp Vihar, New Delhi 110017, India
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3
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Trending strategies for the synthesis of quinolinones and isoquinolinones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Kaur P, Sharma P, Kumar V, Sahal D, Kumar R. Chitosan-supported FeCl3 catalyzed multicomponent synthesis of tetrahydroisoquinoline-indole hybrids with promising activity against chloroquine resistant Plasmodium falciparum. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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5
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A New Series of Tungstophosphoric Acid-Polymeric Matrix Catalysts: Application in the Green Synthesis of 2-Benzazepines and Analogous Rings. Catalysts 2022. [DOI: 10.3390/catal12101155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A new series of composite materials (PLMTPA) based on tungstophosphoric acid (TPA) included in a polymeric matrix of polyacrylamide (PLM), with a TPA:PLM ratio of 20/80, 40/60, and 60/40, were synthesized and well characterized by FT-IR, XRD, 31P MAS-NMR, TGA-DSC, and SEM-EDAX. Their acidic and textural properties were determined by potentiometric titration and nitrogen adsorption–desorption isotherms, respectively. Considering 31P MAS-NMR and FT-IR analyses, the main species present in the samples is the [PW12O40]3− anion that, according to XRD results, is highly dispersed in the polymeric matrix or appears as a noncrystalline phase. The thermogravimetric analysis revealed that PLMTPA materials did not undergo any remarkable chemical changes up to 200 °C. Additionally, the PLMTPA materials showed strong acid sites whose number increased with the increment of their TPA content. Finally, PLMTPA materials were used as efficient and recyclable noncorrosive catalysts for the synthesis of 2-benzazepines and related compounds. Good yields (55–88%) and high purity were achieved by a Pictet-Spengler variant reaction between N-aralkylsulfonamides and s-trioxane in soft reaction conditions: low toluene volume, at 70 °C, for 3 h. The described protocol results in a useful and environmentally friendly alternative with operative simplicity. The best catalyst in the optimized reaction conditions, PLMTPA60/40100, was reused six times without appreciable loss of activity.
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Elantabli FM, El‐Medani SM, Kozakiewicz‐Piekarz A, Ramadan RM. New transition metal complexes of 1‐phenyl‐2‐((quinolin‐2‐ylmethylene)amino)ethan‐1‐ol Schiff base: Spectroscopic, X‐ray, DFT, Hirshfeld surface analysis, biological, and molecular docking studies. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Fatma M. Elantabli
- Chemistry Department, Faculty of Science El‐Fayoum University El‐Fayoum Egypt
| | - Samir M. El‐Medani
- Chemistry Department, Faculty of Science El‐Fayoum University El‐Fayoum Egypt
| | - Anna Kozakiewicz‐Piekarz
- Department of Biomedical Chemistry and Polymers, Faculty of Chemistry Nicolaus Copernicus University in Toruń Toruń Poland
| | - Ramadan M. Ramadan
- Chemistry Department, Faculty of Science Ain Shams University Cairo Egypt
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7
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El-Aasr M, Eliwa D, Albadry M, Ibrahim ARS, Kabbash A, Meepagala KM, Khan IA, Khan SI, Ross SA. Microbial transformation of some simple isoquinoline and benzylisoquinoline alkaloids and in vitro studies of their metabolites. PHYTOCHEMISTRY 2021; 189:112828. [PMID: 34174637 DOI: 10.1016/j.phytochem.2021.112828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 05/28/2021] [Accepted: 05/31/2021] [Indexed: 06/13/2023]
Abstract
Simple isoquinoline alkaloids (heliamine, dehydroheliamine), a phthalide isoquinoline alkaloid noscapine, and an aporphine alkaloid boldine are biosynthetically derived from an amino acid tyrosine. These substrates and a simple synthetic isoquinoline alkaloid (2-acetyl-7-amino-1,2,3,4-tetrahydroisoquinoline) contain an isoquinoline nucleus. The biotransformation of these substrates via reduction, oxidation, hydroxylation, and N-oxidation reactions with different microorganism produced nine metabolites, namely: N-(2-acetyl-1,2,3,4-tetrahydroisoquinolin-7-yl) acetamide (Metabolite 1), heliamine N-oxide (Metabolite 2), 6,7-dimethoxyisoquinoline (Metabolite 3), 3,4-dihydro-6,7-dimethoxy isoquinolin-1-one (Metabolite 4), heliamine (Metabolite 5), dehydroheliamine N-oxide (Metabolite 6), cotarnine (Metabolite 7), 5-hydroxy cotarnine (Metabolite 8), and boldine N-oxide (Metabolite 9). Primarily, the metabolites are structurally elucidated by one-dimensional (1D) and two-dimensional (2D) nuclear magnetic resonance (NMR) analyses, and high-resolution electrospray ionization mass spectrometry (HR-ESIMS). Furthermore, the substrates and their isolated metabolites are evaluated in vitro for their anti-inflammatory, antimicrobial, cytotoxicity, and anticancer activities. The in vitro studies reveal that some of the isolated compounds are potential as anti-inflammatory, antitumor, and antimicrobial leads.
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Affiliation(s)
- Mona El-Aasr
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | - Duaa Eliwa
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt; National Center of Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Mohamed Albadry
- National Center of Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA; Division of Pharmacognosy, Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, MS, 38677, USA
| | - Abdel-Rahim S Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | - Amal Kabbash
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt
| | | | - Ikhlas A Khan
- National Center of Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA; Division of Pharmacognosy, Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, MS, 38677, USA
| | - Shabana I Khan
- National Center of Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA; Division of Pharmacognosy, Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, MS, 38677, USA
| | - Samir A Ross
- National Center of Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA; Division of Pharmacognosy, Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, MS, 38677, USA.
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8
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Firdiana ER, Renjana E, Ningrum LW, Angio MH, Nikmatullah M, Rizal S. In Silico Study of the Active Compounds of Lindera aggregata (Sims) Kosterm as Anti-coronavirus. CURRENT NUTRITION & FOOD SCIENCE 2021. [DOI: 10.2174/1573401316999200901181217] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background:
CoVID-19, caused by a new type of coronavirus named SARS-CoV-2,
has become a pandemic. Together with SARS-CoV and MERS-CoV, CoVID-19 is a large global
outbreak of coronavirus infection; however, its rate of spread is much higher. Since the vaccines
and anti-SARS-CoV-2 have not been found, a faster control mechanism is much needed. Traditional
herbs have shown the potential for this purpose, as has been demonstrated by the Chinese Government
with a high success rate. One of the herbs used was Lindera aggregata, which is part of
the collection in Purwodadi Botanic Gardens.
Objectives:
Through in silico study, this research aims to reveal the secondary metabolites contained
in L. aggregata that have the potential to serve as anti-SARS-CoV-2 medication as well as
showcase their inhibitory mechanisms.
Methods:
The research was conducted through molecular docking analysis of terpenoids and alkaloids
contained in the root of L. aggregata, with target proteins 3CLpro, PLpro, Spike, and ACE 2
playing a role in SARS-CoV-2 infection.
Result:
All analyzed compounds tended to interact with all four target proteins with different binding
affinity values, but the interaction seemed stronger with 3CLpro and Spike. Terpenoids, linderane
and linderalactone had the strongest interaction tendency with 3CLpro, PLpro, and Spike; the
compound norboldine, an alkaloid, had the strongest interaction with ACE 2, with a binding affinity
value of -8.2 kcal/mol.
Conclusion:
Terpenoids and alkaloids contained in the root of L. aggregata, which caused inhibition
of adsorption and replication of SARS-CoV-2, could serve as anti-SARS-CoV-2.
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Affiliation(s)
- Elok R. Firdiana
- Research Center for Plants and Botanic Garden Conservation, Indonesian Institute of Sciences, Bogor, Indonesia
| | - Elga Renjana
- Research Center for Plants and Botanic Garden Conservation, Indonesian Institute of Sciences, Bogor, Indonesia
| | - Linda W. Ningrum
- Research Center for Plants and Botanic Garden Conservation, Indonesian Institute of Sciences, Bogor, Indonesia
| | - Melisnawati H. Angio
- Research Center for Plants and Botanic Garden Conservation, Indonesian Institute of Sciences, Bogor, Indonesia
| | - Muhamad Nikmatullah
- Research Center for Biology, Indonesian Institute of Sciences, Bogor, Indonesia
| | - Syaiful Rizal
- Research Center for Biology, Indonesian Institute of Sciences, Bogor, Indonesia
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9
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Ramu S, Baskar B. A simple and efficient metal free, additive, or base free dehydrogenation of tetrahydroisoquinolines using oxygen as a clean oxidant. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Metal free dehydrogenation of various substituted tetrahydroisoquinolines via a simple and convenient metal free, atom economical route for the synthesis of corresponding isoquinolines under oxygen atmosphere in N-methyl-2-pyrollidone (NMP) is described. Metal free dehydrogenation was carried out without the use of additive or base. A scope of the methodology was demonstrated for a number of aryl and heteroaryl substitutions present at C1 position and ester moiety at C3 position and was found to be good substrates. Substituted isoquinolines (3a–3h) and their esters (3i–3m) were synthesized in very good to excellent yields.
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Affiliation(s)
- Shanmugam Ramu
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
| | - Baburaj Baskar
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
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10
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Prebble DW, Holland DC, Robertson LP, Avery VM, Carroll AR. Citronamine A, an Antiplasmodial Isoquinoline Alkaloid from the Australian Marine Sponge Citronia astra. Org Lett 2020; 22:9574-9578. [PMID: 33232166 DOI: 10.1021/acs.orglett.0c03633] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Citronamine A (1), an isoquinoline alkaloid containing an unprecedented pentacyclic ring system, was isolated from the Australian marine sponge Citronia astra. Based on the combination of MS and NMR analyses and comparison of experimental and TDDFT calculated ECD spectra, the absolute structure of 1 was determined. Compound 1 displayed moderate activity against drug sensitive (3D7) and drug resistant (Dd2) strains of the parasite, Plasmodium falciparum, responsible for malaria.
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Affiliation(s)
- Dale W Prebble
- School of Environment and Science, Griffith University, Southport, Queensland 4222, Australia.,Environmental Futures Research Institute, Griffith University, Southport, Queensland 4222, Australia.,Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Darren C Holland
- School of Environment and Science, Griffith University, Southport, Queensland 4222, Australia.,Environmental Futures Research Institute, Griffith University, Southport, Queensland 4222, Australia
| | - Luke P Robertson
- School of Environment and Science, Griffith University, Southport, Queensland 4222, Australia.,Environmental Futures Research Institute, Griffith University, Southport, Queensland 4222, Australia
| | - Vicky M Avery
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia.,Discovery Biology, Griffith University, Brisbane, Queensland 4111, Australia
| | - Anthony R Carroll
- School of Environment and Science, Griffith University, Southport, Queensland 4222, Australia.,Environmental Futures Research Institute, Griffith University, Southport, Queensland 4222, Australia.,Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
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11
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Lichman BR. The scaffold-forming steps of plant alkaloid biosynthesis. Nat Prod Rep 2020; 38:103-129. [PMID: 32745157 DOI: 10.1039/d0np00031k] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Alkaloids from plants are characterised by structural diversity and bioactivity, and maintain a privileged position in both modern and traditional medicines. In recent years, there have been significant advances in elucidating the biosynthetic origins of plant alkaloids. In this review, I will describe the progress made in determining the metabolic origins of the so-called true alkaloids, specialised metabolites derived from amino acids containing a nitrogen heterocycle. By identifying key biosynthetic steps that feature in the majority of pathways, I highlight the key roles played by modifications to primary metabolism, iminium reactivity and spontaneous reactions in the molecular and evolutionary origins of these pathways.
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Affiliation(s)
- Benjamin R Lichman
- Centre for Novel Agricultural Products, Department of Biology, University of York, York YO10 5DD, UK.
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12
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Schütz R, Müller M, Gerndt S, Bartel K, Bracher F. Racemic total synthesis and evaluation of the biological activities of the isoquinoline–benzylisoquinoline alkaloid muraricine. Arch Pharm (Weinheim) 2020; 353:e2000106. [DOI: 10.1002/ardp.202000106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 04/25/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Ramona Schütz
- Department of Pharmacy, Center for Drug ResearchLudwig‐Maximilians‐University of Munich Munich Germany
| | - Martin Müller
- Department of Pharmacy, Center for Drug ResearchLudwig‐Maximilians‐University of Munich Munich Germany
| | - Susanne Gerndt
- Department of Pharmacy, Center for Drug ResearchLudwig‐Maximilians‐University of Munich Munich Germany
| | - Karin Bartel
- Department of Pharmacy, Center for Drug ResearchLudwig‐Maximilians‐University of Munich Munich Germany
| | - Franz Bracher
- Department of Pharmacy, Center for Drug ResearchLudwig‐Maximilians‐University of Munich Munich Germany
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13
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Naghiyev FN, Mamedov IG, Asadov KA, Dorovatovskii PV, Khrustalev VN, Maharramov AM. Synthesis of Functionalized Bicyclic Compounds Based on 2-(1-Arylethylidene)malononitriles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428019120273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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The Biological Activity of Natural Alkaloids against Herbivores, Cancerous Cells and Pathogens. Toxins (Basel) 2019; 11:toxins11110656. [PMID: 31717922 PMCID: PMC6891610 DOI: 10.3390/toxins11110656] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/31/2019] [Accepted: 11/05/2019] [Indexed: 01/10/2023] Open
Abstract
The growing incidence of microorganisms that resist antimicrobials is a constant concern for the scientific community, while the development of new antimicrobials from new chemical entities has become more and more expensive, time-consuming, and exacerbated by emerging drug-resistant strains. In this regard, many scientists are conducting research on plants aiming to discover possible antimicrobial compounds. The secondary metabolites contained in plants are a source of chemical entities having pharmacological activities and intended to be used for the treatment of different diseases. These chemical entities have the potential to be used as an effective antioxidant, antimutagenic, anticarcinogenic and antimicrobial agents. Among these pharmacologically active entities are the alkaloids which are classified into a number of classes, including pyrrolizidines, pyrrolidines, quinolizidines, indoles, tropanes, piperidines, purines, imidazoles, and isoquinolines. Alkaloids that have antioxidant properties are capable of preventing a variety of degenerative diseases through capturing free radicals, or through binding to catalysts involved indifferent oxidation processes occurring within the human body. Furthermore, these entities are capable of inhibiting the activity of bacteria, fungi, protozoan and etc. The unique properties of these secondary metabolites are the main reason for their utilization by the pharmaceutical companies for the treatment of different diseases. Generally, these alkaloids are extracted from plants, animals and fungi. Penicillin is the most famous natural drug discovery deriving from fungus. Similarly, marines have been used as a source for thousands of bioactive marine natural products. In this review, we cover the medical use of natural alkaloids isolated from a variety of plants and utilized by humans as antibacterial, antiviral, antifungal and anticancer agents. An example for such alkaloids is berberine, an isoquinoline alkaloid, found in roots and stem-bark of Berberis asculin P. Renault plant and used to kill a variety of microorganisms.
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15
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Roddan R, Gygli G, Sula A, Méndez-Sánchez D, Pleiss J, Ward JM, Keep NH, Hailes HC. Acceptance and Kinetic Resolution of α-Methyl-Substituted Aldehydes by Norcoclaurine Synthases. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02699] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Rebecca Roddan
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
- Institute for Structural and Molecular Biology, Department of Biological Sciences, Birkbeck, University of London, Malet Street, London WC1E 8HX, U.K
| | - Gudrun Gygli
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart, Stuttgart 70569, Germany
| | - Altin Sula
- Institute for Structural and Molecular Biology, Department of Biological Sciences, Birkbeck, University of London, Malet Street, London WC1E 8HX, U.K
| | - Daniel Méndez-Sánchez
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Jürgen Pleiss
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart, Stuttgart 70569, Germany
| | - John M. Ward
- Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, U.K
| | - Nicholas H. Keep
- Institute for Structural and Molecular Biology, Department of Biological Sciences, Birkbeck, University of London, Malet Street, London WC1E 8HX, U.K
| | - Helen C. Hailes
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
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16
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Abstract
Heterocycles are very common substructures in a number of pharmaceuticals. Over the past several years, the use of palladium-catalyzed oxidative cyclization for heterocyclic synthesis has become much more prevalent. This review collects recent reports using palladium catalysis to synthesize a wide variety of heterocyclic scaffolds. Many of these reactions use oxygen as the terminal oxidant. Some salient mechanistic features are discussed.
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Affiliation(s)
- John C. Hershberger
- Department of Chemistry and Physics, Arkansas State University, State University, AR, United States
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17
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Albano G, Morelli M, Lissia M, Aronica LA. Synthesis of Functionalised Indoline and Isoquinoline Derivatives through a Silylcarbocyclisation/Desilylation Sequence. ChemistrySelect 2019. [DOI: 10.1002/slct.201900524] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Gianluigi Albano
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
| | - Martina Morelli
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
| | - Margherita Lissia
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
| | - Laura A. Aronica
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
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Zheng B, Trieu TH, Li FL, Zhu XL, He YG, Fan QQ, Shi XX. Copper-Catalyzed Benign and Efficient Oxidation of Tetrahydroisoquinolines and Dihydroisoquinolines Using Air as a Clean Oxidant. ACS OMEGA 2018; 3:8243-8252. [PMID: 31458961 PMCID: PMC6644811 DOI: 10.1021/acsomega.8b00855] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 06/06/2018] [Indexed: 06/10/2023]
Abstract
A green chemical method for mild oxidation of 1,2,3,4-tetrahydroisoquinolines (THIQs) and 3,4-dihydroisoquinolines (DHIQs) has been developed using air (O2) as a clean oxidant. DHIQs and THIQs could be efficiently oxidized to isoquinolines in dimethyl sulfoxide at 25 °C under an open air atmosphere with CuBr2 (20 mol %) as the catalyst; different bases [NaOEt and/or 1,8-diazabicyclo[5,4,0]undec-7-ene] were used for the reaction according to the patterns of substituents (R1, R2).
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Affiliation(s)
- Bo Zheng
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Tien Ha Trieu
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Feng-Lei Li
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Xing-Liang Zhu
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Yun-Gang He
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Qi-Qi Fan
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Xiao-Xin Shi
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
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19
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Zhang J, Chen L, Sun J. Oxoisoaporphine Alkaloids: Prospective Anti-Alzheimer's Disease, Anticancer, and Antidepressant Agents. ChemMedChem 2018; 13:1262-1274. [PMID: 29696800 DOI: 10.1002/cmdc.201800196] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/22/2018] [Indexed: 12/30/2022]
Abstract
Oxoisoaporphine alkaloids are a family of oxoisoquinoline-derived alkaloids that were first isolated from the rhizome of Menispermum dauricum DC. (Menispermaceae). It has been demonstrated that oxoisoaporphine alkaloids possess various biological properties, such as cholinesterase and β-amyloid inhibition, acting as a topoisomerase intercalator, monoamine oxidase A inhibition, and are expected to become anti-Alzheimer's disease, anticancer, and antidepressant drugs. This review provides an overview of natural sources, synthetic routes, bioactivities, structure-function relationship, and modification investigations into oxoisoaporphine alkaloids, with the aim of providing references to the structure-activity relationships for the design and development of oxoisoaporphine derivatives with higher efficacy and therapeutic potential.
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Affiliation(s)
- Jiayao Zhang
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tongjia Lane, Nanjing, 210009, P.R. China
| | - Li Chen
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tongjia Lane, Nanjing, 210009, P.R. China
| | - Jianbo Sun
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tongjia Lane, Nanjing, 210009, P.R. China
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20
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Singh S, Cooper S, Glenn JR, Beresford J, Percival LR, Tyndall JDA, Hill SJ, Kilpatrick LE, Vernall AJ. Synthesis of novel (benzimidazolyl)isoquinolinols and evaluation as adenosine A1 receptor tools. RSC Adv 2018; 8:16362-16369. [PMID: 35542203 PMCID: PMC9080270 DOI: 10.1039/c7ra13148h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 04/21/2018] [Indexed: 11/21/2022] Open
Abstract
G protein-coupled receptors (GPCRs) constitute the largest family of transmembrane receptors in eukaryotes. The adenosine A1 receptor (A1AR) is a class A GPCR that is of interest as a therapeutic target particularly in the treatment of cardiovascular disease and neuropathic pain. Increased knowledge of the role A1AR plays in mediating these pathophysiological processes will help realise the therapeutic potential of this receptor. There is a lack of enabling tools such as selective fluorescent probes to study A1AR, therefore we designed a series of (benzimidazolyl)isoquinolinols conjugated to a fluorescent dye (31–35, 42–43). An improved procedure for the synthesis of isoquinolinols from tetrahydroisoquinolinols via oxidation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and atmospheric oxygen is reported. This synthetic method offers advantages over previous metal-based methods for the preparation of isoquinolinols and isoquinolines, which are important scaffolds found in many biologically active compounds and natural products. We report the first synthesis of the (benzimidazolyl)isoquinolinol compound class, however the fluorescent conjugates were not successful as A1AR fluorescent ligands. Mild, metal free aromatization of tetrahydroisoquinolinols. Synthesis of (benzimidazolyl)isoquinolinols.![]()
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Affiliation(s)
- Sameek Singh
- School of Pharmacy
- University of Otago
- Dunedin 9054
- New Zealand
| | - Samantha L. Cooper
- Physiology, Pharmacology and Neuroscience Division
- School of Life Sciences
- University of Nottingham
- Nottingham
- UK
| | - Jacqueline R. Glenn
- Physiology, Pharmacology and Neuroscience Division
- School of Life Sciences
- University of Nottingham
- Nottingham
- UK
| | - Jessica Beresford
- Physiology, Pharmacology and Neuroscience Division
- School of Life Sciences
- University of Nottingham
- Nottingham
- UK
| | - Lydia R. Percival
- Physiology, Pharmacology and Neuroscience Division
- School of Life Sciences
- University of Nottingham
- Nottingham
- UK
| | | | - Stephen J. Hill
- Physiology, Pharmacology and Neuroscience Division
- School of Life Sciences
- University of Nottingham
- Nottingham
- UK
| | - Laura E. Kilpatrick
- Physiology, Pharmacology and Neuroscience Division
- School of Life Sciences
- University of Nottingham
- Nottingham
- UK
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21
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Green Routes for the Production of Enantiopure Benzylisoquinoline Alkaloids. Int J Mol Sci 2017; 18:ijms18112464. [PMID: 29156609 PMCID: PMC5713430 DOI: 10.3390/ijms18112464] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 12/20/2022] Open
Abstract
Benzylisoquinoline alkaloids (BIAs) are among the most important plant secondary metabolites, in that they include a number of biologically active substances widely employed as pharmaceuticals. Isolation of BIAs from their natural sources is an expensive and time-consuming procedure as they accumulate in very low levels in plant. Moreover, total synthesis is challenging due to the presence of stereogenic centers. In view of these considerations, green and scalable methods for BIA synthesis using fully enzymatic approaches are getting more and more attention. The aim of this paper is to review fully enzymatic strategies for producing the benzylisoquinoline central precursor, (S)-norcoclaurine and its derivatives. Specifically, we will detail the current status of synthesis of BIAs in microbial hosts as well as using isolated and recombinant enzymes.
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22
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Synthesis of Isoquinolinones via Regioselective Palladium-Catalyzed C–H Activation/Annulation. Catalysts 2017. [DOI: 10.3390/catal7110320] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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23
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Zaki RM, Radwan SM, Kamal El-Dean AM. A Convenient Synthetic Method and Spectral Characterization of New Tetrahydro[1,3]oxazinothieno[2,3-c]isoquinoline and Its Pyrimidine Derivatives. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700232] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Remon M. Zaki
- Chemistry Department, Faculty of Science; Assiut University; Assiut 71516 Egypt
| | - Shaban M. Radwan
- Chemistry Department, Faculty of Science; Assiut University; Assiut 71516 Egypt
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24
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Pavel IZ, Heller L, Sommerwerk S, Loesche A, Al-Harrasi A, Csuk R. Drotaverine - a Concealed Cytostatic! Arch Pharm (Weinheim) 2016; 350. [DOI: 10.1002/ardp.201600289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 11/06/2016] [Accepted: 11/07/2016] [Indexed: 01/28/2023]
Affiliation(s)
- Ioana Z. Pavel
- Department of Pathophysiology; Victor-Babes-University of Medicine and Pharmacy; Timisoara Romania
- Department of Pharmacognosy; Victor-Babes-University of Medicine and Pharmacy; Timisoara Romania
| | - Lucie Heller
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry; Halle (Saale) Germany
| | - Sven Sommerwerk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry; Halle (Saale) Germany
| | - Anne Loesche
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry; Halle (Saale) Germany
| | - Ahmed Al-Harrasi
- Chair of Oman's Medicinal Plants and Marine Natural Products; University of Nizwa, Birkat Al-Mauz; Nizwa Sultanate of Oman
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry; Halle (Saale) Germany
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25
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Ziemska J, Guśpiel A, Jarosz J, Nasulewicz-Goldeman A, Wietrzyk J, Kawęcki R, Pypowski K, Jarończyk M, Solecka J. Molecular docking studies, biological and toxicity evaluation of dihydroisoquinoline derivatives as potential anticancer agents. Bioorg Med Chem 2016; 24:5302-5314. [DOI: 10.1016/j.bmc.2016.08.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 08/05/2016] [Accepted: 08/27/2016] [Indexed: 11/26/2022]
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26
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Ali SM, Siddiqui R, Ong SK, Shah MR, Anwar A, Heard PJ, Khan NA. Identification and characterization of antibacterial compound(s) of cockroaches (Periplaneta americana). Appl Microbiol Biotechnol 2016; 101:253-286. [PMID: 27743045 DOI: 10.1007/s00253-016-7872-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/21/2016] [Accepted: 09/16/2016] [Indexed: 12/20/2022]
Abstract
Infectious diseases remain a significant threat to human health, contributing to more than 17 million deaths, annually. With the worsening trends of drug resistance, there is a need for newer and more powerful antimicrobial agents. We hypothesized that animals living in polluted environments are potential sources of antimicrobials. Under polluted milieus, organisms such as cockroaches encounter different types of microbes, including superbugs. Such creatures survive the onslaught of superbugs and are able to ward off disease by producing antimicrobial substances. Here, we characterized antibacterial properties in extracts of various body organs of cockroaches (Periplaneta americana) and showed potent antibacterial activity in crude brain extract against methicillin-resistant Staphylococcus aureus and neuropathogenic Escherichia coli K1. The size-exclusion spin columns revealed that the active compound(s) are less than 10 kDa in molecular mass. Using cytotoxicity assays, it was observed that pre-treatment of bacteria with lysates inhibited bacteria-mediated host cell cytotoxicity. Using spectra obtained with LC-MS on Agilent 1290 infinity liquid chromatograph, coupled with an Agilent 6460 triple quadruple mass spectrometer, tissues lysates were analysed. Among hundreds of compounds, only a few homologous compounds were identified that contained the isoquinoline group, chromene derivatives, thiazine groups, imidazoles, pyrrole-containing analogs, sulfonamides, furanones, and flavanones and known to possess broad-spectrum antimicrobial properties and anti-inflammatory, anti-tumour, and analgesic properties. Further identification, characterization, and functional studies using individual compounds can act as a breakthrough in developing novel therapeutics against various pathogens including superbugs.
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Affiliation(s)
- Salwa Mansur Ali
- Department of Biological Sciences, Faculty of Science and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Ruqaiyyah Siddiqui
- Department of Biological Sciences, Faculty of Science and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Seng-Kai Ong
- Department of Biological Sciences, Faculty of Science and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Muhammad Raza Shah
- International Center for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Ayaz Anwar
- International Center for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Peter J Heard
- Department of Biological Sciences, Faculty of Science and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Naveed Ahmed Khan
- Department of Biological Sciences, Faculty of Science and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia.
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27
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Zheng H, Dong Y, Li L, Sun B, Liu L, Yuan H, Lou H. Novel Benzo[a]quinolizidine Analogs Induce Cancer Cell Death through Paraptosis and Apoptosis. J Med Chem 2016; 59:5063-76. [PMID: 27077446 DOI: 10.1021/acs.jmedchem.6b00484] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Paraptosis is nonapoptotic cell death characterized by massive endoplasmic reticulum (ER)- or mitochondria-derived vacuoles. Induction of paraptosis offers significant advantages for the treatment of chemotherapy-resistant tumors compared with anticancer drugs that rely on apoptosis. Because some natural alkaloids induce paraptotic cell death, a novel series of benzo[a]quinolizidine derivatives were synthesized, and their antiproliferative activity and ability to induce cytoplasmic vacuolation were analyzed. Structural optimization led to the identification of the potent compound 22b, which inhibited cancer cell proliferation in vitro and in vivo and profoundly facilitated paraptosis-like cell death and induced caspase-dependent apoptosis. Further investigation revealed that 22b-mediated vacuolation originated from persistent ER stress and upregulation of LC3B. Paraptosis induced by benzo[a]quinolizidine derivatives thus represents an alternative strategy for cancer chemotherapy.
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Affiliation(s)
- Hongbo Zheng
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, ‡Department of Biochemistry and Molecular Biology, School of Medicine, and §National Glycoengineering Research Center, Shandong University , No.44 Western Wenhua Road, Jinan 17923, China
| | - Yiwen Dong
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, ‡Department of Biochemistry and Molecular Biology, School of Medicine, and §National Glycoengineering Research Center, Shandong University , No.44 Western Wenhua Road, Jinan 17923, China
| | - Lin Li
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, ‡Department of Biochemistry and Molecular Biology, School of Medicine, and §National Glycoengineering Research Center, Shandong University , No.44 Western Wenhua Road, Jinan 17923, China
| | - Bin Sun
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, ‡Department of Biochemistry and Molecular Biology, School of Medicine, and §National Glycoengineering Research Center, Shandong University , No.44 Western Wenhua Road, Jinan 17923, China
| | - Lei Liu
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, ‡Department of Biochemistry and Molecular Biology, School of Medicine, and §National Glycoengineering Research Center, Shandong University , No.44 Western Wenhua Road, Jinan 17923, China
| | - Huiqing Yuan
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, ‡Department of Biochemistry and Molecular Biology, School of Medicine, and §National Glycoengineering Research Center, Shandong University , No.44 Western Wenhua Road, Jinan 17923, China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, ‡Department of Biochemistry and Molecular Biology, School of Medicine, and §National Glycoengineering Research Center, Shandong University , No.44 Western Wenhua Road, Jinan 17923, China
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28
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Zaki RM, El Dean AMK, El Monem MIA, Seddik MA. Novel synthesis and reactions of pyrazolyl-substituted tetrahydrothieno[2,3- c]isoquinoline derivatives. HETEROCYCL COMMUN 2016; 22:103-109. [DOI: 10.1515/hc-2015-0204] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
Abstract
Treatment of isoquinolinecarboxamide 4a with triethyl orthoformate, chloroacetyl chloride or carbon disulfide afforded the pyrimidinone 7, oxopyrimidinethione 12 and chloromethylpyrimidinone 18, respectively. These products were used as versatile starting materials for synthesis of other heterocyclic compounds. The heterocyclic hydrazide 6 was also obtained.
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Affiliation(s)
- Remon M. Zaki
- Chemistry Department, Faculty of Science, Assiut University, 71516, Assiut, Egypt,
| | | | | | - Mohamed A. Seddik
- Chemistry Department, Faculty of Science, Assiut University, 71516, Assiut, Egypt
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29
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Yang HK, Tong YF, Wu S. A novel and efficient strategy involving a CuI catalyzed cascade reaction to synthesize acenaphtho[1,2-b]quinoline derivatives. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Zhao YH, Li Y, Guo T, Tang Z, Deng K, Zhao G. CuI-catalyzed domino reactions for the synthesis of benzoxazine-fused isoquinolines under microwave irradiation. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2015.1137944] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yun-Hui Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Yubo Li
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Tao Guo
- Chemistry and Chemical Engineering School, Henan University of Technology, Zhengzhou, Henan, China
| | - Zilong Tang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Keqin Deng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
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31
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Grigg R, Elboray EE, Akkarasamiyo S, Chuanopparat N, Dondas HA, Abbas-Temirek HH, Fishwick CWG, Aly MF, Kongkathip B, Kongkathip N. A facile palladium catalysed 3-component cascade route to functionalised isoquinolinones and isoquinolines. Chem Commun (Camb) 2016; 52:164-6. [DOI: 10.1039/c5cc07526b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We present a novel and facile route to functionalised isoquinolinones and isoquinolines in good yields.
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Affiliation(s)
| | | | - Sunisa Akkarasamiyo
- School of Chemistry
- University of Leeds
- Leeds
- UK
- Natural Products and Organic Synthesis Research Unit (NPOS)
| | - Nutthawat Chuanopparat
- School of Chemistry
- University of Leeds
- Leeds
- UK
- Natural Products and Organic Synthesis Research Unit (NPOS)
| | - H. Ali Dondas
- Department of Chemistry
- Faculty of Pharmacy
- Mersin University
- Mersin
- Turkey
| | | | | | - Moustafa F. Aly
- Department of Chemistry
- Faculty of Science at Qena
- South Valley University
- Qena
- Egypt
| | - Boonsong Kongkathip
- Natural Products and Organic Synthesis Research Unit (NPOS)
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Chatuchak
| | - Ngampong Kongkathip
- Natural Products and Organic Synthesis Research Unit (NPOS)
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Chatuchak
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32
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Sagar A, Nagarjuna Babu V, Shinde AH, Sharada DS. A metal-free cyclic iminium induced one-pot double annulation cascade: access to dihydroisoquinolinium (DHIQ) salts. Org Biomol Chem 2016; 14:10366-10370. [DOI: 10.1039/c6ob02089e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A reactive cyclic iminium induced one-pot Groebke–Blackburn–Bienayme (GBB) double annulation cascade (DAC) for the synthesis of skeletally diverse DHIQ salts has been described. The key features of this protocol are solvent-free, robust method, clean reaction profile and operational simplicity.
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Affiliation(s)
- A. Sagar
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | | | - Anand H. Shinde
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Duddu S. Sharada
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
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33
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Ma T, Hu N, Zhang Q, Ding C, Che G, Wu H, Sun Y, Ji Z, You J, Suo Y, Ding C. Simultaneous determination of five triterpenic acids in fourCorydalisherb medicines by reversed-phase high performance liquid chromatography–fluorescence-mass spectrometer (RP-HPLC–FLD-MS) based on pre-column derivatization. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1116092] [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)
- Tao Ma
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Na Hu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
| | - Qiulong Zhang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
- University of the Chinese Academy of Sciences, Beijing, China
| | | | - Guodong Che
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
| | - Hongliang Wu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
| | - Yanan Sun
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Zhongyin Ji
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Jinmao You
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
| | - Chenxu Ding
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining, China
- Qinghai Red Cross Hospital, Xining, China
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34
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Zhang Q, Luan G, Ma T, Hu N, Suo Y, Wang X, Ma X, Ding C. Application of chromatography technology in the separation of active alkaloids from Hypecoum leptocarpum
and their inhibitory effect on fatty acid synthase. J Sep Sci 2015; 38:4063-70. [DOI: 10.1002/jssc.201500848] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 09/24/2015] [Accepted: 09/27/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Qiulong Zhang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
- University of the Chinese Academy of Sciences; Beijing China
| | - Guangxiang Luan
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
- University of the Chinese Academy of Sciences; Beijing China
| | - Tao Ma
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
- University of the Chinese Academy of Sciences; Beijing China
| | - Na Hu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
- University of the Chinese Academy of Sciences; Beijing China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
| | - Xiaoyan Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
| | - Xiaofeng Ma
- University of the Chinese Academy of Sciences; Beijing China
| | - Chenxu Ding
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
- Qinghai Nationalities University; Xining China
- Key Laboratory for Plateau Crop Germplasm Innovation and Utilization of Qinghai Province; Xining China
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35
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Gandomkar S, Fischereder EM, Schrittwieser JH, Wallner S, Habibi Z, Macheroux P, Kroutil W. Enantioselective Oxidative Aerobic Dealkylation of N-Ethyl Benzylisoquinolines by Employing the Berberine Bridge Enzyme. Angew Chem Int Ed Engl 2015; 54:15051-4. [PMID: 26487450 DOI: 10.1002/anie.201507970] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Indexed: 12/24/2022]
Abstract
N-Dealkylation methods are well described for organic chemistry and the reaction is known in nature and drug metabolism; however, to our knowledge, enantioselective N-dealkylation has not been yet reported. In this study, exclusively the (S)-enantiomers of racemic N-ethyl tertiary amines (1-benzyl-N-ethyl-1,2,3,4-tetrahydroisoquinolines) were dealkylated to give the corresponding secondary (S)-amines in an enantioselective fashion at the expense of molecular oxygen. The reaction is catalyzed by the berberine bridge enzyme, which is known for CC bond formation. The dealkylation was demonstrated on a 100 mg scale and gave optically pure dealkylated products (ee>99 %).
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Affiliation(s)
- Somayyeh Gandomkar
- Institut für Chemie, Organische & Bioorganische Chemie, Universität Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz (Austria).,Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C. District 1, Evin, Daneshjou Blvd, Tehran (Iran)
| | - Eva-Maria Fischereder
- Institut für Chemie, Organische & Bioorganische Chemie, Universität Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz (Austria)
| | - Joerg H Schrittwieser
- Institut für Chemie, Organische & Bioorganische Chemie, Universität Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz (Austria)
| | - Silvia Wallner
- Institut für Biochemie, Technische Universität Graz, Petersgasse 12, 8010 Graz (Austria)
| | - Zohreh Habibi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C. District 1, Evin, Daneshjou Blvd, Tehran (Iran)
| | - Peter Macheroux
- Institut für Biochemie, Technische Universität Graz, Petersgasse 12, 8010 Graz (Austria)
| | - Wolfgang Kroutil
- Institut für Chemie, Organische & Bioorganische Chemie, Universität Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz (Austria)
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36
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Gandomkar S, Fischereder EM, Schrittwieser JH, Wallner S, Habibi Z, Macheroux P, Kroutil W. Enantioselektive oxidative aerobe Desalkylierung vonN-Ethylbenzyl- isochinolinen mithilfe des Berberin-Brücken-Enzyms. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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37
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Urvashi, Rastogi GK, Ginotra SK, Agarwal A, Tandon V. An expedient approach to 1,2-dihydroisoquinoline derivatives via cobalt catalysed 6-endo dig cyclization followed by Mannich condensation of o-alkynylarylaldimines. Org Biomol Chem 2015; 13:1000-7. [PMID: 25485624 DOI: 10.1039/c4ob02036g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly effective 6-endo dig cyclisation of o-alkynylaldimines to 1,2-dihydroisoquinolines has been described via direct and nitro Mannich condensation using inexpensive and readily available cobalt chloride as catalyst. This strategy provides an effective procedure for the synthesis of substituted 1,2-dihydroisoquinolines derivatives in moderate to high yields. An addition of pronucleophiles, such as nitromethane, acetone and α-hydroxyacetone, to o-alkynylarylaldimines has been achieved via isoquinolinium intermediate.
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Affiliation(s)
- Urvashi
- Chemical Biology Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
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38
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Kostochka ML, Zajicek J, Fuselier JA, Etienne MA, Sun L, Coy DH. Novel Tandem Aldol Intramolecular Cyclization of SubstitutedN-Benzylpiperidine-4-one: Synthesis of Novel-Type Nitrogen 2,8-Phenanthroline Heterocycles. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Michael L. Kostochka
- Peptide Research Laboratory, School of Medicine; Tulane University; New Orleans 70112 Louisiana USA
| | - Jaroslav Zajicek
- Magnetic Resonance Research Center, Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame 46556 Indiana USA
| | - Joseph A. Fuselier
- Peptide Research Laboratory, School of Medicine; Tulane University; New Orleans 70112 Louisiana USA
| | - Marcus A. Etienne
- Peptide Research Laboratory, School of Medicine; Tulane University; New Orleans 70112 Louisiana USA
| | - Lichun Sun
- Peptide Research Laboratory, School of Medicine; Tulane University; New Orleans 70112 Louisiana USA
| | - David H. Coy
- Peptide Research Laboratory, School of Medicine; Tulane University; New Orleans 70112 Louisiana USA
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39
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Zhu R, Xu Z, Ding W, Liu S, Shi X, Lu X. Efficient and Practical Syntheses of Enantiomerically Pure (S)-(−)-Norcryptostyline I, (S)-(−)-Norcryptostyline II, (R)-(+)-Salsolidine and (S)-(−)-Norlaudanosineviaa Resolution-Racemization Method. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400471] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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Dell'Acqua M, Pirovano V, Confalonieri G, Arcadi A, Rossi E, Abbiati G. Synthesis of 3-benzylisoquinolines by domino imination/cycloisomerisation of 2-propargylbenzaldehydes. Org Biomol Chem 2014; 12:8019-30. [DOI: 10.1039/c4ob01583e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Alkaloids: an overview of their antibacterial, antibiotic-enhancing and antivirulence activities. Int J Antimicrob Agents 2014; 44:377-86. [PMID: 25130096 DOI: 10.1016/j.ijantimicag.2014.06.001] [Citation(s) in RCA: 347] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 06/20/2014] [Indexed: 11/22/2022]
Abstract
With reports of pandrug-resistant bacteria causing untreatable infections, the need for new antibacterial therapies is more pressing than ever. Alkaloids are a large and structurally diverse group of compounds that have served as scaffolds for important antibacterial drugs such as metronidazole and the quinolones. In this review, we highlight other alkaloids with development potential. Natural, semisynthetic and synthetic alkaloids of all classes are considered, looking first at those with direct antibacterial activity and those with antibiotic-enhancing activity. Potent examples include CJ-13,136, a novel actinomycete-derived quinolone alkaloid with a minimum inhibitory concentration of 0.1 ng/mL against Helicobacter pylori, and squalamine, a polyamine alkaloid from the dogfish shark that renders Gram-negative pathogens 16- to >32-fold more susceptible to ciprofloxacin. Where available, information on toxicity, structure-activity relationships, mechanisms of action and in vivo activity is presented. The effects of alkaloids on virulence gene regulatory systems such as quorum sensing and virulence factors such as sortases, adhesins and secretion systems are also described. The synthetic isoquinoline alkaloid virstatin, for example, inhibits the transcriptional regulator ToxT in Vibrio cholerae, preventing expression of cholera toxin and fimbriae and conferring in vivo protection against intestinal colonisation. The review concludes with implications and limitations of the described research and directions for future research.
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Matviiuk T, Mori G, Lherbet C, Rodriguez F, Pasca MR, Gorichko M, Guidetti B, Voitenko Z, Baltas M. Synthesis of 3-heteryl substituted pyrrolidine-2,5-diones via catalytic Michael reaction and evaluation of their inhibitory activity against InhA and Mycobacterium tuberculosis. Eur J Med Chem 2014; 71:46-52. [DOI: 10.1016/j.ejmech.2013.10.069] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 10/16/2013] [Accepted: 10/28/2013] [Indexed: 10/26/2022]
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43
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Dighe SU, Batra S. Iodine-mediated electrophilic tandem cyclization of 2-alkynylbenzaldehydes with anthranilic acid leading to 1,2-dihydroisoquinoline-fused benzoxazinones. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.08.086] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Pingaew R, Prachayasittikul S, Ruchirawat S, Prachayasittikul V. Tungstophosphoric acid catalyzed synthesis of N-sulfonyl-1,2,3,4-tetrahydroisoquinoline analogs. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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El-Dean AMK, Radwan SM, Zaki RM. Synthesis of Morphlinotetrahydrothieno[2,3-c]Isoquinolines. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200800193] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Dawood KM, Ragab EA, Khedr NA. Facile Access to Benzothiazole-Containing Pyrrolo[1,2-a]quinolines and Pyrrolo[2,1-a]isoquinolinesviaNitrogen Ylides. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200900170] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Niu X, Li W, Xu H, Liu X, Qi L. Simultaneous quantification of 11 isoquinoline alkaloids in Corydalis impatiens
(Pall.) Fisch by HPLC. J Sep Sci 2013; 36:2090-5. [DOI: 10.1002/jssc.201300036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 04/07/2013] [Accepted: 04/12/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaofeng Niu
- School of Medicine; Xi'an Jiaotong University; Xi'an City P.R. China
| | - Weifeng Li
- School of Medicine; Xi'an Jiaotong University; Xi'an City P.R. China
| | - Hongbo Xu
- School of Medicine; Xi'an Jiaotong University; Xi'an City P.R. China
| | - Xia Liu
- School of Medicine; Xi'an Jiaotong University; Xi'an City P.R. China
| | - Lin Qi
- School of Medicine; Xi'an Jiaotong University; Xi'an City P.R. China
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Chung KS, Choi HE, Shin JS, Cho YW, Choi JH, Cho WJ, Lee KT. 6,7-Dimethoxy-3-(3-methoxyphenyl)isoquinolin-1-amine induces mitotic arrest and apoptotic cell death through the activation of spindle assembly checkpoint in human cervical cancer cells. Carcinogenesis 2013; 34:1852-60. [DOI: 10.1093/carcin/bgt133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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49
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Orejarena Pacheco JC, Lahm G, Opatz T. Synthesis of Alkaloids by Stevens Rearrangement of Nitrile-Stabilized Ammonium Ylides: (±)-Laudanosine, (±)-Laudanidine, (±)-Armepavine, (±)-7-Methoxycryptopleurine, and (±)-Xylopinine. J Org Chem 2013; 78:4985-92. [DOI: 10.1021/jo400659n] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Günther Lahm
- Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Till Opatz
- Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
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50
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Vandekerckhove S, D'hooghe M. Exploration of aziridine- and β-lactam-based hybrids as both bioactive substances and synthetic intermediates in medicinal chemistry. Bioorg Med Chem 2013; 21:3643-7. [PMID: 23684232 DOI: 10.1016/j.bmc.2013.04.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 04/03/2013] [Indexed: 11/19/2022]
Abstract
The concept of pharmacophore hybridization is attracting an increasing interest from medicinal chemists. Whereas the main motivation for the application of this methodology relates to the pharmacological advantages associated with hybrid molecules, molecular hybridization can also deliver a synthetic advantage through selective chemical modification of the more reactive entity within hybrid systems. Moreover, if both features are combined, new hybrid structures result displaying both a biological and a synthetic benefit, and elaboration of this methodology might culminate in structural diversity and chemical novelty. In this perspective, a new approach based on hybrid structures combining a biologically interesting yet rather chemically reactive nucleus with a privileged heterocyclic scaffold is discussed by means of β-lactam-purine chimeras useful in antiviral research and aziridine-(iso)quinoline hybrids for antimalarial purposes.
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Affiliation(s)
- Stéphanie Vandekerckhove
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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