1
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Wang Y, Huang Y, Li Y, Li K, Luo Z. A TEMPO promoted tandem reaction of 2-aminobenzophenones and benzylamines under electrochemical conditions. Org Biomol Chem 2024; 22:1983-1987. [PMID: 38358360 DOI: 10.1039/d4ob00037d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
This study describes the efficient synthesis of quinazolines promoted by TEMPO via electro-catalysis with 2-aminobenzophenones and benzylamines. The method exhibited remarkable chemoselectivity under mild reaction conditions. A series of quinazolines could be obtained in moderate to good yields. In addition, control experiments were carried out to verify the reaction mechanism. Furthermore, the synthesis on the gram scale was conducted successfully to give the target product.
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Affiliation(s)
- Yu Wang
- School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Yekai Huang
- School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Yanan Li
- School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Kuiliang Li
- School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Zaigang Luo
- School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, China.
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2
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Young T, Laroche O, Walker SP, Miller MR, Casanovas P, Steiner K, Esmaeili N, Zhao R, Bowman JP, Wilson R, Bridle A, Carter CG, Nowak BF, Alfaro AC, Symonds JE. Prediction of Feed Efficiency and Performance-Based Traits in Fish via Integration of Multiple Omics and Clinical Covariates. BIOLOGY 2023; 12:1135. [PMID: 37627019 PMCID: PMC10452023 DOI: 10.3390/biology12081135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023]
Abstract
Fish aquaculture is a rapidly expanding global industry, set to support growing demands for sources of marine protein. Enhancing feed efficiency (FE) in farmed fish is required to reduce production costs and improve sector sustainability. Recognising that organisms are complex systems whose emerging phenotypes are the product of multiple interacting molecular processes, systems-based approaches are expected to deliver new biological insights into FE and growth performance. Here, we establish 14 diverse layers of multi-omics and clinical covariates to assess their capacities to predict FE and associated performance traits in a fish model (Oncorhynchus tshawytscha) and uncover the influential variables. Inter-omic relatedness between the different layers revealed several significant concordances, particularly between datasets originating from similar material/tissue and between blood indicators and some of the proteomic (liver), metabolomic (liver), and microbiomic layers. Single- and multi-layer random forest (RF) regression models showed that integration of all data layers provide greater FE prediction power than any single-layer model alone. Although FE was among the most challenging of the traits we attempted to predict, the mean accuracy of 40 different FE models in terms of root-mean square errors normalized to percentage was 30.4%, supporting RF as a feature selection tool and approach for complex trait prediction. Major contributions to the integrated FE models were derived from layers of proteomic and metabolomic data, with substantial influence also provided by the lipid composition layer. A correlation matrix of the top 27 variables in the models highlighted FE trait-associations with faecal bacteria (Serratia spp.), palmitic and nervonic acid moieties in whole body lipids, levels of free glycerol in muscle, and N-acetylglutamic acid content in liver. In summary, we identified subsets of molecular characteristics for the assessment of commercially relevant performance-based metrics in farmed Chinook salmon.
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Affiliation(s)
- Tim Young
- Aquaculture Biotechnology Research Group, Department of Environmental Science, School of Science, Private Bag 92006, Auckland 1142, New Zealand
- The Centre for Biomedical and Chemical Sciences, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
| | | | | | - Matthew R. Miller
- Cawthron Institute, Nelson 7010, New Zealand
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart Private Bag 49, Hobart 7005, Australia
| | | | | | - Noah Esmaeili
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart Private Bag 49, Hobart 7005, Australia
| | - Ruixiang Zhao
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart Private Bag 49, Hobart 7005, Australia
| | - John P. Bowman
- Tasmanian Institute of Agricultural Research, University of Tasmania, Hobart 7005, Australia
| | - Richard Wilson
- Central Science Laboratory, Research Division, University of Tasmania, Hobart 7001, Australia
| | - Andrew Bridle
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart Private Bag 49, Hobart 7005, Australia
| | - Chris G. Carter
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart Private Bag 49, Hobart 7005, Australia
- Blue Economy Cooperative Research Centre, Launceston 7250, Australia
| | - Barbara F. Nowak
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart Private Bag 49, Hobart 7005, Australia
| | - Andrea C. Alfaro
- Aquaculture Biotechnology Research Group, Department of Environmental Science, School of Science, Private Bag 92006, Auckland 1142, New Zealand
| | - Jane E. Symonds
- Cawthron Institute, Nelson 7010, New Zealand
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart Private Bag 49, Hobart 7005, Australia
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3
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Feng M, Yan Q, Yang L, Ye Y, Liu G, Wang W. Selective synthesis of 2‐substituted 2,3‐dihydroquinazolin‐4(1
H
)‐ones and quinazolin‐4(3
H
)‐ones catalyzed by Schiff base dioxomolybdenum(VI) complex. INT J CHEM KINET 2022. [DOI: 10.1002/kin.21622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Mengmeng Feng
- School of Chemistry and Material Science Ludong University Yantai China
| | - Qingmin Yan
- School of Chemistry and Material Science Ludong University Yantai China
| | - Lan Yang
- School of Chemistry and Material Science Ludong University Yantai China
| | - Yanan Ye
- School of Chemistry and Material Science Ludong University Yantai China
| | - Gang Liu
- School of Chemistry and Material Science Ludong University Yantai China
| | - Weili Wang
- School of Chemistry and Material Science Ludong University Yantai China
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4
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Norouzi FH, Foroughifar N, Khajeh-Amiri A, Pasdar H. A novel powerful Choline Chloride – Thiourea /Sulfuric Acid, efficient and recyclable catalyst via microwave‐assisted for the synthesis of Quinazolin- 4(3H)–one derivatives as Antibacterial Agents in green media. CURRENT MICROWAVE CHEMISTRY 2022. [DOI: 10.2174/2213335609666220324145341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Choline Chloride - Thiourea / Sulfuric Acid is a powerful and efficient green catalyst used for one-pot synthesis of quinazoline-4 (3H) -one derivatives via a reaction between various amines, acetic anhydride, and anthranilic acid under microwave irradiation and solvent-free conditions (4a-q). Microwave irradiation, which is a faster, more cost-effective, less energy-intensive, and more efficient method than conventional heating, has been used to synthesize some quinazolinone derivatives.
Introduction:
For the past ten years, one of the major subjects in synthetic organic chemistry has been green synthesis, which has used efficient and environmentally friendly methods to synthesize biological compounds. The use of catalysts has significant advantages, including ease of preparation and separation, chemical and thermal stability, and environmental friendliness due to features such as reusability, low cost, and efficient, easy workup techniques. Therefore, the mechanism is performed by a non-toxic organic catalyst that uses the least energy and chemical reactants in accordance with the principles of green chemistry and least waste.
Methods:
One-pot and sequential addition methods have been used to synthesize quinazolinone derivatives. In the sequential addition method, the reaction was started by adding acetic anhydride and anthranilic acid to the reaction vessel under microwave irradiation and continued by adding choline chloride thiourea / sulfuric acid as efficient recyclable green catalysts and the desired amine. In vitro, the well diffusion method against different pathogenic strains was used to evaluate the antimicrobial activity of quinazoline-4 (3H) -one derivatives. Pathogenic strains used were Candida albicans ATCC 10231 (yeast), Aspergillus niger ATCC 16404 (fungus), Escherichia coli ATCC 8739, Pseudomonas aeruginosa ATCC 9027 (bacteria) and ATCC 6538, and Staphylococcus aureus S. epidermidis ATCC 12228. Pyrimidine-containing compounds in which the 3-hydroxyl, 2,5-Dimethoxy, 4-bromo, 4 ‐ Methoxy, and 4 ‐ chloro groups are attached to the phenyl ring of pyrimidine exhibit antimicrobial properties.
Results:
In a short reaction time, a variety of biologically active quinazolinone derivatives were synthesized with a high efficiency. According to the results, it was found that with aliphatic amines, the reaction time was shorter and the reaction efficiency was higher. Products synthesized from aromatic amines had more antibacterial properties.
Conclusion:
In this work, a variety of 2-methyl-quinazoline-4 (3H) -one derivatives (4a–q) were synthesized as potent antibacterial agents under microwave irradiation and solvent-free conditions in the presence of ChCl-thiourea / H2SO4 as an efficient, eco-friendly, and recyclable catalyst.
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Affiliation(s)
- Fateme Haji Norouzi
- Department of Chemistry, Tehran North Branch, Islamic Azad University, Tehran, Iran
| | - Naser Foroughifar
- Department of Chemistry, Tehran North Branch, Islamic Azad University, Tehran, Iran
| | | | - Hoda Pasdar
- Department of Chemistry, Tehran North Branch, Islamic Azad University, Tehran, Iran
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5
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Abstract
This review deals with the synthesis of naturally occurring alkaloids containing partially or completely saturated pyrimidine nuclei. The interest in these compounds is associated with their structural diversity, high biological activity and toxicity. The review is divided into four parts, each of which describes a number of synthetic methodologies toward structurally different naturally occurring alkaloids containing saturated cyclic six-membered amidine, guanidine, aminal and urea (thiourea) moieties, respectively. The development of various synthetic strategies for the preparation of these compounds has remarkably increased during the past few decades. This is primarily due to the fact that some of these compounds are isolated only in limited quantities, which makes it practically impossible to study their full structural characteristics and biological activity.
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6
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Huang C, Zhou Y, Yu XX, Wang LS, Wu YD, Wu AX. I 2/CuCl 2-Copromoted Formal [4 + 1 + 1] Cyclization of Methyl Ketones, 2-Aminobenzonitriles, and Ammonium Acetate: Direct Access to 2-Acyl-4-aminoquinazolines. J Org Chem 2021; 86:16916-16925. [PMID: 34753287 DOI: 10.1021/acs.joc.1c02096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We herein report an I2/CuCl2-copromoted diamination of C(sp3)-H bonds for the preparation of 2-acyl-4-aminoquinazolines from methyl ketones, 2-aminobenzonitriles, and ammonium acetate. This reaction features operational simplicity, commercially available substrates, mild reaction conditions, and good functional group compatibility. Mechanistic studies indicate that CuCl2 plays a pivotal role in this transformation. This study uses a methyl group as a novel input to construct 2-acyl-4-aminoquinazoline derivatives for the first time.
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Affiliation(s)
- Chun Huang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao-Xiao Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Li-Sheng Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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7
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Üngören ŞH, Öztürk M, Değerli EA. The Motifs from Isocytosine and Fused Isocytosine with Quinazoline: Organocatalytic Cascade Reaction of β‐Ketoamides. ChemistrySelect 2021. [DOI: 10.1002/slct.202100203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ş. Hakan Üngören
- Department of Chemistry Yozgat Bozok University, Faculty of Art and Science Yozgat 66200 Turkey
| | - Merve Öztürk
- Department of Chemistry Yozgat Bozok University, Faculty of Art and Science Yozgat 66200 Turkey
| | - E. Aysel Değerli
- Department of Chemistry Yozgat Bozok University, Faculty of Art and Science Yozgat 66200 Turkey
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8
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Li DW, Zhang M, Feng L, Huang SS, Zhang BJ, Liu SS, Deng S, Wang C, Ma XC, Leng AJ. Alkaloids from the nearly ripe fruits of Evodia rutaecarpa and their bioactivities. Fitoterapia 2020; 146:104668. [DOI: 10.1016/j.fitote.2020.104668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023]
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9
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Tao S, Liu R, Zhou J, Zhu Y. Palladium‐Catalyzed One‐Pot Coupling / Cyclization through Mo(CO)
6
as the Carbon Monoxide Donor: Synthesis of Quinazolinones. ChemistrySelect 2020. [DOI: 10.1002/slct.202002111] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shou‐Wei Tao
- College of Pharmaceutical Sciences Soochow University Suzhou 215123 China
| | - Rui‐Qing Liu
- College of Pharmaceutical Sciences Soochow University Suzhou 215123 China
| | - Jing‐Ya Zhou
- College of Pharmaceutical Sciences Soochow University Suzhou 215123 China
| | - Yong‐Ming Zhu
- College of Pharmaceutical Sciences Soochow University Suzhou 215123 China
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10
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Bose DS, Ramesh N. A convenient access to 2,4-disubstituted quinazolines via one-pot three-component reaction under mild conditions †. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1744014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- D. Subhas Bose
- Organic and Biomolecular Chemistry Division, Department of Energy and Environmental Engineering, Fine Chemicals Lab, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Nukala Ramesh
- Organic and Biomolecular Chemistry Division, Department of Energy and Environmental Engineering, Fine Chemicals Lab, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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11
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Azev YA, Koptyaeva OS, Eltsov OS, Yakovleva YA, Pospelova TA, Bakulev VA. Quinazoline addition to indole hydrazone derivatives in TFA as a facile synthesis of trifluoroacetylhydrazide quinazoline σ-adducts. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Jia FC, Chen TZ, Hu XQ. TFA/TBHP-promoted oxidative cyclisation for the construction of tetracyclic quinazolinones and rutaecarpine. Org Chem Front 2020. [DOI: 10.1039/d0qo00345j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient TFA/TBHP-promoted oxidative cyclisation of readily available isatins with 1,2,3,4-tetrahydroisoquinolines has been firstly developed. The potential utility of this strategy was demonstrated by one-step synthesis of a natural alkaloid Rutaecarpin.
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Affiliation(s)
- Feng-Cheng Jia
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430073
- China
| | - Tian-Zhi Chen
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430073
- China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- School of Chemistry and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
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13
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Kruk J, Dziurka M, Płytycz B. Identification of new fluorophores in coelomic fluid of Eisenia andrei earthworms. PLoS One 2019; 14:e0214757. [PMID: 30921437 PMCID: PMC6438515 DOI: 10.1371/journal.pone.0214757] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/19/2019] [Indexed: 01/06/2023] Open
Abstract
Coelomic fluid of Eisenia andrei contains a number of UV-fluorescent compounds. In the present study we have found that four of these compounds showed identical fluorescence excitation and emission maxima at 310 nm and 364 nm, respectively, suggesting they share the same chromophore. NMR and HR-MS spectroscopy of the most abundant fluorophore reavealed that its molecule is composed of two quinazoline-2,4-dione rings connected by spermine linker. This compound was earlier indentified in Eisenia andrei as SP-8203. Moreover, we have identified the structure of the two other fluorophores, one differing from SP-8203 by the absence of N-acetyl group, the compound not reported in any other organisms before, and the other already found in E. fetida and regarded as species specific. However, our results indicate that this metabolite is also present in E. andrei in significant amounts. The possible origin and function of these new metabolites is discussed.
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Affiliation(s)
- Jerzy Kruk
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa, Kraków, Poland
- * E-mail:
| | - Michał Dziurka
- Polish Academy of Sciences, Institute of Plant Physiology, Niezapominajek, Kraków, Poland
| | - Barbara Płytycz
- Department of Evolutionary Immunology, Institute of Zoology and Biochemical Research, Faculty of Biology, Jagiellonian University, Gronostajowa, Kraków, Poland
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14
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Holzschneider K, Mohr F, Kirsch SF. Synthesis and Reactivity of 3,3-Diazidooxindoles. Org Lett 2018; 20:7066-7070. [DOI: 10.1021/acs.orglett.8b03013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kristina Holzschneider
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
| | | | - Stefan F. Kirsch
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
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15
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Eidi E, Kassaee MZ, Nasresfahani Z, Cummings PT. Synthesis of quinazolines over recyclable Fe3
O4
@SiO2
-PrNH2
-Fe3+
nanoparticles: A green, efficient, and solvent-free protocol. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4573] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Esmaiel Eidi
- Department of Chemistry; Tarbiat Modares University; P.O. Box 14155-175 Tehran Iran
| | | | - Zahra Nasresfahani
- Department of Chemistry; Tarbiat Modares University; P.O. Box 14155-175 Tehran Iran
| | - Peter T. Cummings
- Chemical and Biomolecular Engineering; Vanderbilt University; Nashville TN 37240 USA
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16
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Synthesis of some quinazolinone derivatives using magnetic nanoparticles-supported tungstic acid as antimicrobial agents. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1337-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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17
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Shang XF, Morris-Natschke SL, Liu YQ, Guo X, Xu XS, Goto M, Li JC, Yang GZ, Lee KH. Biologically active quinoline and quinazoline alkaloids part I. Med Res Rev 2018; 38:775-828. [PMID: 28902434 PMCID: PMC6421866 DOI: 10.1002/med.21466] [Citation(s) in RCA: 192] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/18/2017] [Accepted: 08/02/2017] [Indexed: 01/11/2023]
Abstract
Quinoline and quinazoline alkaloids, two important classes of N-based heterocyclic compounds, have attracted tremendous attention from researchers worldwide since the 19th century. Over the past 200 years, many compounds from these two classes were isolated from natural sources, and most of them and their modified analogs possess significant bioactivities. Quinine and camptothecin are two of the most famous and important quinoline alkaloids, and their discoveries opened new areas in antimalarial and anticancer drug development, respectively. In this review, we survey the literature on bioactive alkaloids from these two classes and highlight research achievements prior to the year 2008 (Part I). Over 200 molecules with a broad range of bioactivities, including antitumor, antimalarial, antibacterial and antifungal, antiparasitic and insecticidal, antiviral, antiplatelet, anti-inflammatory, herbicidal, antioxidant and other activities, were reviewed. This survey should provide new clues or possibilities for the discovery of new and better drugs from the original naturally occurring quinoline and quinazoline alkaloids.
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Affiliation(s)
- Xiao-Fei Shang
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, P.R. China
| | - Susan L. Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Xiao Guo
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, P.R. China
| | - Xiao-Shan Xu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Jun-Cai Li
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Guan-Zhou Yang
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
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18
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Mekala N, Buddepu SR, Dehury SK, Moturu KMVR, Indukuri SKV, Vasireddi UR, Parimi AR. A novel strategy for the manufacture of idelalisib: controlling the formation of an enantiomer. RSC Adv 2018; 8:15863-15869. [PMID: 35539498 PMCID: PMC9080089 DOI: 10.1039/c8ra00407b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/13/2018] [Indexed: 01/10/2023] Open
Abstract
A novel and scalable synthesis of 5-fluoro-3-phenyl-2-[(1S)-1-(9H-purin-6-ylamino)propyl]-4(3H)-quinazolinone, idelalisib 1, has been developed. This strategy controls the desfluoro impurity of 13 during reduction of nitro intermediate 4, and also arrests the formation of the enantiomer during cyclisation of diamide 17, without affecting the neighbouring chiral centre. This process is demonstrated on a larger scale in the laboratory and achieved good chemical and chiral purities coupled with good yields.
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Affiliation(s)
- Nagaraju Mekala
- Oncology Division, Process Development Laboratories, Laurus Laboratories Limited ICICI Knowledge Park, Turkapally, Shameerpet Hyderabad-500 078 Telangana India +91 40 23480481 +91 40 30413393
- Department of Organic Chemistry, Food, Drugs & Water, School of Chemistry, Andhra University Visakhapatnam-530 003 Andhra Pradesh India
| | - Srinivasa Rao Buddepu
- Oncology Division, Process Development Laboratories, Laurus Laboratories Limited ICICI Knowledge Park, Turkapally, Shameerpet Hyderabad-500 078 Telangana India +91 40 23480481 +91 40 30413393
- Department of Organic Chemistry, Food, Drugs & Water, School of Chemistry, Andhra University Visakhapatnam-530 003 Andhra Pradesh India
| | - Sanjay K Dehury
- Oncology Division, Process Development Laboratories, Laurus Laboratories Limited ICICI Knowledge Park, Turkapally, Shameerpet Hyderabad-500 078 Telangana India +91 40 23480481 +91 40 30413393
| | - Krishna Murthy V R Moturu
- Oncology Division, Process Development Laboratories, Laurus Laboratories Limited ICICI Knowledge Park, Turkapally, Shameerpet Hyderabad-500 078 Telangana India +91 40 23480481 +91 40 30413393
| | - Sunil Kumar V Indukuri
- Oncology Division, Process Development Laboratories, Laurus Laboratories Limited ICICI Knowledge Park, Turkapally, Shameerpet Hyderabad-500 078 Telangana India +91 40 23480481 +91 40 30413393
| | - Umamaheswara Rao Vasireddi
- Oncology Division, Process Development Laboratories, Laurus Laboratories Limited ICICI Knowledge Park, Turkapally, Shameerpet Hyderabad-500 078 Telangana India +91 40 23480481 +91 40 30413393
| | - Atchuta R Parimi
- Department of Organic Chemistry, Food, Drugs & Water, School of Chemistry, Andhra University Visakhapatnam-530 003 Andhra Pradesh India
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19
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Voskoboynik OY, Kolomoets OS, Palchikov VA, Kovalenko SI, Belenichev IF, Shishkina SV. [1,2,4]Triazino[2,3-с]quinazolines 2*. Synthesis, structure, and anticonvulsant activity of new 3′-R1-spiro[(aza/oxa/thia)cycloalkyl-1(3, 4),6′-[1,2,4]triazino[2,3-c]quinazolin]-2′(7′H)-ones. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2184-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Chemical Constituents of Nitraria retusa Grown in Egypt. Chem Nat Compd 2017. [DOI: 10.1007/s10600-017-2182-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Zieliński TP, Duda K, Ostrowska K. Fast MinMax energy-based phase correction method for NMR spectra with linear phase distortion. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2017; 281:104-117. [PMID: 28586738 DOI: 10.1016/j.jmr.2017.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/14/2017] [Accepted: 05/25/2017] [Indexed: 06/07/2023]
Abstract
This paper addresses the problem of phase correction of dense NMR spectra on the example of the etoxy derivative of the fused heterocyclic system 5,6,10b-triazaacephenanthrylene (TAAP-OEt). A new estimation method for the linear phase correction coefficients is proposed that successfully extends the min-max (minimization of maximum errors) approach of Siegel (1981). Distinctive to the Siegel method, the smallest values of the real part of the discrete Fourier transform (DFT) spectrum are maximized, not for the whole spectrum but only for DFT bins near the peaks selected by anew energy-based criterion. Additionally, the method makes use of two one-parameter optimizations for finding the phase correction line coefficients and not the single two-parameter search. The new method is demonstrated to be precise, fast and robust against additive noise. The method's properties are verified in comparison with the state-of-the-art algorithms of Chen et al. (2002) and Bao et al. (2013) for laboratory recorded TAAP-OEt FID data and for simulated TAAP-OEt signal consisting of the sum of more than 100 complex damped exponentials. Extensive simulations were also conducted on the set of test signals derived from the TAAP-OEt signal by deterministic and pseudorandom manipulation of its content. The components of the signal model were identified by the Bertocco-Yoshida Interpolated DFT (IpDFT) algorithm with a spectral leakage correction. Simulated signals were embedded in the additive Gaussian noise, and the noise-robustness of all of the algorithms was evaluated. The obtained results demonstrate that the proposed method outperforms the Chen and the Bao algorithms, being more than 100 times faster than the Bao method (for a signal having 216 samples).
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Affiliation(s)
- Tomasz P Zieliński
- Department of Telecommunications, AGH University of Science and Technology, Kraków, Poland
| | - Krzysztof Duda
- Department of Measurement and Electronics, AGH University of Science and Technology, Kraków, Poland.
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22
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Hudwekar AD, Reddy GL, Verma PK, Gupta S, Vishwakarma RA, Sawant SD. Transition Metal-free Single Step Approach for Arylated Pyrazolopyrimidinones and Quinazolinones Using Benzylamines/Benzylalcohols/Benzaldehydes. ChemistrySelect 2017. [DOI: 10.1002/slct.201700896] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Abhinandan D. Hudwekar
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
| | - G. Lakshma Reddy
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
| | - Praveen K. Verma
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
| | - Sorav Gupta
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
| | - Sanghapal D. Sawant
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
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23
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Bitterness and antibacterial activities of constituents from Evodia rutaecarpa. Altern Ther Health Med 2017; 17:180. [PMID: 28356098 PMCID: PMC5372309 DOI: 10.1186/s12906-017-1701-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 03/23/2017] [Indexed: 11/10/2022]
Abstract
Background Bitter herbs are important in Traditional Chinese Medicine and the Electronic Tongue (e-Tongue) is an instrument that can be trained to evaluate bitterness of bitter herbs and their constituents. The aim of this research was to evaluate bitterness of limonoids and alkaloids from Evodia rutaecarpa to demonstrate that they are main bitter material basic of E. rutaecarpa. Methods Nine compounds, including limonoids, indoloquinazoline alkaloids and quinolone alkaloids, were isolated, identified and analyzed by the e-Tongue. Additionally, the antibacterial activities of the nine compounds were evaluated against E. coli and S. aureus. Results All the nine compounds had bitter taste and antibacterial activities to some extent. Among them, limonoids, which were the bitterest compounds, had greater antibacterial activities than alkaloids. And there is a positive correlation between bitter taste and antibacterial activities. Conclusions It was confirmed in our study that limonoids, indoloquinazoline alkaloids and quinolone alkaloids are main bitter material basic of E. rutaecarpa based on two evaluation methods of e-Tongue and antibacterial experiment. In addition, the e-Tongue technique is a suitable new method to measure bitter degree in herbs. Electronic supplementary material The online version of this article (doi:10.1186/s12906-017-1701-8) contains supplementary material, which is available to authorized users.
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24
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Intagliata S, Modica MN, Pittalà V, Salerno L, Siracusa MA, Cagnotto A, Salmona M, Kurczab R, Romeo G. New N- and O-arylpiperazinylalkyl pyrimidines and 2-methylquinazolines derivatives as 5-HT 7 and 5-HT 1A receptor ligands: Synthesis, structure-activity relationships, and molecular modeling studies. Bioorg Med Chem 2016; 25:1250-1259. [PMID: 28063784 DOI: 10.1016/j.bmc.2016.12.039] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 12/20/2016] [Accepted: 12/23/2016] [Indexed: 11/30/2022]
Abstract
Based on our earlier studies of structure activity relationships on 4-substituted piperazine derivatives, in this work we synthesized a novel set of long-chain arylpiperazines with the purpose of elucidating if some structural modifications in the terminal fragment could affect the binding affinity for the 5-HT7 and 5-HT1A receptors. In this new series, the quinazolinone system of the previous derivatives was replaced by a 6-phenylpyrimidine or a 2-methylquinazoline, which were used as versatile building blocks for the preparation of new compounds. A 4-arylpiperazine moiety through a five methylene chain was anchored at the nitrogen or oxygen atom of the heterocyclic scaffolds. The substituents borne by the piperazine nucleus were phenyl, phenylmethyl, 3- or 4-chlorophenyl, and 2-ethoxyphenyl. Binding tests, performed on human cloned 5-HT7 and 5-HT1A receptors, showed that, among the newly synthesized derivatives, 4-[5-[4-(2-ethoxyphenyl)-1-piperazinyl]pentoxy]-6-phenyl-pyrimidine (13) and 3-[5-[4-(2-ethoxyphenyl)-1-piperazinyl]pentyl]-2-methyl-4(3H)-quinazolinone (20) displayed the best affinity values, Ki=23.5 and 8.42nM for 5-HT7 and 6.96 and 2.99nM for 5-HT1A receptors, respectively. Moreover, the functional properties for both compounds were further evaluated using the cAMP assay. Finally, a molecular modeling study has been performed for 5-HT7 and 5-HT1A receptor homology models to investigate the binding mode of N- and O-alkylated pyrimidinones/pyrimidines 4-13, 2-methylquinazolinones/quinazolines 17-22, and previously reported 2- and 3-substituted quinazolinones 23-30.
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Affiliation(s)
- Sebastiano Intagliata
- Dipartimento di Scienze del Farmaco, Università di Catania, viale A. Doria 6, Catania 95125, Italy.
| | - Maria N Modica
- Dipartimento di Scienze del Farmaco, Università di Catania, viale A. Doria 6, Catania 95125, Italy
| | - Valeria Pittalà
- Dipartimento di Scienze del Farmaco, Università di Catania, viale A. Doria 6, Catania 95125, Italy
| | - Loredana Salerno
- Dipartimento di Scienze del Farmaco, Università di Catania, viale A. Doria 6, Catania 95125, Italy
| | - Maria A Siracusa
- Dipartimento di Scienze del Farmaco, Università di Catania, viale A. Doria 6, Catania 95125, Italy
| | - Alfredo Cagnotto
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", via La Masa 19, Milano 20156, Italy
| | - Mario Salmona
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", via La Masa 19, Milano 20156, Italy
| | - Rafał Kurczab
- Department of Medicinal Chemistry, Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343 Krakow, Poland
| | - Giuseppe Romeo
- Dipartimento di Scienze del Farmaco, Università di Catania, viale A. Doria 6, Catania 95125, Italy
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Wang Q, Wang F, Yang X, Zhou X, Li X. Rh(III)- and Zn(II)-Catalyzed Synthesis of Quinazoline N-Oxides via C–H Amidation–Cyclization of Oximes. Org Lett 2016; 18:6144-6147. [DOI: 10.1021/acs.orglett.6b03155] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Qiang Wang
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fen Wang
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xifa Yang
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xukai Zhou
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingwei Li
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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26
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Singh A, Kumar S, Bajpai V, Kumar B. Simultaneous determination of pyrroquinazoline alkaloids and flavonoids in Adhatoda beddomei and Adhatoda vasica and their marketed herbal formulations using ultra-high-performance liquid chromatography coupled with triple quadrupole linear ion trap mass spectrometry. Biomed Chromatogr 2016; 31. [PMID: 27565948 DOI: 10.1002/bmc.3827] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 08/12/2016] [Accepted: 08/23/2016] [Indexed: 11/06/2022]
Abstract
Adhatoda beddomei and Adhatoda vasica leaf, known as 'Vasaka' and/or 'Vasa' in Ayurveda and 'Malabar nut' in English, is an official drug in the Indian Pharmacopoeia. The medicinal properties of these plants are due to the presence of pyrroquinazoline alkaloids. An UHPLC-ESI/MS/MS method in both positive and negative electrospray ionization in multiple-reaction-monitoring mode was developed and validated for the estimation of alkaloids and flavonoids in Adhatoda species and their marketed herbal formulations. Chromatographic separation was achieved on an Acquity UPLC® BEH C18 -column using a gradient elution with 0.1% formic acid in water and methanol. The developed method was validated as per International Conference on Harmonization guidelines and found to be accurate with overall recovery in the range 94.2-105.0% (RSD ≤ 1.71%), precise (RSD ≤ 3.44%) and linear (R2 ≥ 0.9992) over the concentration range of 0.5-1000 ng/mL. The total content of alkaloids and flavonoids were highest in the chloroform and aqueous fraction of A. vasica leaf, respectively. The results indicated that the developed method was simple, rapid, sensitive, selective and accurate for the estimation of multiple bioactive constituents in crude mixture, and therefore could make a contribution to the quality control of Adhatoda species and its derived herbal formulations.
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Affiliation(s)
- Awantika Singh
- Sophisticated Analytical Instrument Facility Division, CSIR-Central Drug Research Institute, Lucknow, India.,Academy of Scientific and Innovative Research, New Delhi, India
| | - Sunil Kumar
- Sophisticated Analytical Instrument Facility Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Vikas Bajpai
- Sophisticated Analytical Instrument Facility Division, CSIR-Central Drug Research Institute, Lucknow, India.,Academy of Scientific and Innovative Research, New Delhi, India
| | - Brijesh Kumar
- Sophisticated Analytical Instrument Facility Division, CSIR-Central Drug Research Institute, Lucknow, India.,Academy of Scientific and Innovative Research, New Delhi, India
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27
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Wang X, Jiao N. Rh- and Cu-Cocatalyzed Aerobic Oxidative Approach to Quinazolines via [4 + 2] C–H Annulation with Alkyl Azides. Org Lett 2016; 18:2150-3. [DOI: 10.1021/acs.orglett.6b00774] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoyang Wang
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Road 38, Beijing 100191, China
| | - Ning Jiao
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Road 38, Beijing 100191, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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28
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Hagar M, Soliman SM, Ibid F, El Ashry ESH. Synthesis, molecular structure and spectroscopic studies of some new quinazolin-4(3H)-one derivatives; an account on the N- versus S-Alkylation. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Liu H, Zhai T, Ding S, Hou Y, Zhang X, Feng L, Ma C. Direct and metal-free oxidative amination of sp3 C–H bonds for the construction of 2-hetarylquinazolin-4(3H)-ones. Org Chem Front 2016. [DOI: 10.1039/c6qo00231e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New method for synthesis of 2-hetarylquinazolin-4(3H)-ones from 2-aminobenzamides and (2-azaaryl)methanes under transition-metal free conditions, featuring a wide substrate scope with a broad range of functional group tolerance under mild conditions.
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Affiliation(s)
- Huanhuan Liu
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Tianran Zhai
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Shiteng Ding
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Yalei Hou
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Xiangyu Zhang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Lei Feng
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Chen Ma
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
- State Key Laboratory of Natural and Biomimetic Drugs
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30
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Amethysione and amethysamide, new metabolites from Streptosporangium amethystogenes BCC 27081. J Antibiot (Tokyo) 2015; 69:459-63. [PMID: 26669754 DOI: 10.1038/ja.2015.128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/30/2015] [Accepted: 11/12/2015] [Indexed: 11/08/2022]
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31
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Singh A, Kumar S, Reddy TJ, Rameshkumar KB, Kumar B. Screening of tricyclic quinazoline alkaloids in the alkaloidal fraction of Adhatoda beddomei and Adhatoda vasica leaves by high-performance liquid chromatography/electrospray ionization quadrupole time-of-flight tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:485-496. [PMID: 26160414 DOI: 10.1002/rcm.7126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 12/09/2014] [Accepted: 12/14/2014] [Indexed: 06/04/2023]
Abstract
RATIONALE Adhatoda beddomei and Adhatoda vasica are popular Ayurvedic medicinal plants in India, belonging to the family Acanthaceae. Tricyclic quinazoline alkaloids are found to be the most abundant in these plants which are responsible for broad-spectrum medicinal properties. This study aims to seek identification and characterization of those alkaloids based on their fragmentation patterns. METHODS A method was developed to elucidate the main fragmentation pathways of tricyclic quinazoline alkaloids in positive ion mode using high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (HPLC/ESI-QTOF-MS/MS). Chromatographic separation was carried on a Supelco Discovery HS C18 column (15 cm × 4.6 mm, 3 µm) with 0.1% formic acid aqueous solution and acetonitrile as a mobile phase. RESULTS In full scan mass spectra, protonated molecules were observed for all the quinazoline alkaloids. Ring cleavages of the tricyclic quinazoline moiety were observed in MS(2) spectra and the characteristic ions provide valuable structural information of these alkaloids. Fragmentation pathways and fragment ion structures were proposed in two groups of quinazoline alkaloids. CONCLUSIONS The established fragmentation patterns have been successfully used to identify 23 tricyclic quinazoline alkaloids in the alkaloidal fraction of A. beddomei and A. vasica.
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Affiliation(s)
- Awantika Singh
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, New Delhi-110025, India
| | - Sunil Kumar
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
| | - T Jagadeshwar Reddy
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, New Delhi-110025, India
| | - K B Rameshkumar
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute Palode, Thiruvananthapuram-695562, Kerala, India
| | - Brijesh Kumar
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, New Delhi-110025, India
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32
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Zhao Y, Liu W, Li Q, Yang Q, Chai W, Zeng M, Li R, Peng Y. Multiparameter-based bioassay of 2-(4-chlorophenyl)-4-(4-methoxyphenyl) quinazoline, a newly-synthesized quinazoline derivative, toward Microcystis aeruginosa HAB5100 (cyanobacteria). BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 94:376-81. [PMID: 25694253 DOI: 10.1007/s00128-015-1459-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 01/08/2015] [Indexed: 05/13/2023]
Abstract
Quinazoline derivatives have wide biological activities and therapeutic properties, implying their potential for development and application on a large scale. In the present study, 2-(4-chlorophenyl)-4-(4-methoxyphenyl) quinazoline (CMQ), was selected to examine its effect on unicellular cyanobacteria, Microcystis aeruginosa by evaluating growth, physiological and molecular responses. Growth was inhibited by CMQ, with a 96 h EC50 of 1.93 ± 0.19 mg L(-1). The up-regulated expression of prx was shown, reflecting that oxidative stress might be a toxic factor of CMQ. At higher concentrations of CMQ, the quantum yields of Y(II) and Y(NPQ) in photosystem II decreased seriously and Y(NO) increased sharply, and psbA gene encoding for D1 protein was over-expressed. These results demonstrated that high concentrations of CMQ had different inhibitory targets associated with photosystem electron transport and with sites beyond the electron transport chain, leading to severe toxicity.
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Affiliation(s)
- Yang Zhao
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, 330022, JiangXi, China
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Kshirsagar UA. Recent developments in the chemistry of quinazolinone alkaloids. Org Biomol Chem 2015; 13:9336-52. [DOI: 10.1039/c5ob01379h] [Citation(s) in RCA: 191] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This review focuses on the recent advances in the chemistry of quinazolinone alkaloids which covers the newly isolated quinazolinone alkaloids with their biological activities and the recently reported total syntheses of quinazolinone alkaloids from 2006 to 2015.
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Affiliation(s)
- U. A. Kshirsagar
- Department of Chemistry
- Savitribai Phule Pune University (Formerly: University of Pune)
- Pune 411007
- India
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34
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Tricyclic Quinazoline Alkaloids: Isolation, Synthesis, Chemical Modification, and Biological Activity. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-1086-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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35
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Omar MA, Conrad J, Beifuss U. Assembly of 4H-chromenes, imidazobenzothiazines and quinazolines via copper-catalyzed domino reactions using 2-halobenzyl tosylates as substrates. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.071] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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36
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Li Q, Huang Y, Chen T, Zhou Y, Xu Q, Yin SF, Han LB. Copper-catalyzed aerobic oxidative amination of sp3 C-H bonds: efficient synthesis of 2-hetarylquinazolin-4(3H)-ones. Org Lett 2014; 16:3672-5. [PMID: 24977337 DOI: 10.1021/ol501454j] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An efficient synthesis of 2-hetarylquinazolin-4(3H)-ones via copper-catalyzed direct aerobic oxidative amination of sp(3)C-H bonds has been developed. This tandem oxidation-amination-cyclization transformation represents a straightforward protocol to prepare 2-hetaryl-substituted quinazolinones from easily available 2-aminobenzamides and (2-azaaryl)methanes.
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Affiliation(s)
- Qiang Li
- State Key Laboratory of Chemo/Biosensing and Chemo metrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
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37
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Huang G, Roos D, Stadtmüller P, Decker M. A simple heterocyclic fusion reaction and its application for expeditious syntheses of rutaecarpine and its analogs. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.120] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Copper-catalyzed domino reaction between 1-(2-halophenyl)methanamines and amidines or imidates for the synthesis of 2-substituted quinazolines. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.066] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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39
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Sharma M, Mahar R, Shukla SK, Kant R, Chauhan PM. Potassium carbonate mediated unusual transformation of 2,3-dihydroquinazolinone via cascade reaction. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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40
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Peng J, Lin T, Wang W, Xin Z, Zhu T, Gu Q, Li D. Antiviral alkaloids produced by the mangrove-derived fungus Cladosporium sp. PJX-41. JOURNAL OF NATURAL PRODUCTS 2013; 76:1133-40. [PMID: 23758051 DOI: 10.1021/np400200k] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Six new indole alkaloids including five new glyantrypine derivatives (1, 2a, 2b, 3, 4) and a new pyrazinoquinazoline derivative (5), together with eight known alkaloids (6-13), were isolated from the culture of the mangrove-derived fungus Cladosporium sp. PJX-41. Their structures were elucidated primarily by spectroscopic and physical data. The absolute configurations of compounds 1-9 were established on the basis of CD, NOESY data, and single-crystal X-ray diffraction analysis. Compounds 2b, 5, 7-9, and 11 exhibited significant activities against influenza virus A (H1N1), with IC50 values of 82-89 μM.
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Affiliation(s)
- Jixing Peng
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
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Richers MT, Zhao C, Seidel D. Selective copper(II) acetate and potassium iodide catalyzed oxidation of aminals to dihydroquinazoline and quinazolinone alkaloids. Beilstein J Org Chem 2013; 9:1194-201. [PMID: 23843914 PMCID: PMC3701376 DOI: 10.3762/bjoc.9.135] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Accepted: 05/28/2013] [Indexed: 11/23/2022] Open
Abstract
Copper(II) acetate/acetic acid/O2 and potassium iodide/tert-butylhydroperoxide systems are shown to affect the selective oxidation of ring-fused aminals to dihydroquinazolines and quinazolinones, respectively. These methods enable the facile preparation of a number of quinazoline alkaloid natural products and their analogues.
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Affiliation(s)
- Matthew T Richers
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - Chenfei Zhao
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - Daniel Seidel
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
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42
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Panja SK, Saha S. Recyclable, magnetic ionic liquid bmim[FeCl4]-catalyzed, multicomponent, solvent-free, green synthesis of quinazolines. RSC Adv 2013. [DOI: 10.1039/c3ra42039f] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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43
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Panja SK, Dwivedi N, Saha S. I2-Catalyzed three-component protocol for the synthesis of quinazolines. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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44
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Yin P, Liu N, Deng YX, Chen Y, Deng Y, He L. Synthesis of 2,4-Diaminoquinazolines and Tricyclic Quinazolines by Cascade Reductive Cyclization of Methyl N-Cyano-2-nitrobenzimidates. J Org Chem 2012; 77:2649-58. [PMID: 22283399 DOI: 10.1021/jo2023697] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ping Yin
- Key Laboratory of Drug-Targeting
and Drug-Delivery Systems of the Ministry of Education, Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, P. R.
China
| | - Nan Liu
- Key Laboratory of Drug-Targeting
and Drug-Delivery Systems of the Ministry of Education, Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, P. R.
China
| | - Yu-Xing Deng
- Key Laboratory of Drug-Targeting
and Drug-Delivery Systems of the Ministry of Education, Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, P. R.
China
| | - Yue Chen
- Department of Nuclear
Medicine
Affiliated Hospital, Luzhou Medical College, No. 25 Taiping Street, Luzhou, Sichuan, 646000, P. R. China
| | - Yong Deng
- Key Laboratory of Drug-Targeting
and Drug-Delivery Systems of the Ministry of Education, Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, P. R.
China
| | - Ling He
- Key Laboratory of Drug-Targeting
and Drug-Delivery Systems of the Ministry of Education, Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, P. R.
China
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45
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Gigant N, Claveau E, Bouyssou P, Gillaizeau I. Diversity-oriented synthesis of polycyclic diazinic scaffolds. Org Lett 2012; 14:844-7. [PMID: 22260530 DOI: 10.1021/ol203364b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An efficient and versatile synthesis of a polycyclic diazinic system starting from oxazine has been developed using a two-step Michael/retro Michael and cyclization sequence. The substrates were synthesized with good to high yields giving rapid access to molecular diversity.
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Affiliation(s)
- Nicolas Gigant
- Institut de Chimie Organique et Analytique, UMR 7311 CNRS, rue de Chartres, Université d'Orléans, F-45067 Orléans Cedex 2, France
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46
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Assessing environmental risks for established invasive weeds: Dalmatian (Linaria dalmatica) and yellow (L. vulgaris) toadflax in North America. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2011; 8:2828-53. [PMID: 21845161 PMCID: PMC3155332 DOI: 10.3390/ijerph8072828] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 06/19/2011] [Accepted: 06/29/2011] [Indexed: 11/16/2022]
Abstract
Environmental risk assessments characterizing potential environmental impacts of exotic weeds are more abundant and comprehensive for potential or new invaders than for widespread and well-established species such as Dalmatian (Linaria dalmatica [L.] Mill.) and yellow (L. vulgaris Mill.) toadflax. Specific effects evaluated in our assessment of environmental risks posed by yellow and Dalmatian toadflax included competitive displacement of other plant species, reservoirs of plant disease, animal and insect use, animal toxicity, human toxicity and allergenicity, erosion, and wildfire. Effect and exposure uncertainties for potential impacts of toadflax on human and ecological receptors were rated. Using publicly available information we were able to characterize ecological and human health impacts associated with toadflax, and to identify specific data gaps contributing to a high uncertainty of risk. Evidence supporting perceived negative environmental impacts of invasive toadflax was scarce.
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47
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Gao X, Chooi YH, Ames BD, Wang P, Walsh CT, Tang Y. Fungal indole alkaloid biosynthesis: genetic and biochemical investigation of the tryptoquialanine pathway in Penicillium aethiopicum. J Am Chem Soc 2011; 133:2729-41. [PMID: 21299212 PMCID: PMC3045477 DOI: 10.1021/ja1101085] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Tremorgenic mycotoxins are a group of indole alkaloids which include the quinazoline-containing tryptoquivaline (2) that are capable of eliciting intermittent or sustained tremors in vertebrate animals. The biosynthesis of this group of bioactive compounds, which are characterized by an acetylated quinazoline ring connected to a 6-5-5 imidazoindolone ring system via a 5-membered spirolactone, has remained uncharacterized. Here, we report the identification of a gene cluster (tqa) from P. aethiopicum that is involved in the biosynthesis of tryptoquialanine (1), which is structurally similar to 2. The pathway has been confirmed to go through an intermediate common to the fumiquinazoline pathway, fumiquinazoline F, which originates from a fungal trimodular nonribosomal peptide synthetase (NRPS). By systematically inactivating every biosynthetic gene in the cluster, followed by isolation and characterization of the intermediates, we were able to establish the biosynthetic sequence of the pathway. An unusual oxidative opening of the pyrazinone ring by an FAD-dependent berberine bridge enzyme-like oxidoreductase has been proposed based on genetic knockout studies. Notably, a 2-aminoisobutyric acid (AIB)-utilizing NRPS module has been identified and reconstituted in vitro, along with two putative enzymes of unknown functions that are involved in the synthesis of the unnatural amino acid by genetic analysis. This work provides new genetic and biochemical insights into the biosynthesis of this group of fungal alkaloids, including the tremorgens related to 2.
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Affiliation(s)
- Xue Gao
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
| | - Yit-Heng Chooi
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
| | - Brian D. Ames
- Department of Biological Chemistry & Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115
| | - Peng Wang
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
| | - Christopher T. Walsh
- Department of Biological Chemistry & Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115
| | - Yi Tang
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
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48
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Ames BD, Liu X, Walsh CT. Enzymatic processing of fumiquinazoline F: a tandem oxidative-acylation strategy for the generation of multicyclic scaffolds in fungal indole alkaloid biosynthesis. Biochemistry 2010; 49:8564-76. [PMID: 20804163 PMCID: PMC3006076 DOI: 10.1021/bi1012029] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Aspergillus fumigatus Af293 is a known producer of quinazoline natural products, including the antitumor fumiquinazolines, of which the simplest member is fumiquinazoline F (FQF) with a 6-6-6 tricyclic core derived from anthranilic acid, tryptophan, and alanine. FQF is the proposed biological precursor to fumiquinazoline A (FQA) in which the pendant indole side chain has been modified via oxidative coupling of an additional molecule of alanine, yielding a fused 6-5-5 imidazoindolone. We recently identified fungal anthranilate-activating nonribosomal peptide synthetase (NRPS) domains through bioinformatics approaches. One domain previously identified is part of the trimodular NRPS Af12080, which we predict is responsible for FQF formation. We now show that two adjacent A. fumigatus ORFs, a monomodular NRPS Af12050 and a flavoprotein Af12060, are necessary and sufficient to convert FQF to FQA. Af12060 oxidizes the 2',3'-double bond of the indole side chain of FQF, and the three-domain NRPS Af12050 activates l-Ala as the adenylate, installs it as the pantetheinyl thioester on its carrier protein domain, and acylates the oxidized indole for subsequent intramolecular cyclization to create the 6-5-5 imidazolindolone of FQA. This work provides experimental validation of the fumiquinazoline biosynthetic cluster of A. fumigatus Af293 and describes an oxidative annulation biosynthetic strategy likely shared among several classes of polycyclic fungal alkaloids.
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Affiliation(s)
- Brian D. Ames
- Department of Biological Chemistry & Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115
| | | | - Christopher T. Walsh
- Department of Biological Chemistry & Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115
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49
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Ames BD, Walsh CT. Anthranilate-activating modules from fungal nonribosomal peptide assembly lines. Biochemistry 2010; 49:3351-65. [PMID: 20225828 PMCID: PMC2854178 DOI: 10.1021/bi100198y] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Fungal natural products containing benzodiazepinone- and quinazolinone-fused ring systems can be assembled by nonribosomal peptide synthetases (NRPS) using the conformationally restricted beta-amino acid anthranilate as one of the key building blocks. We validated that the first module of the acetylaszonalenin synthetase of Neosartorya fischeri NRRL 181 activates anthranilate to anthranilyl-AMP. With this as a starting point, we then used bioinformatic predictions about fungal adenylation domain selectivities to identify and confirm an anthranilate-activating module in the fumiquinazoline A producer Aspergillus fumigatus Af293 as well as a second anthranilate-activating NRPS in N. fischeri. This establishes an anthranilate adenylation domain code for fungal NRPS and should facilitate detection and cloning of gene clusters for benzodiazepine- and quinazoline-containing polycyclic alkaloids with a wide range of biological activities.
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Affiliation(s)
- Brian D. Ames
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115
| | - Christopher T. Walsh
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115
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50
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A comprehensive view on 4-methyl-2-quinazolinamine, a new microbial alkaloid from Streptomyces of TCM plant origin. J Antibiot (Tokyo) 2009; 62:439-44. [PMID: 19662085 DOI: 10.1038/ja.2009.68] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In the course of our chemical and biological screening program for yet unidentified microbial metabolites, we selected plants of Traditional Chinese Medicine (TCM) as habitats for talented Streptomycetes producer strains for the first time. Liquid pure cultures of strain Streptomyces sp. GS DV232 were found to contain 4-methyl-2-quinazolinamine (1), a potent alkaloid yet unknown from nature. In this study, we investigated the chemical and crystal structure of 1, as well as its antiproliferative bioactivity, and addressed the unusual biosynthesis using feeding experiments.
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