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Yilmaz DG, Aydogan F, Yolacan C. An investigation of chiral diamides as organocatalysts in asymmetric aldol reaction. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dilek Gul Yilmaz
- Department of Chemistry Yildiz Technical University, Davutpasa Campus, 34010 Esenler Istanbul Turkey
| | - Feray Aydogan
- Department of Chemistry Yildiz Technical University, Davutpasa Campus, 34010 Esenler Istanbul Turkey
| | - Cigdem Yolacan
- Department of Chemistry Yildiz Technical University, Davutpasa Campus, 34010 Esenler Istanbul Turkey
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Novel Synthetic Approaches for Bisnaphthalimidopropyl (BNIP) Derivatives as Potential Anti-Parasitic Agents for the Treatment of Leishmaniasis. Molecules 2019; 24:molecules24244607. [PMID: 31888250 PMCID: PMC6943546 DOI: 10.3390/molecules24244607] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 12/17/2022] Open
Abstract
Leishmaniasis is a neglected parasitic disease that is widely seen in more than 60 countries worldwide, including Turkey and its subcontinental region. There are several chemotherapy agents for the treatment of leishmaniasis, including pentavalent antimonials—i.e., sodium stibogluconate (Pentostan) and meglumine antimoniate (Glucantim), pentamidine, conventional amphotericin B deoxycholate, miltefosine, paramomycin (aminosidine), and liposomal amphotericin B. However, these therapies are usually unsatisfactory due to dose-limiting toxicity issues and limited efficacy. Furthermore, resistance gained by parasites endangers future success of these therapies. Addressing these issues, the development of novel drugs with high efficacy has a vital importance. Latest studies have shown that bisnaphthalimidopropyl (BNIP) derivatives display high activity against Leishmaniasis parasites by selectively targeting parasitic sirtuin proteins and interacting with DNA. Despite the promising anti-parasitic activity, the low solubility and toxicity on human macrophages are the limitations to overcome. This study describes the new synthesis strategies for existing—i.e., BNIPDaoct and BNIPDanon—and novel BNIP derivatives differing in respect of their alkyl linker chain lengths. The new synthesis approach provides certain advantages compared to its existing alternatives reported in the literature. The proposed methodology does not only decrease the number of synthesis steps and production time of BNIPDaoct and BNIPDanon, but also provides higher yields, thereby making the synthesis highly cost-effective.
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Wu J, Zhu H, Yang G, He J, Wang Y, Zhao S, Zhang X, Gui L, Zhao M, Peng S. Design and synthesis of nanoscaled IQCA-TAVV as a delivery system capable of antiplatelet activation, targeting arterial thrombus and releasing IQCA. Int J Nanomedicine 2018; 13:1139-1158. [PMID: 29520141 PMCID: PMC5833776 DOI: 10.2147/ijn.s150205] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Arterial thrombosis has been associated with a series of pathological conditions, and the discovery of arterial thrombosis inhibitor is of clinical importance. METHODS By analyzing the pharmacophores of anti-platelet agents, thrombus targeting peptide and anti-thrombotic nano-systems 3S-1,2,3,4-tetrahydroisoquino-line-3-carbonyl-Thr-Ala-Arg-Gly-Asp(Val)-Val (IQCA-TAVV) was designed and prepared as a nano-scaled arterial thrombosis inhibitor. RESULTS In vitro the nanoparticles of IQCA-TAVV were able to adhere onto the surface of activated platelets, attenuate activated platelets to extend pseudopodia and inhibit activated platelets to form aggregators. In vivo IQCA-TAVV targeted arterial thrombus, dose dependently inhibited arterial thrombosis with a 1 nmol/kg of minimal effective dose, and the activity waŝ1670 folds of that of aspirin. CONCLUSION IQCA-TAVV represented the design, preparation and application of nanomedicine capable of adhering on the surface of activated platelets, attenuating platelet activation, targeting arterial thrombus and inhibiting arterial thrombosis.
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Affiliation(s)
- Jianhui Wu
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Haimei Zhu
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Guodong Yang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
| | - Jianhong He
- Department of Internal Medicine of TCM, The First Affiliated Hospital of Guanxi University of Chinese Medicine, Nanning, China
| | - Yuji Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Shurui Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Xiaoyi Zhang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Lin Gui
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Ming Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shiqi Peng
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
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Wang X, Wang Y, Wu J, Gui L, Zhang X, Zheng M, Wang Y, Zhao S, Li Z, Zhao M, Peng S. Docking based design of diastereoisomeric MTCA as GPIIb/IIIa receptor inhibitor. Bioorg Med Chem Lett 2017; 27:5114-5118. [PMID: 29108753 DOI: 10.1016/j.bmcl.2017.10.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/23/2017] [Accepted: 10/27/2017] [Indexed: 12/17/2022]
Abstract
In GPIIb/IIIa mediated arterial thrombosis platelet activation plays a central role. To discover platelet activation inhibitor the pharmacophores of GPIIb/IIIa receptor inhibitors and anti-thrombotic agents were analyzed. This led to the design of (1R,3S)- and (1S,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acids as GPIIb/IIIa inhibitors. Comparing to (1S,3S)-isomer (1R,3S)-isomer had lower cdocker interaction energy. AFM image showed that the minimal effective concentration of (1S,3S)-isomer and (1R,3S)-isomer inhibiting platelet activation were 10-5 M and 10-6 M, respectively. In vivo 1 μmol/kg of oral (1S,3S)-isomer effectively inhibited the rats to form arterial thrombus and down regulated GPIIb/IIIa expression, but the activities were significantly lower than those of 1 μmol/kg of oral (1R,3S)-isomer. Both (1S,3S)-isomer and (1R,3S)-isomer can be safely used for structural modifications, but (1R,3S)-isomer should be superior to (1S,3S)-isomer.
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Affiliation(s)
- Xiaozhen Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Yuji Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Jianhui Wu
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Lin Gui
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Xiaoyi Zhang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Meiqing Zheng
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Yaonan Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Shurui Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Ze Li
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Ming Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Shiqi Peng
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China.
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Viveros-Ceballos JL, Ordóñez M, Sayago FJ, Jiménez AI, Cativiela C. First Synthesis of (R)- and (S)-1,2,3,4-Tetrahydroisoquinoline-3-phosphonic Acid (TicP) Using a Pictet-Spengler Reaction. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600313] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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6
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Kotha S, Misra S, Gopal Krishna N, Bandi V, Saifuddin M, Devunuri N. Diversity-Oriented Approach to 1,2,3,4-Tetrahydroisoquinoline-3-carboxylic Acid (Tic) Derivatives. HETEROCYCLES 2016. [DOI: 10.3987/com-15-s(t)16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Kotha S, Deodhar D, Khedkar P. Diversity-oriented synthesis of medicinally important 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) derivatives and higher analogs. Org Biomol Chem 2015; 12:9054-91. [PMID: 25299735 DOI: 10.1039/c4ob01446d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid (Tic) is a constrained analog of phenylalanine (Phe). The Tic unit has been identified as a core structural element present in several peptide-based drugs and forms an integral part of various biologically active compounds. This report covers the biological significance of the Tic core and provides a detailed account of various synthetic approaches available for the construction of Tic derivatives. Along with the traditional methods such as the Pictet-Spengler and Bischler-Nepieralski reactions, we cover various recent approaches such as enyne metathesis, [2 + 2 + 2] cycloaddition and the Diels-Alder reaction to generate Tic derivatives. In addition, syntheses of higher analogs of Tic are also discussed.
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai, Mumbai - 400 076, India.
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Okuda K, Hirota T, Sasaki K. Polycyclic N-Heterocyclic Compounds. Part 79: Synthesis of 2,4-Disubstituted 6,7-Dihydro-5 H-benzo[6,7]cyclohepta[1,2- d]pyrimidines as Potential Antiplatelet Aggregators. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Kenji Sasaki
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
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Okuda K, Itzuji Y, Hirota T. Polycyclic N-Heterocyclic Compounds. Part 81: Synthesis and Evaluation of Pentacyclic 1,2,4,5-Tetrahydro[1]benzothieno[2′,3′:6,7]thiepino[4,5- e]imidazo[1,2- c]pyrimidine and Related Compounds as Potential Antiplatelet Aggregators. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Yutaka Itzuji
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku, Okayama 700-8530 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku, Okayama 700-8530 Japan
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10
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Okuda K, Zhang YX, Hirota T, Sasaki K. PolycyclicN-Heterocyclic Compounds. Part 85: Synthesis and Evaluation of Antiplatelet Aggregation Activity of 2,4-Disubstituted 5,6-Dihydro[1]benzazepino[5,4-d]pyrimidine and Related Compounds. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Ying-Xue Zhang
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Kenji Sasaki
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
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11
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Yolacan C, Mavis ME, Aydogan F. Evaluation of mono- and dipeptides as organocatalysts for enantioselective aldol reaction. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Okuda K, Takarada S, Hirota T, Sasaki K. PolycyclicN-Heterocyclic Compounds. Part 86: Synthesis and Evaluation of Antiplatelet Aggregation Activity of 2,4-Disubstituted 9-Chloro-5,6-dihydropyrimido[5,4-d]benzazepine and Related Compounds. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Shigeki Takarada
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Kenji Sasaki
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
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Okuda K, Takano JI, Hirota T, Sasaki K, Nishina Y, Ishida H. Polycyclic N-Heterocyclic Compounds 76: Synthesis and Antiplatelet Evaluation of 2,4-Disubstituted 5,6-Dihydro[1]benzofuro[3′,2′:2,3]oxepino[4,5- d]pyrimidines. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Jun-ichi Takano
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Kenji Sasaki
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Yuta Nishina
- Research Core for Interdisciplinary Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Hiroyuki Ishida
- Department of Chemistry, Faculty of Science; Okayama University; Kita-ku Okayama 700-8530 Japan
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Okuda K, Zhang YX, Hirota T, Sasaki K. Polycyclic N-Heterocyclic Compounds. Part 78: Synthesis of N-[2-([1,2,4]Oxadiazol-5-yl)cyclohepten-1-yl]formamide Oximes and Their Evaluation as Inhibitors of Platelet Aggregation. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Ying-Xue Zhang
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Okayama 700-8530 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Okayama 700-8530 Japan
| | - Kenji Sasaki
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Okayama 700-8530 Japan
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Okuda K, Yamamoto Y, Hirota T, Sasaki K. PolycyclicN-Heterocyclic Compounds. Part 75: Synthesis of 2,4-Disubstituted 5,6-dihydro[1]benzoxepino[5,4-d]pyrimidines and 12-Substituted 1,2,4,5-Tetrahydro[1]benzoxepino[4,5-e]imidazo[1,2-c]pyrimidines as Potential Antiplatelet Aggregators. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Yuko Yamamoto
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Kenji Sasaki
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
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Okuda K, Hirota T, Sasaki K. PolycyclicN-Heterocyclic Compounds. Part 82: Synthesis and Evaluation of Anti-Platelet Aggregation Activity of 2,4-Disubstituted 5,6-Dihydro[1]benzothiepino[5,4-d]pyrimidine and Related Compounds. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1741] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kensuke Okuda
- Laboratory of Medicinal and Pharmaceutical Chemistry; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Takashi Hirota
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
| | - Kenji Sasaki
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences; Okayama University; Kita-ku Okayama 700-8530 Japan
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Okuda K, Nikaido T, Hirota T, Sasaki K. PolycyclicN-Heterocyclic Compounds, Part 77: Synthesis of [1]Benzothieno[3′,2′:2,3]oxepino[4,5-d]pyrimidines and Evaluation of Their Antiplatelet Aggregation Activity. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.656295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Verardo G, Gorassini A. α-N
-Protected dipeptide acids: a simple and efficient synthesis via the easily accessible mixed anhydride method using free amino acids in DMSO and tetrabutylammonium hydroxide. J Pept Sci 2013; 19:315-24. [DOI: 10.1002/psc.2503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 01/02/2013] [Accepted: 01/02/2013] [Indexed: 11/07/2022]
Affiliation(s)
- G. Verardo
- Dipartimento di Chimica, Fisica e Ambiente; Università di Udine; Via del Cotonificio 108 I-33100 Udine Italy
| | - A. Gorassini
- Dipartimento di Storia e Tutela dei Beni Culturali; Università di Udine; Palazzo Caiselli, Vicolo Florio 2 I-33100 Udine Italy
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Yang G, Zhu H, Zhao M, Wu J, Wang Y, Wang Y, Zheng M, Chen M, Liu J, Peng S. The application of tetrahydroisoquinoline-3-carbonyl-TARGD(F)F as an anti-thrombotic agent having dual mechanisms of action. MOLECULAR BIOSYSTEMS 2013; 8:2672-9. [PMID: 22801714 DOI: 10.1039/c2mb25112d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Platelet surface glycoproteins P-selectin and GPIIb/IIIa are implicated in the formation of platelet-fibrin-leukocyte thrombus and platelet-fibrin-platelet thrombus, respectively. In the current study, taking N-(3S-tetrahydroisoquinoline-3-carbonyl)-Thr-Ala-Arg-Gly-Asp-(Phe)-Phe (IQCA-TAFF) as a model compound, the molecular modeling, synthesis, and an evaluation system for a novel anti-thrombotic agent were investigated. The synthesis of IQCA-TAFF was achieved by coupling 3S-tetrahydro-isoquinoline-3-carboxylic acid (IQCA) and Thr-Ala-Arg-Gly-Asp(Phe)-Phe (TAFF). The molecular modeling indicated that IQCA-TAFF was able to occupy the active site pocket of P-selectin with its IQCA moiety and to block GPIIb/IIIa fibrinogen-binding sites with its TAFF moiety, respectively. These are consistent with the dual inhibition of the expressions of P-selectin and GPIIb/IIIa, and with the in vitro anti-platelet aggregation activity of IQCA-TAFF. Besides, the dual suppression of P-selectin and GPIIb/IIIa leads to significant in vivo efficacy of IQCA-TAFF, 500-fold higher than those of IQCA and TAFF, respectively. Transmission electron microscopy (TEM) images indicated that in water, IQCA-TAFF concentration-dependently formed nano-globes. The molecular modeling, in vitro bioassay, in vivo bioassay, action mechanism investigation, and nano-image visualization together constitute a model system to characterize the anti-thrombotic agent capable of simultaneously inhibiting P-selectin and GPIIb/IIIa mediated thrombosis.
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Affiliation(s)
- Guodong Yang
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, P.R. China.
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Quintiliano SA, Silva LF. Practical synthesis of a functionalized 1-oxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Al-Horani RA, Mehta AY, Desai UR. Potent direct inhibitors of factor Xa based on the tetrahydroisoquinoline scaffold. Eur J Med Chem 2012; 54:771-83. [PMID: 22770607 DOI: 10.1016/j.ejmech.2012.06.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 06/12/2012] [Accepted: 06/15/2012] [Indexed: 12/31/2022]
Abstract
Direct inhibition of coagulation factor Xa (FXa) carries significant promise for developing effective and safe anticoagulants. Although a large number of FXa inhibitors have been studied, each can be classified as either possessing a highly flexible or a rigid core scaffold. We reasoned that an intermediate level of flexibility will provide high selectivity for FXa considering that its active site is less constrained in comparison to thrombin and more constrained as compared to trypsin. We studied several core scaffolds including 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid for direct FXa inhibition. Using a genetic algorithm-based docking and scoring approach, a promising candidate 23 was identified, synthesized, and found to inhibit FXa with a K(i) of 28 μM. Optimization of derivative 23 resulted in the design of a potent dicarboxamide 47, which displayed a K(i) of 135 nM. Dicarboxamide 47 displayed at least 1852-fold selectivity for FXa inhibition over other coagulation enzymes and doubled PT and aPTT of human plasma at 17.1 μM and 20.2 μM, respectively, which are comparable to those of clinically relevant agents. Dicarboxamide 47 is expected to serve as an excellent lead for further anticoagulant discovery.
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Affiliation(s)
- Rami A Al-Horani
- Department of Medicinal Chemistry and Institute for Structural Biology and Drug Discovery, Virginia Commonwealth University, Richmond, VA 23298, USA
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22
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Electronically Rich N-Substituted Tetrahydroisoquinoline 3-Carboxylic Acid Esters: Concise Synthesis and Conformational Studies. Tetrahedron 2012; 68:2027-2040. [PMID: 22665943 DOI: 10.1016/j.tet.2012.01.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent work in our laboratory has shown that the highly substituted, electronically rich 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (THIQ3CA) scaffold is a key building block for a novel class of promising anticoagulants (Al-Horani et al. J. Med. Chem.2011, 54, 6125-6138). The synthesis of THIQ3CA analogs, especially containing specific, electronically rich substituents, has been a challenge and essentially no efficient methods have been reported in the literature. We describe three complementary, glycine donor-based strategies for high yielding synthesis of highly substituted, electronically rich THIQ3CA esters. Three glycine donors studied herein include hydantoin 1, (±)-Boc-α-phosphonoglycine trimethyl ester 2 and (±)-Z-α-phosphonoglycine trimethyl ester 3. Although the synthesis of THIQ3CA analogs could be achieved using either of the three, an optimal, high yielding approach for the desired THIQ3CA esters was best achieved using 3 in three mild, efficient steps. Using this approach, a focused library of advanced N-arylacyl, N-arylalkyl, and bis-THIQ3CA analogs was synthesized. Variable temperature and solvent-dependent NMR chemical shift studies indicated the presence of two major conformational rotamers in 3:1 proportion for N-arylacyl-THIQ3CA analogs, which were separated by a high kinetic barrier of ~17 kcal/mol. In contrast, N-arylalkyl and bis-THIQ3CA variants displayed no rotamerism, which implicates restricted rotation around the amide bond as the origin for high-barrier conformational interconversion. This phenomenon is of major significance because structure-based drug design typically utilizes only one conformation. Overall, the work presents fundamental studies on the synthesis and conformational properties of highly substituted, electronically rich THIQ3CA analogs.
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23
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Design, synthesis and biological evaluation of novel 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid derivatives as aminopeptidase N/CD13 inhibitors. Bioorg Med Chem 2011; 19:6015-25. [DOI: 10.1016/j.bmc.2011.08.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 08/18/2011] [Accepted: 08/19/2011] [Indexed: 12/30/2022]
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24
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2-Substituted (S)-2-(3,3-dimethyl-1-oxo-10,10a-dihydroimidazo[1,5-b]isoquinolin-2(1H,3H,5H)-yl)acetic acids: Conformational prediction, synthesis, anti-thrombotic and vasodilative evaluation. Bioorg Med Chem 2011; 19:871-82. [DOI: 10.1016/j.bmc.2010.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 12/01/2010] [Accepted: 12/02/2010] [Indexed: 11/19/2022]
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25
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Kawthekar RB, Chakka SK, Francis V, Andersson PG, Kruger HG, Maguire GE, Govender T. Synthesis of tetrahydroisoquinoline (TIQ)–oxazoline ligands and their application in enantioselective Henry reactions. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.04.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Zhang X, Wang W, Cheng S, Zhao M, Zheng M, Chang HW, Wu J, Peng S. 2,3-Diamino acid modifying 3S-tetrahydroisoquinoline-3-carboxylic acids: leading to a class of novel agents with highly unfolded conformation, selective in vitro anti-platelet aggregation and potent in vivo anti-thrombotic activity. Bioorg Med Chem 2010; 18:1536-54. [PMID: 20122838 DOI: 10.1016/j.bmc.2010.01.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Revised: 01/01/2010] [Accepted: 01/05/2010] [Indexed: 10/20/2022]
Abstract
In the preparation of anti-thrombotic agents the 2- and 3-positions of 3S-tetra-hydroisoquinoline-3-carboxylic acid (THIQA) were simultaneously modified with amino acids to form 20 novel N-(3S-N-aminoacyl-1,2,3,4-tetrahydroisoquinoline-3-carbonyl)amino acids (8a-t). On an in vitro platelet aggregation model 8a-t selectively inhibit ADP-induced platelet aggregation and their IC(50) values are leas than 3.5 nM. On an extracorporeal circulation of arterioveinos cannula model of rats both orally and intraveously effective doses of 8a-t are less than 30 nmol/kg. Cerius(2) based stereoview of explores 8a-t having highly unfolded conformation. 3D QSAR analysis gives the importance of the unfolded conformation to high in vitro anti-platelet aggregation and in vivo anti-thrombotic potency rational understanding.
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Affiliation(s)
- Xiaoyi Zhang
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
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