1
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Guo F, Shan S, Gong X, Dai C, Quan Z, Cheng X, Fan X. Deuteration Degree-Controllable Methylation via a Cascade Assembly Strategy using Methylamine-Water as Methyl Source. Chemistry 2023; 29:e202301458. [PMID: 37222652 DOI: 10.1002/chem.202301458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 05/25/2023]
Abstract
We present a novel and effective photocatalytic method for the methylation of β-diketones with controllable degrees of deuterium incorporation via development of new methyl sources. By utilizing a methylamine-water system as the methyl precursor and a cascade assembly strategy for deuteration degree control, we synthesized methylated compounds with varying degrees of deuterium incorporation, showcasing the versatility of this approach. We examined a range of β-diketone substrates and synthesized key intermediates for drug and bioactive compounds with varying degrees of deuterium incorporation, ranging from 0 to 3. We also investigated and discussed the postulated reaction pathway. This work demonstrates the utility of readily available reagents, methylamines and water, as a new methyl source, and provides a simple and efficient strategy for the synthesis of degree-controllable deuterium-labelled compounds.
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Affiliation(s)
- Fuhu Guo
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, China
- Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Shiquan Shan
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xu Gong
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Cancan Dai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhengjun Quan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Xiamin Cheng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xinyuan Fan
- Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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2
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Ahmed MN, Madni M, Anjum S, Andleeb S, Hameed S, Khan AM, Ashfaq M, Tahir MN, Gil DM, Frontera A. Crystal engineering with pyrazolyl-thiazole derivatives: structure-directing role of π-stacking and σ-hole interactions. CrystEngComm 2021. [DOI: 10.1039/d1ce00256b] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The structure-directing role of a variety of noncovalent interactions in the solid state of pyrazolyl-thiazole derivatives has been analyzed energetically using DFT calculations and by means of Hirshfeld surface analysis.
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Affiliation(s)
- Muhammad Naeem Ahmed
- Department of Chemistry
- The University of Azad Jammu and Kashmir
- Muzaffarabad
- 13100 Pakistan
| | - Murtaza Madni
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | - Shaista Anjum
- Department of Chemistry
- The University of Azad Jammu and Kashmir
- Muzaffarabad
- 13100 Pakistan
| | - Saiqa Andleeb
- Department of Zoology
- The University of Azad Jammu and Kashmir
- Muzaffarabad
- 13100 Pakistan
| | - Shahid Hameed
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | - Abdul Majeed Khan
- Research Laboratory of Bioenergy
- Department of Chemistry
- Federal Urdu University of Arts, Science and Technology
- Karachi-75300
- Pakistan
| | | | | | - Diego M. Gil
- INBIOFAL (CONICET – UNT)
- Instituto de Química Orgánica
- Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
| | - Antonio Frontera
- Department of Quimica
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
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3
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Bakthavatchala Reddy N, Zyryanov GV, Mallikarjuna Reddy G, Balakrishna A, Padmaja A, Padmavathi V, Suresh Reddy C, Garcia JR, Sravya G. Design and Synthesis of Some New Benzimidazole Containing Pyrazoles and Pyrazolyl Thiazoles as Potential Antimicrobial Agents. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3435] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Grigory V. Zyryanov
- Chemical Engineering Institute; Ural Federal University; Yekaterinburg 620002 Russia
- Ural Division of the Russian Academy of Sciences; I. Ya. Postovskiy Institute of Organic Synthesis; 22 S. Kovalevskoy Street Yekaterinburg 620219 Russia
| | - Guda Mallikarjuna Reddy
- Chemical Engineering Institute; Ural Federal University; Yekaterinburg 620002 Russia
- Department of Chemistry; State University of Ponta Grossa; Ponta Grossa 84030-900 Parana Brazil
| | - Avula Balakrishna
- Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous); Nandyal 518501 Andhra Pradesh India
| | - Adivireddy Padmaja
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| | | | - Cirandur Suresh Reddy
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| | - Jarem Raul Garcia
- Department of Chemistry; State University of Ponta Grossa; Ponta Grossa 84030-900 Parana Brazil
| | - Gundala Sravya
- Chemical Engineering Institute; Ural Federal University; Yekaterinburg 620002 Russia
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4
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Discovery of a novel 2-(1 H -pyrazolo[3,4- b ]pyridin-1-yl)thiazole derivative as an EP 1 receptor antagonist and in vivo studies in a bone fracture model. Bioorg Med Chem Lett 2018; 28:2408-2412. [DOI: 10.1016/j.bmcl.2018.06.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/06/2018] [Accepted: 06/12/2018] [Indexed: 11/17/2022]
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5
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Recent advance in oxazole-based medicinal chemistry. Eur J Med Chem 2018; 144:444-492. [DOI: 10.1016/j.ejmech.2017.12.044] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/04/2017] [Accepted: 12/13/2017] [Indexed: 01/09/2023]
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6
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Discovery of novel pyrazolo[1,5-a]pyridine-based EP 1 receptor antagonists by scaffold hopping: Design, synthesis, and structure-activity relationships. Bioorg Med Chem Lett 2017; 27:4044-4050. [PMID: 28784294 DOI: 10.1016/j.bmcl.2017.07.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/09/2017] [Accepted: 07/20/2017] [Indexed: 11/22/2022]
Abstract
A scaffold-hopping strategy towards a new pyrazolo[1,5-a]pyridine based core using molecular hybridization of two structurally distinct EP1 antagonists, followed by structure-activity relationship-guided optimization, resulted in the identification of potent EP1 antagonists exemplified by 4c, 4f, and 4j, which were shown to reduce pathological intravesical pressure in rats when administered at 1mg/kg iv.
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7
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Umei K, Nishigaya Y, Tatani K, Kohno Y, Tanaka N, Seto S. Identification of novel 1,2,3,6-tetrahydropyridyl-substituted benzo[ d ]thiazoles: Lead generation and optimization toward potent and orally active EP 1 receptor antagonists. Bioorg Med Chem 2017; 25:3406-3430. [DOI: 10.1016/j.bmc.2017.04.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/18/2017] [Accepted: 04/21/2017] [Indexed: 01/13/2023]
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8
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Umei K, Nishigaya Y, Kondo A, Tatani K, Tanaka N, Kohno Y, Seto S. Novel pyrazolo[1,5- a ]pyridines as orally active EP 1 receptor antagonists: Synthesis, structure-activity relationship studies, and biological evaluation. Bioorg Med Chem 2017; 25:2635-2642. [DOI: 10.1016/j.bmc.2017.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 02/27/2017] [Accepted: 03/03/2017] [Indexed: 10/20/2022]
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9
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Zhou ZH, Li CK, Zhou SF, Shoberu A, Zou JP. Copper-catalyzed methylation of 1,3-diketones with tert-butyl peroxybenzoate. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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Zheng Y, Zhang X, Yao R, Wen Y, Huang J, Xu X. 1,3-Dipolar Cycloaddition of Alkyne-Tethered N-Tosylhydrazones: Synthesis of Fused Polycyclic Pyrazoles. J Org Chem 2016; 81:11072-11080. [DOI: 10.1021/acs.joc.6b02076] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yang Zheng
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science; Analysis and Testing Centre, Soochow University, Suzhou 215123, China
| | - Xiaolu Zhang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science; Analysis and Testing Centre, Soochow University, Suzhou 215123, China
| | - Ruwei Yao
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science; Analysis and Testing Centre, Soochow University, Suzhou 215123, China
| | - YueCheng Wen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science; Analysis and Testing Centre, Soochow University, Suzhou 215123, China
| | - Jingjing Huang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science; Analysis and Testing Centre, Soochow University, Suzhou 215123, China
| | - Xinfang Xu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science; Analysis and Testing Centre, Soochow University, Suzhou 215123, China
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11
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Kiyokawa K, Ito Y, Kakehi R, Ogawa T, Goto Y, Yoshimatsu M. Propargyl Hydrazides as Useful Intermediates Leading to Pyrazoles via Reaction with Certain Electrophiles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600708] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Kosuke Kiyokawa
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Yukiteru Ito
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Ryoma Kakehi
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Takahiro Ogawa
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Yusuke Goto
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
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12
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Ahmad P, Woo H, Jun KY, Kadi AA, Abdel-Aziz HA, Kwon Y, Rahman AFMM. Design, synthesis, topoisomerase I & II inhibitory activity, antiproliferative activity, and structure-activity relationship study of pyrazoline derivatives: An ATP-competitive human topoisomerase IIα catalytic inhibitor. Bioorg Med Chem 2016; 24:1898-908. [PMID: 26988802 DOI: 10.1016/j.bmc.2016.03.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 03/07/2016] [Accepted: 03/08/2016] [Indexed: 12/11/2022]
Abstract
A series of pyrazoline derivatives (5) were synthesized in 92-96% yields from chalcones (3) and hydrazides (4). Subsequently, topo-I and IIα-mediated relaxation and antiproliferative activity assays were evaluated for 5. Among the tested compounds, 5h had a very strong topo-I activity of 97% (Camptothecin, 74%) at concentration of 100 μM. Nevertheless, all the compounds 5a-5i showed significant topo II inhibitory activity in the range of 90-94% (Etoposide, 96%) at the same concentration. Cytotoxic potential of these compounds was tested in a panel of three human tumor cell lines, HCT15, BT474 and T47D. All the compounds showed strong activity against HCT15 cell line with IC50 at the range of 1.9-10.4 μM (Adriamycin, 23.0; Etoposide, 6.9; and Camptothecin, 7.1 μM). Moreover, compounds 5c, 5f and 5i were observed to have strong antiproliferative activity against BT474 cell lines. Since, compound 5d showed antiproliferative activity at a very low IC50 thus 5d was then selected to study on their mode of action with diverse methods of ATP competition assay, ATPase assay and DNA-topo IIα cleavable complex assay and the results revealed that it functioned as a ATP-competitive human topoisomerase IIα catalytic inhibitor. Further evaluation of endogenous topo-mediated DNA relaxation in cells has been conducted to find that, 5d inhibited endogenous topo-mediated pBR322 plasmid relaxation is more efficient (78.0 ± 4.7% at 50 μM) than Etoposide (36.0 ± 1.7% at 50 μM).
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Affiliation(s)
- Pervez Ahmad
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hyunjung Woo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Kyu-Yeon Jun
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Adnan A Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hatem A Abdel-Aziz
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; Department of Applied Organic Chemistry Department, National Research Center, Dokki, Cairo 12622, Egypt
| | - Youngjoo Kwon
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea.
| | - A F M Motiur Rahman
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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13
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Dawood KM, Eldebss TMA, El-Zahabi HSA, Yousef MH. Synthesis and antiviral activity of some new bis-1,3-thiazole derivatives. Eur J Med Chem 2015; 102:266-76. [PMID: 26291036 DOI: 10.1016/j.ejmech.2015.08.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 07/14/2015] [Accepted: 08/02/2015] [Indexed: 12/18/2022]
Abstract
Treatment of 3-phenyl-1,3-thiazolidin-4-one derivative 1 with phenylisothiocyanate in DMF, in the presence of potassium hydroxide, at room temperature gave the non-isolable potassium salt 2. The in-situ reaction of 2 with differently substituted N-aryl hydrazonoyl chlorides 3, 7a-d and 14a-d afforded the corresponding 2-(pyrazolyl)thiazolylimino-5-(thiadiazolylidene)thiazolidin-4-one derivatives 6, 10a-d and 17a-d, respectively. Reaction of 2 with further α-haloketones yielded the 4-(pyrazolyl)thiazolylimino-bis-thiazolidine derivatives 22, 25 and 26. Single crystal X-ray analysis was used in structure elucidation of the products. The in-vitro antiviral screening against four viruses (Poliovirus, Influenza A (H1N1) virus, Hepatitis B virus and Hepatitis C virus) for the obtained compounds was examined. Structure activity relationship (SAR) was also studied. The goal of the work was achieved in discovering a very active compound 10a as anti HCV agent (EC50 0.56 μM).
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Affiliation(s)
- Kamal M Dawood
- Department of Chemistry, Faculty of Science, University of Cairo, Giza 12613, Egypt.
| | - Taha M A Eldebss
- Department of Chemistry, Faculty of Science, University of Cairo, Giza 12613, Egypt
| | - Heba S A El-Zahabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Mahmoud H Yousef
- Department of Chemistry, Faculty of Science, University of Cairo, Giza 12613, Egypt
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14
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Kasiotis KM, Tzanetou EN, Stagos D, Fokialakis N, Koutsotheodorou E, Kouretas D, Haroutounian SA. Novel conformationally constrained pyrazole derivatives as potential anti-cancer agents. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2015. [DOI: 10.1515/znb-2015-0053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The synthesis of 17 novel conformationally constrained pyrazole derivatives is reported herein, along with the assessment of their anti-proliferative and anti-angiogenic activities. The evaluation of their inhibitory effect on cell proliferation against HepG2, HeLa, and MCF-7 cells revealed the pyrrolo[2,3-g]indazole 23 as a potent inhibitor of cell growth with IC50 values of 5 μm. Additionally, the inhibition of vascular endothelial growth factor by pyrazoles 20 and 23 (30 % and 35 %, respectively) in HeLa supernatant cells was evidenced. These findings highlight the usefulness of these compounds as potential scaffolds for the design and development of novel anti-cancer agents with pronounced anti-angiogenic activity.
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Affiliation(s)
- Konstantinos M. Kasiotis
- Laboratory of Pesticides Toxicology, Benaki Phytopathological Institute, Department of Pesticides Control and Phytopharmacy, 8 St. Delta Street, Athens, Kifissia 14561, Greece
| | - Evangelia N. Tzanetou
- Department of Animal Sciences and Aquaculture, Agricultural University of Athens, Iera odos 75, Athens 11855, Greece
| | - Dimitrios Stagos
- Department of Biochemistry and Biotechnology, University of Thessaly, 26 Ploutonos Street, 41221 Larissa, Greece
| | - Nikolas Fokialakis
- Faculty of Pharmacy, Department of Pharmacognosy and Natural Products Chemistry, University of Athens, Panepistimiopolis, Zografou 15771, Athens, Greece
| | - Eleni Koutsotheodorou
- Department of Biochemistry and Biotechnology, University of Thessaly, 26 Ploutonos Street, 41221 Larissa, Greece
| | - Dimitrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, 26 Ploutonos Street, 41221 Larissa, Greece
| | - Serkos A. Haroutounian
- Department of Animal Sciences and Aquaculture, Agricultural University of Athens, Iera odos 75, Athens 11855, Greece
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15
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Beno BR, Yeung KS, Bartberger MD, Pennington LD, Meanwell NA. A Survey of the Role of Noncovalent Sulfur Interactions in Drug Design. J Med Chem 2015; 58:4383-438. [DOI: 10.1021/jm501853m] [Citation(s) in RCA: 468] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Brett R. Beno
- Department of Computer-Assisted Drug Design, Bristol-Myers Squibb Research and Development, 5 Research Parkway Wallingford Connecticut 06492, United States
| | - Kap-Sun Yeung
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway Wallingford Connecticut 06492, United States
| | - Michael D. Bartberger
- Department of Therapeutic Discovery, Amgen Inc., One Amgen Center Drive Thousand Oaks California 91320, United States
| | - Lewis D. Pennington
- Department of Therapeutic Discovery, Amgen Inc., One Amgen Center Drive Thousand Oaks California 91320, United States
| | - Nicholas A. Meanwell
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway Wallingford Connecticut 06492, United States
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16
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Khloya P, Kumar S, Kaushik P, Surain P, Kaushik D, Sharma PK. Synthesis and biological evaluation of pyrazolylthiazole carboxylic acids as potent anti-inflammatory-antimicrobial agents. Bioorg Med Chem Lett 2015; 25:1177-81. [PMID: 25702850 DOI: 10.1016/j.bmcl.2015.02.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 01/23/2015] [Accepted: 02/04/2015] [Indexed: 11/25/2022]
Abstract
Current Letter presents design, synthesis and biological evaluation of a novel series of pyrazolylthiazole carboxylates 1a-1p and corresponding acid derivatives 2a-2p. All 32 novel compounds were tested for their in vivo anti-inflammatory activity by carrageenan-induced rat paw edema method as well as for in vitro antimicrobial activity. All the tested compounds exhibited excellent AI activity profile. Three compounds 1p (R=Cl, R(1)=Cl), 2c (R=H, R(1)=F) and 2n (R=Cl, R(1)=OCH3) were identified as potent anti-inflammatory agents exhibiting edema inhibition of 93.06-89.59% which is comparable to the reference drug indomethacin (91.32%) after 3h of carrageenan injection while most of the other compounds displayed inhibition ⩾80%. In addition, pyrazolylthiazole carboxylic acids (2a-2p) also showed good antimicrobial profile. Compound 2h (R=OCH3, R(1)=Cl) showed excellent antimicrobial activity (MIC 6.25μg/mL) against both Gram positive bacteria comparable with the reference drug ciprofloxacin (MIC 6.25μg/mL).
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Affiliation(s)
- Poonam Khloya
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India
| | - Satish Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India
| | - Pawan Kaushik
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra 136119, India
| | - Parveen Surain
- Department of Microbiology, Kurukshetra University, Kurukshetra 136119, India
| | - Dhirender Kaushik
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra 136119, India
| | - Pawan K Sharma
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India.
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17
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Atobe M, Naganuma K, Kawanishi M, Morimoto A, Kasahara KI, Ohashi S, Suzuki H, Hayashi T, Miyoshi S. Discovery of 2-(1H-indazol-1-yl)-thiazole derivatives as selective EP1 receptor antagonists for treatment of overactive bladder by core structure replacement. Bioorg Med Chem Lett 2014; 24:1327-33. [DOI: 10.1016/j.bmcl.2014.01.052] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 01/06/2014] [Accepted: 01/18/2014] [Indexed: 10/25/2022]
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