201
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Cu(II)-N-benzyl-amino-1H-tetrazole complex immobilized on magnetic chitosan as a highly effective nanocatalyst for C-N coupling reactions. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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202
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Ankade SB, Samal PP, Soni V, Gonnade RG, Krishnamurty S, Punji B. Ni(II)-Catalyzed Intramolecular C–H/C–H Oxidative Coupling: An Efficient Route to Functionalized Cycloindolones and Indenoindolones. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03314] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shidheshwar B. Ankade
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pragnya Paramita Samal
- Physical and Materials Chemistry Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vineeta Soni
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rajesh G. Gonnade
- Centre for Material Characterization, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
| | - Sailaja Krishnamurty
- Physical and Materials Chemistry Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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203
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Hu Y, Hou H, Yu L, Zhou S, Wu X, Sun W, Ke F. Electro-oxidative cyclization: access to quinazolinones via K 2S 2O 8 without transition metal catalyst and base. RSC Adv 2021; 11:31650-31655. [PMID: 35496883 PMCID: PMC9041726 DOI: 10.1039/d1ra05092c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/08/2021] [Indexed: 01/18/2023] Open
Abstract
A K2S2O8-promoted oxidative tandem cyclization of primary alcohols with 2-aminobenzamides to synthesize quinazolinones was successfully achieved under undivided electrolytic conditions without a transition metal and base. The key feature of this protocol is the utilization of K2S2O8 as an inexpensive and easy-to-handle radical surrogate that can effectively promote the reaction via a simple procedure, leading to the formation of nitrogen heterocycles via direct oxidative cyclization at room temperature in a one-pot procedure under constant current. Owing to the use of continuous-flow electrochemical setups, this green, mild and practical electrosynthesis features high efficiency and excellent functional group tolerance and is easy to scale up. A K2S2O8-promoted oxidative tandem cyclization of primary alcohols with 2-aminobenzamides to synthesize quinazolinones was successfully achieved under undivided electrolytic conditions without a transition metal and base.![]()
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Affiliation(s)
- Yongzhi Hu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Huiqing Hou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Ling Yu
- College of Chemistry and Chemical Engineering, Xingtai University Xingtai 054001 P. R. China
| | - Sunying Zhou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Xianghua Wu
- School of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650092 P. R. China
| | - Weiming Sun
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Fang Ke
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
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204
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Deng Y, Dong Z, Gao F, Guo Y, Sun M, Li Y, Wang Y, Chen Q, Wang K, Yan W. The Regiocontrollable Enantioselective Synthesis of Chiral Trifluoromethyl-Containing Spiro-Pyrrolidine-Pyrazolone Compounds via Amino-Regulated 1,3-Proton Migration Reaction. J Org Chem 2021; 86:13011-13024. [PMID: 34494838 DOI: 10.1021/acs.joc.1c01705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An amino-controlled regiodivergent asymmetric synthesis of CF3-containing spiro-pyrrolidine-pyrazolone compounds is described. With alkaloid-derived squaramide as catalyst, the 1,3-dipolar cycloaddition of α,β-unsaturated pyrazolone with diethyl 2-((2,2,2-trifluoroethyl)imino) malonate offered adducts in excellent yields, dr, and ee. While the cyclohexanediamine-derived squaramide was employed, the reaction afforded a series of structure isomers through a switched umpolung reaction.
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Affiliation(s)
- Yabo Deng
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhenghao Dong
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Fengyun Gao
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yifei Guo
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Mengmeng Sun
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yongzhen Li
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yalan Wang
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qushuo Chen
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Kairong Wang
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenjin Yan
- Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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205
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Kamlar M, Reiberger R, Nigríni M, Císařová I, Veselý J. Enantioselective PCCP Brønsted acid-catalyzed aminalization of aldehydes. Beilstein J Org Chem 2021; 17:2433-2440. [PMID: 34621405 PMCID: PMC8450961 DOI: 10.3762/bjoc.17.160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 09/02/2021] [Indexed: 01/01/2023] Open
Abstract
Here we present an enantioselective aminalization of aldehydes catalyzed by Brønsted acids based on pentacarboxycyclopentadienes (PCCPs). The cyclization reaction using readily available anthranilamides as building blocks provides access to valuable 2,3-dihydroquinazolinones containing one stereogenic carbon center with good enantioselectivity (ee up to 80%) and excellent yields (up to 97%).
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Affiliation(s)
- Martin Kamlar
- Department of Organic Chemistry Charles Univerzity, Hlavova 2030/8, Prague 2, 12800, Czech Republic
| | - Robert Reiberger
- Department of Organic Chemistry Charles Univerzity, Hlavova 2030/8, Prague 2, 12800, Czech Republic
| | - Martin Nigríni
- Department of Organic Chemistry Charles Univerzity, Hlavova 2030/8, Prague 2, 12800, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Charles Univerzity, Hlavova 2030/8, Prague 2, 12800, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry Charles Univerzity, Hlavova 2030/8, Prague 2, 12800, Czech Republic
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206
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Singh R, Bhatia H, Prakash P, Debroye E, Dey S, Dehaen W. Tandem Nenitzescu Reaction/Nucleophilic Aromatic Substitution to Form Novel Pyrido Fused Indole Frameworks. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Rashmi Singh
- Department of Chemistry Indian Institute of Technology (Indian School of Mines), Dhanbad Dhanbad 826004 India
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Harshita Bhatia
- Molecular Imaging and Photonics Department of Chemistry KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Prabhat Prakash
- Materials Engineering Indian Institute of Technology Gandhinagar Palaj, Gandhinagar 382355 Gujarat India
| | - Elke Debroye
- Molecular Imaging and Photonics Department of Chemistry KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Swapan Dey
- Department of Chemistry Indian Institute of Technology (Indian School of Mines), Dhanbad Dhanbad 826004 India
| | - Wim Dehaen
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
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207
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Affiliation(s)
- Ya‐Feng Si
- School of Biology Zhengzhou University Zhengzhou 450001 People's Republic of China
- Green Catalysis Center, College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Qi‐Yan Lv
- School of Biology Zhengzhou University Zhengzhou 450001 People's Republic of China
- Green Catalysis Center, College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Bing Yu
- Green Catalysis Center, College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
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208
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Greiner LC, Inuki S, Arichi N, Oishi S, Suzuki R, Iwai T, Sawamura M, Hashmi ASK, Ohno H. Access to Indole-Fused Benzannulated Medium-Sized Rings through a Gold(I)-Catalyzed Cascade Cyclization of Azido-Alkynes. Chemistry 2021; 27:12992-12997. [PMID: 34110644 DOI: 10.1002/chem.202101824] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Indexed: 02/05/2023]
Abstract
Because benzannulated and indole-fused medium-sized rings are found in many bioactive compounds, combining these fragments might lead to unexplored areas of biologically relevant and uncovered chemical space. Herein is shown that α-imino gold carbene chemistry can play an important role in solving the difficulty in the formation of medium-sized rings. Namely, phenylene-tethered azido-alkynes undergo arylative cyclization through the formation of a gold carbene intermediate to afford benzannulated indole-fused medium-sized tetracycles. The reactions allow a range of different aryl substitution patterns and efficient access to these otherwise difficult-to-obtain medium-sized rings. This study also demonstrates the feasibility of the semihollow-shaped C-dtbm ligand for the construction of a nine-membered ring.
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Affiliation(s)
- Luca C Greiner
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Norihito Arichi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan.,Current Address: Department of Medicinal Chemistry, Kyoto Pharmaceutical University, Yashima-ku, Kyoto, 607-8412, Japan
| | - Rikito Suzuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Tomohiro Iwai
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.,Current Address: Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, 153-8902, Japan
| | - Masaya Sawamura
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
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209
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Chakraborty G, Mondal R, Guin AK, Paul ND. Nickel catalyzed sustainable synthesis of benzazoles and purines via acceptorless dehydrogenative coupling and borrowing hydrogen approach. Org Biomol Chem 2021; 19:7217-7233. [PMID: 34612344 DOI: 10.1039/d1ob01154e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Herein we report nickel-catalyzed sustainable synthesis of a few chosen five-membered fused nitrogen heterocycles such as benzimidazole, purine, benzothiazole, and benzoxazole via acceptorless dehydrogenative functionalization of alcohols. Using a bench stable, easy to prepare, and inexpensive Ni(ii)-catalyst, [Ni(MeTAA)] (1a), featuring a tetraaza macrocyclic ligand (tetramethyltetraaza[14]annulene (MeTAA)), a wide variety of polysubstituted benzimidazole, purine, benzothiazole, and benzoxazole derivatives were prepared via dehydrogenative coupling of alcohols with 1,2-diaminobenzene, 4,5-diaminopyrimidine, 2-aminothiphenol, and 2-aminophenol, respectively. A wide array of benzimidazoles were also prepared via a borrowing hydrogen approach involving alcohols as hydrogen donors and 2-nitroanilines as hydrogen acceptors. A few control experiments were performed to understand the reaction mechanism.
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Affiliation(s)
- Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India.
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210
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Singh S, Nerella S, Pabbaraja S, Mehta G. Stitching Ynones with Nitromethanes: Domino Synthesis of Functionally Enriched Benzofurans and Benzothiophenes. J Org Chem 2021; 86:12093-12106. [PMID: 34414759 DOI: 10.1021/acs.joc.1c01104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A convenient one-pot benzannulation of regioisomeric 2- or 3-substituted furan and thiophene ynones with a range of nitromethanes has been discovered to directly access densely and diversely functionalized benzofurans and benzothiophenes. In this protocol, the nitro group in nitromethanes functions as recursive carbanion activator to setup tandem Michael addition-6π-electrocyclization, and its eventual sacrificial elimination facilitates aromatization and overall benzannulation. This benzannulation was also explored with furan/thiophene based o-halo ynones wherein a Michael addition-SNAr process operates and nitromethanes leave their imprint to deliver nitro substituted benzo-furans and -thiophenes.
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Affiliation(s)
- Shweta Singh
- Department of Organic Synthesis and Process Chemistry, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India.,School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Sharanya Nerella
- Department of Organic Synthesis and Process Chemistry, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process Chemistry, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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211
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Nomula V, Rao SN. KO tBu-BF 3.OEt 2 mediated synthesis of quinazolin-4( 3H)-ones from 2-substituted amides with nitriles and aldehydes. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1928218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Vishnuvardhan Nomula
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of scientific and innovative research(AcSIR), Ghaziabad, India
| | - Sadu Nageswara Rao
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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212
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Congenericity of Claimed Compounds in Patent Applications. Molecules 2021; 26:molecules26175253. [PMID: 34500686 PMCID: PMC8433967 DOI: 10.3390/molecules26175253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 12/04/2022] Open
Abstract
A method is presented to analyze quantitatively the degree of congenericity of claimed compounds in patent applications. The approach successfully differentiates patents exemplified with highly congeneric compounds of a structurally compact and well defined chemical series from patents containing a more diverse set of compounds around a more vaguely described patent claim. An application to 750 common patents available in SureChEMBL, SureChEMBLccs and ChEMBL is presented and the congenericity of patent compounds in those different sources discussed.
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213
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Zhang XL, Qiu GQ, Chen JM, Sheng SR. Synthesis of 6,7-dihydro-4 H-[1,2,3]triazolo[5,1- c][1,4]oxazines via tandem reactions of β-iodoazides with propargyl alcohols. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1968905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xiao-Lan Zhang
- College of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao, China
| | - Guo-Qiao Qiu
- Department of Visual Communication, Shanghai Institute of Technology, Shanghai, China
| | - Jun-Min Chen
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Jiangxi Normal University, Nanchang, China
| | - Shou-Ri Sheng
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Jiangxi Normal University, Nanchang, China
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214
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Jismy B, El Qami A, Jacquemin J, Guillot R, Tikad A, Abarbri M. Efficient Synthesis of
tert
‐Butyl 2,4‐Dialkynylated and 2‐Alkynylated‐4‐Arylated‐1
H
‐Imidazole‐1‐Carboxylate
via
Regioselective Sonogashira Cross‐Coupling Reaction. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Badr Jismy
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E) EA 6299 Université de Tours Faculté des Sciences et Techniques Avenue Monge Faculté des Sciences, Parc de Grandmont 37200 Tours France
| | - Abdelkarim El Qami
- Laboratoire de Chimie Physique et de Chimie Bioorganique URAC 22 Département de Chimie Université Hassan II de Casablanca Faculté des Sciences et Techniques de Mohammedia B.P. 146 28800 Mohammedia Morocco
| | - Johan Jacquemin
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E) EA 6299 Université de Tours Faculté des Sciences et Techniques Avenue Monge Faculté des Sciences, Parc de Grandmont 37200 Tours France
| | - Regis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR CNRS 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Abdellatif Tikad
- Laboratoire de Chimie Moléculaire et Substances Naturelles Département de Chimie Faculté des Sciences Université Moulay Ismail B.P. 11201, Zitoune 50050 Meknès Morocco
| | - Mohamed Abarbri
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E) EA 6299 Université de Tours Faculté des Sciences et Techniques Avenue Monge Faculté des Sciences, Parc de Grandmont 37200 Tours France
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215
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Kisan Rasal N, Bhaskar Sonawane R, Vijay Jagtap S. Synthesis, Characterization, and Biological Study of 3-Trifluoromethylpyrazole Tethered Chalcone-Pyrrole and Pyrazoline-Pyrrole Derivatives. Chem Biodivers 2021; 18:e2100504. [PMID: 34409724 DOI: 10.1002/cbdv.202100504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 08/18/2021] [Indexed: 11/07/2022]
Abstract
The present study illustrates the design and synthesis of new series of 3-trifluoromethylpyrazole tethered chalcone-pyrrole and pyrazoline-pyrrole derivatives. All compounds were further screened for in vitro cytostatic activities on full NCI 60 cancer cell lines at National Cancer Institute, USA. Compounds (2E)-3-(1H-pyrrol-2-yl)-1-{4-[3-(trifluoromethyl)-1H-pyrazol-1-yl]phenyl}prop-2-en-1-one (5a) and (2E)-1-{3-methyl-4-[3-(trifluoromethyl)-1H-pyrazol-1-yl]phenyl}-3-(1H-pyrrol-2-yl)prop-2-en-1-one (5c) displayed significant antiproliferative activity (Growth Percentage: -77.10 and -92.13, respectively at 10 μM concentration) against the UO-31 cell lines from renal cancer and were further selected for assay at 10-fold dilutions of five different concentrations (10-4 to 10-8 M). Both compounds 5a and 5c exhibited promising antiproliferative activity (GI50 : 1.36 to 0.27 μM) against leukemia cancer cell lines HL-60 and RPMI-8226, colon cancer cell lines KM-12; breast cancer cell lines BT-549. Moreover, both compounds 5a and 5c were found to be non-cytotoxic (LC50 >100) against HL-60, RPMI-8226, and KM-12 cell lines. Remarkably, GI50 values of compounds 5a and 5c were identified as more promising than sunitinib against most cancer cell lines. In silico study of compounds 5a and 5c exemplified the desired ADME properties for drug-likeness as well as tighter interactions with VEGFR-2. Hence, compounds 5a and 5c would be good cytotoxic agents after further clinical study.
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Affiliation(s)
- Nishant Kisan Rasal
- Department of Chemistry, Baburaoji Gholap College, Sangvi, Pune, 411 027, India, (Affiliated to Savitribai Phule Pune University
| | - Rahul Bhaskar Sonawane
- Department of Chemistry, Baburaoji Gholap College, Sangvi, Pune, 411 027, India, (Affiliated to Savitribai Phule Pune University
| | - Sangeeta Vijay Jagtap
- Department of Chemistry, Baburaoji Gholap College, Sangvi, Pune, 411 027, India, (Affiliated to Savitribai Phule Pune University
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216
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Lin Y, Jin J, Wang C, Wan JP, Liu Y. Electrochemical C-H Halogenations of Enaminones and Electron-Rich Arenes with Sodium Halide (NaX) as Halogen Source for the Synthesis of 3-Halochromones and Haloarenes. J Org Chem 2021; 86:12378-12385. [PMID: 34392684 DOI: 10.1021/acs.joc.1c01347] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Without employing an external oxidant, the simple synthesis of 3-halochromones and various halogenated electron-rich arenes has been realized with electrode oxidation by employing the simplest sodium halide (NaX, X = Cl, Br, I) as halogen source. This electrochemical method is advantageous for the simple and mild room temperature operation, environmental friendliness as well as broad substrate scope in both C-H bond donor and halogen source components.
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Affiliation(s)
- Yan Lin
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang330022, People's Republic of China
| | - Jun Jin
- BioDuro-Sundia, 233 North FuTe Road, Shanghai200131, People's Republic of China
| | - Chaoli Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang330022, People's Republic of China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang330022, People's Republic of China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang330022, People's Republic of China
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217
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Nagaraju S, Sathish K, Kashinath D. Applications of 3,5‐Dialkyl‐4‐nitroisoxazoles and Their Derivatives in Organic Synthesis
#. ChemistrySelect 2021. [DOI: 10.1002/slct.202101719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sakkani Nagaraju
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Kota Sathish
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Dhurke Kashinath
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
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218
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Yue Y, Chao J, Wang Z, Yang Y, Ye Y, Sun C, Guo X, Liu J. Electrooxidative double C-H/C-H coupling of phenols with 3-phenylbenzothiophenes: facile access to benzothiophene derivatives. Org Biomol Chem 2021; 19:7156-7160. [PMID: 34378603 DOI: 10.1039/d1ob01208h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient electrooxidative double C-H/C-H coupling of phenols with 3-phenylbenzothiophene has been developed under external oxidant- and catalyst-free conditions. This strategy could enable the highly tunable access to benzothiophene derivatives and exhibited broad substrate generality under mild conditions. The reaction is likely to proceed via the cross-coupling of the p-methoxylphenol radical and the 3-phenylbenzothiophene radical cation.
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Affiliation(s)
- Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China.
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219
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Lee CY, Kwon YI, Jang HS, Lee S, Chun YL, Jung J, Kim S. Organocatalytic Enantioselective [4+3]‐Cycloadditions of Azaoxyallyl Cations with 2‐Aminophenyl Enones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Chang Yoon Lee
- Department of Chemistry Kyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
| | - Yong Il Kwon
- Department of Chemistry Kyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
| | - Hyun Sun Jang
- Department of Chemistry Kyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
| | - Sumin Lee
- Department of Anatomy and Neurobiology, College of Medicine Kyung Hee University 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Yoo Lim Chun
- Department of Anatomy and Neurobiology, College of Medicine Kyung Hee University 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Junyang Jung
- Department of Anatomy and Neurobiology, College of Medicine Kyung Hee University 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Sung‐Gon Kim
- Department of Chemistry Kyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
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220
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Kutyashev IB, Ulitko MV, Barkov AY, Zimnitskiy NS, Korotaev VY, Sosnovskikh VY. Regio- and Stereoselective 1,3-dipolar Cycloaddition of Azomethine Ylides Based on Isatins and (thia)proline to 3-nitro-2-(trifluoro(trichloro)methyl)-2H-chromenes: Synthesis and Cytotoxic Activity of 6-(trihalomethyl)-spiro[chromeno(thia)pyrrolizidine-11,3'-indolin]-2'-ones. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02979-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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221
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Sujeevan Reddy G, Sandeep Kumar J, Thirupataiah B, Amirul Hossain K, Babu Nallapati S, Bhat Giliyaru V, Chandrashekhar Hariharapura R, Gautham Shenoy G, Pal M. Propargylamines in Pd/Cu-catalyzed tandem coupling-cyclization-N-deprotection in a single pot: Construction of N-unsubstituted vs N-sulfonyl indole ring. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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222
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Yamini, Sharma S, Das P. Rhodium catalyzed 2‐alkyl‐benzimidazoles synthesis from benzene‐1,2‐diamines and tertiary alkylamines as alkylating agents. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yamini
- Chemical Technology Division CSIR‐Institute of Himalayan Bioresource Technology (IHBT) Palampur Himachal Pradesh 176061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
| | - Saurabh Sharma
- Chemical Technology Division CSIR‐Institute of Himalayan Bioresource Technology (IHBT) Palampur Himachal Pradesh 176061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
| | - Pralay Das
- Chemical Technology Division CSIR‐Institute of Himalayan Bioresource Technology (IHBT) Palampur Himachal Pradesh 176061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
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223
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Absalan Y, Shad NN, Gholizadeh M, Mahmoudi G, Sarvestani HS, Strashnov P, Ghandi K, Kovalchukova O. Schiff bases-titanium (III) & (IV) complex compounds: Novel photocatalysts in Buchwald-Hartwig C–N cross-coupling reaction. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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224
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Chua LS, Segaran A, Wong HJ. LC-PDA-MS/MS-Based Characterization of Key Phytochemicals in Eurycoma Longifolia Roots. J Chromatogr Sci 2021; 59:659-669. [PMID: 33876232 DOI: 10.1093/chromsci/bmab041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Indexed: 11/14/2022]
Abstract
The objective of the study was to fractionate the crude extract of Eurycoma longifolia (E. longifolia) roots and identify the intense peaks using HPLC-PDA-MS/MS, UPLC-MS/MS and H-NMR. Column chromatography was used to fractionate the crude extract into individual fractions using six solvent systems ranged from ethyl acetate, methanol and water in increasing polarity. Two fractions with nearly pure and intense peaks were selected for compound identification. Chromenone (coumarin) and chromone derivatives were putatively identified, besides several previously reported quassinoid glycosides (eurycomanone derived glycoside, 2,3-dehydro-4α-hydroxylongilactone glucoside, eurycomanol glycoside and eurycomanol trimer) in the fraction 11 of 100% methanol. A newly reported compound, namely hydroxyl glyyunanprosapogenin D (838 g/mol) was proposed to be the compound detected in the fraction 11 of 50% ethyl acetate and 50% methanol. This is also the first study to report the identification of chromenones and chromones in E. longifolia extract.
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Affiliation(s)
- Lee Suan Chua
- Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Johor, Malaysia.,Department of Bioprocess and Polymer Engineering, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Johor, Malaysia
| | - Abirame Segaran
- Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Johor, Malaysia.,Department of Bioprocess and Polymer Engineering, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Johor, Malaysia
| | - Hoi Jin Wong
- Biotropics Malaysia Berhad, Lot 21, Jalan U1/19, Section U1, Hicom Glenmarie Industrial Park, 40150 Shah Alam, Selangor
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225
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Niu X, Yang L. Manganese(III) Acetate Catalyzed Aerobic Dehydrogenation of Tertiary Indolines, Tetrahydroquinolines and an
N
‐Unsubstituted Indoline. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaokang Niu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Collaborative Innovation Center for the Manufacture of Fluorine and Silicone Fine Chemicals and Materials Hangzhou Normal University 311121 Hangzhou People's Republic of China
| | - Lei Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Collaborative Innovation Center for the Manufacture of Fluorine and Silicone Fine Chemicals and Materials Hangzhou Normal University 311121 Hangzhou People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Chinese Academy of Sciences 730000 Lanzhou People's Republic of China
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226
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Zheng SL, Zou YX, Wen Z, Lin JF, Gu LH, Chen L. Y(OTf) 3-catalyzed phosphorylation of 2H-chromene hemiacetals with P(O)-H compounds to 2-phosphorylated 2H-chromenes. Org Biomol Chem 2021; 19:6812-6816. [PMID: 34297020 DOI: 10.1039/d1ob01221e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A facile synthesis of 2-phosphorylated 2H-chromenes has been accomplished herein via a Y(OTf)3-catalyzed dehydrative coupling of 2H-chromene hemiacetals with P(O)-H compounds. This protocol features low catalyst loading, mild reaction conditions, broad substrate scope and easy elaboration of the products.
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Affiliation(s)
- Shi-Lu Zheng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.
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227
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Murugesan T, Sivarajan C, Jayakumari CM, Singh RK, Vennapusa SR, Kaliyamoorthy A. Palladium-Catalyzed Direct C2-Biarylation of Indoles. J Org Chem 2021; 86:10838-10851. [PMID: 34291945 DOI: 10.1021/acs.joc.1c01123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Biaryl and indole units are important structural motifs in several bioactive molecules and functional materials. We have accomplished straightforward access to C2-biarylated indole derivatives through palladium-catalyzed C-H activation strategy with a broad range of substrate scope in yields of 24 to 92%. Besides, the UV/visible absorption and fluorescence properties of the ensuing products were explored. The calculated higher dihedral angle and rotational barrier values for the selected C2-biarylated indoles show that these compounds may display atropisomerism at room temperature.
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Affiliation(s)
- Tamilarasu Murugesan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Chinraj Sivarajan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Chithra Mohan Jayakumari
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Rajat Kumar Singh
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Sivaranjana Reddy Vennapusa
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Alagiri Kaliyamoorthy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
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228
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Vézina-Dawod S, Perreault M, Guay LD, Gerber N, Gobeil S, Biron E. Synthesis and biological evaluation of novel 1,4-benzodiazepin-3-one derivatives as potential antitumor agents against prostate cancer. Bioorg Med Chem 2021; 45:116314. [PMID: 34333393 DOI: 10.1016/j.bmc.2021.116314] [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: 04/13/2021] [Revised: 07/08/2021] [Accepted: 07/15/2021] [Indexed: 12/24/2022]
Abstract
A novel tumor suppressing agent was discovered against PC-3 prostate cancer cells from the screening of a 1,4-benzodiazepin-3-one library. In this study, 96 highly diversified 2,4,5-trisubstituted 1,4-benzodiazepin-3-one derivatives were prepared by a two-step approach using sequential Ugi multicomponent reaction and simultaneous deprotection and cyclization to afford pure compounds bearing a wide variety of substituents. The most promising compound showed a potent and selective antiproliferative activity against prostate cancer cell line PC-3 (GI50 = 10.2 µM), but had no effect on LNCAP, LAPC4 and DU145 cell lines. The compound was initially prepared as a mixture of two diastereomers and after their separation by HPLC, similar antiproliferative activities against PC-3 cells were observed for both diastereomers (2S,5S: GI50 = 10.8 µM and 2S,5R: GI50 = 7.0 µM). Additionally, both diastereomers showed comparable stability profiles after incubation with human liver microsomes. Finally, in vivo evaluation of the hit compound with the chick chorioallantoic membrane xenograft assay revealed a good toxicity profile and significant antitumor activity after intravenous injection.
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Affiliation(s)
- Simon Vézina-Dawod
- Faculté de pharmacie, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche du CHU de Québec-Université Laval, 2705 boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Martin Perreault
- Département de médecine moléculaire, Faculté de médecine, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche du CHU de Québec-Université Laval, 2705 boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Louis-David Guay
- Faculté de pharmacie, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche du CHU de Québec-Université Laval, 2705 boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Nicolas Gerber
- Faculté de pharmacie, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche du CHU de Québec-Université Laval, 2705 boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Stéphane Gobeil
- Département de médecine moléculaire, Faculté de médecine, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche du CHU de Québec-Université Laval, 2705 boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Eric Biron
- Faculté de pharmacie, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche du CHU de Québec-Université Laval, 2705 boulevard Laurier, Québec, QC G1V 4G2, Canada.
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229
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Mondal A, Sharma R, Pal D, Srimani D. Recent Progress in the Synthesis of Heterocycles through Base Metal‐Catalyzed Acceptorless Dehydrogenative and Borrowing Hydrogen Approach. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100517] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Avijit Mondal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Rahul Sharma
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Debjyoti Pal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Dipankar Srimani
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
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230
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Leyton A, Rabanal‐León WA, Murillo‐López JA, Belmar J, Concepción O, Torre AF, Muñiz FM, Báez R, Jiménez CA. Novel 2‐Pyrazolin‐5‐one Derivative through Unforeseen Orthoamide Intermediate: Mechanistic Insights on Isocyanide Based [4+1] Cycloaddition. ChemistrySelect 2021. [DOI: 10.1002/slct.202101929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ariel Leyton
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Walter A. Rabanal‐León
- Departamento de Química Analítica e Inorgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Juliana Andrea Murillo‐López
- Departamento de Ciencias Químicas Facultad de Ciencias Exactas Universidad Andres Bello Autopista Concepción-Talcahuano 7100 Talcahuano Chile
| | - Julio Belmar
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Odette Concepción
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Alexander F. Torre
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Francisco M. Muñiz
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Reynier Báez
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Claudio A. Jiménez
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
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231
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Leshabane M, Dziwornu GA, Coertzen D, Reader J, Moyo P, van der Watt M, Chisanga K, Nsanzubuhoro C, Ferger R, Erlank E, Venter N, Koekemoer L, Chibale K, Birkholtz LM. Benzimidazole Derivatives Are Potent against Multiple Life Cycle Stages of Plasmodium falciparum Malaria Parasites. ACS Infect Dis 2021; 7:1945-1955. [PMID: 33673735 DOI: 10.1021/acsinfecdis.0c00910] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The continued emergence of resistance to front-line antimalarial treatments is of great concern. Therefore, new compounds that potentially have a novel target in various developmental stages of Plasmodium parasites are needed to treat patients and halt the spread of malaria. Here, several benzimidazole derivatives were screened for activity against the symptom-causing intraerythrocytic asexual blood stages and the transmissible gametocyte stages of P. falciparum. Submicromolar activity was obtained for 54 compounds against asexual blood stage parasites with 6 potent at IC50 < 100 nM while not displaying any marked toxicity against mammalian cells. Nanomolar potency was also observed against gametocytes with two compounds active against early stage gametocytes and two compounds active against late-stage gametocytes. The transmission-blocking potential of the latter was confirmed as they could prevent male gamete exflagellation and the lead compound reduced transmission by 72% in an in vivo mosquito feeding model. These compounds therefore have activity against multiple stages of Plasmodium parasites with potential for differential targets.
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Affiliation(s)
- Meta Leshabane
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
| | | | - Dina Coertzen
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
| | - Janette Reader
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
| | - Phanankosi Moyo
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
| | - Mariëtte van der Watt
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
| | - Kelly Chisanga
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | | | - Richard Ferger
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Erica Erlank
- Wits Research Institute for Malaria, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, and Centre for Emerging Zoonotic and Parasitic Diseases, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, 2193, South Africa
| | - Nelius Venter
- Wits Research Institute for Malaria, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, and Centre for Emerging Zoonotic and Parasitic Diseases, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, 2193, South Africa
| | - Lizette Koekemoer
- Wits Research Institute for Malaria, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, and Centre for Emerging Zoonotic and Parasitic Diseases, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, 2193, South Africa
| | - Kelly Chibale
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
- South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
| | - Lyn-Marie Birkholtz
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
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232
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Axelsson A, Westerlund M, Zacharias SC, Runemark A, Haukka M, Sundén H. Asymmetric Synthesis of Dihydropyranones with Three Contiguous Stereocenters by an NHC‐Catalyzed Kinetic Resolution. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Anton Axelsson
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg (Sweden)
| | - Mathias Westerlund
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg (Sweden)
| | - Savannah C. Zacharias
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 412 96 Göteborg Sweden
| | - August Runemark
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg (Sweden)
| | - Matti Haukka
- Department of Chemistry University of Jyväskylä P.O. Box 35 FI-40014 Jyväskylä Finland
| | - Henrik Sundén
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg (Sweden)
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 412 96 Göteborg Sweden
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233
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Sulfide‐Catalyzed Diastereoselective Spirocyclopropanation: Constructing Spiro‐cyclopropanyl‐pyrazolones From α‐Arylidenepyrazolones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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234
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Thakur R, Jaiswal Y, Kumar A. Primary amides: Sustainable weakly coordinating groups in transition metal-catalyzed C–H bond functionalization reactions. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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235
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Mishra P, Sepay N, Panda N. Access to chromone-3-carboxylic acid via silver mediated coupling of 4-hydroxy coumarin and enol ester. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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236
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Garadi WA, Bakri YE, Lai CH, Anouar EH, Ghayati LE, Mague JT, Essassi EM. Synthesis, X-ray, spectroscopic characterization, Hirshfeld surface analysis, DFT calculation and molecular docking investigations of a novel 7-phenyl-2,3,4,5-tetrahydro-1H-1,4- diazepin-5-one derivative. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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237
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Jagtap RA, Punji B. Nickel-Catalyzed C-H Bond Functionalization of Azoles and Indoles. CHEM REC 2021; 21:3573-3588. [PMID: 34075686 DOI: 10.1002/tcr.202100113] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
Direct C-H functionalization of privileged and biologically relevant azoles and indoles represents an important chemical transformation in molecular science. Despite significant progress in the palladium-catalyzed regioselective C-H functionalization of azoles and indoles, the use of abundant and less expensive nickel catalyst is underdeveloped. In the recent past, the nickel-catalyzed regioselective C-H alkylation, arylation, alkenylation and alkynylation of azoles and indoles have been substantially explored, which can be applied to the complex organic molecule synthesis. In this Account, we summarize the developments in nickel-catalyzed regioselective functionalization of azoles and indoles with a considerable focus on the reaction mechanism.
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Affiliation(s)
- Rahul A Jagtap
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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238
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Wang R, Liu S, Li L, Song A, Yu S, Zhuo S, Xing LB. Metal-free catalyst for the visible-light-induced photocatalytic synthesis of quinazolinones. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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239
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Zhang B, Yang Y, Wang F, Gou X, Wang X, Liang Y, Li Y, Quan Z. Reductive Coupling of Aryl Halides
via
C—H Activation of Indene. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Bo‐Sheng Zhang
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials, Northwest Normal University Lanzhou Gansu 730070 China
| | - Ying‐Hui Yang
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials, Northwest Normal University Lanzhou Gansu 730070 China
| | - Fan Wang
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials, Northwest Normal University Lanzhou Gansu 730070 China
| | - Xue‐Ya Gou
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Lanzhou Gansu 730000 China
| | - Xi‐Cun Wang
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials, Northwest Normal University Lanzhou Gansu 730070 China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Lanzhou Gansu 730000 China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation, Chinese University of Hong Kong Shatin Hong Kong, China
| | - Zheng‐Jun Quan
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials, Northwest Normal University Lanzhou Gansu 730070 China
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240
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Yavuz SÇ, Akkoç S, Tüzün B, Şahin O, Saripinar E. Efficient synthesis and molecular docking studies of new pyrimidine-chromeno hybrid derivatives as potential antiproliferative agents. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1922920] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sevtap Çağlar Yavuz
- Department of Chemistry, Faculty of Science, Erciyes University, Kayseri, Turkey
- Department of Veterinary Science, Şefaatli Vocational School, Yozgat Bozok University, Yozgat, Turkey
| | - Senem Akkoç
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Süleyman Demirel University, Isparta, Turkey
| | - Burak Tüzün
- Department of Chemistry, Faculty of Science, Sivas Cumhuriyet University, Sivas, Turkey
| | - Onur Şahin
- Scientific and Technological Research Application and Research Center, Sinop University, Sinop, Turkey
| | - Emin Saripinar
- Department of Chemistry, Faculty of Science, Erciyes University, Kayseri, Turkey
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241
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Petrou A, Fesatidou M, Geronikaki A. Thiazole Ring-A Biologically Active Scaffold. Molecules 2021; 26:3166. [PMID: 34070661 PMCID: PMC8198555 DOI: 10.3390/molecules26113166] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/15/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Thiazole is a good pharmacophore nucleus due to its various pharmaceutical applications. Its derivatives have a wide range of biological activities such as antioxidant, analgesic, and antimicrobial including antibacterial, antifungal, antimalarial, anticancer, antiallergic, antihypertensive, anti-inflammatory, and antipsychotic. Indeed, the thiazole scaffold is contained in more than 18 FDA-approved drugs as well as in numerous experimental drugs. OBJECTIVE To summarize recent literature on the biological activities of thiazole ring-containing compounds Methods: A literature survey regarding the topics from the year 2015 up to now was carried out. Older publications were not included, since they were previously analyzed in available peer reviews. RESULTS Nearly 124 research articles were found, critically analyzed, and arranged regarding the synthesis and biological activities of thiazoles derivatives in the last 5 years.
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Affiliation(s)
| | | | - Athina Geronikaki
- School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.P.); (M.F.)
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242
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Yu B, Zou S, Huang H. Palladium-Catalyzed Ring-Closing Reaction for the Synthesis of Saturated N-Heterocycles with Aminodienes and N,O-Acetals. J Org Chem 2021; 86:7849-7863. [PMID: 34030442 DOI: 10.1021/acs.joc.1c00752] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient palladium-catalyzed ring-closing reaction of aminodienes with N,O-acetals for the synthesis of saturated N-heterocycles is described. The reaction is consistently operated at room temperature and tolerates a wide range of functional groups with volatile MeOH as the sole byproduct. This method provides rapid and practical access to a broad range of saturated N-heterocycles with diverse structural backbones that are useful building blocks in natural product synthesis and drug discovery.
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Affiliation(s)
- Bangkui Yu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Suchen Zou
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China.,Center for Excellence in Molecular Synthesis of CAS, Hefei, 230026, P. R. China
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243
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Hou H, Ma X, Lin Y, Lin J, Sun W, Wang L, Xu X, Ke F. Electrochemical synthesis of quinazolinone via I 2-catalyzed tandem oxidation in aqueous solution. RSC Adv 2021; 11:17721-17726. [PMID: 35480173 PMCID: PMC9033184 DOI: 10.1039/d1ra02706a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/03/2021] [Indexed: 01/08/2023] Open
Abstract
The development of protocols for synthesizing quinazolinones using biocompatible catalysts in aqueous medium will help to resolve the difficulties of using green and sustainable chemistry for their synthesis. Herein, using I2 in coordination with electrochemical synthesis induced a C-H oxidation reaction which is reported when using water as the environmentally friendly solvent to access a broad range of quinazolinones at room temperature. The reaction mechanism strongly showed that I2 cooperates electrochemically promoted the oxidation of alcohols, then effectively cyclizing amides to various quinazolinones.
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Affiliation(s)
- Huiqing Hou
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Xinhua Ma
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Yingying Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Jin Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Weiming Sun
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Lei Wang
- School of Science, Xuchang University Xuchang 461000 China
| | - Xiuzhi Xu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016.,Faculty of Material and Chemical Engineering, Yibin University Yibin 644000 China
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244
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Natho P, Yang Z, Allen LAT, Rey J, White AJP, Parsons PJ. An entry to 2-(cyclobut-1-en-1-yl)-1 H-indoles through a cyclobutenylation/deprotection cascade. Org Biomol Chem 2021; 19:4048-4053. [PMID: 33885127 DOI: 10.1039/d1ob00430a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A transition-metal-free strategy for the synthesis of 2-(cyclobut-1-en-1-yl)-1H-indoles under mild conditions is described herein. A series of substituted 2-(cyclobut-1-en-1-yl)-1H-indoles are accessed by a one-pot cyclobutenylation/deprotection cascade from N-Boc protected indoles. Preliminary experimental and density functional theory calculations suggest that a Boc-group transfer is involved in the underlying mechanism.
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Affiliation(s)
- Philipp Natho
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ London, UK.
| | - Zeyu Yang
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ London, UK.
| | - Lewis A T Allen
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ London, UK.
| | - Juliette Rey
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ London, UK.
| | - Andrew J P White
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ London, UK.
| | - Philip J Parsons
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ London, UK.
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245
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Sarma D, Majumdar B, Deori B, Jain S, Sarma TK. Photoinduced Enhanced Decomposition of TBHP: A Convenient and Greener Pathway for Aqueous Domino Synthesis of Quinazolinones and Quinoxalines. ACS OMEGA 2021; 6:11902-11910. [PMID: 34056344 PMCID: PMC8154027 DOI: 10.1021/acsomega.1c00211] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Catalyst-free photoinduced processes in aqueous medium represent significant advancement toward development of green and sustainable pathways in organic synthesis. tert-Butyl hydroperoxide (TBHP) is a widely used oxidant in organic reactions, where the decomposition of TBHP into its radicals by metal catalysts or other reagents is a key factor for efficient catalytic outcome. Herein, we report a simple and environmentally friendly visible light-promoted synthetic pathway for the synthesis of N-heterocyclic moieties, such as quinazolinones and quinoxalines, in the presence of TBHP as an oxidizing agent in aqueous medium that requires no catalysts/photocatalysts. The enhanced rate of decomposition to generate free radicals from TBHP upon visible light irradiation is the driving force for the domino reaction.
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246
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Gobinath P, Packialakshmi P, Vijayakumar K, Abdellattif MH, Shahbaaz M, Idhayadhulla A, Surendrakumar R. Synthesis and Cytotoxic Activity of Novel Indole Derivatives and Their in silico Screening on Spike Glycoprotein of SARS-CoV-2. Front Mol Biosci 2021; 8:637989. [PMID: 34046428 PMCID: PMC8144490 DOI: 10.3389/fmolb.2021.637989] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/26/2021] [Indexed: 12/28/2022] Open
Abstract
This work investigated the interaction of indole with SARS-CoV-2. Indole is widely used as a medical material owing to its astounding biological activities. Indole and its derivatives belong to a significant category of heterocyclic compounds that have been used as a crucial component for several syntheses of medicine. A straightforward one-pot three-component synthesis of indole, coupled with Mannich base derivatives 1a-1j, was synthesized without a catalyst. The products were confirmed by IR, 1H-NMR, 13C-NMR, mass spectra, and elemental analysis. The indole derivatives were tested for cytotoxic activity, using three cancer cell lines and normal cell lines of Human embryonic kidney cell (HEK293), liver cell (LO2), and lung cell (MRC5) by MTT assay using doxorubicin as the standard drug. The result of cytotoxicity indole compound 1c (HepG2, LC50-0.9 μm, MCF-7, LC50-0.55 μm, HeLa, LC50-0.50 μm) was found to have high activity compared with other compounds used for the same purpose. The synthesized derivatives have revealed their safety by exhibiting significantly less cytotoxicity against the normal cell line (HEK-293), (LO2), and (MRC5) with IC50 > 100 μg/ml. Besides, we report an in silico study with spike glycoprotein (SARS-CoV-2-S). The selective molecules of compound 1c exhibited the highest docking score -2.808 (kcal/mol) compared to other compounds. This research work was successful in synthesizing a few compounds with potential as anticancer agents. Furthermore, we have tried to emphasize the anticipated role of indole scaffolds in designing and discovering the much-awaited anti-SARS CoV-2 therapy by exploring the research articles depicting indole moieties as targeting SARS CoV-2 coronavirus.
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Affiliation(s)
- Perumal Gobinath
- PG & Research, Department of Chemistry, Nehru Memorial College (Affiliated Bharathidasan University), Puthanampatti, India
| | - Ponnusamy Packialakshmi
- PG & Research, Department of Chemistry, Nehru Memorial College (Affiliated Bharathidasan University), Puthanampatti, India
| | | | - Magda H. Abdellattif
- Department of Chemistry, College of Science, Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Mohd Shahbaaz
- South African Medical Research Council Bioinformatics Unit, South African National Bioinformatics Institute, University of the Western Cape, Cape Town, South Africa
- Laboratory of Computational Modeling of Drugs, South Ural State University, Chelyabinsk, Russia
| | - Akbar Idhayadhulla
- PG & Research, Department of Chemistry, Nehru Memorial College (Affiliated Bharathidasan University), Puthanampatti, India
| | - Radhakrishnan Surendrakumar
- PG & Research, Department of Chemistry, Nehru Memorial College (Affiliated Bharathidasan University), Puthanampatti, India
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247
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Xiao X, Shao B, Li J, Yang Z, Lu YJ, Ling F, Zhong W. Enantioselective synthesis of functionalized 1,4-dihydropyrazolo-[4',3':5,6]pyrano[2,3- b]quinolines through ferrocenyl-phosphine-catalyzed annulation of modified MBH carbonates and pyrazolones. Chem Commun (Camb) 2021; 57:4690-4693. [PMID: 33977995 DOI: 10.1039/d1cc00989c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective synthesis of highly functionalized 1,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-b]quinolines from modified MBH carbonates and pyrazolones via a chiral phosphine-mediated alkylation/annulation sequence has been realized. The chiral dihydropyrano[2,3-c]pyrazoles bearing bio-active condensed heterocycles were facilely formed in good chemical yields and with high to excellent enantioselectivity by utilizing low catalyst loading.
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Affiliation(s)
- Xiao Xiao
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China and College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Bingxuan Shao
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Jingyi Li
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Zehui Yang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yin-Jie Lu
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Fei Ling
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Weihui Zhong
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
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248
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Teimouri MB, Yousefi S, Meydani A. One-pot three-component synthesis of a new series of tetrahydrobenzofuran-chromone conjugates. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1918169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | - Ali Meydani
- Faculty of Chemistry, Kharazmi University, Tehran, Iran
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249
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Li X, Chen H, Xuan Q, Mai S, Lan Y, Song Q. Biomimetic Carbene Cascades Enabled Imine Derivative Migration from Carbene -Bearing Thiocarbamates. Org Lett 2021; 23:3518-3523. [PMID: 33904743 DOI: 10.1021/acs.orglett.1c00930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inspired by the body circulation of Omeprazole (irreversible proton pump inhibitor), we disclose the carbene-triggered cascades for the synthesis of 2-aminobenzofuran derivatives from N-sulfonyl-1,2,3-triazoles or benzothioazole-bearing thiocarbamates, which represents an unprecedented imine derivative migration process. Furthermore, the desulfurizing reagent-free Barton-Kellogg-type reactions starting from N-sulfonyl-1,2,3-triazoles have also been achieved for the first time, and elemental sulfur is confirmed as a byproduct during this transformation. Both experimental data and DFT calculations further thoroughly explained the unique reactivity.
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Affiliation(s)
- Xue Li
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Haohua Chen
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Qingqing Xuan
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Shaoyu Mai
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China.,Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China.,Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou 350108, P. R. China.,State Key Laboratory of Organometallic Chemistry and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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250
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Pan YL, Xu HF, Hu XY, Li GJ, Chen JZ. Copper(II)-catalysed direct C3-H esterification of indoles assisted by an N, N-bidentate auxiliary moiety. Org Biomol Chem 2021; 19:3911-3924. [PMID: 33949415 DOI: 10.1039/d0ob02301a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The regioselective direct C3-esterification of indoles with OXA is developed in an efficient reaction with carboxylic acids using the catalyst CuBr2 and oxidants Ag2CO3 and K2S2O8. The simple experimental procedure is proved to be broadly applicable to a range of substrates, including aromatic and aliphatic acids, and the corresponding products were obtained in good yields up to 87%. At the same time, it provides a valuable approach to produce C3-benzyl derivatives of indoles through reaction with benzyl carboxylic acid under the same reaction conditions.
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Affiliation(s)
- You-Lu Pan
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou, Zhejiang 310058, China.
| | - Hai-Feng Xu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou, Zhejiang 310058, China.
| | - Xu-Yang Hu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou, Zhejiang 310058, China.
| | - Gang-Jian Li
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou, Zhejiang 310058, China.
| | - Jian-Zhong Chen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou, Zhejiang 310058, China.
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