1
|
Xu Y, Luo Y, Ye J, Deng Y, Liu D, Zhang W. Rh-Catalyzed Sequential Asymmetric Hydrogenations of 3-Amino-4-Chromones Via an Unusual Dynamic Kinetic Resolution Process. J Am Chem Soc 2022; 144:20078-20089. [PMID: 36255361 DOI: 10.1021/jacs.2c09266] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rh-catalyzed sequential asymmetric hydrogenations of 3-amino-4-chromones have been achieved for the first time via an unprecedented dynamic kinetic resolution under neutral conditions, providing (S,R)-3-amino-4-chromanols in high yields (up to 98%) with excellent enantio- and diastereoselectivities (up to 99.9% ee and 20:1 dr). The mechanistic studies based on control experiments and density functional theory (DFT) calculations suggest that the dynamic kinetic resolution process for the intermediate enantiomers generated in the first hydrogenation step proceeded via a stereomutation (or called chiral assimilation) pathway from an undesired enantiomer to the desired enantiomer rather than via traditional racemization of the undesired enantiomer. The protocol can be performed on a gram scale with a relatively low catalyst loading and offers a practical and convenient pathway for synthesizing a series of bioactive chromanols and their derivatives.
Collapse
Affiliation(s)
- Yunnan Xu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yicong Luo
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jianxun Ye
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yu Deng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Delong Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.,Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| |
Collapse
|
2
|
Zhong Z, He X, Ge J, Zhu J, Yao C, Cai H, Ye XY, Xie T, Bai R. Discovery of small-molecule compounds and natural products against Parkinson's disease: Pathological mechanism and structural modification. Eur J Med Chem 2022; 237:114378. [DOI: 10.1016/j.ejmech.2022.114378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/08/2021] [Accepted: 04/09/2022] [Indexed: 11/24/2022]
|
3
|
Chagraoui A, Di Giovanni G, De Deurwaerdère P. Neurobiological and Pharmacological Perspectives of D3 Receptors in Parkinson’s Disease. Biomolecules 2022; 12:biom12020243. [PMID: 35204744 PMCID: PMC8961531 DOI: 10.3390/biom12020243] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/19/2022] [Accepted: 01/26/2022] [Indexed: 12/02/2022] Open
Abstract
The discovery of the D3 receptor (D3R) subtypes of dopamine (DA) has generated an understandable increase in interest in the field of neurological diseases, especially Parkinson’s disease (PD). Indeed, although DA replacement therapy with l-DOPA has provided an effective treatment for patients with PD, it is responsible for invalidating abnormal involuntary movements, known as L-DOPA-induced dyskinesia, which constitutes a serious limitation of the use of this therapy. Of particular interest is the finding that chronic l-DOPA treatment can trigger the expression of D1R–D3R heteromeric interactions in the dorsal striatum. The D3R is expressed in various tissues of the central nervous system, including the striatum. Compelling research has focused on striatal D3Rs in the context of PD and motor side effects, including dyskinesia, occurring with DA replacement therapy. Therefore, this review will briefly describe the basal ganglia (BG) and the DA transmission within these brain regions, before going into more detail with regard to the role of D3Rs in PD and their participation in the current treatments. Numerous studies have also highlighted specific interactions between D1Rs and D3Rs that could promote dyskinesia. Finally, this review will also address the possibility that D3Rs located outside of the BG may mediate some of the effects of DA replacement therapy.
Collapse
Affiliation(s)
- Abdeslam Chagraoui
- Différenciation et Communication Neuroendocrine, Endocrine et Germinale Laboratory, Institute for Research and Innovation in Biomedicine of Normandy (IRIB), University of Rouen, INSERM 1239, 76000 Rouen, France
- Department of Medical Biochemistry, Rouen University Hospital, 76000 Rouen, France
- Correspondence: ; Tel.: +33-2-35-14-83-69
| | - Giuseppe Di Giovanni
- Laboratory of Neurophysiology, Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, 2080 Msida, Malta;
- Neuroscience Division, School of Biosciences, Cardiff University, Cardiff CF10 3AT, UK
| | - Philippe De Deurwaerdère
- Unité Mixte de Recherche (UMR) 5287, Centre National de la Recherche Scientifique (CNRS), CEDEX, 33000 Bordeaux, France;
| |
Collapse
|
4
|
Wang J, Wu G, Chu H, Wu Z, Sun J. Paeonol Derivatives and Pharmacological Activities: A Review of Recent Progress. Mini Rev Med Chem 2020; 20:466-482. [PMID: 31644406 DOI: 10.2174/1389557519666191015204223] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/04/2019] [Accepted: 06/25/2019] [Indexed: 12/15/2022]
Abstract
Paeonol, 2-hydroxy-4-methoxy acetophenone, is one of the main active ingredients of traditional Chinese medicine such as Cynanchum paniculatum, Paeonia suffruticosa Andr and Paeonia lactiflora Pall. Modern medical research has shown that paeonol has a wide range of pharmacological activities. In recent years, a large number of studies have been carried out on the structure modification of paeonol and the mechanism of action of paeonol derivatives has been studied. Some paeonol derivatives exhibit good pharmacological activities in terms of antibacterial, anti-inflammatory, antipyretic analgesic, antioxidant and other pharmacological effects. Herein, the research progress on paeonol derivatives and their pharmacological activities were systematically reviewed.
Collapse
Affiliation(s)
- Jilei Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China.,Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan, China
| | - Guiying Wu
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China.,Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan, China
| | - Haiping Chu
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan, China.,Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, China.,Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, China
| | - Zhongyu Wu
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan, China.,Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, China.,Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, China
| | - Jingyong Sun
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan, China.,Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, China.,Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, China
| |
Collapse
|
5
|
2-aminothiazoles in drug discovery: Privileged structures or toxicophores? Chem Biol Interact 2020; 330:109244. [PMID: 32861748 DOI: 10.1016/j.cbi.2020.109244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/15/2020] [Accepted: 08/26/2020] [Indexed: 01/11/2023]
Abstract
The 2-aminothiazole functionality has long been established as a privileged structural feature and therefore frequently exploited in the process of drug discovery and development. It has been introduced into numerous compounds due to its capacity for targeting a wide range of therapeutic target proteins. On the other hand, the aminothiazole group has also been classified as a toxicophore susceptible to metabolic activation and the ensuing reactive metabolite formation, hence caution is warranted when used in drug design. This review is divided into three parts entailing: (i) the general characteristics of the aminothiazole group, (ii) the advantages of the aminothiazole group in medicinal chemistry, and (iii) the impact of the integrated aminothiazole group on compound safety profile.
Collapse
|
6
|
Fu PK, Yang CY, Huang SC, Hung YW, Jeng KC, Huang YP, Chuang H, Huang NC, Li JP, Hsu MH, Chen JK. Evaluation of LPS-Induced Acute Lung Injury Attenuation in Rats by Aminothiazole-Paeonol Derivatives. Molecules 2017; 22:molecules22101605. [PMID: 28946699 PMCID: PMC6151495 DOI: 10.3390/molecules22101605] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 12/19/2022] Open
Abstract
Paeonol is a key phenolic compound in the root bark of Moutan Cortex Radicis that has been used in traditional Chinese Medicine to ameliorate inflammation. A series of aminothiazole-paeonol derivatives (APDs) were synthesized in this work and subjected to preliminary evaluation in cells followed by verification in animals. Quantification of monocyte chemotactic protein-1 (MCP-1) and interleukin-6 (IL-6) in culture media of LPS-activated A549 cells, a lung epithelial adenocarcinoma cell line, were used to investigate the anti-inflammatory capability of APDs. ALI-bearing rats were employed to verify therapeutic efficacy of APDs according to observations of total cells, protein amounts, MCP-1 and IL-6 in bronchoalveolar lavage fluid (BALF). Histopathological examinations of lung tissues were consequently applied for validation of APDs. Among these compounds, 2-(2-aminothiazol-4-yl)-5-methoxyphenol (4) had the most potent activity, showing comparable inhibition of MCP-1/IL-6 and superior elimination of neutrophil infiltration and protein exudation in lungs compared to others as well as dexamethasone. This study demonstrated a comprehensive strategy to evaluate APDs through integration of cell-based screening and animal-based verification. In order to fulfill unmet needs of treating acute lung injury (ALI) and acute respiratory distress syndrome (ARDS), APDs introduced in this work could be promising lead compounds to develop high potent anti-inflammation agents.
Collapse
Affiliation(s)
- Pin-Kuei Fu
- Department of Critical Care Medicine, Taichung Veterans General Hospital, Taichung 40705, Taiwan.
- Department of Biotechnology, Hungkuang University, Taichung 43302, Taiwan.
- School of Chinese Medicine, China Medical University, Taichung 40447, Taiwan.
| | - Chi-Yu Yang
- Animal Technology Laboratory, Agriculture Technology Research Institute, Miaoli 35053, Taiwan.
| | - Su-Chin Huang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan.
| | - Yu-Wen Hung
- Animal Technology Laboratory, Agriculture Technology Research Institute, Miaoli 35053, Taiwan.
| | - Kee-Ching Jeng
- Department of Medical Research, Tungs' Taichung MetroHarbor Hospital, Taichung 43503, Taiwan.
| | - Ying-Pei Huang
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Hong Chuang
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Nai-Chun Huang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan.
| | - Jui-Ping Li
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan.
| | - Ming-Hua Hsu
- Department of Chemistry, National Changhua University of Education, Changhua County 50007, Taiwan.
| | - Jen-Kun Chen
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan.
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 11490, Taiwan.
- School of Dentistry, National Defense Medical Center, Taipei 11490, Taiwan.
| |
Collapse
|
7
|
Synthesis and Evaluation of Aminothiazole-Paeonol Derivatives as Potential Anticancer Agents. Molecules 2016; 21:145. [PMID: 26821004 PMCID: PMC6273194 DOI: 10.3390/molecules21020145] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/11/2016] [Accepted: 01/20/2016] [Indexed: 01/07/2023] Open
Abstract
In this study, novel aminothiazole-paeonol derivatives were synthesized and characterized using 1H-NMR, 13C-NMR, IR, mass spectroscopy, and high performance liquid chromatography. All the new synthesized compounds were evaluated according to their anticancer effect on seven cancer cell lines. The experimental results indicated that these compounds possess high anticancer potential regarding human gastric adenocarcinoma (AGS cells) and human colorectal adenocarcinoma (HT-29 cells). Among these compounds, N-[4-(2-hydroxy-4-methoxyphenyl)thiazol-2-yl]-4-methoxybenzenesulfonamide (13c) had the most potent inhibitory activity, with IC50 values of 4.0 µM to AGS, 4.4 µM to HT-29 cells and 5.8 µM to HeLa cells. The 4-fluoro-N-[4-(2-hydroxy-4-methoxyphenyl)thiazol-2-yl]benzenesulfonamide (13d) was the second potent compound, showing IC50 values of 7.2, 11.2 and 13.8 µM to AGS , HT-29 and HeLa cells, respectively. These compounds are superior to 5-fluorouracil (5-FU) for relatively higher potency against AGS and HT-29 human cancer cell lines along with lower cytotoxicity to fibroblasts. Novel aminothiazole-paeonol derivatives in this work might be a series of promising lead compounds to develop anticancer agents for treating gastrointestinal adenocarcinoma.
Collapse
|
8
|
Huang YP, Shih HP, Liang YC, Lin HH, Lin MC, Chen CW, Huang TJ, Kuo YC, Han CC, Hsu MH. Advanced generation of paeonol-phenylsufonyl derivatives as potential anti-HBV agents. RSC Adv 2016. [DOI: 10.1039/c6ra06119b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Among all the compounds we presented here, 8a showed the most potent inhibitory effect and highest selectivity index, which exceeds those of lamivudine (3TC) and our previously synthesized compound 6f.
Collapse
Affiliation(s)
- Y. P. Huang
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
- Nuclear Science & Technology Department Center
| | - H. P. Shih
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Y. C. Liang
- Agricultural Biotechnology Research Center
- Academia Sinica
- Taipei 115
- Taiwan
| | - H. H. Lin
- Division of Radiotherapy
- Department of Oncology
- Taipei Veterans General Hospital
- Taipei 115
- Taiwan
| | - M. C. Lin
- Biomedical Technology and Device Research Laboratories
- Industrial Technology Research Institute
- Hsinchu 30013
- Taiwan
| | - C. W. Chen
- Department of Anesthesiology
- China Medical University Hospital
- Taichung 404
- Taiwan
- Department of Anesthesiology
| | - T. J. Huang
- School of Medicine
- China Medical University
- Taichung 404
- Taiwan
| | - Y. C. Kuo
- Radiation Oncology
- Show Chwan Memorial Hospital
- Changhua City 50008
- Taiwan
| | - C. C. Han
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - M. H. Hsu
- Nuclear Science & Technology Department Center
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
- Department of Chemistry
| |
Collapse
|
9
|
|
10
|
Liu Z, Chen X, Yu L, Zhen X, Zhang A. Synthesis and pharmacological investigation of novel 2-aminothiazole-privileged aporphines. Bioorg Med Chem 2008; 16:6675-81. [DOI: 10.1016/j.bmc.2008.05.077] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Revised: 05/29/2008] [Accepted: 05/30/2008] [Indexed: 11/15/2022]
|
11
|
Qian X, Li Z, Yang Q. Highly efficient antitumor agents of heterocycles containing sulfur atom: Linear and angular thiazonaphthalimides against human lung cancer cell in vitro. Bioorg Med Chem 2007; 15:6846-51. [PMID: 17707644 DOI: 10.1016/j.bmc.2007.07.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Revised: 07/02/2007] [Accepted: 07/06/2007] [Indexed: 10/23/2022]
Abstract
A novel series of aminothiazonaphthalimides, A(1-2) and B(1-2), has been regioselectively synthesized. The linear compounds B(1-2) were evaluated to be far more active than their angular isomers A(1-2) in antitumor evaluation. The linear compounds C-F, derived from compound B(1), all showed highly efficient antitumor activities against A549 and P388 cell lines. Also, cytotoxicities of these four analogues against two tumor cells were highly dependent on the length of the side chains. The compound A(1) or B(1), with two methylene units in the side chain, was more cytotoxic than its corresponding homologue A(2) or B(2), with one more methylene unit.
Collapse
Affiliation(s)
- Xuhong Qian
- State Key Laboratory of Bioreactor Engineering and Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China.
| | | | | |
Collapse
|
12
|
Dolle RE, Michaut M, Martinez-Teipel B, Belanger S, Graczyk TM, DeHaven RN. Further studies of tyrosine surrogates in opioid receptor peptide ligands. Bioorg Med Chem Lett 2007; 17:2656-60. [PMID: 17350835 DOI: 10.1016/j.bmcl.2007.01.092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2006] [Revised: 01/29/2007] [Accepted: 01/30/2007] [Indexed: 10/23/2022]
Abstract
A series of opioid peptide ligands containing modified N-terminal tyrosine (Tyr) residues was prepared and evaluated against cloned human mu, delta, and kappa opioid receptors. This work extends the recent discovery that (S)-4-carboxamidophenylalanine (Cpa) is an effective tyrosine bioisostere. Amino acids containing negatively charged functional groups in place of tyrosine's phenolic hydroxyl lacked receptor affinity, while exchange of Tyr for (S)-4-aminophenylalanine was modestly successful. Peptides containing the new amino acids, (S)-4-carboxamido-2,6-dimethylphenylalanine (Cdp) and (S)-beta-(2-aminobenzo[d]thiazol-6-yl)alanine (Aba), displayed binding (K(i)) and functional (EC(50)) profiles comparable to the parent ligands at the three receptors. Cdp represents the best performing Tyr surrogate in terms of overall activity, while Cpa and Aba show a subtle proclivity toward the delta receptor.
Collapse
MESH Headings
- Chemistry, Pharmaceutical/methods
- Cloning, Molecular
- Drug Design
- Humans
- Hydrogen Bonding
- Kinetics
- Ligands
- Models, Chemical
- Molecular Conformation
- Peptides/chemistry
- Receptors, Opioid/chemistry
- Receptors, Opioid, delta/chemistry
- Receptors, Opioid, kappa/chemistry
- Receptors, Opioid, mu/chemistry
- Tyrosine/chemistry
Collapse
Affiliation(s)
- Roland E Dolle
- Department of Chemistry, Adolor Corporation, 700 Pennsylvania Drive, Exton, PA 19341, USA.
| | | | | | | | | | | |
Collapse
|
13
|
|
14
|
Boeckler F, Gmeiner P. The structural evolution of dopamine D3 receptor ligands: structure-activity relationships and selected neuropharmacological aspects. Pharmacol Ther 2006; 112:281-333. [PMID: 16905195 DOI: 10.1016/j.pharmthera.2006.04.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2006] [Accepted: 04/13/2006] [Indexed: 01/13/2023]
Abstract
"Evolution consists largely of molecular tinkering."-Following the famous concept of the molecular geneticist and medicine Nobel laureate François Jacob, in this review we describe the structural evolution of dopamine D3 receptor ligands from the natural agonist dopamine (DA) to highly potent and subtype selective new agents by bioisosteric tinkering with well-established and privileged or novel and fancy chemical functionalities and scaffolds. Some of the more than 200 ligands presented herein have already achieved therapeutic or scientific value up to now, some will most likely achieve it in the future. Hence, great importance is not only attached to the relationship between structure and activity of the ligands, but also to their utility as pharmacological tools in animal models or as therapeutics in patients with neurological diseases or other disorders.
Collapse
Affiliation(s)
- Frank Boeckler
- Department of Medicinal Chemistry, Emil Fischer Center, Friedrich-Alexander University Erlangen-Nürnberg, Schuhstrasse 19, 91052 Erlangen, Germany.
| | | |
Collapse
|
15
|
Chakrabarty M, Kundu T, Arima S, Harigaya Y. An expedient, regioselective synthesis of 2-alkylamino- and 2-alkylthiothiazolo[5,4-e]indoles. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.02.125] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
16
|
Li Z, Yang Q, Qian X. Novel 2-aminothiazonaphthalimides as visible light activatable photonucleases: effects of intercalation, heterocyclic-fused area and side chains. Bioorg Med Chem Lett 2005; 15:1769-72. [PMID: 15780603 DOI: 10.1016/j.bmcl.2005.02.053] [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: 12/24/2004] [Revised: 02/15/2005] [Accepted: 02/17/2005] [Indexed: 11/27/2022]
Abstract
A new family of 2-aminothiazonaphthalimides with different side chains as novel intercalative and visible light activatable photonucleases, was designed, synthesized and quantitatively evaluated. The order of their photocleaving abilities was parallel to that of their intercalative properties. The compound with linear heterocyclic-fused chromophore could intercalate into and photocleave DNA more efficiently than the one with angular heterocyclic-fused chromophore. B(2), the most efficient compound, caused obvious DNA damage at 1 microM. Mechanism experiment showed that superoxide anion was involved.
Collapse
Affiliation(s)
- Zhigang Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, PO Box 158, Zhongshan Road, Dalian 116012, China
| | | | | |
Collapse
|
17
|
Zhang A, Xiong W, Hilbert JE, DeVita EK, Bidlack JM, Neumeyer JL. 2-aminothiazole-derived opioids. Bioisosteric replacement of phenols. J Med Chem 2004; 47:1886-8. [PMID: 15055988 DOI: 10.1021/jm049978n] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of aminothiazole-derived morphinans, benzomorphans, and morphine were synthesized. Although their affinities were somewhat lower than their phenol prototypes, one compound (9a, ATPM) has been identified possessing high affinity and selectivity at the kappa receptor. Functional assays showed that 9a was a full kappa but partial mu agonist; the efficacy at kappa was significantly greater than at mu receptors. This novel compound may be valuable for the development of long-acting analgesics and drug abuse medication.
Collapse
Affiliation(s)
- Ao Zhang
- Alcohol and Drug Abuse Research Center, McLean Hospital, Harvard Medical School, 115 Mill Street, Belmont, MA 02478, USA
| | | | | | | | | | | |
Collapse
|
18
|
Mach UR, Hackling AE, Perachon S, Ferry S, Wermuth CG, Schwartz JC, Sokoloff P, Stark H. Development of Novel 1,2,3,4-Tetrahydroisoquinoline Derivatives and Closely Related Compounds as Potent and Selective Dopamine D3 Receptor Ligands. Chembiochem 2004; 5:508-18. [PMID: 15185375 DOI: 10.1002/cbic.200300784] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Based on N-alkylated 1,2,3,4-tetrahydroisoquinoline derivatives, which are structurally related to the partial agonist BP 897, a series of novel, selective dopamine D3 receptor antagonists has been synthesised. Derivatisation included changes in the arylamide moiety and the tetrahydroisoquinoline substructure leading to compounds with markedly improved selectivities and affinities in the low nanomolar concentration range. From the 55 structures presented here, (E)-3-(4-iodophenyl)-N-(4-(1,2,3,4-tetrahydroisoquinolin-2-yl)butyl)acrylamide (51) has high affinity (Ki(hD3)=12 nM) and a 123-fold preference for the D3 receptor relative to the D2 receptor subtype. Its pharmacological profile offers the prospect of a novel radioligand as a tool for various dopamine D3-receptor-related in vitro and in vivo investigations.
Collapse
Affiliation(s)
- Ulrich R Mach
- Institut für Pharmazeutische Chemie, Johann Wolfgang Goethe-Universität, Marie Curie Strasse 9, 60439 Frankfurt am Main, Germany
| | | | | | | | | | | | | | | |
Collapse
|
19
|
|
20
|
Enyedy IJ, Sakamuri S, Zaman WA, Johnson KM, Wang S. Pharmacophore-based discovery of substituted pyridines as novel dopamine transporter inhibitors. Bioorg Med Chem Lett 2003; 13:513-7. [PMID: 12565962 DOI: 10.1016/s0960-894x(02)00943-5] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Abnormal dopamine signaling in brain has been implicated in several conditions such as cocaine abuse, Parkinson's disease and depression. Potent and selective dopamine transporter inhibitors may be useful as pharmacological tools and therapeutic agents. Simple substituted pyridines were discovered as novel dopamine transporter (DAT) inhibitors through pharmacophore-based 3D-database search. The most potent compound 18 has a K(i) value of 79 nM in inhibition of WIN35,248 binding to dopamine transporter and 255 nM in inhibition of dopamine reuptake, respectively, as potent as cocaine. Preliminary structure-activity relationship studies show that the geometry and the nature of the substituents on the pyridine ring determine the inhibitory activity and selectivity toward the three monoamine transporters. The substituted pyridines described herein represent a class of novel DAT inhibitors with simple chemical structures and their discovery provides additional insights into the binding site of DAT.
Collapse
Affiliation(s)
- Istvan J Enyedy
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109-0934, USA
| | | | | | | | | |
Collapse
|
21
|
Klintenberg R, Arts J, Jongsma M, Wikström H, Gunne L, Andrén PE. Motor effects of a dopamine stabilizer (GMC1111) in primate models of Parkinson and hemiparkinsonism. Eur J Pharmacol 2003; 459:231-7. [PMID: 12524151 DOI: 10.1016/s0014-2999(02)02817-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effects on motor behavior of a new potential dopamine stabilizer: 2-amino-6-(N,N-di-n-propylamino)thiazolo[4,5-f]indan (GMC1111) were investigated in common marmosets with 6-hydroxydopamine lesions within the median forebrain bundle (12 unilateral, 6 bilateral). GMC1111 was administered orally or subcutaneously (s.c.) to unilaterally 6-hydroxydopamine lesioned monkeys, either alone or together with s.c. injections of apomorphine (0.2 mg/kg) and the effect on rotational behavior was examined. GMC1111 (0.03-3.0 mg/kg) alone, orally or s.c., did not induce rotational behavior. When apomorphine and GMC1111 were injected simultaneously, rotations were nearly abolished in three monkeys with a baseline apomorphine-induced rotation rate below 13/min, whereas GMC1111 did not modify the rotations in three high-rotating animals (>17/min). Oral administration of GMC1111 (1.0 and 3.0 mg/kg) abolished the apomorphine-induced rotations in another six unilaterally dopamine-denervated monkeys, indicating a good oral bioavailability. A low dose of GMC1111 (0.3 mg/kg) administered s.c. to marmosets with bilateral nigrostriatal lesions produced a reduction of Parkinson symptoms of approximately the same degree as with levodopa/benserazide (15/3.75 mg/kg), while higher doses of GMC1111 were less effective. When levodopa/benserazide was administered together with various doses of GMC1111 (0.3-3.0 mg/kg), the levodopa-induced peak-dose dyskinesias were reduced with the highest dose of GMC1111 (3 mg/kg). Taken together, GMC1111 modifies dopaminergic activity in a normalizing direction. Parkinson symptoms, as well as levodopa-induced dyskinesias are both reduced. This suggests the arrival of another member of the new dopamine stabilizer family.
Collapse
Affiliation(s)
- Rebecka Klintenberg
- Department of Pharmaceutical Biosciences, Uppsala University, PO Box 591, Biomedicum, SE-75124, Uppsala, Sweden
| | | | | | | | | | | |
Collapse
|