1
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Zaitseva E, Smirnov A, Timashev V, Malyshev W, Zhigileva E, Mikhaylov A, Medvedev M, Baleeva N, Baranov MS. BF3 mediated [1,5]‐Hydride Shift Triggered Cyclization: Thioethers Join the Game. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200547] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elvira Zaitseva
- IBCh RAS: FBGUN Institut bioorganiceskoj himii im akademikov M M Semakina i U A Ovcinnikova Rossijskoj akademii nauk Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Alexander Smirnov
- IBCh RAS: FBGUN Institut bioorganiceskoj himii im akademikov M M Semakina i U A Ovcinnikova Rossijskoj akademii nauk Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Vladimir Timashev
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Wadim Malyshev
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Ekaterina Zhigileva
- IBCh RAS: FBGUN Institut bioorganiceskoj himii im akademikov M M Semakina i U A Ovcinnikova Rossijskoj akademii nauk Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Andrey Mikhaylov
- IBCh RAS: FBGUN Institut bioorganiceskoj himii im akademikov M M Semakina i U A Ovcinnikova Rossijskoj akademii nauk Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Michael Medvedev
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Nadezhda Baleeva
- IBCh RAS: FBGUN Institut bioorganiceskoj himii im akademikov M M Semakina i U A Ovcinnikova Rossijskoj akademii nauk Department of Chemistry Moskva RUSSIAN FEDERATION
| | - Mikhail S. Baranov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences Group of chemistry of heterocyclic compounds Ulitsa Miklukho-Maklaya, 16/10 117997 Moscow RUSSIAN FEDERATION
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2
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Govender P, Müller R, Singh K, Reddy V, Eyermann CJ, Fienberg S, Ghorpade SR, Koekemoer L, Myrick A, Schnappinger D, Engelhart C, Meshanni J, Byl JAW, Osheroff N, Singh V, Chibale K, Basarab GS. Spiropyrimidinetrione DNA Gyrase Inhibitors with Potent and Selective Antituberculosis Activity. J Med Chem 2022; 65:6903-6925. [PMID: 35500229 DOI: 10.1021/acs.jmedchem.2c00266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New antibiotics with either a novel mode of action or novel mode of inhibition are urgently needed to overcome the threat of drug-resistant tuberculosis (TB). The present study profiles new spiropyrimidinetriones (SPTs), DNA gyrase inhibitors having activity against drug-resistant Mycobacterium tuberculosis (Mtb), the causative agent of TB. While the clinical candidate zoliflodacin has progressed to phase 3 trials for the treatment of gonorrhea, compounds herein demonstrated higher inhibitory potency against Mtb DNA gyrase (e.g., compound 42 with IC50 = 2.0) and lower Mtb minimum inhibitor concentrations (0.49 μM for 42). Notably, 42 and analogues showed selective Mtb activity relative to representative Gram-positive and Gram-negative bacteria. DNA gyrase inhibition was shown to involve stabilization of double-cleaved DNA, while on-target activity was supported by hypersensitivity against a gyrA hypomorph. Finally, a docking model for SPTs with Mtb DNA gyrase was developed, and a structural hypothesis was built for structure-activity relationship expansion.
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Affiliation(s)
- Preshendren Govender
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Rudolf Müller
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Kawaljit Singh
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Virsinha Reddy
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Charles J Eyermann
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Stephen Fienberg
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Sandeep R Ghorpade
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Lizbé Koekemoer
- Drug Discovery and Development Centre (H3D) South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Alissa Myrick
- Drug Discovery and Development Centre (H3D) South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Dirk Schnappinger
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, New York 10065, United States
| | - Curtis Engelhart
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, New York 10065, United States
| | - Jaclynn Meshanni
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, New York 10065, United States
| | - Jo Ann W Byl
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
| | - Neil Osheroff
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States.,Department of Medicine (Hematology/Oncology), Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States.,VA Tennessee Valley Healthcare System, Nashville, Tennessee 37212, United States
| | - Vinayak Singh
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa.,Drug Discovery and Development Centre (H3D) South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Kelly Chibale
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa.,Drug Discovery and Development Centre (H3D) South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
| | - Gregory S Basarab
- Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa.,Drug Discovery and Development Centre (H3D), Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Observatory, Cape Town, 7935, South Africa
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3
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Spiropyrimidinetriones: a Class of DNA Gyrase Inhibitors with Activity against Mycobacterium tuberculosis and without Cross-Resistance to Fluoroquinolones. Antimicrob Agents Chemother 2022; 66:e0219221. [PMID: 35266826 PMCID: PMC9017349 DOI: 10.1128/aac.02192-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Described here is a series of spiropyrimidinetrione (SPT) compounds with activity against Mycobacterium tuberculosis through inhibition of DNA gyrase. The SPT class operates via a novel mode of inhibition, which involves Mg2+-independent stabilization of the DNA cleavage complex with DNA gyrase and is thereby not cross-resistant with other DNA gyrase-inhibiting antibacterials, including fluoroquinolones. Compound 22 from the series was profiled broadly and showed in vitro cidality as well as intracellular activity against M. tuberculosis in macrophages. Evidence for the DNA gyrase mode of action was supported by inhibition of the target in a DNA supercoiling assay and elicitation of an SOS response seen in a recA reporter strain of M. tuberculosis. Pharmacokinetic properties of 22 supported evaluation of efficacy in an acute model of M. tuberculosis infection, where modest reduction in CFU numbers was seen. This work offers promise for deriving a novel drug class of tuberculosis agent without preexisting clinical resistance.
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4
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Zhou HF, Li WY, Peng LY, Li XN, Zuo ZL, Zhao QS. Rhynchines A-E: Ca v3.1 Calcium Channel Blockers from Uncaria rhynchophylla. Org Lett 2021; 23:9463-9467. [PMID: 34818888 DOI: 10.1021/acs.orglett.1c03641] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rhynchines A-E (1-5), five new indole alkaloids with an unprecedented skeleton, were isolated from Uncaria rhynchophylla. The new skeleton was characterized by an indole moiety and a 2-oxa-8-azatricyclo[6,5,01,5,01,8]tridecane core, forming a unique 6/5/7/5/5 ring system. Their structures were determined by nuclear magnetic resonance, high-resolution electrospray ionization mass spectrometry, infrared spectroscopy, and calculated electronic circular dichroism (ECD) and were confirmed by X-ray crystallography. Interestingly, 1 and 2 showed strong inhibitory activities against the Cav3.1 calcium channel with IC50 values of 6.86 and 10.41 μM.
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Affiliation(s)
- Hao-Feng Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wen-Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Li-Yan Peng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Zhi-Li Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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5
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Zaitseva ER, Smirnov AY, Myasnyanko IN, Mineev KS, Sokolov AI, Volkhina TN, Mikhaylov AA, Baleeva NS, Baranov MS. Imidazol-5-ones as a substrate for [1,5]-hydride shift triggered cyclization. NEW J CHEM 2021. [DOI: 10.1039/d0nj05738j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
(2-Aminobenzylidene)-imidazolones were used as substrates for [1,5]-hydride shift triggered cyclization under promotion by TiCl4 at room temperature.
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Affiliation(s)
- Elvira R. Zaitseva
- Institute of Bioorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
- D. Mendeleev University of Chemical Technology of Russia
| | | | - Ivan N. Myasnyanko
- Institute of Bioorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | | | | | - Tatyana N. Volkhina
- D. Mendeleev University of Chemical Technology of Russia
- 9 Miusskaya Sq
- Moscow
- Russia
- A.N. Nesmeyanov Institute of Organoelement Compounds
| | | | | | - Mikhail S. Baranov
- Institute of Bioorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
- Pirogov Russian National Research Medical University
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6
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Basarab GS, Doig P, Eyermann CJ, Galullo V, Kern G, Kimzey A, Kutschke A, Morningstar M, Schuck V, Vishwanathan K, Zhou F, Gowravaram M, Hauck S. Antibacterial Spiropyrimidinetriones with N-Linked Azole Substituents on a Benzisoxazole Scaffold Targeting DNA Gyrase. J Med Chem 2020; 63:11882-11901. [DOI: 10.1021/acs.jmedchem.0c01100] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Gregory S. Basarab
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Peter Doig
- Department of Biosciences, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Charles J. Eyermann
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Vincent Galullo
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Gunther Kern
- Department of Biosciences, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Amy Kimzey
- Discovery Safety, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Amy Kutschke
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Marshall Morningstar
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Virna Schuck
- Drug Safety and Metabolism, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Karthick Vishwanathan
- Drug Safety and Metabolism, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Fei Zhou
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Madhusudhan Gowravaram
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Sheila Hauck
- Department of Chemistry, Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
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7
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Bradford PA, Miller AA, O’Donnell J, Mueller JP. Zoliflodacin: An Oral Spiropyrimidinetrione Antibiotic for the Treatment of Neisseria gonorrheae, Including Multi-Drug-Resistant Isolates. ACS Infect Dis 2020; 6:1332-1345. [PMID: 32329999 DOI: 10.1021/acsinfecdis.0c00021] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Centers for Disease Control and the World Health Organization have issued a list of priority pathogens for which there are dwindling therapeutic options, including antibiotic-resistant Neisseria gonorrheae, for which novel oral agents are urgently needed. Zoliflodacin, the first in a new class of antibacterial agents called the spiropyrimidinetriones, is being developed for the treatment of gonorrhea. It has a unique mode of inhibition against bacterial type II topoisomerases with binding sites in bacterial gyrase that are distinct from those of the fluoroquinolones. Zoliflodacin is bactericidal, with a low frequency of resistance and potent antibacterial activity against N. gonorrheae, including multi-drug-resistant strains (MICs ranging from ≤0.002 to 0.25 μg/mL). Although being developed for the treatment of gonorrhea, zoliflodacin also has activity against Gram-positive, fastidious Gram-negative, and atypical pathogens. A hollow-fiber infection model using S. aureus showed that that pharmacokinetic/pharmacodynamic index of fAUC/MIC best correlated with efficacy in in vivo neutropenic thigh models in mice. This data and unbound exposure magnitudes derived from the thigh models were subsequently utilized in a surrogate pathogen approach to establish dose ranges for clinical development with N. gonorrheae. In preclinical studies, a wide safety margin supported progression to phase 1 studies in healthy volunteers, which showed linear pharmacokinetics, good oral bioavailability, and no significant safety findings. In a phase 2 study, zoliflodacin was effective in treating gonococcal urogenital and rectal infections. In partnership with the Global Antibiotic Research Development Program (GARDP), zoliflodacin is currently being studied in a global phase 3 clinical trial. Zoliflodacin represents a promising new oral therapy for drug-resistant infections caused by N. gonorrheae.
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Affiliation(s)
- Patricia A. Bradford
- Antimicrobial Development Specialists, LLC, Nyack, New York 10960, United States
| | - Alita A. Miller
- Entasis Therapeutics, Waltham, Massachusetts 02451, United States
| | - John O’Donnell
- Entasis Therapeutics, Waltham, Massachusetts 02451, United States
| | - John P. Mueller
- Entasis Therapeutics, Waltham, Massachusetts 02451, United States
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8
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Das P, Ray S, Saha R, Mukhopadhyay C. One‐Pot Synthesis of Densely Substituted 1,2,3,4‐Tetrahydro‐1,6‐naphthyridine Mediated by Isocyanide‐Assisted Reduction of C−C Double Bond. ChemistrySelect 2020. [DOI: 10.1002/slct.202000441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Paramita Das
- Department of ChemistryUniversity of Calcutta 92 APC Road Kolkata 700009 India
- Department of Chemistry Asutosh CollegeUniversity of Calcutta 92 S. P. Mukherjee Road Kolkata 700026 India
| | - Suman Ray
- Department of ChemistryUniversity of Calcutta 92 APC Road Kolkata 700009 India
- Department of ChemistryPresidency University 86/1 College Street Kolkata 700073 India
| | - Rupak Saha
- Inorganic and PhysicalChemistry Department Indian Institute of Science Bangalore 560012 India
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9
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Facile catalyst-free synthesis of perfluoroalkylated cis-spiropyrimidine-5,1′-quinolizines and pyrano[2,3-d]pyrimidines. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.109411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Niu Q, Xi J, Li L, Li L, Pan C, Lan M, Rong L. Isatins 3-C annulation vs ring-opening: Two different pathways for synthesis of spiro compounds via multicomponent reactions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151181] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Josa-Culleré L, Hirst MG, Lockett JP, Thompson AL, Moloney MG. Spirocyclic Tetramates by Sequential Knoevenagel and [1,5]-Prototropic Shift. J Org Chem 2019; 84:9671-9683. [PMID: 31276419 DOI: 10.1021/acs.joc.9b01345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Highly functionalized spirocyclic tetramates were prepared via a sequential Knoevenagel reaction and [1,5]-prototropic shift (T-reaction) of bicyclic tetramates. While these compounds isomerize in solution, stable analogues can be prepared via an appropriate choice of substituents. Further modification of these compounds allows for the introduction of aromatic groups, making them suitable as skeletons for application in medicinal chemistry.
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Affiliation(s)
- Laia Josa-Culleré
- Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Michael G Hirst
- Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Jonathan P Lockett
- Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Amber L Thompson
- Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Mark G Moloney
- Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K.,Oxford Suzhou Centre for Advanced Research , Building A, 388 Ruo Shui Road, Suzhou Industrial Park , Jiangsu 215123 , P. R. China
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12
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Wang F, He Y, Tian M, Zhang X, Fan X. Synthesis of α-Formylated N-Heterocycles and Their 1,1-Diacetates from Inactivated Cyclic Amines Involving an Oxidative Ring Contraction. Org Lett 2018; 20:864-867. [PMID: 29345128 DOI: 10.1021/acs.orglett.7b04029] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel synthesis of pyrrolidine-2-carbaldehydes or tetrahydropyridine-2-carbaldehydes from the cascade reactions of N-arylpiperidines or N-arylazepanes is presented. Mechanistically, the formation of the title compounds involves an unprecedented oxidative ring contraction of inactivated cyclic amines via Cu(OAc)2/KI/O2-promoted oxidative cleavage and reformation of the C-N bond. Interestingly, when PhI(OAc)2 was used in place of KI, 1,1-diacetates of the corresponding aldehydes were directly obtained with good efficiency. To the best of our knowledge, this is the first example of regioselective C(sp3)-H bond functionalization and C(sp3)-N bond activation of saturated cyclic amines using copper salt and oxygen.
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Affiliation(s)
- Fang Wang
- School of Environment, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University , Xinxiang, Henan 453007, China
| | - Yan He
- School of Environment, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University , Xinxiang, Henan 453007, China
| | - Miaomiao Tian
- School of Environment, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University , Xinxiang, Henan 453007, China
| | - Xinying Zhang
- School of Environment, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University , Xinxiang, Henan 453007, China
| | - Xuesen Fan
- School of Environment, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University , Xinxiang, Henan 453007, China
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13
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Jouha J, Buttard F, Lorion M, Berthonneau C, Khouili M, Hiebel MA, Guillaumet G, Brière JF, Suzenet F. Domino Aza-Michael-ih-Diels–Alder Reaction to Various 3-Vinyl-1,2,4-triazines: Access to Polysubstituted Tetrahydro-1,6-naphthyridines. Org Lett 2017; 19:4770-4773. [DOI: 10.1021/acs.orglett.7b02132] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jabrane Jouha
- Université d’Orléans, CNRS, ICOA, UMR
7311, 45067 Orléans, France
- Laboratoire
de Chimie Organique et Analytique, Université Sultan Moulay Slimane - Faculté des Sciences et Techniques, BP 523, 23000 Beni-Mellal, Morocco
| | - Floris Buttard
- Université d’Orléans, CNRS, ICOA, UMR
7311, 45067 Orléans, France
| | - Magali Lorion
- Université d’Orléans, CNRS, ICOA, UMR
7311, 45067 Orléans, France
| | - Clément Berthonneau
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA
(UMR 6014), 76000 Rouen, France
| | - Mostafa Khouili
- Laboratoire
de Chimie Organique et Analytique, Université Sultan Moulay Slimane - Faculté des Sciences et Techniques, BP 523, 23000 Beni-Mellal, Morocco
| | | | | | - Jean-François Brière
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA
(UMR 6014), 76000 Rouen, France
| | - Franck Suzenet
- Université d’Orléans, CNRS, ICOA, UMR
7311, 45067 Orléans, France
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14
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Terent'ev AO, Vil' VA, Gorlov ES, Rusina ON, Korlyukov AA, Nikishin GI, Adam W. Selective Oxidative Coupling of 3H-Pyrazol-3-ones, Isoxazol-5(2H)-ones, Pyrazolidine-3,5-diones, and Barbituric Acids with Malonyl Peroxides: An Effective C-O Functionalization. ChemistrySelect 2017. [DOI: 10.1002/slct.201700720] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alexander O. Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
- All-Russian Research Institute for Phytopathology; B. Vyazyomy Moscow Region 143050 Russian Federation
| | - Vera A. Vil'
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
- All-Russian Research Institute for Phytopathology; B. Vyazyomy Moscow Region 143050 Russian Federation
| | - Evgenii S. Gorlov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
| | - Olga N. Rusina
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
| | - Alexander A. Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova ul Moscow 119991 Russian Federation
- Pirogov Russian National Research Medical University; Ostrovitianov str. 1 Moscow 117997 Russian Federation
| | - Gennady I. Nikishin
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
| | - Waldemar Adam
- Institute of Organic Chemistry; University of Würzburg; Am Hubland, D- 97074 Würzburg Germany
- Department of Chemistry, Faculty of Natural Sciences; University of Puerto Rico; Rio Piedras Puerto Rico 00931 USA
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15
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Zhao T, Zhang H, Cui L, Wang C, Qu J, Wang B. A ZnCl2-Catalyzed Knoevenagel Condensation/1,5-Hydride Shift/Cyclization Sequence: Synthesis of Novel Spiroisoxazol-5-one Tetrahydroquinolines. ChemistrySelect 2016. [DOI: 10.1002/slct.201600823] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tuan Zhao
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 P. R. China
| | - Huanrui Zhang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 P. R. China
| | - Longchen Cui
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 P. R. China
| | - Changxue Wang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 P. R. China
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16
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Guo J, Joubran C, Luzietti RA, Basarab GS, Grimm SW, Vishwanathan K. Absorption, distribution, metabolism and elimination of 14C-ETX0914, a novel inhibitor of bacterial type-II topoisomerases in rodents. Xenobiotica 2016; 47:31-49. [PMID: 27122100 DOI: 10.3109/00498254.2016.1156186] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
1. ETX0914 is a novel bacterial topoisomerase inhibitor that has a novel mode-of-inhibition and is in clinical development for the treatment of infections caused by Neisseria gonorrhoeae. 2. The in vitro biotransformation studies of ETX0914 using mouse, rat, dog and human hepatocytes showed moderate intrinsic clearance in mouse and rat and low intrinsic clearance in dog and human. 3. Following intravenous administration of [14C]-ETX0914 in rats, the mean recovery of administered dose in urine, bile and feces was approximately 15%, 55% and 24%, respectively. Unchanged ETX0914 recovered in urine and bile was less than 5% of the dose, indicating that ETX0914 underwent extensive metabolism in rats. Metabolites M1, M2, M4, M6 and M12 detected in both rat and mouse urine samples were not detected in mouse urine when predosed with 1-aminobenzotriazole, indicating that these metabolites were cytochrome P450 mediated products. The major fecal metabolites observed in rats were not formed when ETX0914 was incubated with fresh feces from germ free rats under sterile condition or in incubations with rat intestinal microsome and cytosol, suggesting that most likely ETX0914 was directly excreted into gut lumen where metabolites were formed as intestinal microflora-mediated products. The major sites of metabolism by CYP enzymes were in the morpholine and oxazolidinone rings while it was benzisoxazole reduction with the gut microflora.
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Affiliation(s)
- Jian Guo
- a Department of DMPK AstraZeneca Pharmaceuticals , Waltham , MA , USA.,b Department of DMPK , Celgene Corporation , Bedford , MA , USA
| | - Camil Joubran
- c Department of Chemistry of Infection Innovative Medicine , AstraZeneca Pharmaceuticals , Waltham , MA , USA.,d Analytical Development, Alkermes , Waltham , MA , USA
| | - Ricardo A Luzietti
- a Department of DMPK AstraZeneca Pharmaceuticals , Waltham , MA , USA.,e Full Spectrum Analytics Inc , CA , USA
| | - Gregory S Basarab
- c Department of Chemistry of Infection Innovative Medicine , AstraZeneca Pharmaceuticals , Waltham , MA , USA.,f Department of Chemistry , Drug Discovery and Development Centre, University of Cape Town , Rondebosch , South Africa , and
| | - Scott W Grimm
- c Department of Chemistry of Infection Innovative Medicine , AstraZeneca Pharmaceuticals , Waltham , MA , USA
| | - Karthick Vishwanathan
- a Department of DMPK AstraZeneca Pharmaceuticals , Waltham , MA , USA.,g Early Clinical Development, AstraZeneca Pharmaceuticals , Waltham , MA , USA
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17
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Jackl MK, Kreituss I, Bode JW. Synthesis of Tetrahydronaphthyridines from Aldehydes and HARP Reagents via Radical Pictet-Spengler Reactions. Org Lett 2016; 18:1713-5. [PMID: 27026179 DOI: 10.1021/acs.orglett.6b00523] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The combination of aldehydes with newly designed HARP (halogen amine radical protocol) reagents gives access to α-substituted tetrahydronaphthyridines. By using different HARP reagents, various regioisomeric structures can be prepared in a single operation. These products, which are of high value in medicinal chemistry, are formed in a predictable manner via a formal Pictet-Spengler reaction of electron-poor pyridines that would not participate in the corresponding polar reactions.
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Affiliation(s)
- Moritz K Jackl
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich , 8093 Zürich, Switzerland
| | - Imants Kreituss
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich , 8093 Zürich, Switzerland
| | - Jeffrey W Bode
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich , 8093 Zürich, Switzerland
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18
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Briones JF, Basarab GS. Expedient synthesis of tetrahydroquinoline-3-spirohydantoin derivatives via the Lewis acid-catalyzed tert-amino effect reaction. Chem Commun (Camb) 2016; 52:8541-4. [DOI: 10.1039/c6cc03600g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Magnesium triflate was found to effectively catalyze the tert-amino effect reaction (T-reaction) involving ethyl 3-(2-(dialkylamino)-phenyl)-2-nitroacrylates leading to tetrahydroquinoline nitroester derivatives.
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Affiliation(s)
- John F. Briones
- Infection Innovative Medicines
- AstraZeneca R&D Boston
- Waltham
- USA
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19
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Basarab GS, Doig P, Galullo V, Kern G, Kimzey A, Kutschke A, Newman JP, Morningstar M, Mueller J, Otterson L, Vishwanathan K, Zhou F, Gowravaram M. Discovery of Novel DNA Gyrase Inhibiting Spiropyrimidinetriones: Benzisoxazole Fusion with N-Linked Oxazolidinone Substituents Leading to a Clinical Candidate (ETX0914). J Med Chem 2015; 58:6264-82. [PMID: 26158756 DOI: 10.1021/acs.jmedchem.5b00863] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel class of bacterial type-II topoisomerase inhibitor displaying a spiropyrimidinetrione architecture fused to a benzisoxazole scaffold shows potent activity against Gram-positive and fastidious Gram-negative bacteria. Here, we describe a series of N-linked oxazolidinone substituents on the benzisoxazole that improve upon the antibacterial activity of initially described compounds of the class, show favorable PK properties, and demonstrate efficacy in an in vivo Staphylococcus aureus infection model. Inhibition of the topoisomerases DNA gyrase and topoisomerase IV from both Gram-positive and a Gram-negative organisms was demonstrated. Compounds showed a clean in vitro toxicity profile, including no genotoxicity and no bone marrow toxicity at the highest evaluated concentrations or other issues that have been problematic for some fluoroquinolones. Compound 1u was identified for advancement into human clinical trials for treatment of uncomplicated gonorrhea based on a variety of beneficial attributes including the potent activity and the favorable safety profile.
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20
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Responding to the challenge of untreatable gonorrhea: ETX0914, a first-in-class agent with a distinct mechanism-of-action against bacterial Type II topoisomerases. Sci Rep 2015; 5:11827. [PMID: 26168713 PMCID: PMC4501059 DOI: 10.1038/srep11827] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 06/04/2015] [Indexed: 12/20/2022] Open
Abstract
With the diminishing effectiveness of current antibacterial therapies, it is critically important to discover agents that operate by a mechanism that circumvents existing resistance. ETX0914, the first of a new class of antibacterial agent targeted for the treatment of gonorrhea, operates by a novel mode-of-inhibition against bacterial type II topoisomerases. Incorporating an oxazolidinone on the scaffold mitigated toxicological issues often seen with topoisomerase inhibitors. Organisms resistant to other topoisomerase inhibitors were not cross-resistant with ETX0914 nor were spontaneous resistant mutants to ETX0914 cross-resistant with other topoisomerase inhibitor classes, including the widely used fluoroquinolone class. Preclinical evaluation of ETX0914 pharmacokinetics and pharmacodynamics showed distribution into vascular tissues and efficacy in a murine Staphylococcus aureus infection model that served as a surrogate for predicting efficacious exposures for the treatment of Neisseria gonorrhoeae infections. A wide safety margin to the efficacious exposure in toxicological evaluations supported progression to Phase 1. Dosing ETX0914 in human volunteers showed sufficient exposure and minimal adverse effects to expect a highly efficacious anti-gonorrhea therapy.
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21
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Zhao T, Zhang H, Cui L, Qu J, Wang B. Zinc chloride catalyzed stereoselective construction of spiropyrazolone tetrahydroquinolines via tandem [1,5]-hydride shift/cyclization sequence. RSC Adv 2015. [DOI: 10.1039/c5ra18471a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A concise synthesis of spiropyrazolones has been developed via an efficient ZnCl2-catalyzed stereoselective 1,5-hydride shift/cyclization sequence.
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Affiliation(s)
- Tuan Zhao
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Huanrui Zhang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Longchen Cui
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
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