1
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Jain S, Batabyal M, Thorat RA, Choudhary P, Jha RK, Kumar S. 2-Benzamide Tellurenyl Iodides: Synthesis and Their Catalytic Role in CO 2 Mitigation. Chemistry 2023; 29:e202301502. [PMID: 37338224 DOI: 10.1002/chem.202301502] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/06/2023] [Accepted: 06/20/2023] [Indexed: 06/21/2023]
Abstract
Benzamide-derived organochalcogens (chalcogen=S, Se, and Te) have shown promising interest in biological and synthetic chemistry. Ebselen molecule derived from benzamide moiety is the most studied organoselenium. However, its heavier congener organotellurium is under-explored. Here, an efficient copper-catalyzed atom economical synthetic method has been developed to synthesize 2-phenyl-benzamide tellurenyl iodides by inserting a tellurium atom into carbon-iodine bond of 2-iodobenzamides in one pot with 78-95 % yields. Further, the Lewis acidic nature of Te center and Lewis basic nature of nitrogen of the synthesized 2-Iodo-N-(quinolin-8-yl)benzamide tellurenyl iodides enabled them as pre-catalyst for the activation of epoxide with CO2 at 1 atm for the preparation of cyclic carbonates with TOF and TON values of 1447 h-1 and 4343, respectively, under solvent-free conditions. In addition, 2-iodo-N-(quinolin-8-yl)benzamide tellurenyl iodides have also been used as pre-catalyst for activating anilines and CO2 to form a variety of 1,3-diaryl ureas up to 95 % yield. The mechanistic investigation for CO2 mitigation is done by 125 Te NMR and HRMS studies. It seems that the reaction proceeds via formation of catalytically active Te-N heterocycle, an ebtellur intermediate which is isolated and structurally characterized.
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Affiliation(s)
- Saket Jain
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Monojit Batabyal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Raviraj Ananda Thorat
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Pratibha Choudhary
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Raushan Kumar Jha
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
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2
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Kumar N, Taily IM, Singh C, Kumar S, Rajmani RS, Chakraborty D, Sharma A, Singh P, Thakur KG, Varadarajan R, Ringe RP, Banerjee P, Banerjee I. Identification of diphenylurea derivatives as novel endocytosis inhibitors that demonstrate broad-spectrum activity against SARS-CoV-2 and influenza A virus both in vitro and in vivo. PLoS Pathog 2023; 19:e1011358. [PMID: 37126530 PMCID: PMC10174524 DOI: 10.1371/journal.ppat.1011358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 05/11/2023] [Accepted: 04/12/2023] [Indexed: 05/02/2023] Open
Abstract
Rapid evolution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and influenza A virus (IAV) poses enormous challenge in the development of broad-spectrum antivirals that are effective against the existing and emerging viral strains. Virus entry through endocytosis represents an attractive target for drug development, as inhibition of this early infection step should block downstream infection processes, and potentially inhibit viruses sharing the same entry route. In this study, we report the identification of 1,3-diphenylurea (DPU) derivatives (DPUDs) as a new class of endocytosis inhibitors, which broadly restricted entry and replication of several SARS-CoV-2 and IAV strains. Importantly, the DPUDs did not induce any significant cytotoxicity at concentrations effective against the viral infections. Examining the uptake of cargoes specific to different endocytic pathways, we found that DPUDs majorly affected clathrin-mediated endocytosis, which both SARS-CoV-2 and IAV utilize for cellular entry. In the DPUD-treated cells, although virus binding on the cell surface was unaffected, internalization of both the viruses was drastically reduced. Since compounds similar to the DPUDs were previously reported to transport anions including chloride (Cl-) across lipid membrane and since intracellular Cl- concentration plays a critical role in regulating vesicular trafficking, we hypothesized that the observed defect in endocytosis by the DPUDs could be due to altered Cl- gradient across the cell membrane. Using in vitro assays we demonstrated that the DPUDs transported Cl- into the cell and led to intracellular Cl- accumulation, which possibly affected the endocytic machinery by perturbing intracellular Cl- homeostasis. Finally, we tested the DPUDs in mice challenged with IAV and mouse-adapted SARS-CoV-2 (MA 10). Treatment of the infected mice with the DPUDs led to remarkable body weight recovery, improved survival and significantly reduced lung viral load, highlighting their potential for development as broad-spectrum antivirals.
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Affiliation(s)
- Nirmal Kumar
- Cellular Virology Lab, Department of Biological Sciences, Indian Institute of Science Education and Research, Mohali (IISER Mohali), Mohali, India
| | - Irshad Maajid Taily
- Department of Chemistry, Indian Institute of Technology Ropar (IIT Ropar), Rupnagar, Punjab, India
| | - Charandeep Singh
- Institute of Microbial Technology, Council of Scientific and Industrial Research (CSIR-IMTECH), Chandigarh, India
| | - Sahil Kumar
- Institute of Microbial Technology, Council of Scientific and Industrial Research (CSIR-IMTECH), Chandigarh, India
| | - Raju S. Rajmani
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore (IISc), Bengaluru, India
| | - Debajyoti Chakraborty
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore (IISc), Bengaluru, India
| | - Anshul Sharma
- Institute of Microbial Technology, Council of Scientific and Industrial Research (CSIR-IMTECH), Chandigarh, India
| | - Priyanka Singh
- Department of Chemistry, Indian Institute of Technology Ropar (IIT Ropar), Rupnagar, Punjab, India
| | - Krishan Gopal Thakur
- Institute of Microbial Technology, Council of Scientific and Industrial Research (CSIR-IMTECH), Chandigarh, India
| | - Raghavan Varadarajan
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore (IISc), Bengaluru, India
| | - Rajesh P. Ringe
- Institute of Microbial Technology, Council of Scientific and Industrial Research (CSIR-IMTECH), Chandigarh, India
| | - Prabal Banerjee
- Department of Chemistry, Indian Institute of Technology Ropar (IIT Ropar), Rupnagar, Punjab, India
| | - Indranil Banerjee
- Cellular Virology Lab, Department of Biological Sciences, Indian Institute of Science Education and Research, Mohali (IISER Mohali), Mohali, India
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3
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Wu F, Wang Y, Zhao Y, Tang M, Zeng W, Wang Y, Chang X, Xiang J, Han B, Liu Z. Lactate anion catalyzes aminolysis of polyesters with anilines. SCIENCE ADVANCES 2023; 9:eade7971. [PMID: 36724269 PMCID: PMC9891692 DOI: 10.1126/sciadv.ade7971] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/30/2022] [Indexed: 06/18/2023]
Abstract
Chemical transformation of spent polyesters into value-added chemicals is substantial for sustainable development but still challenging. Here, we report a simple, metal-free, and efficient aminolysis strategy to upcycle polylactic acid by anilines over lactate-based ionic liquids (e.g., tetrabutylammonium lactate), accessing a series of N-aryl lactamides under mild conditions. This strategy is also effective for degradation of poly(bisphenol A carbonate), affording bisphenol A and corresponding diphenylurea derivatives. It is found that, with the assistance of water, lactate anion as hydrogen-bond donor can efficiently activate carbonyl C atom of polyesters via hydrogen bonding with carbonyl O atom; meanwhile, as hydrogen-bond acceptor, it can enhance nucleophilicity of the N atom of anilines via hydrogen bonding with amino H atom. The nucleophilic attack of N atom of anilines on carbonyl C atom of polyesters results in cleavage of C─O bond of polymers and formation of the target products.
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Affiliation(s)
- Fengtian Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
| | - Yuepeng Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanfei Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Minhao Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Zeng
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoqian Chang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junfeng Xiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhimin Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Karche AD, Kamalakannan P, Powar R, Shenoy GG, Padiya KJ. “On-Water” Reaction of (Thio)isocyanate: A Sustainable Process for the Synthesis of Unsymmetrical (Thio)ureas. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amit Dattatray Karche
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
| | - Prabakaran Kamalakannan
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
| | - Rajendra Powar
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
| | - Gautham G. Shenoy
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576 104. India
| | - Kamlesh J. Padiya
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
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5
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Kuznetsov YP, Burmistrov VV, Butov GM. Synthesis and Properties of Symmetrical Bis-ureas Containing a 4-(Trifluoromethoxy)phenyl Fragment. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022100074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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6
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York E, McNaughton DA, Roseblade A, Cranfield CG, Gale PA, Rawling T. Structure-Activity Relationship and Mechanistic Studies of Bisaryl Urea Anticancer Agents Indicate Mitochondrial Uncoupling by a Fatty Acid-Activated Mechanism. ACS Chem Biol 2022; 17:2065-2073. [PMID: 35854216 DOI: 10.1021/acschembio.1c00807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Targeting the cancer cell mitochondrion is a promising approach for developing novel anticancer agents. The experimental anticancer agent N,N'-bis(3,5-dichlorophenyl)urea (SR4) induces apoptotic cell death in several cancer cell lines by uncoupling mitochondrial oxidative phosphorylation (OxPhos) using a protein-free mechanism. However, the precise mechanism by which SR4 depolarizes mitochondria is unclear because SR4 lacks an acidic functional group typically found in protein-independent uncouplers. Recently, it was shown that structurally related thioureas can facilitate proton transport across lipid bilayers by a fatty acid-activated mechanism, in which the fatty acid acts as the site of protonation/deprotonation and the thiourea acts as an anion transporter that shuttles deprotonated fatty acids across the phospholipid bilayer to enable proton leak. In this paper, we show that SR4-mediated proton transport is enhanced by the presence of free fatty acids in the lipid bilayer, indicating that SR4 uncouples mitochondria through the fatty acid-activated mechanism. This mechanistic insight was used to develop a library of substituted bisaryl ureas for structure-activity relationship studies and subsequent cell testing. It was found that lipophilic electron-withdrawing groups on bisaryl ureas enhanced electrogenic proton transport via the fatty acid-activated mechanism and had the capacity to depolarize mitochondria and reduce the viability of MDA-MB-231 breast cancer cells. The most active compound in the series reduced cell viability with greater potency than SR4 and was more effective at inhibiting adenosine triphosphate production.
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Affiliation(s)
- Edward York
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | | | - Ariane Roseblade
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Charles G Cranfield
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Philip A Gale
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.,The University of Sydney Nano Institute (SydneyNano), The University of Sydney, Sydney, NSW 2006, Australia
| | - Tristan Rawling
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
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7
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Rigid Nanoporous Urea-Based Covalent Triazine Frameworks for C2/C1 and CO 2/CH 4 Gas Separation. Molecules 2021; 26:molecules26123670. [PMID: 34208570 PMCID: PMC8235060 DOI: 10.3390/molecules26123670] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 11/30/2022] Open
Abstract
C2/C1 hydrocarbon separation is an important industrial process that relies on energy-intensive cryogenic distillation methods. The use of porous adsorbents to selectively separate these gases is a viable alternative. Highly stable covalent triazine frameworks (urea-CTFs) have been synthesized using 1,3-bis(4-cyanophenyl)urea. Urea-CTFs exhibited gas uptakes of C2H2 (3.86 mmol/g) and C2H4 (2.92 mmol/g) at 273 K and 1 bar and is selective over CH4. Breakthrough simulations show the potential of urea-CTFs for C2/C1 separation.
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8
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Debiec K, Sochacka E. Efficient access to 3'- O-phosphoramidite derivatives of tRNA related N 6-threonylcarbamoyladenosine (t 6A) and 2-methylthio- N 6-threonylcarbamoyladenosine (ms 2t 6A). RSC Adv 2021; 11:1992-1999. [PMID: 35424152 PMCID: PMC8693639 DOI: 10.1039/d0ra09803e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
An efficient method of ureido linkage formation during epimerization-free one-pot synthesis of protected hypermodified N 6-threonylcarbamoyladenosine (t6A) and its 2-SMe analog (ms2t6A) was developed. The method is based on a Tf2O-mediated direct conversion of the N-Boc-protecting group of N-Boc-threonine into the isocyanate derivative, followed by reaction with the N 6 exo-amine function of the sugar protected nucleoside (yield 86-94%). Starting from 2',3',5'-tri-O-acetyl protected adenosine or 2-methylthioadenosine, the corresponding 3'-O-phosphoramidite monomers were obtained in 48% and 42% overall yield (5 step synthesis). In an analogous synthesis, using the 2'-O-(tert-butyldimethylsilyl)-3',5'-O-(di-tert-butylsilylene) protection system at the adenosine ribose moiety, the t6A-phosphoramidite monomer was obtained in a less laborious manner and in a remarkably better yield of 74%.
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Affiliation(s)
- Katarzyna Debiec
- Institute of Organic Chemistry, Lodz University of Technology Zeromskiego 116 90-924 Lodz Poland
| | - Elzbieta Sochacka
- Institute of Organic Chemistry, Lodz University of Technology Zeromskiego 116 90-924 Lodz Poland
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9
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Bokale-Shivale S, Amin MA, Sawant RT, Stevens MY, Turanli L, Hallberg A, Waghmode SB, Odell LR. Synthesis of substituted 3,4-dihydroquinazolinones via a metal free Leuckart-Wallach type reaction. RSC Adv 2020; 11:349-353. [PMID: 35423044 PMCID: PMC8691039 DOI: 10.1039/d0ra10142g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 02/03/2023] Open
Abstract
The 3,4-dihydroquinazolinone (DHQ) moiety is a highly valued scaffold in medicinal chemistry due to the vast number of biologically-active compounds based on this core structure. Current synthetic methods to access these compounds are limited in terms of diversity and flexibility and often require the use of toxic reagents or expensive transition-metal catalysts. Herein, we describe the discovery and development of a novel cascade cyclization/Leuckart-Wallach type strategy to prepare substituted DHQs in a modular and efficient process using readily-available starting materials. Notably, the reaction requires only the addition of formic acid or acetic acid/formic acid and produces H2O, CO2 and methanol as the sole reaction byproducts. Overall, the reaction provides an attractive entry point into this important class of compounds and could even be extended to isotopic labelling via the site-selective incorporation of a deuterium atom.
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Affiliation(s)
- Suvarna Bokale-Shivale
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Mohammad A Amin
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Rajiv T Sawant
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Marc Y Stevens
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Lewend Turanli
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Adam Hallberg
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Suresh B Waghmode
- Department of Chemistry, Savitribai Phule Pune University (formerly Pune University) Ganeshkhind Pune 411 007 India
| | - Luke R Odell
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
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10
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Zhao Y, Guo X, Si Z, Hu Y, Sun Y, Liu Y, Ji Z, You J. Hydrosilane-Assisted Synthesis of Urea Derivatives from CO 2 and Amines. J Org Chem 2020; 85:13347-13353. [PMID: 32997938 DOI: 10.1021/acs.joc.0c02032] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A methodology employing CO2, amines, and phenylsilane was discussed to access aryl- or alkyl-substituted urea derivatives. This procedure was characterized by adopting hydrosilane to promote the formation of ureas directly, without the need to prepare silylamines in advance. Control reactions suggested that FeCl3 was a favorable additive for the generation of ureas, and this 1,5,7-triazabicyclo[4.4.0]dec-5-ene-catalyzed reaction might proceed through nucleophilic addition, silicon migration, and the subsequent formal substitution of silylcarbamate.
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Affiliation(s)
- Yulei Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xuqiang Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Zhiyao Si
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yanan Hu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Ying Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yunlin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhongyin Ji
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Jinmao You
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.,Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, China
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11
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Chen H, Li P, Qin R, Yan H, Li G, Huang H. DMAP-Catalyzed One-Pot Synthesis of Quinazoline-2,4-diones from 2-Aminobenzamides and Di- tert-butyl Dicarbonate. ACS OMEGA 2020; 5:9614-9623. [PMID: 32363314 PMCID: PMC7191844 DOI: 10.1021/acsomega.0c01104] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/09/2020] [Indexed: 05/08/2023]
Abstract
The one-pot synthesis of quinazoline-2,4-diones was developed in the presence of 4-dimethylaminopyridine (DMAP) by metal-free catalysis. The commercially available (Boc)2O acted as a key precursor in the construction of the 2-position carbonyl of quinazolinediones. The p-methoxybenzyl (PMB)-activated heterocyclization could smoothly proceed at room temperature instead of the microwave condition. This strategy is compatible with a variety of substrates with different functional groups. Furthermore, this protocol was utilized to smoothly prepare Zenarestat with a total yield of 70%.
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Affiliation(s)
- Hui Chen
- Beijing
Key Laboratory of Environmental and Viral Oncology, College of Life
Science and Bio-engineering, Beijing University
of Technology, Beijing 100124, P. R. China
| | - Peng Li
- Beijing
Key Laboratory of Active Substance Discovery and Druggability Evaluation
& Chinese Academy of Medical Sciences Key Laboratory of Anti-DR
TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of
Medical Sciences, Beijing 100050, P. R. China
| | - Rongfei Qin
- Beijing
Key Laboratory of Active Substance Discovery and Druggability Evaluation
& Chinese Academy of Medical Sciences Key Laboratory of Anti-DR
TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of
Medical Sciences, Beijing 100050, P. R. China
| | - Hong Yan
- Beijing
Key Laboratory of Environmental and Viral Oncology, College of Life
Science and Bio-engineering, Beijing University
of Technology, Beijing 100124, P. R. China
| | - Gang Li
- Beijing
Key Laboratory of Active Substance Discovery and Druggability Evaluation
& Chinese Academy of Medical Sciences Key Laboratory of Anti-DR
TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of
Medical Sciences, Beijing 100050, P. R. China
| | - Haihong Huang
- Beijing
Key Laboratory of Active Substance Discovery and Druggability Evaluation
& Chinese Academy of Medical Sciences Key Laboratory of Anti-DR
TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of
Medical Sciences, Beijing 100050, P. R. China
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12
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Bugaenko DI, Karchava AV, Yurovskaya MA. The versatility of DABCO: synthetic applications of its basic, nucleophilic, and catalytic properties. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02655-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Taily IM, Saha D, Banerjee P. [3+3] Annulation via Ring Opening/Cyclization of Donor-Acceptor Cyclopropanes with (Un)symmetrical Ureas: A Quick Access to Highly Functionalized Tetrahydropyrimidinones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901400] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Irshad Maajid Taily
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
| | - Debarshi Saha
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
| | - Prabal Banerjee
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
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14
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Smolobochkin AV, Gazizov AS, Burilov AR, Pudovik MA. Ureas bearing alkylaromatic moieties: their synthesis and biological activity. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2473-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Bana P, Szigetvári Á, Kóti J, Éles J, Greiner I. Flow-oriented synthetic design in the continuous preparation of the aryl piperazine drug flibanserin. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00266e] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The first integrated continuous-flow synthesis of the drug substance flibanserin was developed, using an uninterrupted four-step sequence, via an unprecedented route.
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