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Synthesis of heterocycles by utilizing phthalaldehydic acid: An overview. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Serusi L, Palombi L, Pierri G, Mola AD, Massa A. Asymmetric Cascade Aza-Henry/Lactamization Reaction in the Highly Enantioselective Organocatalytic Synthesis of 3-(Nitromethyl)isoindolin-1-ones from α-Amido Sulfones. J Org Chem 2022; 87:8420-8428. [PMID: 35699594 PMCID: PMC9490826 DOI: 10.1021/acs.joc.2c00518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
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The asymmetric synthesis
of novel 3-substituted isoindolinones
is herein reported. A new cascade reaction was developed that consisted
of the asymmetric nitro-Mannich reaction of suitable α-amido
sulfones designed from 2-formyl benzoates, followed by the in situ cyclization of the adducts. Very high enantioselectivities,
up to 98% ee, and very good yields were obtained in the presence of
the readily available neutral bifunctional organocatalyst derived
from trans-1,2-diaminocyclohexane, which is known
as Takemoto’s catalyst. The investigation of the reactivity
of the obtained products allowed either the selective Boc-deprotection
or reduction of the nitro group, leading to further functionalized
3-substituted isoindolinones without affecting the enantiomeric purity.
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Affiliation(s)
- Lorenzo Serusi
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
| | - Laura Palombi
- Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, Via Vetoio, Coppito, L'Aquila 10-67100, Italy
| | - Giovanni Pierri
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
| | - Antonia Di Mola
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
| | - Antonio Massa
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
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3
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Essential Oils from Bolivia. XV. Herzogole, an Original Monoterpene Benzodioxole from an Essential Oil from Pentacalia herzogii (Cabrera) Cuatrec. Molecules 2021; 26:molecules26195766. [PMID: 34641307 PMCID: PMC8510058 DOI: 10.3390/molecules26195766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022] Open
Abstract
Over 15 years, with the support of a Canadian funding agency, the Universidad Mayor de San Simón, in Bolivia, undertook a large survey of aromatic plants of the South American country. More than a hundred species were studied under various aspects, including the production and characterization of essential oils. As part of this survey, the chemical composition of an essential oil sample obtained from Pentacalia herzogii (Asteraceae) growing wild in the High Valley region of the department of Cochabamba was determined by a combination of GC and GC-MS measurements. α-Pinene was the main constituent of this essential oil (34%), accompanied by limonene (22%) and germacrene D (7.5%) as well as an important fraction of methoxylated monoterpenoids. They were mainly isomers of thymol methyl ether, accounting for 13% of the chromatogram. A new quantitatively important compound (9%) was identified through NMR and chemical synthesis as 4-isopropyl-6-methylbenzo[d][1,3]dioxole, and designated herzogole, alongside the minor related compound 1-isopropyl-2,3-dimethoxy-5-methylbenzene. The monoterpene benzodioxole featured a distinctive green-phenolic aroma which could raise interest for fragrance use. Since these compounds were not known naturally, a biosynthetic mechanism of their formation was proposed and put in perspective to illustrate the metabolic originality of P. herzogii.
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Serusi L, Massa A, Tedesco C, Capobianco A, Palombi L. The First Highly Enantioselective Synthesis of 3-Sulfinyl-Substituted Isoindolinones Having Adjacent Carbon and Sulfur Stereocenters. J Org Chem 2021; 86:10630-10639. [PMID: 34255964 DOI: 10.1021/acs.joc.1c01300] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A highly stereoselective access to 3-sulfinyl-substituted isoindolinones has been achieved by a tandem organocatalytic addition/cyclization reaction of 2-carbobenzyloxy-N-tosylbenzylidenimine with thiols and succeeding diastereoselective oxidation with MCPBA. First, enantioenriched isoindolinone N,S-acetals have been obtained through a dynamic kinetic asymmetric transformation induced by a bifunctional chiral thiourea organocatalyst. In turn, the newly created carbon stereocenter enabled a high diastereocontrol in the subsequent sulfoxidation. Based on DFT calculations, a theoretical rationale for the stereoselectivity of the oxidation reaction is also provided.
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Affiliation(s)
- Lorenzo Serusi
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Antonio Massa
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Consiglia Tedesco
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Amedeo Capobianco
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Laura Palombi
- Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, Via Vetoio, L'Aquila 10-67100, Italy
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Upadhyay SP, Thapa P, Sharma R, Sharma M. 1-Isoindolinone scaffold-based natural products with a promising diverse bioactivity. Fitoterapia 2020; 146:104722. [PMID: 32920034 DOI: 10.1016/j.fitote.2020.104722] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/03/2020] [Accepted: 09/05/2020] [Indexed: 12/21/2022]
Abstract
Isoindolin-1-one or 1-isoindolinone framework is referred to phthalimidines or benzo fused γ-lactams of the corresponding γ-amino carboxylic acids and has been of prime interest for scientists for last several decades. 1-Isoindolinone framework is found in a wide range of naturally occurring compounds with diverse biological activities and therapeutic potential for various chronic diseases. Recent developments in synthetic methods for their procurement have opened a new era of 1-isoindolinone chemistry. This review aims to provide an alphabetical quick reference guide to only 1-isoindolinone based natural products and its variable fused, oxidized and reduced state skeleton with information for advanced chemotaxonomic analyses, cellular targets/pathways and diverse biological activities and future use for medicinal chemistry.
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Affiliation(s)
- Sunil P Upadhyay
- Drug Discovery Program, KCVA Medical Center, Midwest Veterans' Biomedical Research Foundation, Kansas City, MO 64128, United States.
| | - Pritam Thapa
- Drug Discovery Program, KCVA Medical Center, Midwest Veterans' Biomedical Research Foundation, Kansas City, MO 64128, United States
| | - Ram Sharma
- Drug Discovery Program, KCVA Medical Center, Midwest Veterans' Biomedical Research Foundation, Kansas City, MO 64128, United States
| | - Mukut Sharma
- Drug Discovery Program, KCVA Medical Center, Midwest Veterans' Biomedical Research Foundation, Kansas City, MO 64128, United States
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6
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Zhang X, Niu W, Tang T, Hou C, Guo Y, Kong R. A Strategy to Find Novel Candidate DKAs Inhibitors Using Modified QSAR Model with Favorable Druggability Properties. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-9183-5] [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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Jing L, Yu X, Guan M, Wu X, Wang Q, Wu Y. An Efficient Method for Sulfonylation of Amines, Alcohols and Phenols with N-Fluorobenzenesulfonimide Under Mild Conditions. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7305-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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8
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Varadarajan J, McWilliams MJ, Mott BT, Thomas CJ, Smith SJ, Hughes SH. Drug resistant integrase mutants cause aberrant HIV integrations. Retrovirology 2016; 13:71. [PMID: 27682062 PMCID: PMC5041404 DOI: 10.1186/s12977-016-0305-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 09/19/2016] [Indexed: 12/21/2022] Open
Abstract
Background
HIV-1 integrase is the target for three FDA-approved drugs, raltegravir, elvitegravir, and dolutegravir. All three drugs bind at the active site of integrase and block the strand transfer step of integration. We previously showed that sub-optimal doses of the anti-HIV drug raltegravir can cause aberrant HIV integrations that are accompanied by a variety of deletions, duplications, insertions and inversions of the adjacent host sequences. Results We show here that a second drug, elvitegravir, also causes similar aberrant integrations. More importantly, we show that at least two of the three clinically relevant drug resistant integrase mutants we tested, N155H and G140S/Q148H, which reduce the enzymatic activity of integrase, can cause the same sorts of aberrant integrations, even in the absence of drugs. In addition, these drug resistant mutants have an elevated IC50 for anti-integrase drugs, and concentrations of the drugs that would be optimal against the WT virus are suboptimal for the mutants. Conclusions We previously showed that suboptimal doses of a drug that binds to the HIV enzyme integrase and blocks the integration of a DNA copy of the viral genome into host DNA can cause aberrant integrations that involve rearrangements of the host DNA. We show here that suboptimal doses of a second anti-integrase drug can cause similar aberrant integrations. We also show that drug-resistance mutations in HIV integrase can also cause aberrant integrations, even in the absence of an anti-integrase drug. HIV DNA integrations in the oncogenes BACH2 and MKL2 that do not involve rearrangements of the viral or host DNA can stimulate the proliferation of infected cells. Based on what is known about the association of DNA rearrangements and the activation of oncogenes in human tumors, it is possible that some of the deletions, duplications, insertions, and inversions of the host DNA that accompany aberrant HIV DNA integrations could increase the chances that HIV integrations could lead to the development of a tumor. Electronic supplementary material The online version of this article (doi:10.1186/s12977-016-0305-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Janani Varadarajan
- HIV Dynamics and Replication Program, Vector Design and Replication Section, National Cancer Institute-Frederick, 1050 Boyles Street, Bldg. 539, Room 130A, Frederick, MD, 21702, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Mary Jane McWilliams
- HIV Dynamics and Replication Program, Vector Design and Replication Section, National Cancer Institute-Frederick, 1050 Boyles Street, Bldg. 539, Room 130A, Frederick, MD, 21702, USA
| | - Bryan T Mott
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Craig J Thomas
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Steven J Smith
- HIV Dynamics and Replication Program, Vector Design and Replication Section, National Cancer Institute-Frederick, 1050 Boyles Street, Bldg. 539, Room 130A, Frederick, MD, 21702, USA
| | - Stephen H Hughes
- HIV Dynamics and Replication Program, Vector Design and Replication Section, National Cancer Institute-Frederick, 1050 Boyles Street, Bldg. 539, Room 130A, Frederick, MD, 21702, USA.
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Zhao XZ, Metifiot M, Smith SJ, Maddali K, Marchand C, Hughes SH, Pommier Y, Burke TR. 6,7-Dihydroxyisoindolin-1-one and 7,8-Dihydroxy-3,4-Dihydroisoquinolin- 1(2H)-one Based HIV-1 Integrase Inhibitors. Curr Top Med Chem 2016; 16:435-40. [PMID: 26268341 DOI: 10.2174/1568026615666150813150058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 04/03/2015] [Accepted: 04/05/2015] [Indexed: 11/22/2022]
Abstract
Integrase (IN) is an essential viral enzyme required for HIV-1 replication, which has been targeted by anti-AIDS therapeutics. Integrase strand transfer inhibitors (INSTIs) represent a new class of antiretroviral agents developed for the treatment of HIV-1 infections. Important structural features that are shared by many INSTIs include a coplanar arrangement of three heteroatoms that chelate two catalytic Mg(2+) ions in the IN active site and a linked halophenyl ring that binds in the hydrophobic pocket formed by the complex of IN with viral DNA. We recently reported bicyclic 6,7-dihydroxyoxoisoindolin-1-one-based IN inhibitors. In the current study, we modified these inhibitors in three ways. First, we increased the spacer length between the metalchelating triad and the halophenyl group. Second, we replaced the indoline [5,6] bicycle with a fused dihydroxyisoquinolinones [6,6] ring system. Finally, we prepared bis-6,7-dihydroxyisoindolin-1-one-4-sulfonamides as dimeric HIV-1 IN inhibitors. These new analogues showed low micromolar inhibitory potency in in vitro HIV-1 integrase assays.
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Affiliation(s)
- Xue Zhi Zhao
- Chemical Biology Laboratory, National Cancer Institute-Frederick, National Institutes of Health, Frederick, MD 21702, USA.
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10
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Métifiot M, Johnson BC, Kiselev E, Marler L, Zhao XZ, Burke TR, Marchand C, Hughes SH, Pommier Y. Selectivity for strand-transfer over 3'-processing and susceptibility to clinical resistance of HIV-1 integrase inhibitors are driven by key enzyme-DNA interactions in the active site. Nucleic Acids Res 2016; 44:6896-906. [PMID: 27369381 PMCID: PMC5001616 DOI: 10.1093/nar/gkw592] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 06/21/2016] [Indexed: 12/23/2022] Open
Abstract
Integrase strand transfer inhibitors (INSTIs) are highly effective against HIV infections. Co-crystal structures of the prototype foamy virus intasome have shown that all three FDA-approved drugs, raltegravir (RAL), elvitegravir and dolutegravir (DTG), act as interfacial inhibitors during the strand transfer (ST) integration step. However, these structures give only a partial sense for the limited inhibition of the 3′-processing reaction by INSTIs and how INSTIs can be modified to overcome drug resistance, notably against the G140S-Q148H double mutation. Based on biochemical experiments with modified oligonucleotides, we demonstrate that both the viral DNA +1 and −1 bases, which flank the 3′-processing site, play a critical role for 3′-processing efficiency and inhibition by RAL and DTG. In addition, the G140S-Q148H (SH) mutant integrase, which has a reduced 3′-processing activity, becomes more active and more resistant to inhibition of 3′-processing by RAL and DTG in the absence of the −1 and +1 bases. Molecular modeling of HIV-1 integrase, together with biochemical data, indicate that the conserved residue Q146 in the flexible loop of HIV-1 integrase is critical for productive viral DNA binding through specific contacts with the virus DNA ends in the 3′-processing and ST reactions. The potency of integrase inhibitors against 3′-processing and their ability to overcome resistance is discussed.
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Affiliation(s)
- Mathieu Métifiot
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, MD 20892, USA
| | - Barry C Johnson
- HIV Dynamics and Replication Program, National Cancer Institute at Frederick, Center for Cancer Research, National Institutes of Health, Frederick, MD 21702, USA
| | - Evgeny Kiselev
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, MD 20892, USA
| | - Laura Marler
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, MD 20892, USA
| | - Xue Zhi Zhao
- Chemical Biology Laboratory, National Cancer Institute at Frederick, Center for Cancer Research, National Institutes of Health, Frederick, MD 21702, USA
| | - Terrence R Burke
- Chemical Biology Laboratory, National Cancer Institute at Frederick, Center for Cancer Research, National Institutes of Health, Frederick, MD 21702, USA
| | - Christophe Marchand
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, MD 20892, USA
| | - Stephen H Hughes
- HIV Dynamics and Replication Program, National Cancer Institute at Frederick, Center for Cancer Research, National Institutes of Health, Frederick, MD 21702, USA
| | - Yves Pommier
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, MD 20892, USA
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Jiang X, Gandelman M. Enantioselective Suzuki Cross-Couplings of Unactivated 1-Fluoro-1-haloalkanes: Synthesis of Chiral β-, γ-, δ-, and ε-Fluoroalkanes. J Am Chem Soc 2015; 137:2542-7. [DOI: 10.1021/jacs.5b00473] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaojian Jiang
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion
City, Haifa 32000, Israel
| | - Mark Gandelman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion
City, Haifa 32000, Israel
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12
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Conformational restriction: an effective tactic in 'follow-on'-based drug discovery. Future Med Chem 2015; 6:885-901. [PMID: 24962281 DOI: 10.4155/fmc.14.50] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The conformational restriction (rigidification) of a flexible ligand has often been a commonly used strategy in drug design, as it can minimize the entropic loss associated with the ligand adopting a preferred conformation for binding, which leads to enhanced potency for a given physiological target, improved selectivity for isoforms and reduced the possibility of drug metabolism. Therefore, the application of conformational restriction strategy is a core aspect of drug discovery and development that is widely practiced by medicinal chemists either deliberately or subliminally. The present review will highlight current representative examples and a brief overview on the rational design of conformationally restricted agents as well as discuss its advantages over the flexible counterparts.
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Deeming AS, Russell CJ, Willis MC. Combining organometallic reagents, the sulfur dioxide surrogate DABSO, and amines: a one-pot preparation of sulfonamides, amenable to array synthesis. Angew Chem Int Ed Engl 2015; 54:1168-71. [PMID: 25431118 PMCID: PMC4312890 DOI: 10.1002/anie.201409283] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 11/05/2014] [Indexed: 01/07/2023]
Abstract
We describe a method for the synthesis of sulfonamides through the combination of an organometallic reagent, a sulfur dioxide equivalent, and an aqueous solution of an amine under oxidative conditions (bleach). This simple reaction protocol avoids the need to employ sulfonyl chloride substrates, thus removing the limitation imposed by the commercial availability of these reagents. The resultant method allows access to new chemical space, and is also tolerant of the polar functional groups needed to impart favorable physiochemical properties required for medicinal chemistry and agrochemistry. The developed chemistry is employed in the synthesis of a targeted 70 compound array, prepared using automated methods. The array achieved a 93% success rate for compounds prepared. Calculated molecular weights, lipophilicities, and polar surface areas are presented, demonstrating the utility of the method for delivering sulfonamides with drug-like properties.
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Affiliation(s)
- Alex S Deeming
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA (UK) http://mcwillis.chem.ox.ac.uk/MCW/Home.html
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14
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Deeming AS, Russell CJ, Willis MC. Combining Organometallic Reagents, the Sulfur Dioxide Surrogate DABSO, and Amines: A One-Pot Preparation of Sulfonamides, Amenable to Array Synthesis. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409283] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Synthesis and evaluation of novel oxoisoindoline derivatives as acetylcholinesterase inhibitors. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1334-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Yalcouye B, Choppin S, Panossian A, Leroux FR, Colobert F. A Concise Atroposelective Formal Synthesis of (-)-Steganone. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402761] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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17
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Reddy KK, Singh SK. Combined ligand and structure-based approaches on HIV-1 integrase strand transfer inhibitors. Chem Biol Interact 2014; 218:71-81. [DOI: 10.1016/j.cbi.2014.04.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 04/11/2014] [Accepted: 04/16/2014] [Indexed: 11/25/2022]
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18
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Almeida C, Ortega H, Higginbotham S, Spadafora C, Arnold A, Coley P, Kursar T, Gerwick W, Cubilla-Rios L. Chemical and bioactive natural products from Microthyriaceae sp., an endophytic fungus from a tropical grass. Lett Appl Microbiol 2014; 59:58-64. [DOI: 10.1111/lam.12245] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 02/21/2014] [Accepted: 03/04/2014] [Indexed: 11/28/2022]
Affiliation(s)
- C. Almeida
- Laboratory of Tropical Bioorganic Chemistry; Faculty of Natural Exact Sciences and Technology; University of Panama; Panama City Republic of Panama
- Smithsonian Tropical Research Institute; Balboa Panama City Republic of Panama
- Centro de Biodiversidade; Genómica Integrativa e Funcional (BioFIG); Universidade de Lisboa; Faculdade de Ciências; Edifício ICAT/TecLabs; Campus da FCUL; Campo Grande; Lisboa Portugal
| | - H. Ortega
- Laboratory of Tropical Bioorganic Chemistry; Faculty of Natural Exact Sciences and Technology; University of Panama; Panama City Republic of Panama
- Smithsonian Tropical Research Institute; Balboa Panama City Republic of Panama
| | - S. Higginbotham
- Smithsonian Tropical Research Institute; Balboa Panama City Republic of Panama
| | - C. Spadafora
- Institute for Advanced Scientific Investigation and High Technology Services; National Secretariat of Science; Technology, and Innovation; City of Knowledge; Panama City Republic of Panama
| | - A.E. Arnold
- School of Plant Sciences; The University of Arizona; Tucson AZ USA
| | - P.D. Coley
- Smithsonian Tropical Research Institute; Balboa Panama City Republic of Panama
- Department of Biology; University of Utah; Salt Lake City UT USA
| | - T.A. Kursar
- Smithsonian Tropical Research Institute; Balboa Panama City Republic of Panama
- Department of Biology; University of Utah; Salt Lake City UT USA
| | - W.H. Gerwick
- Center for Marine Biotechnology and Biomedicine; Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences; University of California San Diego; La Jolla CA USA
| | - L. Cubilla-Rios
- Laboratory of Tropical Bioorganic Chemistry; Faculty of Natural Exact Sciences and Technology; University of Panama; Panama City Republic of Panama
- Smithsonian Tropical Research Institute; Balboa Panama City Republic of Panama
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Zhao XZ, Smith SJ, Métifiot M, Johnson BC, Marchand C, Pommier Y, Hughes SH, Burke TR. Bicyclic 1-hydroxy-2-oxo-1,2-dihydropyridine-3-carboxamide-containing HIV-1 integrase inhibitors having high antiviral potency against cells harboring raltegravir-resistant integrase mutants. J Med Chem 2014; 57:1573-82. [PMID: 24471816 PMCID: PMC3983366 DOI: 10.1021/jm401902n] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
![]()
Integrase
(IN) inhibitors are the newest class of antiretroviral
agents developed for the treatment of HIV-1 infections. Merck’s
Raltegravir (RAL) (October 2007) and Gilead’s Elvitegravir
(EVG) (August 2012), which act as IN strand transfer inhibitors (INSTIs),
were the first anti-IN drugs to be approved by the FDA. However, the
virus develops resistance to both RAL and EVG, and there is extensive
cross-resistance to these two drugs. New “2nd-generation”
INSTIs are needed that will have greater efficacy against RAL- and
EVG-resistant strains of IN. The FDA has recently approved the first
second generation INSTI, GSK’s Dolutegravir (DTG) (August 2013).
Our current article describes the design, synthesis, and evaluation
of a series of 1,8-dihydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamides,
1,4-dihydroxy-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamides,
and 1-hydroxy-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamides.
This resulted in the identification of noncytotoxic inhibitors that
exhibited single digit nanomolar EC50 values against HIV-1
vectors harboring wild-type IN in cell-based assays. Importantly,
some of these new inhibitors retain greater antiviral efficacy compared
to that of RAL when tested against a panel of IN mutants that included
Y143R, N155H, G140S/Q148H, G118R, and E138K/Q148K.
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Affiliation(s)
- Xue Zhi Zhao
- Chemical Biology Laboratory, National Cancer Institute-Frederick, National Institutes of Health , Frederick, Maryland 21702, United States
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Esposito F, Tramontano E. Past and future. Current drugs targeting HIV-1 integrase and reverse transcriptase-associated ribonuclease H activity: single and dual active site inhibitors. Antivir Chem Chemother 2014; 23:129-44. [PMID: 24150519 DOI: 10.3851/imp2690] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2013] [Indexed: 02/07/2023] Open
Abstract
Catalytic HIV type-1 (HIV-1) integrase (IN) and ribonuclease H (RNase H) domains belong to the polynucleotidyl transferase superfamily and are characterized by highly conserved motifs that coordinate two divalent Mg(2+) cations and are attractive targets for new antiviral agents. Several structural features of both domains are now available. Drugs targeting the HIV-1 IN are currently approved for anti-HIV therapy, while no drug targeting the HIV-1 RNase H function is yet available. This review describes HIV-1 IN and the RNase H function and structures, compounds targeting their active sites and dual inhibition as a new approach for drug development.
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Affiliation(s)
- Francesca Esposito
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, Monserrato, Italy
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