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Novel Thiosemicarbazone Derivatives: In Vitro and In Silico Evaluation as Potential MAO-B Inhibitors. Molecules 2021; 26:molecules26216640. [PMID: 34771054 PMCID: PMC8587871 DOI: 10.3390/molecules26216640] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/22/2021] [Accepted: 10/30/2021] [Indexed: 11/29/2022] Open
Abstract
MAO-B inhibitors are frequently used in the treatment of neurodegenerative diseases such as Parkinson’s and Alzheimer’s. Due to the limited number of compounds available in this field, there is a need to develop new compounds. In the recent works, it was shown that various thiosemicarbazone derivatives show hMAO inhibitory activity in the range of micromolar concentration. It is thought that benzofuran and benzothiophene structures may mimic structures such as indane and indanone, which are frequently found in the structures of such inhibitors. Based on this view, new benzofuran/benzothiophene and thiosemicarbazone hybrid compounds were synthesized, characterized and screened for their hMAO-A and hMAO-B inhibitory activity by an in vitro fluorometric method. The compounds including methoxyethyl substituent (2b and 2h) were found to be the most effective agents in the series against MAO-B enzyme with the IC50 value of 0.042 ± 0.002 µM and 0.056 ± 0.002 µM, respectively. The mechanism of hMAO-B inhibition of compounds 2b and 2h was investigated by Lineweaver–Burk graphics. Compounds 2b and 2h were reversible and non-competitive inhibitors with similar inhibition features as the substrates. The Ki values of compounds 2b and 2h were calculated as 0.035 µM and 0.046 µM, respectively, with the help of secondary plots. The docking study of compound 2b and 2h revealed that there is a strong interaction between the active sites of hMAO-B and analyzed compound.
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Chen Q, Pan Y, Yue T, Yang W, Liu H, Zheng J. [4 + 2]-Annulation of Prop-2-ynylsulfonium Salts and Isatoic Anhydrides: Access to 3-Methylthio-4-quinolones. Org Lett 2020; 22:6096-6100. [PMID: 32677437 DOI: 10.1021/acs.orglett.0c02173] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An unparalleled [4 + 2]-annulation of prop-2-ynylsulfonium salts with isatoic anhydrides was developed, affording a series of 4-quinolones with a alkylthio group in medium to good yields under mild conditions. In this reaction type, the prop-2-ynylsulfonium salt serves as a C2 synthon and sulfide does not act as a leaving group, providing facile access to organosulfur compounds. The resulting quinolone products could be further transformed to a diverse range of synthetically useful compounds.
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Affiliation(s)
- Qinfang Chen
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Yihao Pan
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Tingting Yue
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Weiran Yang
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Hua Liu
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Wanli Distract, Nanchang 330004, China
| | - Jing Zheng
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
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Bogolubsky AV, Moroz YS, Mykhailiuk PK, Dmytriv YV, Pipko SE, Babichenko LN, Konovets AI, Tolmachev A. Facile one-pot synthesis of 4-substituted semicarbazides. RSC Adv 2015. [DOI: 10.1039/c4ra12425a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple one-pot approach to 4-substituted semicarbazides allowed us to synthesize a 25 member library.
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Affiliation(s)
| | - Yurii S. Moroz
- Enamine Ltd
- Kyiv
- Ukraine
- ChemBioCenter
- Kyiv National Taras Shevchenko University
| | - Pavel K. Mykhailiuk
- Enamine Ltd
- Kyiv
- Ukraine
- Department of Chemistry
- Kyiv National Taras Shevchenko University
| | | | - Sergey E. Pipko
- ChemBioCenter
- Kyiv National Taras Shevchenko University
- Kyiv
- Ukraine
| | | | - Anzhelika I. Konovets
- Enamine Ltd
- Kyiv
- Ukraine
- The Institute of High Technologies
- Kyiv National Taras Shevchenko University
| | - Andrey Tolmachev
- Enamine Ltd
- Kyiv
- Ukraine
- ChemBioCenter
- Kyiv National Taras Shevchenko University
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Paz J, Pérez-Balado C, Iglesias B, Muñoz L. Different Reactivity of Hydroxylamine with Carbamoyl Azides and Carbamoyl Cyanides: Synthesis of Hydroxyureas and Carbamoyl Amidoximes. J Org Chem 2010; 75:8039-47. [DOI: 10.1021/jo1014855] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jairo Paz
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain
| | - Carlos Pérez-Balado
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain
| | - Beatriz Iglesias
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain
| | - Luis Muñoz
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain
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Noguchi T, Sano H, Shimazawa R, Tanatani A, Miyachi H, Hashimoto Y. Phenylhomophthalimide-type NOS inhibitors derived from thalidomide. Bioorg Med Chem Lett 2004; 14:4141-5. [PMID: 15261258 DOI: 10.1016/j.bmcl.2004.06.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2004] [Revised: 06/09/2004] [Accepted: 06/10/2004] [Indexed: 10/26/2022]
Abstract
Thalidomide shows moderate inhibitory activity toward neuronal nitric oxide synthase (nNOS) and inducible NOS (iNOS), but not toward endothelial NOS (eNOS). Structural development studies of thalidomide yielded novel phenylhomophthalimide-type NOS inhibitors with enhanced activity and different subtype selectivity.
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Affiliation(s)
- Tomomi Noguchi
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
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Sawa T, Akaike T, Ichimori K, Akuta T, Kaneko K, Nakayama H, Stuehr DJ, Maeda H. Superoxide generation mediated by 8-nitroguanosine, a highly redox-active nucleic acid derivative. Biochem Biophys Res Commun 2004; 311:300-6. [PMID: 14592413 DOI: 10.1016/j.bbrc.2003.10.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Formation of 8-nitroguanosine may be characterized as nucleic acid modification induced by nitric oxide (NO). We show here that 8-nitroguanosine is a highly redox-active nucleic acid derivative that strongly stimulated superoxide generation from various NADPH-dependent reductases, including cytochrome P450 reductase and all isoforms of NO synthase. This reaction involves these reductases in a redox cycling reaction via single-electron reduction of 8-nitroguanosine to form 8-nitroguanosine anion radical. One electron is then transferred from this radical to molecular oxygen. 8-Nitroguanosine formed in vivo may function as a potent redox cofactor that intensifies oxyradical generation by various NADPH/reductase-like enzymes and thus participates in diverse physiological and pathological events.
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Affiliation(s)
- Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical and Pharmaceutical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
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Shimazawa R, Sano H, Tanatani A, Miyachi H, Hashimoto Y. Thalidomide as a Nitric Oxide Synthase Inhibitor and Its Structural Development. Chem Pharm Bull (Tokyo) 2004; 52:498-9. [PMID: 15056977 DOI: 10.1248/cpb.52.498] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Thalidomide has been found to exhibit weak nitric oxide synthase (NOS)-inhibitory activity. Structural development studies of thalidomide showed that some N-2,6-dimethylphenylhomophthalimide analogs possess NOS-inhibiting activity.
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Affiliation(s)
- Rumiko Shimazawa
- Institute of Molecular & Cellular Biosciences, The University of Tokyo, Japan.
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Huang J, Zou Z, Kim-Shapiro DB, Ballas SK, King SB. Hydroxyurea analogues as kinetic and mechanistic probes of the nitric oxide producing reactions of hydroxyurea and oxyhemoglobin. J Med Chem 2003; 46:3748-53. [PMID: 12904079 DOI: 10.1021/jm0301538] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Derivatives of N-hydroxyurea that contain an N-hydroxy group react with oxyhemoglobin to form methemoglobin and variable amounts of nitrite/nitrate. Compounds with an unsubstituted -NHOH group produce the most nitrite/nitrate, which provides evidence for nitric oxide formation. The rate of reaction of these N-hydroxyurea derivatives with oxyhemoglobin correlates well with that compound's oxidation potential. Aromatic N-hydroxyureas react 25-80-fold faster with oxyhemoglobin than with N-hydroxyurea, suggesting other N-hydroxyurea analogues may be superior nitric oxide donors. Electron paramagnetic resonance spectroscopy shows that the formation of a low-spin methemoglobin-hydroxyurea complex is critical for iron nitrosyl hemoglobin formation. These results show that iron nitrosyl hemoglobin formation from the reaction of hydroxyureas and hemoglobin requires an unsubstituted -NHOH group and that the nitrogen atom of the non-N-hydroxy group must contain at least a single hydrogen atom. These results should guide the development of new hydroxyurea-based nitric oxide donors and sickle cell disease therapies.
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Affiliation(s)
- Jinming Huang
- Departments of Chemistry and Physics, Wake Forest University, Winston-Salem, NC 27109, USA
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An easy access to α,β-unsaturated thioacylsilanes: a useful route to silylated 1,2-dithiins. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)00445-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Akaike T, Okamoto S, Sawa T, Yoshitake J, Tamura F, Ichimori K, Miyazaki K, Sasamoto K, Maeda H. 8-nitroguanosine formation in viral pneumonia and its implication for pathogenesis. Proc Natl Acad Sci U S A 2003; 100:685-90. [PMID: 12522148 PMCID: PMC141057 DOI: 10.1073/pnas.0235623100] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
For many diseases, mediation of pathogenesis by nitric oxide (NO) has been suggested. In this study, we explored NO-induced viral pathogenesis with a focus on nucleic acid damage as evidenced by 8-nitroguanosine formation in vivo. Wild-type mice and littermate mice deficient in inducible NO synthase (iNOS) were infected with influenza or Sendai virus. Formation of 8-nitroguanosine in virus-infected lungs was assessed immunohistochemically with an antibody specific for 8-nitroguanosine. Extensive nitration of RNA either treated with peroxynitrite or obtained from cultured RAW 264 cells expressing iNOS was readily detected by this antibody. Strong 8-nitroguanosine immunostaining was evident primarily in the cytosol of bronchial and bronchiolar epithelial cells of virus-infected wild-type mice but not iNOS-deficient mice. This staining colocalized with iNOS immunostaining in the lung. 8- Nitroguanosine staining disappeared after addition of exogenous authentic 8-nitroguanosine during the antibody reaction and after pretreatment of tissues with sodium hydrosulfite, which reduces 8-nitroguanosine to 8-aminoguanosine. NO was generated in excess in lungs of wild-type mice but was eliminated in iNOS-deficient mice after virus infection; this result also correlated well with formation of 8-nitroguanosine and 3-nitrotyrosine. One consequence of the lack of iNOS expression was marked improvement in histopathological changes in the lung and the lethality of the infection without effects on cytokine responses and viral clearance. It is intriguing that 8-nitroguanosine markedly stimulated superoxide generation from cytochrome P450 reductase and iNOS in vitro. The present data constitute a demonstration of 8-nitroguanosine formation in vivo and suggest a potential role for NO-induced nitrative stress in viral pathogenesis.
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Affiliation(s)
- Takaaki Akaike
- Department of Microbiology, Kumamoto University School of Medicine, Kumamoto 860-0811, Japan.
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Uesato S, Hashimoto Y, Nishino M, Nagaoka Y, Kuwajima H. N-substituted hydroxyureas as urease inhibitors. Chem Pharm Bull (Tokyo) 2002; 50:1280-2. [PMID: 12237554 DOI: 10.1248/cpb.50.1280] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In order to seek a urease inhibitor more potent than hydroxyurea (1), its alkyl- or phenyl-substituted derivatives were synthesized and evaluated for their effect on the jack bean urease. Of 16 compounds tested, m-methyl- (10) and m-methoxy-phenyl substituted hydroxyurea (13) showed the most potent inhibitory activities against the enzyme.
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Affiliation(s)
- Shinichi Uesato
- Department of Biotechnology, Faculty of Engineering, Kansai Univeristy, Suita, Osaka, Japan.
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Ware RW, King SB. Evaluation of new L-thiocitrulline derivatives as inhibitors of nitric oxide synthase. Bioorg Med Chem Lett 2000; 10:2779-81. [PMID: 11133090 DOI: 10.1016/s0960-894x(00)00567-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
New derivatives of L-thiocitrulline were prepared and assayed as inhibitors of the three isoforms of nitric oxide synthase. These compounds demonstrated weak inhibitory activity against the NOS isoforms and these results directly support a recently described model of the L-arginine binding site of NOS.
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Affiliation(s)
- R W Ware
- Department of Chemistry, Wake Forest University, Winston-Salem, NC 27109, USA
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Production of nitroxyl (HNO) at biologically relevant temperatures from the retro-Diels–Alder reaction of N-hydroxyurea-derived acyl nitroso-9,10-dimethylanthracene cycloadducts. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)00670-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Atkinson RN, King SB. Guanidine-substituted imidazoles as inhibitors of nitric oxide synthase. Bioorg Med Chem Lett 1999; 9:2953-8. [PMID: 10571154 DOI: 10.1016/s0960-894x(99)00509-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Guanidine-substituted imidazoles were prepared and evaluated as inhibitors of the three isoforms of nitric oxide synthase. These results identify a new 2-substituted imidazole as an isoform selective inhibitor and illustrate the possible importance of the L-arginine side chain in selective isoform recognition.
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Affiliation(s)
- R N Atkinson
- Department of Chemistry, Wake Forest University Winston-Salem, NC 27109, USA
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