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He J, Zhou B, Wang X, Chen Q, Jiang X, Kong T, Yao L, Zhao Y, Chen R, Xu Y, Dai H. Design, Synthesis and Bioactivities of Novel Pyridyl Containing Pyrazole Oxime Ether Derivatives. Molecules 2024; 29:2767. [PMID: 38930832 PMCID: PMC11206151 DOI: 10.3390/molecules29122767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
In this research, with an aim to develop novel pyrazole oxime ether derivatives possessing potential biological activity, thirty-two pyrazole oxime ethers, including a substituted pyridine ring, have been synthesized and structurally identified through 1H NMR, 13C NMR, and HRMS. Bioassay data indicated that most of these compounds owned strong insecticidal properties against Mythimna separata, Tetranychus cinnabarinus, Plutella xylostella, and Aphis medicaginis at a dosage of 500 μg/mL, and some title compounds were active towards Nilaparvata lugens at 500 μg/mL. Furthermore, some of the designed compounds had potent insecticidal effects against M. separata, T. cinnabarinus, or A. medicaginis at 100 μg/mL, with the mortalities of compounds 8a, 8c, 8d, 8e, 8f, 8g, 8o, 8s, 8v, 8x, and 8z against A. medicaginis, in particular, all reaching 100%. Even when the dosage was lowered to 20 μg/mL, compound 8s also expressed 50% insecticidal activity against M. separata, and compounds 8a, 8e, 8f, 8o, 8v, and 8x displayed more than 60% inhibition rates against A. medicaginis. The current results provided a significant basis for the rational design of biologically active pyrazole oxime ethers in future.
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Affiliation(s)
- Jie He
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Beibei Zhou
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Xinjuan Wang
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Qi Chen
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Xiaoqian Jiang
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Ting Kong
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Long Yao
- Analysis and Testing Center, Nantong University, Nantong 226019, China
| | - Yingying Zhao
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Rong Chen
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Ying Xu
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
| | - Hong Dai
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China; (J.H.); (B.Z.); (X.W.); (Q.C.); (X.J.); (T.K.); (Y.Z.); (R.C.); (Y.X.)
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Recent Advancement in Drug Design and Discovery of Pyrazole Biomolecules as Cancer and Inflammation Therapeutics. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248708. [PMID: 36557840 PMCID: PMC9780894 DOI: 10.3390/molecules27248708] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 11/27/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
Pyrazole, an important pharmacophore and a privileged scaffold of immense significance, is a five-membered heterocyclic moiety with an extensive therapeutic profile, viz., anti-inflammatory, anti-microbial, anti-anxiety, anticancer, analgesic, antipyretic, etc. Due to the expansion of pyrazolecent red pharmacological molecules at a quicker pace, there is an urgent need to put emphasis on recent literature with hitherto available information to recognize the status of this scaffold for pharmaceutical research. The reported potential pyrazole-containing compounds are highlighted in the manuscript for the treatment of cancer and inflammation, and the results are mentioned in % inhibition of inflammation, % growth inhibition, IC50, etc. Pyrazole is an important heterocyclic moiety with a strong pharmacological profile, which may act as an important pharmacophore for the drug discovery process. In the struggle to cultivate suitable anti-inflammatory and anticancer agents, chemists have now focused on pyrazole biomolecules. This review conceals the recent expansion of pyrazole biomolecules as anti-inflammatory and anticancer agents with an aim to provide better correlation among different research going around the world.
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Reja S, Mukherjee D, Das P, Kumar P, Das RK. 3-(1,3-Dioxoisoindolin-2-yl)-N,N-dimethylpropan-1-ammonium perchlorate: Synthesis, crystal structure, docking study and in vitro anticancer activity against the human hepatomas cell line (Hep G2). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ramadan M, Aly AA, El-Haleem LEA, Alshammari MB, Bräse S. Substituted Pyrazoles and Their Heteroannulated Analogs-Recent Syntheses and Biological Activities. Molecules 2021; 26:4995. [PMID: 34443583 PMCID: PMC8401439 DOI: 10.3390/molecules26164995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 02/06/2023] Open
Abstract
Pyrazoles are considered privileged scaffolds in medicinal chemistry. Previous reviews have discussed the importance of pyrazoles and their biological activities; however, few have dealt with the chemistry and the biology of heteroannulated derivatives. Therefore, we focused our attention on recent topics, up until 2020, for the synthesis of pyrazoles, their heteroannulated derivatives, and their applications as biologically active moieties. Moreover, we focused on traditional procedures used in the synthesis of pyrazoles.
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Affiliation(s)
- Mohamed Ramadan
- Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assuit 71524, Egypt;
| | - Ashraf A. Aly
- Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt;
| | | | - Mohammed B. Alshammari
- Chemistry Department, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, P.O. Box 83, Al-Kharij 11942, Saudi Arabia;
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems (IBCS-FMS), Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
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5
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Schepetkin IA, Plotnikov MB, Khlebnikov AI, Plotnikova TM, Quinn MT. Oximes: Novel Therapeutics with Anticancer and Anti-Inflammatory Potential. Biomolecules 2021; 11:biom11060777. [PMID: 34067242 PMCID: PMC8224626 DOI: 10.3390/biom11060777] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 02/07/2023] Open
Abstract
Oximes have been studied for decades because of their significant roles as acetylcholinesterase reactivators. Over the last twenty years, a large number of oximes have been reported with useful pharmaceutical properties, including compounds with antibacterial, anticancer, anti-arthritis, and anti-stroke activities. Many oximes are kinase inhibitors and have been shown to inhibit over 40 different kinases, including AMP-activated protein kinase (AMPK), phosphatidylinositol 3-kinase (PI3K), cyclin-dependent kinase (CDK), serine/threonine kinases glycogen synthase kinase 3 α/β (GSK-3α/β), Aurora A, B-Raf, Chk1, death-associated protein-kinase-related 2 (DRAK2), phosphorylase kinase (PhK), serum and glucocorticoid-regulated kinase (SGK), Janus tyrosine kinase (JAK), and multiple receptor and non-receptor tyrosine kinases. Some oximes are inhibitors of lipoxygenase 5, human neutrophil elastase, and proteinase 3. The oxime group contains two H-bond acceptors (nitrogen and oxygen atoms) and one H-bond donor (OH group), versus only one H-bond acceptor present in carbonyl groups. This feature, together with the high polarity of oxime groups, may lead to a significantly different mode of interaction with receptor binding sites compared to corresponding carbonyl compounds, despite small changes in the total size and shape of the compound. In addition, oximes can generate nitric oxide. This review is focused on oximes as kinase inhibitors with anticancer and anti-inflammatory activities. Oximes with non-kinase targets or mechanisms of anti-inflammatory activity are also discussed.
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Affiliation(s)
- Igor A. Schepetkin
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA;
| | - Mark B. Plotnikov
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, 634028 Tomsk, Russia;
| | - Andrei I. Khlebnikov
- Kizhner Research Center, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;
- Scientific Research Institute of Biological Medicine, Altai State University, 656049 Barnaul, Russia
| | - Tatiana M. Plotnikova
- Department of Pharmacology, Siberian State Medical University, 634050 Tomsk, Russia;
| | - Mark T. Quinn
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA;
- Correspondence: ; Tel.: +1-406-994-4707; Fax: +1-406-994-4303
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Ren B, Liu RC, Ji K, Tang JJ, Gao JM. Design, synthesis and in vitro antitumor evaluation of novel pyrazole-benzimidazole derivatives. Bioorg Med Chem Lett 2021; 43:128097. [PMID: 33979690 DOI: 10.1016/j.bmcl.2021.128097] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/26/2021] [Accepted: 05/05/2021] [Indexed: 12/16/2022]
Abstract
A series of novel pyrazole-benzimidazole derivatives (6-42) have been designed, synthesized and evaluated for their in vitro antiproliferative activity against the HCT116, MCF-7 and Huh-7 cell lines. Among them, compounds 17, 26 and 35 showed significant antiproliferative activity against HCT116 cell lines with the IC50 values of 4.33, 5.15 and 4.84 μM, respectively. Moreover, fluorescent staining studies showed compound 17 could induce cancer cells apoptosis. The flow cytometry assay revealed that compound 17 could induce cell cycle arrest at G0/G1 phase. All in all, these consequences suggest that pyrazole-benzimidazole derivatives could serve as promising compounds for further research to develop novel and highly potent cancer therapy agents.
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Affiliation(s)
- Bo Ren
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100 Shaanxi, PR China
| | - Rong-Chun Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100 Shaanxi, PR China
| | - Kegong Ji
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100 Shaanxi, PR China
| | - Jiang-Jiang Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100 Shaanxi, PR China.
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100 Shaanxi, PR China
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7
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Dengale SG, Akolkar HN, Karale BK, Darekar NR, Mhaske SD, Shaikh MH, Raut DN, Deshmukh KK. Synthesis of 3‐(trifluoromethyl)‐1‐(perfluorophenyl)‐1
H
‐pyrazol‐5(4
H
)‐one derivatives via Knoevenagel condensation and their biological evaluation. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sujata G. Dengale
- P.G. and Research, Department of Chemistry Sangamner Nagarpalika Arts, D. J. Malpani Commerce and B. N. Sarada Science College Sangamner India
| | - Hemantkumar N. Akolkar
- P.G. and Research, Department of Chemistry Radhabai Kale Mahila Mahavidyalaya Ahmednagar India
| | - Bhausaheb K. Karale
- P.G. and Research, Department of Chemistry Radhabai Kale Mahila Mahavidyalaya Ahmednagar India
| | - Nirmala R. Darekar
- P.G. and Research, Department of Chemistry Radhabai Kale Mahila Mahavidyalaya Ahmednagar India
| | | | - Mubarak H. Shaikh
- P.G. and Research, Department of Chemistry Radhabai Kale Mahila Mahavidyalaya Ahmednagar India
| | | | - Keshav K. Deshmukh
- P.G. and Research, Department of Chemistry Sangamner Nagarpalika Arts, D. J. Malpani Commerce and B. N. Sarada Science College Sangamner India
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8
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Reeta, Rangarajan TM, Singh RP, Singh RP, Singh M. An Easy Access to Oxime Ethers by
Pd‐Catalyzed
C—O
Cross‐Coupling
of Activated Aryl Bromides with Ketoximes and Chalcone Oximes. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Reeta
- Centre for Fire, Explosive and Environment Safety, DRDO Delhi India
- Department of ChemistryUniversity of Delhi Delhi India
| | - T. M. Rangarajan
- Department of ChemistrySri Venkateswara College, University of Delhi New Delhi India
| | - Raj Pal Singh
- Centre for Fire, Explosive and Environment Safety, DRDO Delhi India
| | - R. P. Singh
- Department of ChemistrySri Venkateswara College, University of Delhi New Delhi India
| | - Manjula Singh
- Department of ChemistryShivaji College, University of Delhi New Delhi India
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9
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Othman IMM, Gad-Elkareem MAM, El-Naggar M, Nossier ES, Amr AEGE. Novel phthalimide based analogues: design, synthesis, biological evaluation, and molecular docking studies. J Enzyme Inhib Med Chem 2019; 34:1259-1270. [PMID: 31287341 PMCID: PMC6691772 DOI: 10.1080/14756366.2019.1637861] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Pyrazolylphthalimide derivative 4 was synthesized and reacted with different reagents to afford the target compounds imidazopyrazoles 5-7, pyrazolopyrimidines 9, 12, 14 and pyrazolotriazines 16, 17 containing phthalimide moiety. The prepared compounds were established by different spectral data and elemental analyses. Additionally, all synthesized derivatives were screened for their antibacterial activity against four types of Gram + ve and Gram-ve strains, and for antifungal activity against two fungi micro-organisms by well diffusion method. Moreover, the antiproliferative activity was tested for all compounds against human liver (HepG-2) cell line in comparison with the reference vinblastine. Moreover, drug-likeness and toxicity risk parameters of the newly synthesized compounds were calculated using in silico studies. The data from structure-actvity relationship (SAR) analysis suggested that phthalimide derivative bearing 3-aminopyrazolone moiety, 4 illustrated the best antimicrobial and antitumor activities and might be considered as a lead for further optimization. To investigate the mechanism of the antimicrobial and anticancer activities, enzymatic assay and molecular docking studies were carried out on E. coli topoisomerase II DNA gyrase B and VEGFR-2 enzymes.
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Affiliation(s)
- Ismail M M Othman
- a Department of Chemistry, Faculty of Science , Al-Azhar University , Assiut , Egypt
| | - Mohamed A M Gad-Elkareem
- a Department of Chemistry, Faculty of Science , Al-Azhar University , Assiut , Egypt.,b Department of Chemistry, Faculty of Science and Arts of Baljurashi , Albaha University , Saudi Arabia
| | - Mohamed El-Naggar
- c Chemistry Department, Faculty of Sciences , University of Sharjah , Sharjah , UAE
| | - Eman S Nossier
- d Pharmaceutical Medicinal Chemistry Department, Faculty of Pharmacy (Girls) , Al-Azhar University , Cairo , Egypt
| | - Abd El-Galil E Amr
- e Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC) , College of Pharmacy, King Saud University , Riyadh , Saudi Arabia.,f Applied Organic Chemistry Department , National Research Centre , Giza , Egypt
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10
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El‐Sayed R, Katouah HA. Synthesis of Pyrimidine and Pyran Derivatives with the Related Systems and the Study of Their Behavior in the Liquid Solutions. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Refat El‐Sayed
- Chemistry Department, College of Applied SciencesUmm Al‐Qura University Makkah 21955 Saudi Arabia
- Chemistry Department, Faculty of ScienceBenha University Benha Egypt
| | - Hanadi A. Katouah
- Chemistry Department, College of Applied SciencesUmm Al‐Qura University Makkah 21955 Saudi Arabia
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11
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Kerru N, Bhaskaruni SV, Gummidi L, Maddila SN, Rana S, Singh P, Jonnalagadda SB. Synthesis of novel pyrazole‐based triazolidin‐3‐one derivatives by using ZnO/ZrO
2
as a reusable catalyst under green conditions. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4722] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nagaraju Kerru
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal Westville Campus, Chiltern Hills Durban 4000 South Africa
| | - Sandeep V.H.S. Bhaskaruni
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal Westville Campus, Chiltern Hills Durban 4000 South Africa
| | - Lalitha Gummidi
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal Westville Campus, Chiltern Hills Durban 4000 South Africa
| | - Surya Narayana Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal Westville Campus, Chiltern Hills Durban 4000 South Africa
| | - Surjyakanta Rana
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal Westville Campus, Chiltern Hills Durban 4000 South Africa
| | - Parvesh Singh
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal Westville Campus, Chiltern Hills Durban 4000 South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal Westville Campus, Chiltern Hills Durban 4000 South Africa
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12
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Mohammed KS, Elbeily EE, El-Taweel FM, Fadda AA. Synthesis, Characterization, and Antioxidant Evaluation of Some Novel Pyrazolo[3,4-c
][1,2]diazepine and Pyrazolo[3,4-c
]pyrazole Derivatives. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3425] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Khaled S. Mohammed
- Engineering Chemistry Department; Higher Institute for Engineering and Technology; New Damietta 34517 Egypt
| | - Engy E. Elbeily
- Department of Chemistry, Faculty of Science; Damietta University; New Damietta 34517 Egypt
| | - Fathy M. El-Taweel
- Department of Chemistry, Faculty of Science; Damietta University; New Damietta 34517 Egypt
| | - Ahmed A. Fadda
- Department of Chemistry, Faculty of Science; Mansoura University; Mansoura ET-35516 Egypt
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13
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Synthesis, molecular modeling and biological screening of some pyrazole derivatives as antileishmanial agents. Future Med Chem 2018; 10:2325-2344. [DOI: 10.4155/fmc-2018-0058] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Aim: Novel open chain and cyclized derivatives containing pyrazole scaffold were designed, synthesized and evaluated as antileishmanial compounds. Methodology & results: In silico reverse docking experiment suggested Leishmania major pteridine reductase (Lm-PTR1) as a putative target for the synthesized compounds. In vitro antileishmanial screening against L. major promastigotes and amastigotes using miltefosine and amphotericin B as references showed that the majority of the compounds displayed activity higher than miltefosine. Compounds 3i and 5 showed the highest antileishmanial activity with IC50 values of 1.45 ± 0.08 μM and 2.30 ± 0.09 μM, respectively, for the amastigote form. In silico drug-likeness and toxicity predictions showed acceptable profiles for most of the compounds, which were validated by experimental toxicity studies. Conclusion: This study offers promising entities for antileishmanial activity.
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14
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Design and Synthesis of Novel Pyrazole-Substituted Different Nitrogenous Heterocyclic Ring Systems as Potential Anti-Inflammatory Agents. Molecules 2017; 22:molecules22040512. [PMID: 28338602 PMCID: PMC6154115 DOI: 10.3390/molecules22040512] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/01/2017] [Accepted: 03/02/2017] [Indexed: 11/17/2022] Open
Abstract
With the aim of developing novel anti-inflammatory scaffolds, a new series of pyrazole-substituted various nitrogenous heterocyclic ring systems at C-4 position were synthesized through different chemical reactions and validated by means of spectral and elemental data. The new obtained compounds were investigated for their anti-inflammatory activity using the carrageenan-induced paw edema standard technique and revealed that, compound 6b showed increased potency with % inhibition of edema 85.23 ± 1.92 and 85.78 ± 0.99, respectively, higher than the standard reference drugs indomethacin and celebrex (72.99% and 83.76%). Molecular modeling studies were initiated herein to validate the attained pharmacological data and provide understandable evidence for the observed anti-inflammatory behavior.
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15
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Xue S, Liu J, Qing X, Wang C. Brönsted acid-mediated annulations of 1-cyanocyclopropane-1-carboxylates with arylhydrazines: efficient strategy for the synthesis of 1,3,5-trisubstituted pyrazoles. RSC Adv 2016. [DOI: 10.1039/c6ra14557d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A diversity-oriented synthesis of 1H-pyrazole derivatives via Brönsted acid-promoted annulations of 1-cyanocyclopropane-1-carboxylates with arylhydrazines has been developed.
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Affiliation(s)
- Shuwen Xue
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Jiaming Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Xushun Qing
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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