1
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Egbewande FA, Schwartz BD, Duffy S, Avery VM, Davis RA. Synthesis and Antimalarial Evaluation of Halogenated Analogues of Thiaplakortone A. Mar Drugs 2023; 21:md21050317. [PMID: 37233511 DOI: 10.3390/md21050317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 05/27/2023] Open
Abstract
The incorporation of bromine, iodine or fluorine into the tricyclic core structure of thiaplakortone A (1), a potent antimalarial marine natural product, is reported. Although yields were low, it was possible to synthesise a small nine-membered library using the previously synthesised Boc-protected thiaplakortone A (2) as a scaffold for late-stage functionalisation. The new thiaplakortone A analogues (3-11) were generated using N-bromosuccinimide, N-iodosuccinimide or a Diversinate™ reagent. The chemical structures of all new analogues were fully characterised by 1D/2D NMR, UV, IR and MS data analyses. All compounds were evaluated for their antimalarial activity against Plasmodium falciparum 3D7 (drug-sensitive) and Dd2 (drug-resistant) strains. Incorporation of halogens at positions 2 and 7 of the thiaplakortone A scaffold was shown to reduce antimalarial activity compared to the natural product. Of the new compounds, the mono-brominated analogue (compound 5) displayed the best antimalarial activity with IC50 values of 0.559 and 0.058 μM against P. falciparum 3D7 and Dd2, respectively, with minimal toxicity against a human cell line (HEK293) observed at 80 μM. Of note, the majority of the halogenated compounds showed greater efficacy against the P. falciparum drug-resistant strain.
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Affiliation(s)
- Folake A Egbewande
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
| | - Brett D Schwartz
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
| | - Sandra Duffy
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Discovery Biology, Centre for Cellular Phenomics, Griffith University, Nathan, QLD 4111, Australia
| | - Vicky M Avery
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Discovery Biology, Centre for Cellular Phenomics, Griffith University, Nathan, QLD 4111, Australia
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- NatureBank, Griffith University, Nathan, QLD 4111, Australia
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2
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Hong D, Lee K. Polymorphic structures of 3-phenyl-1 H-1,3-benzo-diazol-2(3 H)-one. Acta Crystallogr E Crystallogr Commun 2023; 79:534-537. [PMID: 37288468 PMCID: PMC10242737 DOI: 10.1107/s2056989023003961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/03/2023] [Indexed: 06/09/2023]
Abstract
The polymorphic structures (I and II) of 3-phenyl-1H-1,3-benzo-diazol-2(3H)-one, C13H10N2O, acquired from pentane diffusion into the solution in THF, are reported. The structures show negligible differences in bond distances and angles, but the C-N-C-C torsion angles between the backbone and the phenyl substituent, 123.02 (15)° for I and 137.18 (11)° for II, are different. Compound I features a stronger C=O⋯H-N hydrogen bond than that in II, while the structure of II exhibits a stronger π-π inter-action than in I, as confirmed by the shorter inter-centroid distance [3.3257 (8) Å in II in comparison to 3.6862 (7) Å in I]. Overall, the supra-molecular inter-actions of I and II are distinct, presumably originating from the variation in the dihedral angle.
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Affiliation(s)
- Dabeen Hong
- Department of Chemical Education and Research Institute of Natural Sciences, Gyeongsang National University, Gyeongsangnam-do 52828, Republic of Korea
| | - Kyounghoon Lee
- Department of Chemical Education and Research Institute of Natural Sciences, Gyeongsang National University, Gyeongsangnam-do 52828, Republic of Korea
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3
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Goharshadi EK, Goharshadi K, Moghayedi M. The use of nanotechnology in the fight against viruses: A critical review. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214559] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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4
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Govindan K, Jayaram A, Duraisamy T, Chen NQ, Lin WY. Metal-Free N-H/C-H Carbonylation by Phenyl Isocyanate: Divergent Synthesis of Six-Membered N-Heterocycles. J Org Chem 2022; 87:8719-8729. [PMID: 35723982 DOI: 10.1021/acs.joc.2c01026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We disclose a method using phenyl isocyanate to synthesize carbonyl-containing N-heterocycles. The metal-free novel approach for both N-H and C-H carbonylation processes was successfully refined, delivering a range of synthetically valuable derivatives of quinazoline-2,4(1H,3H)-dione, 2H-benzo[e] [1,2,4] thiadiazin-3(4H)-one 1,1-dioxide, and pyrrolo[1,2-a] quinoxalin-4(5H)-one. The protocol features broad substrates with diverse reactions suitable for excellent yields, mild conditions, and good functional group compatibility. Moreover, the applicability of the reaction was characterized by gram-scale synthesis and synthetic transformations for drug molecules.
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Affiliation(s)
- Karthick Govindan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Alageswaran Jayaram
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Tamilselvan Duraisamy
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Nian-Qi Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Wei-Yu Lin
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan, ROC.,Drug Development and Value Creation Research Centre, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
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5
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Jiang X, Wu K, Bai R, Zhang P, Zhang Y. Functionalized quinoxalinones as privileged structures with broad-ranging pharmacological activities. Eur J Med Chem 2022; 229:114085. [PMID: 34998058 DOI: 10.1016/j.ejmech.2021.114085] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/16/2021] [Accepted: 12/24/2021] [Indexed: 02/08/2023]
Abstract
Quinoxalinones are a class of heterocyclic compounds which attract extensive attention owing to their potential in the field of organic synthesis and medicinal chemistry. During the past few decades, many new synthetic strategies toward the functionalization of quinoxalinone based scaffolds have been witnessed. Regrettably, there are only a few reports on the pharmacological activities of quinoxalinone scaffolds from a medicinal chemistry perspective. Therefore, herein we intend to outline the applications of multifunctional quinoxalinones as privileged structures possessing various biological activities, including anticancer, neuroprotective, antibacterial, antiviral, antiparasitic, anti-inflammatory, antiallergic, anti-cardiovascular, anti-diabetes, antioxidation, etc. We hope that this review will facilitate the development of quinoxalinone derivatives in medicinal chemistry.
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Affiliation(s)
- Xiaoying Jiang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China; College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Kaiyu Wu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Renren Bai
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, PR China; Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, PR China.
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China.
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China.
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6
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Wang Y, Guo C, Tao S, Liu J, Zhao J, Liu N, Dai B. Basicity-Tuned Selectivity: Synthesis of Benzimidazolone and Benzodiazepine from N-Alkyl- N-(2-(pyridin-2-ylamino)-phenyl)formamides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202107062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Srivastava R, Gupta SK, Naaz F, Sen Gupta PS, Yadav M, Singh VK, Singh A, Rana MK, Gupta SK, Schols D, Singh RK. Alkylated benzimidazoles: Design, synthesis, docking, DFT analysis, ADMET property, molecular dynamics and activity against HIV and YFV. Comput Biol Chem 2020; 89:107400. [PMID: 33068917 PMCID: PMC7537607 DOI: 10.1016/j.compbiolchem.2020.107400] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/22/2020] [Accepted: 10/02/2020] [Indexed: 12/12/2022]
Abstract
New benzimidazole analogs synthesized as antivirals against HIV-1 and yellow fever virus. Molecular dynamics simulation studies indicated a stable ligand-protein complex of compound 3a within NNIBP of HIV-RT. DFT analysis confirmed the stability of hydrogen bonding interaction between the TRP 229 residue of HIV-RT and compound 3a. Molecules were tested for their anti-HIV and broad spectrum antiviral properties against different DNA and RNA viruses. Antiviral properties and cytotoxicity determined using MTT assay. Compound 3a showed anti-HIV activity and compound 2b showed excellent inhibition property against yellow fever virus.
A series of alkylated benzimidazole derivatives was synthesized and screened for their anti-HIV, anti-YFV, and broad-spectrum antiviral properties. The physicochemical parameters and drug-like properties of the compounds were assessed first, and then docking studies and MD simulations on HIV-RT allosteric sites were conducted to find the possible mode of their action. DFT analysis was also performed to confirm the nature of the hydrogen bonding interaction of active compounds. The in silico studies indicated that the molecules behaved like possible NNRTIs. The nature – polar or non-polar and position of the substituent present at fifth, sixth, and N-1 positions of the benzimidazole moiety played an important role in determining the antiviral properties of the compounds. Among the various compounds, 2-(5,6-dibromo-2-chloro-1H-benzimidazol-1-yl)ethan-1-ol (3a) showed anti-HIV activity with an appreciably low IC50 value as 0.386 × 10−5μM. Similarly, compound 2b, 3-(2-chloro-5-nitro-1H-benzimidazol-1-yl) propan-1-ol, showed excellent inhibitory property against the yellow fever virus (YFV) with EC50 value as 0.7824 × 10−2μM.
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Affiliation(s)
- Ritika Srivastava
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Sunil K Gupta
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Farha Naaz
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Parth Sarthi Sen Gupta
- Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur, Odisha 760010, India
| | - Madhu Yadav
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Vishal Kumar Singh
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Anuradha Singh
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Malay Kumar Rana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur, Odisha 760010, India
| | | | | | - Ramendra K Singh
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad, 211002, India.
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8
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Egbewande FA, Coster MJ, Jenkins ID, Davis RA. Reaction of Papaverine with Baran Diversinates TM. Molecules 2019; 24:molecules24213938. [PMID: 31683610 PMCID: PMC6864744 DOI: 10.3390/molecules24213938] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 12/01/2022] Open
Abstract
The reaction of papaverine with a series of Baran DiversinatesTM is reported. Although the yields were low, it was possible to synthesize a small biodiscovery library using this plant alkaloid as a scaffold for late-stage C–H functionalization. Ten papaverine analogues (2–11), including seven new compounds, were synthesized. An unexpected radical-induced exchange reaction is reported where the dimethoxybenzyl group of papaverine was replaced by an alkyl group. This side reaction enabled the synthesis of additional novel fragments based on the isoquinoline scaffold, which is present in numerous natural products. Possible reasons for the poor yields in the DiversinateTM reactions with this particular scaffold are discussed.
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Affiliation(s)
- Folake A Egbewande
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Mark J Coster
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Ian D Jenkins
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
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9
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Liang T, Zhao H, Gong L, Jiang H, Zhang M. Synthesis of Multisubstituted Benzimidazolones via Copper-Catalyzed Oxidative Tandem C-H Aminations and Alkyl Deconstructive Carbofunctionalization. iScience 2019; 15:127-135. [PMID: 31048147 PMCID: PMC6496510 DOI: 10.1016/j.isci.2019.04.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/27/2019] [Accepted: 04/15/2019] [Indexed: 01/25/2023] Open
Abstract
Benzimidazolone constitutes the core structure of numerous pharmaceuticals, agrochemicals, inhibitors, pigments, herbicides, and fine chemicals. Amination of hydrocarbons is an attractive tool for the creation of nitrogen-containing products. However, the multiple steps, harsh conditions, and low atom efficiencies often present in these reactions remain challenging. We present a multicomponent synthesis of functional benzimidazolones from arylamines, dialkylamines, and alcohols, acting via the sequence of copper-catalyzed oxidative tandem C-H aminations and alkyl deconstructive carbofunctionalization. The catalytic transformation forms multiple bonds in one single operation, uses readily available feedstocks and a naturally abundant Cu/O2 catalyst system, has broad substrate scope, avoids pre-installation of aminating agents and directing groups, and provides high chemo- and regioselectivity, resulting in direct functionalization of inert C-H and C-C bonds via single-electron oxidation-induced activation mode. This platform can be expected to provide structurally diverse products with interesting biological, chemical, and physical properties.
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Affiliation(s)
- Taoyuan Liang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - He Zhao
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Lingzhen Gong
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Min Zhang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
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10
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Xu F, Long H, Song J, Xu H. De Novo Synthesis of Highly Functionalized Benzimidazolones and Benzoxazolones through an Electrochemical Dehydrogenative Cyclization Cascade. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904931] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Fan Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province,iChEMCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 P. R. China
| | - Hao Long
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province,iChEMCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 P. R. China
| | - Jinshuai Song
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P. R. China
| | - Hai‐Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province,iChEMCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 P. R. China
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11
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Xu F, Long H, Song J, Xu H. De Novo Synthesis of Highly Functionalized Benzimidazolones and Benzoxazolones through an Electrochemical Dehydrogenative Cyclization Cascade. Angew Chem Int Ed Engl 2019; 58:9017-9021. [DOI: 10.1002/anie.201904931] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Indexed: 01/13/2023]
Affiliation(s)
- Fan Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province,iChEMCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 P. R. China
| | - Hao Long
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province,iChEMCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 P. R. China
| | - Jinshuai Song
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P. R. China
| | - Hai‐Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province,iChEMCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 P. R. China
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12
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A microwave-assisted approach to N-(2-nitrophenyl)benzenesulfonamides that enhanced peroxidase activity in response to excess cadmium. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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13
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Iannazzo D, Pistone A, Ferro S, De Luca L, Monforte AM, Romeo R, Buemi MR, Pannecouque C. Graphene Quantum Dots Based Systems As HIV Inhibitors. Bioconjug Chem 2018; 29:3084-3093. [DOI: 10.1021/acs.bioconjchem.8b00448] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Daniela Iannazzo
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy
| | - Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy
| | - Stefania Ferro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Laura De Luca
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Anna Maria Monforte
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Roberto Romeo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Maria Rosa Buemi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Christophe Pannecouque
- Department of Microbiology and Immunology, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, KU Leuven, Herestraat 49, B-3000 Leuven, Belgium
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14
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Structural optimization of N1-aryl-benzimidazoles for the discovery of new non-nucleoside reverse transcriptase inhibitors active against wild-type and mutant HIV-1 strains. Bioorg Med Chem 2018; 26:661-674. [DOI: 10.1016/j.bmc.2017.12.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/20/2017] [Accepted: 12/22/2017] [Indexed: 11/20/2022]
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15
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Meng Y, Wang B, Ren L, Zhao Q, Yu W, Chang J. I2-Mediated transition-metal-free aromatic C–H amination for the synthesis of benzimidazol-2-ones and related heterocycles. NEW J CHEM 2018. [DOI: 10.1039/c8nj03166e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A practical I2-mediated aromatic C–H amination reaction was established for benzimidazol-2-one synthesis under transition-metal-free conditions. The present reaction can be performed directly from disubstituted amines and isocyanates without the purification of the urea intermediates in a scalable fashion.
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Affiliation(s)
- Yinggao Meng
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Bingnan Wang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Linning Ren
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Qiongli Zhao
- Collaborative Innovation Centre of New Drug Research and Safety Evaluation
- China
- School of Pharmaceutical Sciences
- Zhengzhou University
- Zhengzhou
| | - Wenquan Yu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Junbiao Chang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
- Collaborative Innovation Centre of New Drug Research and Safety Evaluation
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16
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Shiri F, Pirhadi S, Rahmani A. Identification of new potential HIV-1 reverse transcriptase inhibitors by QSAR modeling and structure-based virtual screening. J Recept Signal Transduct Res 2017; 38:37-47. [PMID: 29254400 DOI: 10.1080/10799893.2017.1414844] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Non-nucleoside reverse transcriptase inhibitors (NNRTIs) have gained a definitive place due to their unique antiviral potency, high specificity and low toxicity in antiretroviral combination therapies which are used to treat HIV. To design more specific HIV-1 inhibitors, 218 diverse non-nucleoside reverse transcriptase inhibitors with their EC50 values were collected. Then, different types of molecular descriptors were calculated. Also, genetic algorithm (GA) and enhanced replacement methods (ERM) were used as the variable selection approaches to choose more relevant features. Based on selected descriptors, a classification support vector machine (SVM) model was constructed to categorize compounds into two groups of active and inactive ones. The most active compound in the set was docked and was used as the input to the Pharmit server to screen the Molport and PubChem libraries by constructing a structure-based pharmacophore model. Shape filters for the protein and ligand as well as Lipinski's rule of five have been applied to filter out the output of virtual screening from pharmacophore search. Three hundred and thirty-four compounds were finally retrieved from the virtual screening and were fed to the previously constructed SVM model. Among them, the SVM model rendered seven active compounds and they were also analyzed by docking calculations and ADME/Tox parameters.
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Affiliation(s)
- Fereshteh Shiri
- a Department of Chemistry , University of Zabol , Zabol , Iran
| | - Somayeh Pirhadi
- b Medicinal and Natural Products Chemistry Research Center , Shiraz University of Medical Sciences , Shiraz , Iran
| | - Azita Rahmani
- a Department of Chemistry , University of Zabol , Zabol , Iran
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17
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Kang D, Ding X, Wu G, Huo Z, Zhou Z, Zhao T, Feng D, Wang Z, Tian Y, Daelemans D, De Clercq E, Pannecouque C, Zhan P, Liu X. Discovery of Thiophene[3,2- d]pyrimidine Derivatives as Potent HIV-1 NNRTIs Targeting the Tolerant Region I of NNIBP. ACS Med Chem Lett 2017; 8:1188-1193. [PMID: 29152052 DOI: 10.1021/acsmedchemlett.7b00361] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 10/19/2017] [Indexed: 12/18/2022] Open
Abstract
Our previous studies led us to conclude that thiophene[3,2-d]pyrimidine is a promising scaffold for diarylpyrimidine (DAPY)-type anti-HIV agents with potent activity against resistance-associated human immunodeficiency virus (HIV) variants (J. Med. Chem. 2016, 59, 7991-8007; J. Med. Chem. 2017, 60, 4424-4443). In the present study, we designed and synthesized a series of thiophenepyrimidine derivatives with various substituents in the right wing region of the structure with the aim of developing new interactions with the tolerant region I of the binding pocket of the HIV-1 non-nucleoside reverse transcriptase (NNRTI), and we evaluated their activity against a panel of mutant HIV-1 strains. All the derivatives exhibited moderate to excellent potency against wild-type (WT) HIV-1 in MT-4 cells. Among them, sulfonamide compounds 9b and 9d were single-figure-nanomolar inhibitors with EC50 values of 9.2 and 7.1 nM, respectively. Indeed, 9a and 9d were effective against the whole viral panel except RES056. Notably, both compounds showed potent antiviral activity against K103N (EC50 = 0.032 and 0.070 μM) and E138K (EC50 = 0.035 and 0.045 μM, respectively). Furthermore, 9a and 9d exhibited high affinity for WT HIV-1 RT (IC50 = 1.041 and 1.138 μM, respectively) and acted as classical NNRT inhibitors (NNRTIs). These results are expected to be helpful in the design of thiophenepyrimidine-based NNRTIs with more potent activity against HIV strains with RT mutations.
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Affiliation(s)
- Dongwei Kang
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Xiao Ding
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Gaochan Wu
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Zhipeng Huo
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Zhongxia Zhou
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Tong Zhao
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Da Feng
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Zhao Wang
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Ye Tian
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Dirk Daelemans
- Rega
Institute for Medical Research, Laboratory of Virology and Chemotherapy, K.U. Leuven, Herestraat 49 Postbus 1043 (09.A097), B-3000 Leuven, Belgium
| | - Erik De Clercq
- Rega
Institute for Medical Research, Laboratory of Virology and Chemotherapy, K.U. Leuven, Herestraat 49 Postbus 1043 (09.A097), B-3000 Leuven, Belgium
| | - Christophe Pannecouque
- Rega
Institute for Medical Research, Laboratory of Virology and Chemotherapy, K.U. Leuven, Herestraat 49 Postbus 1043 (09.A097), B-3000 Leuven, Belgium
| | - Peng Zhan
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
| | - Xinyong Liu
- Department
of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry
of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Jinan, Shandong, P. R. China
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18
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Shingare R, Kulkarni AS, Sutar RL, Reddy DS. Route to Benzimidazol-2-ones via Decarbonylative Ring Contraction of Quinoxalinediones: Application to the Synthesis of Flibanserin, A Drug for Treating Hypoactive Sexual Desire Disorder in Women and Marine Natural Product Hunanamycin Analogue. ACS OMEGA 2017; 2:5137-5141. [PMID: 30023739 PMCID: PMC6044990 DOI: 10.1021/acsomega.7b00819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 08/15/2017] [Indexed: 06/08/2023]
Abstract
A simple and practical method to access a variety of benzimidazol-2-ones is reported here. A series of N-alkyl-substituted benzimidazol-2-ones were synthesized by decarbonylative ring contraction starting from corresponding quinoxalinediones for the first time. The utility of the method has been demonstrated by synthesizing recently approved controversial drug flibanserin (Addyi) and a urea analogue of marine antibiotic natural product hunanamycin-A.
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Affiliation(s)
- Rahul
D. Shingare
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
| | - Akshay S. Kulkarni
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
| | - Revannath L. Sutar
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
| | - D. Srinivasa Reddy
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
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19
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Searching for novel N 1-substituted benzimidazol-2-ones as non-nucleoside HIV-1 RT inhibitors. Bioorg Med Chem 2017; 25:3861-3870. [PMID: 28559060 DOI: 10.1016/j.bmc.2017.05.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/09/2017] [Accepted: 05/17/2017] [Indexed: 11/21/2022]
Abstract
Non-nucleoside reverse transcriptase inhibitors (NNRTIs) represent an integral part of the currently available combination antiretroviral therapy (cART) contributing to reduce the AIDS-mortality and turned the disease from lethal to chronic. In this context we recently reported a series of 6-chloro-1-(3-methylphenylsulfonyl)-1,3-dihydro-2H-benzimidazol-2-ones as potent non-nucleoside HIV-1 reverse transcriptase inhibitors. In this paper, we describe the design and the synthesis of two novel series of benzimidazolone analogues in which the linker moiety between the phenyl ring and the sulfonyl group was modified and new small lipophilic groups on the benzyl sulfonyl pendant were introduced. All the new obtained compounds were evaluated as RT inhibitors and were also tested against RTs containing single amino acid mutations. Finally, molecular docking studies were performed in order to rationalize the observed activity of the most promising compound.
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20
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Youn SW, Kim YH. Pd(II)/Ag(I)-Promoted One-Pot Synthesis of Cyclic Ureas from (Hetero)Aromatic Amines and Isocyanates. Org Lett 2016; 18:6140-6143. [DOI: 10.1021/acs.orglett.6b03151] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- So Won Youn
- Center for New Directions
in Organic Synthesis, Department of Chemistry and Institute for Material
Design, Hanyang University, Seoul 04763, Korea
| | - Yi Hyun Kim
- Center for New Directions
in Organic Synthesis, Department of Chemistry and Institute for Material
Design, Hanyang University, Seoul 04763, Korea
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21
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Ajani OO, Aderohunmu DV, Ikpo CO, Adedapo AE, Olanrewaju IO. Functionalized Benzimidazole Scaffolds: Privileged Heterocycle for Drug Design in Therapeutic Medicine. Arch Pharm (Weinheim) 2016; 349:475-506. [PMID: 27213292 DOI: 10.1002/ardp.201500464] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 01/09/2023]
Abstract
Benzimidazole derivatives are crucial structural scaffolds found in diverse libraries of biologically active compounds which are therapeutically useful agents in drug discovery and medicinal research. They are structural isosteres of naturally occurring nucleotides, which allows them to interact with the biopolymers of living systems. Hence, there is a need to couple the latest information with the earlier documentations to understand the current status of the benzimidazole nucleus in medicinal chemistry research. This present work unveils the benzimidazole core as a multifunctional nucleus that serves as a resourceful tool of information for synthetic modifications of old existing candidates in order to tackle drug resistance bottlenecks in therapeutic medicine. This manuscript deals with the recent advances in the synthesis of benzimidazole derivatives, the widespread biological activities as well as pharmacokinetic reports. These present them as a toolbox for fighting infectious diseases and also make them excellent candidates for future drug design.
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Affiliation(s)
- Olayinka O Ajani
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Damilola V Aderohunmu
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Chinwe O Ikpo
- Department of Chemistry, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Adebusayo E Adedapo
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
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22
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Sancineto L, Mariotti A, Bagnoli L, Marini F, Desantis J, Iraci N, Santi C, Pannecouque C, Tabarrini O. Design and Synthesis of DiselenoBisBenzamides (DISeBAs) as Nucleocapsid Protein 7 (NCp7) Inhibitors with anti-HIV Activity. J Med Chem 2015; 58:9601-14. [PMID: 26613134 DOI: 10.1021/acs.jmedchem.5b01183] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The interest in the synthesis of Se-containing compounds is growing with the discovery of derivatives exhibiting various biological activities. In this manuscript, we have identified a series of 2,2'-diselenobisbenzamides (DISeBAs) as novel HIV retroviral nucleocapsid protein 7 (NCp7) inhibitors. Because of its pleiotropic functions in the whole viral life cycle and its mutation intolerant nature, NCp7 represents a target of great interest which is not reached by any anti-HIV agent in clinical use. Using the diselenobisbenzoic scaffold, amino acid, and benzenesulfonamide derivatives were prepared and biologically profiled against different models of HIV infection. The incorporation of amino acids such as glycine and glutamate into DISeBAs 7 and 8 resulted in selective anti-HIV activity against both acutely and chronically infected cells as well as an interesting virucidal effect. DISeBAs demonstrated broad antiretroviral activity, encompassing HIV-1 drug-resistant strains including clinical isolates, as well as simian immunodeficiency virus (SIV). Time of addition experiments, along with the observed dose dependent inhibition of the Gag precursor proper processing, confirmed that their mechanism of action is based on NCp7 inhibition.
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Affiliation(s)
- Luca Sancineto
- Department of Pharmaceutical Sciences, Group of Catalysis and Organic Green Chemistry, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
| | - Alice Mariotti
- Department of Pharmaceutical Sciences, Group of Catalysis and Organic Green Chemistry, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
| | - Luana Bagnoli
- Department of Pharmaceutical Sciences, Group of Catalysis and Organic Green Chemistry, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
| | - Francesca Marini
- Department of Pharmaceutical Sciences, Group of Catalysis and Organic Green Chemistry, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
| | - Jenny Desantis
- Department of Pharmaceutical Sciences, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
| | - Nunzio Iraci
- Department of Pharmaceutical Sciences, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
| | - Claudio Santi
- Department of Pharmaceutical Sciences, Group of Catalysis and Organic Green Chemistry, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
| | - Christophe Pannecouque
- Department of Microbiology and Immunology, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, KU Leuven , B-3000 Leuven, Belgium
| | - Oriana Tabarrini
- Department of Pharmaceutical Sciences, University of Perugia , Via del Liceo 1, Perugia 06100, Italy
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23
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Andreoli F, Kaid-Slimane R, Coppola F, Farran D, Roussel C, Vanthuyne N. Access to N-Thioalkenyl and N-(o-Thio)aryl-benzimidazol-2-ones by Ring Opening of Thiazolobenzimidazolium and Benzimidazobenzothiazolium Salts and C–O Bond Cleavage of an Alkoxide. J Org Chem 2015; 80:3233-41. [DOI: 10.1021/acs.joc.5b00221] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Federico Andreoli
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Radia Kaid-Slimane
- Laboratoire
de synthèse organique appliquée, Département
de Chimie, Faculté des Sciences, Université d’Oran (Es Sénia), B.P. 1524, El M’naouer
Oran, Algérie
| | - Fabien Coppola
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Daniel Farran
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Christian Roussel
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
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24
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Mamedov VA, Zhukova NA, Zamaletdinova AI, Beschastnova TN, Kadyrova MS, Rizvanov IK, Syakaev VV, Latypov SK. Reaction for the synthesis of benzimidazol-2-ones, imidazo[5,4-b]-, and imidazo[4,5-c]pyridin-2-ones via the rearrangement of quinoxalin-2-ones and their aza analogues when exposed to enamines. J Org Chem 2014; 79:9161-9. [PMID: 25203611 DOI: 10.1021/jo501526a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A synthetically useful protocol has been developed for the preparation of highly functionalized N-pyrrolylbenzimidazol-2-ones. The reaction of variously substituted 3-aroyl- and 3-alkanoylquinoxalin-2(1H)-ones with commercially available enamines in acetic acid results in a rapid rearrangement and formation of N-pyrrolylbenzimidazol-2-ones in modest to excellent yields. The key step of the rearrangement involves the novel ring contraction of 3-aroyl- and 3-alkanoylquinoxalin-2(1H)-ones with enamines. In this case, the atom of carbon which is displaced from the pyrazine ring of quinoxalin-2(1H)-one becomes the fourth carbon atom of the newly formed pyrrole ring. The method is applicable for the aza analogues of quinoxalin-2(1H)-ones.
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Affiliation(s)
- Vakhid A Mamedov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences , Arbuzov str. 8, Kazan 420088, Russian Federation
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25
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Sancineto L, Iraci N, Barreca ML, Massari S, Manfroni G, Corazza G, Cecchetti V, Marcello A, Daelemans D, Pannecouque C, Tabarrini O. Exploiting the anti-HIV 6-desfluoroquinolones to design multiple ligands. Bioorg Med Chem 2014; 22:4658-66. [PMID: 25127466 DOI: 10.1016/j.bmc.2014.07.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/10/2014] [Accepted: 07/14/2014] [Indexed: 10/25/2022]
Abstract
It is getting clearer that many drugs effective in different therapeutic areas act on multiple rather than single targets. The application of polypharmacology concepts might have numerous advantages especially for disease such as HIV/AIDS, where the rapid emergence of resistance requires a complex combination of more than one drug. In this paper, we have designed three hybrid molecules combining WM5, a quinolone derivative we previously identified as HIV Tat-mediated transcription (TMT) inhibitor, with the tricyclic core of nevirapine and BILR 355BS (BILR) non-nucleoside reverse transcriptase inhibitors (NNRTIs) to investigate whether it could be possible to obtain molecules acting on both transcription steps of the HIV replicative cycle. One among the three designed multiple ligands, reached this goal. Indeed, compound 1 inhibited both TMT and reverse transcriptase (RT) activity. Unexpectedly, while the anti-TMT activity exerted by compound 1 resulted into a selective inhibition of HIV-1 reactivation from latently infected OM10.1 cells, the anti-RT properties shown by all of the synthesized compounds did not translate into an anti-HIV activity in acutely infected cells. Thus, we have herein produced the proof of concept that the design of dual TMT-RT inhibitors is indeed possible, but optimization efforts are needed to obtain more potent derivatives.
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Affiliation(s)
- Luca Sancineto
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Nunzio Iraci
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Maria Letizia Barreca
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Serena Massari
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Giuseppe Manfroni
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Gianmarco Corazza
- Laboratory of Molecular Virology, International Centre for Genetic Engineering and Biotechnology (ICGEB), Padriciano 99, 34149 Trieste, Italy
| | - Violetta Cecchetti
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Alessandro Marcello
- Laboratory of Molecular Virology, International Centre for Genetic Engineering and Biotechnology (ICGEB), Padriciano 99, 34149 Trieste, Italy
| | - Dirk Daelemans
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
| | - Christophe Pannecouque
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
| | - Oriana Tabarrini
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy.
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26
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Ernst JB, Tay NES, Jui NT, Buchwald SL. Regioselective synthesis of benzimidazolones via cascade C-N coupling of monosubstituted ureas. Org Lett 2014; 16:3844-6. [PMID: 24971635 PMCID: PMC4216194 DOI: 10.1021/ol501531q] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
![]()
A direct
method for the regioselective construction of benzimidazolones
is reported wherein a single palladium catalyst is employed to couple
monosubstituted urea substrates with differentially substituted 1,2-dihaloaromatic
systems. In this method, the catalyst is able to promote a cascade
of two discrete chemoselective C–N bond-forming processes that
allows the highly selective and predictable formation of complex heterocycles
from simple, readily available starting materials.
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Affiliation(s)
- Johannes B Ernst
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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27
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28
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Monforte AM, Ferro S, De Luca L, Lo Surdo G, Morreale F, Pannecouque C, Balzarini J, Chimirri A. Design and synthesis of N1-aryl-benzimidazoles 2-substituted as novel HIV-1 non-nucleoside reverse transcriptase inhibitors. Bioorg Med Chem 2014; 22:1459-67. [DOI: 10.1016/j.bmc.2013.12.045] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/11/2013] [Accepted: 12/17/2013] [Indexed: 11/17/2022]
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29
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Patra CR, Rupasinghe CN, Dutta SK, Bhattacharya S, Wang E, Spaller MR, Mukhopadhyay D. Chemically modified peptides targeting the PDZ domain of GIPC as a therapeutic approach for cancer. ACS Chem Biol 2012; 7:770-9. [PMID: 22292614 DOI: 10.1021/cb200536r] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
GIPC (GAIP-interacting protein, C terminus) represents a new target class for the discovery of chemotherapeutics. While many of the current generation of anticancer agents function by directly binding to intracellular kinases or cell surface receptors, the disruption of cytosolic protein-protein interactions mediated by non-enzymatic domains is an underdeveloped avenue for inhibiting cancer growth. One such example is the PDZ domain of GIPC. Previously we developed a molecular probe, the cell-permeable octapeptide CR1023 (N-myristoyl-PSQSSSEA), which diminished proliferation of pancreatic cancer cells. We have expanded upon that discovery using a chemical modification approach and here report a series of cell-permeable, side chain-modified lipopeptides that target the GIPC PDZ domain in vitro and in vivo. These peptides exhibit significant activity against pancreatic and breast cancers, both in cellular and animal models. CR1166 (N-myristoyl-PSQSK(εN-4-bromobenzoyl)SK(εN-4-bromobenzoyl)A), bearing two halogenated aromatic units on alternate side chains, was found to be the most active compound, with pronounced down-regulation of EGFR/1GF-1R expression. We hypothesize that these organic acid-modified residues extend the productive reach of the peptide beyond the canonical binding pocket, which defines the limit of accessibility for the native proteinogenic sequences that the PDZ domain has evolved to recognize. Cell permeability is achieved with N-terminal lipidation using myristate, rather than a larger CPP (cell-penetrating peptide) sequence. This, in conjunction with optimization of targeting through side chain modification, has yielded an approach that will allow the discovery and development of next-generation cellular probes for GIPC PDZ as well as for other PDZ domains.
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Affiliation(s)
- Chitta Ranjan Patra
- Department of Chemical Biology, Indian Institute of Chemical Technology, Uppal Road,
Tarnaka, Hyderabad-500607, AP, India
| | - Chamila N. Rupasinghe
- Department of Pharmacology
and
Toxicology, Dartmouth Medical School and Norris Cotton Cancer Center, Lebanon, New Hampshire, United States
| | | | | | | | - Mark R. Spaller
- Department of Pharmacology
and
Toxicology, Dartmouth Medical School and Norris Cotton Cancer Center, Lebanon, New Hampshire, United States
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30
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Pitta E, Geronikaki A, Surmava S, Eleftheriou P, Mehta VP, Van der Eycken EV. Synthesis and HIV-1 RT inhibitory action of novel (4/6-substituted benzo[d]thiazol -2-yl)thiazolidin-4-ones. Divergence from the non-competitive inhibition mechanism. J Enzyme Inhib Med Chem 2012; 28:113-22. [PMID: 22380777 DOI: 10.3109/14756366.2011.636362] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Reverse transcriptase (RT) inhibitors play a major role in the therapy of human immunodeficiency virus type 1 (HIV-1) infection. Although, many compounds are already used as anti-HIV drugs, research on development of novel inhibitors continues, since drug resistant strains appear because of prolonged therapy. In this paper, we present the synthesis and evaluation of HIV-1 RT inhibitory action of eighteen novel (4/6-halogen/MeO/EtO-substituted benzo[d]thiazol-2-yl)thiazolidin-4-ones. The two more active compounds (IC50 : 0.04 µM and 0.25 µM) exhibited better inhibitory action than the reference compound, nevirapine. Docking analysis supports a stable binding of the most active derivative to the allosteric centre of RT. Kinetic analysis of two of the most active compounds indicate an uncompetitive inhibition mode. This is a desired characteristic, since mutations that affect activity of traditional non-competitive NNRTIs may not affect activity of compounds of this series. Interestingly, the less active derivatives (IC50 > 40 µM) exhibit a competitive mode of action.
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Affiliation(s)
- Eleni Pitta
- Department of Medicinal Chemistry, School of Pharmacy, Aristotle University of Thessaloniki, Greece
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31
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Beyer A, Reucher CMM, Bolm C. Potassium hydroxide/dimethyl sulfoxide promoted intramolecular cyclization for the synthesis of benzimidazol-2-ones. Org Lett 2011; 13:2876-9. [PMID: 21534616 DOI: 10.1021/ol2008878] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new protocol for intramolecular N-arylations of ureas to form benzimidazol-2-ones has been developed. The cyclization reaction occurs in the presence of KOH and DMSO at close to ambient temperature. Under these conditions the yields are high and a wide range of functional groups are tolerated.
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Affiliation(s)
- Astrid Beyer
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
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32
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Kumar S, Singh V, Tiwari M. QSAR modeling of the inhibition of reverse transcriptase enzyme with benzimidazolone analogs. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9406-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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33
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Ferro S, Luca LD, Barreca ML, Grazia SD, Christ F, Debyser Z, Chimirri A. New chloro,fluorobenzylindole derivatives as integrase strand-transfer inhibitors (INSTIs) and their mode of action. Bioorg Med Chem 2010; 18:5510-8. [DOI: 10.1016/j.bmc.2010.06.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Revised: 06/11/2010] [Accepted: 06/16/2010] [Indexed: 11/30/2022]
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34
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Samuele A, Crespan E, Vitellaro S, Monforte AM, Logoteta P, Chimirri A, Maga G. Slow binding–tight binding interaction between benzimidazol-2-one inhibitors and HIV-1 reverse transcriptase containing the lysine 103 to asparagine mutation. Antiviral Res 2010; 86:268-75. [DOI: 10.1016/j.antiviral.2010.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 03/09/2010] [Accepted: 03/12/2010] [Indexed: 10/19/2022]
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35
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Monforte AM, Logoteta P, De Luca L, Iraci N, Ferro S, Maga G, De Clercq E, Pannecouque C, Chimirri A. Novel 1,3-dihydro-benzimidazol-2-ones and their analogues as potent non-nucleoside HIV-1 reverse transcriptase inhibitors. Bioorg Med Chem 2010; 18:1702-10. [PMID: 20097079 DOI: 10.1016/j.bmc.2009.12.059] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Revised: 12/18/2009] [Accepted: 12/23/2009] [Indexed: 10/20/2022]
Abstract
A series of novel benzimidazolones and their analogues, characterized by the presence of one or more methyl groups or other bioisosteric moieties at different positions of the phenyl ring at N-1, were synthesized and evaluated as inhibitors of human immunodeficiency virus type-1 (HIV-1). Most of the new compounds proved to be highly effective in inhibiting both HIV-1 replication in MT4 cells with minimal cytotoxicity and RT enzyme at nanomolar concentrations. Some derivatives were also tested against RTs containing single amino acid mutations responsible for resistance to non-nucleoside reverse transcriptase inhibitors (NNRTIs). The different potencies displayed by the new compounds were studied using molecular modeling.
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Affiliation(s)
- Anna-Maria Monforte
- Dipartimento Farmaco-Chimico, Università di Messina, Viale Annunziata, 98168 Messina, Italy.
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