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Meanwell NA. The pyridazine heterocycle in molecular recognition and drug discovery. Med Chem Res 2023; 32:1-69. [PMID: 37362319 PMCID: PMC10015555 DOI: 10.1007/s00044-023-03035-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/06/2023] [Indexed: 03/17/2023]
Abstract
The pyridazine ring is endowed with unique physicochemical properties, characterized by weak basicity, a high dipole moment that subtends π-π stacking interactions and robust, dual hydrogen-bonding capacity that can be of importance in drug-target interactions. These properties contribute to unique applications in molecular recognition while the inherent polarity, low cytochrome P450 inhibitory effects and potential to reduce interaction of a molecule with the cardiac hERG potassium channel add additional value in drug discovery and development. The recent approvals of the gonadotropin-releasing hormone receptor antagonist relugolix (24) and the allosteric tyrosine kinase 2 inhibitor deucravacitinib (25) represent the first examples of FDA-approved drugs that incorporate a pyridazine ring. In this review, the properties of the pyridazine ring are summarized in comparison to the other azines and its potential in drug discovery is illustrated through vignettes that explore applications that take advantage of the inherent physicochemical properties as an approach to solving challenges associated with candidate optimization. Graphical Abstract
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2
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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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3
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Turanlı S, Nalbat E, Lengerli D, İbiş K, Güntekin Ergün S, Akhan Güzelcan E, Muyan M, Cetin-Atalay R, Çalışkan B, Banoglu E. Vicinal Diaryl-Substituted Isoxazole and Pyrazole Derivatives with In Vitro Growth Inhibitory and In Vivo Antitumor Activity. ACS OMEGA 2022; 7:36206-36226. [PMID: 36278052 PMCID: PMC9583322 DOI: 10.1021/acsomega.2c03405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The vicinal diaryl heterocyclic framework has been widely used for the development of compounds with significant bioactivities. In this study, a series of diaryl heterocycles were designed and synthesized based on an in-house diaryl isoxazole derivative (9), and most of the newly synthesized derivatives demonstrated moderate to good antiproliferative activities against a panel of hepatocellular carcinoma and breast cancer cells, exemplified with the diaryl isoxazole 11 and the diaryl pyrazole 85 with IC50 values in the range of 0.7-9.5 μM. Treatments with both 11 and 85 induced apoptosis in these tumor cells, and they displayed antitumor activity in vivo in the Mahlavu hepatocellular carcinoma and the MDA-MB-231 breast cancer xenograft models, indicating that these compounds could be considered as leads for further development of antitumor agents. Important structural features of this compound class for the antitumor activity have also been proposed, which warrant further exploration to guide the design of new and more potent diaryl heterocycles.
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Affiliation(s)
- Sümeyye Turanlı
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Yenimahalle, Ankara 06560, Turkey
| | - Esra Nalbat
- Cancer
Systems Biology Laboratory, Graduate School
of Informatics, Middle East Technical University, Ankara 06800, Turkey
| | - Deniz Lengerli
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Yenimahalle, Ankara 06560, Turkey
| | - Kübra İbiş
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Yenimahalle, Ankara 06560, Turkey
| | - Sezen Güntekin Ergün
- Cancer
Systems Biology Laboratory, Graduate School
of Informatics, Middle East Technical University, Ankara 06800, Turkey
| | - Ece Akhan Güzelcan
- Cancer
Systems Biology Laboratory, Graduate School
of Informatics, Middle East Technical University, Ankara 06800, Turkey
| | - Mesut Muyan
- Department
of Biological Sciences, Middle East Technical
University, Ankara 06800, Turkey
| | - Rengul Cetin-Atalay
- Cancer
Systems Biology Laboratory, Graduate School
of Informatics, Middle East Technical University, Ankara 06800, Turkey
| | - Burcu Çalışkan
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Yenimahalle, Ankara 06560, Turkey
| | - Erden Banoglu
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Yenimahalle, Ankara 06560, Turkey
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Identification of new pyrazolyl piperidine molecules as factor Xa inhibitors: Design, synthesis, in silico, and biological evaluation. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Şimay Demir YD, Özdemir A, Özdemir RG, Cevher SC, Çalışkan B, Ark M. Antimigratory effect of pyrazole derivatives through the induction of STAT1 phosphorylation in A549 cancer cells. J Pharm Pharmacol 2021; 73:808-815. [PMID: 33730148 DOI: 10.1093/jpp/rgab022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 01/28/2021] [Indexed: 11/12/2022]
Abstract
OBJECTIVES In cancer treatment, it is important to prevent or slow down metastasis as well as preventing the proliferation of cancer cells. In this study, we aimed to find pyrazole compounds with antimigratory properties. METHODS The 'PASSonline' programme was used to determine the possible pharmacological activities of the pyrazole compounds selected from the library, and two pyrazole derivatives were identified as a transcription factor STAT inhibitor with a high probability. There are studies known that JAK/STAT pathway is related to cancer cell migration, thus the possible antimigratory effects of these two synthesized pyrazole compounds were examined in A549 cancer cells. KEY FINDINGS Our data demonstrated that compound-2 at different concentrations significantly inhibited cell migration in A549 cells. Then, the effects of these compounds on STAT activation were evaluated. We reported that 10 µM compound-2 induced a significant phosphorylation of STAT1 suggesting that STAT1 activation may be responsible for the antimigratory effect of compound-2. CONCLUSIONS Taken together, the compound-2 is a promising compound with the antimigratory activity for cancer treatment, and further studies are needed to synthesize more active derivatives by evaluating the structure-activity relationship of leading compound-2.
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Affiliation(s)
| | - Aysun Özdemir
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Reyhan Gönbe Özdemir
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Setenay Cemre Cevher
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Burcu Çalışkan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Mustafa Ark
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
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6
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Ye J, Lin L, Xu J, Chan PKS, Yang X, Ma C. Design, Synthesis, Biological Evaluation and In Silico Studies of Pyrazole-Based NH 2-Acyl Oseltamivir Analogues as Potent Neuraminidase Inhibitors. Pharmaceuticals (Basel) 2021; 14:371. [PMID: 33923858 PMCID: PMC8073777 DOI: 10.3390/ph14040371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/09/2021] [Accepted: 04/15/2021] [Indexed: 12/12/2022] Open
Abstract
Oseltamivir represents one of the most successful neuraminidase (NA) inhibitors in the current anti-influenza therapy. The 150-cavity of NA was identified as an additional binding pocket, and novel NA inhibitors have been designed to occupy the 150-cavity based on the structure information of oseltamivir carboxylate (OC) in complex with NA. In this study, a series of C-5-NH2-acyl derivatives of OC containing the pyrazole moiety were synthesized. Several derivatives exhibited substantial inhibitory activity against NA. Moreover, in silico ADME evaluation indicated that the derivatives were drug-like with higher oral absorption rates and greater cell permeability than OC. Additionally, molecular docking studies revealed that the derivatives interacted with both the NA enzyme active site and 150-cavity as expected. The results provided useful information for further structural optimization of OC.
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Affiliation(s)
- Jiqing Ye
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China;
| | - Lin Lin
- Department of Microbiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China; (L.L.); (P.K.-s.C.)
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China;
| | - Paul Kay-sheung Chan
- Department of Microbiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China; (L.L.); (P.K.-s.C.)
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Xiao Yang
- Department of Microbiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China; (L.L.); (P.K.-s.C.)
| | - Cong Ma
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China;
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Aydin A, Akkurt M, Turanli S, Lengerli D, Banoglu E, Ozcelik ND. Crystal structure and Hirshfeld surface analysis of 4-(4-chloro-phen-yl)-5-methyl-3-{4-[(2-methyl-phen-yl)meth-oxy]phen-yl}-1,2-oxazole. Acta Crystallogr E Crystallogr Commun 2021; 77:346-350. [PMID: 33936755 PMCID: PMC8025860 DOI: 10.1107/s2056989021002383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 03/02/2021] [Indexed: 11/10/2022]
Abstract
In the title compound, C24H20ClNO2, the mean planes of 4-chloro-phenyl, 2-methyl-phenyl and phenyl-ene rings make dihedral angles of 62.8 (2), 65.1 (3) and 15.1 (2)°, respectively, with the 5-methyl-1,2-oxazole ring. In the crystal, mol-ecules are linked by inter-molecular C-H⋯N, C-H⋯Cl, C-H⋯π contacts and π-π stacking inter-actions between the phenyl-ene groups. Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H⋯H (48.7%), H⋯C/C⋯H (22.2%), Cl⋯H/H⋯Cl (8.8%), H⋯O/O⋯H (8.2%) and H⋯N/N⋯H (5.1%) inter-actions.
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Affiliation(s)
- Abdullah Aydin
- Department of Mathematics and Science Education, Faculty of Education, Kastamonu University, 37200 Kastamonu, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Sumeyye Turanli
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Deniz Lengerli
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Erden Banoglu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Nefise Dilek Ozcelik
- Department of Physics, Faculty of Arts and Sciences, Aksaray University, 68100 Aksaray, Turkey
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8
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Rajesh Kumar M, Violet Dhayabaran V, Sudhapriya N, Manikandan A, Gideon DA, Annapoorani S. p-TSA.H 2O mediated one-pot, multi-component synthesis of isatin derived imidazoles as dual-purpose drugs against inflammation and cancer. Bioorg Chem 2020; 102:104046. [PMID: 32688115 DOI: 10.1016/j.bioorg.2020.104046] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/24/2020] [Accepted: 06/23/2020] [Indexed: 01/02/2023]
Abstract
A novel one-pot multicomponent reaction was performed to synthesize different imidazole and benzotriazole (BTA) isatin-based medicinally important compounds using (p-TSA·H2O) as an economical and operative acid catalyst. The yield of the products was found to be up to a maximum of 92% when using this catalyst. Antioxidant, anti-breast cancer and anti-inflammatory activities of these 13 isatin-based derivatives (named as 5a-m) were assessed. The inhibitory effects of these compounds were tested in vitro against cyclooxygenase-2 (COX-2, an enzyme responsible for inflammation) and phosphoinositide-3 kinase (PI3K, a key enzyme in breast cancer). "Among the 13 isatin-based Imidazole derivatives, five compounds (5a, 5d, 5f, 5 k and 5l) were found to exhibit anti-inflammatory as well as anti-cancer activity, which was validated using HRBC stabilization assay (to show anti-inflammatory activity) and cytotoxicity in MCF-7 (breast cancer cell line) to provide proof for anti-cancer property of the compounds". The molecular interactions between the two enzymes were probed using molecular docking. Structure-Activity Relationship (SAR) and ADMET prediction results were also useful to screen the most effective imidazole derivatives and to establish them as putative COX-2 inhibitors/anti-inflammatory drugs. These selected compounds which showed appreciable activity against COX-2 and PI3K are promising drug candidates for the treatment of breast cancer and inflammation which is often associated with breast cancer pathophysiology.
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Affiliation(s)
- M Rajesh Kumar
- Department of Chemistry, Bishop Heber College (Autonomous), Tiruchirappalli 17, India
| | - V Violet Dhayabaran
- Department of Chemistry, Bishop Heber College (Autonomous), Tiruchirappalli 17, India.
| | - N Sudhapriya
- Department of Textile Chemistry, The South India Textile Research Association, Coimbatore 641014, India
| | - A Manikandan
- School of Bio-Sciences and Technology, VIT University, Vellore 632014, India; Division of BioSciences and Biomedical Engineering, IIT Indore, Simrol 453552, India.
| | - Daniel A Gideon
- Department of Biotechnology and Bioinformatics, Bishop Heber College (Autonomous), Tiruchirappalli 17, India
| | - S Annapoorani
- Dr. Umayal Ramanathan College for Women, Karaikudi, India
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9
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Thangarasu P, Manikandan A, Thamaraiselvi S. Discovery, synthesis and molecular corroborations of medicinally important novel pyrazoles; drug efficacy determinations through in silico, in vitro and cytotoxicity validations. Bioorg Chem 2019; 86:410-419. [DOI: 10.1016/j.bioorg.2019.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/17/2019] [Accepted: 02/02/2019] [Indexed: 10/27/2022]
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10
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Aydin A, Akkurt M, Gur ZT, Banoğlu E. Crystal structure and Hirshfeld surface analysis of 1-(2,4-di-chloro-benz-yl)-5-methyl- N-(thio-phene-2-sulfon-yl)-1 H-pyrazole-3-carboxamide. Acta Crystallogr E Crystallogr Commun 2018; 74:747-751. [PMID: 29850105 PMCID: PMC5947501 DOI: 10.1107/s2056989018006242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 04/24/2018] [Indexed: 06/08/2023]
Abstract
In the title compound, C16H13Cl2N3O3S2, the thio-phene ring is disordered in a 0.762 (3):0.238 (3) ratio by an approximate 180° rotation of the ring around the S-C bond linking the ring to the sulfonyl unit. The di-chloro-benzene group is also disordered over two sets of sites with the same occupancy ratio. The mol-ecular conformation is stabilized by intra-molecular C-H⋯Cl and C-H⋯N hydrogen bonds, forming rings with graph-set notation S(5). In the crystal, pairs of mol-ecules are linked by N-H⋯O and C-H⋯O hydrogen bonds, forming inversion dimers with graph-set notation R22(8) and R12(11), which are connected by C-H⋯O hydrogen-bonding inter-actions into ribbons parallel to (100). The ribbons are further connected into a three-dimensional network by C-H⋯π inter-actions and π-π stacking inter-actions between benzene and thio-phene rings, with centroid-to-centroid distances of 3.865 (2), 3.867 (7) and 3.853 (2) Å. Hirshfeld surface analysis has been used to confirm and qu-antify the supra-molecular inter-actions.
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Affiliation(s)
- Abdullah Aydin
- Department of Mathematics and Science Education, Faculty of Education, Kastamonu University, 37200 Kastamonu, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Zehra Tugce Gur
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Erden Banoğlu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
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11
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Chaudhry F, Ather AQ, Akhtar MJ, Shaukat A, Ashraf M, al-Rashida M, Munawar MA, Khan MA. Green synthesis, inhibition studies of yeast α-glucosidase and molecular docking of pyrazolylpyridazine amines. Bioorg Chem 2017; 71:170-180. [DOI: 10.1016/j.bioorg.2017.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 12/31/2016] [Accepted: 02/07/2017] [Indexed: 10/20/2022]
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12
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Recent advances in bioactive pyrazoles. Eur J Med Chem 2015; 97:786-815. [DOI: 10.1016/j.ejmech.2014.11.059] [Citation(s) in RCA: 278] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 11/11/2014] [Accepted: 11/28/2014] [Indexed: 01/09/2023]
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13
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Alaşalvar C, Soylu MS, Ünver H, Ocak İskeleli N, Yildiz M, Çiftçi M, Banoğlu E. Crystal structure and DFT calculations of 5-(4-Chlorophenyl)-1-(6-methoxypyridazin-3-yl)-1H-pyrazole-3-carboxylic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 132:555-562. [PMID: 24892534 DOI: 10.1016/j.saa.2014.05.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 04/30/2014] [Accepted: 05/09/2014] [Indexed: 06/03/2023]
Abstract
The title compound, 5-(4-Chlorophenyl)-1-(6-methoxypyridazin-3-yl)-1H-pyrazole-3-carboxylic acid, has been characterized by using elemental analysis, MS, FT-IR, 1H NMR and 13C NMR spectroscopic, and crystallographic techniques. The title compound crystallizes in the triclinic space group P-1 with a=9.612(1), b=9.894(1), c=17.380(1)Å, α=90.213(5)°, β=104.99(1)°, γ=111.072(5)°, V=1481.3(2)Å3 and Dx=1.483 g cm(-3) respectively. The structure of the compound has also been examined by using quantum chemical methods. The molecular geometry and vibrational frequencies of monomeric and dimeric form of the title compound in the ground state have been calculated by using the B3LYP/6-31G(d,p) level of the theory. The calculated results show that the optimized geometry and the theoretical vibration frequencies of the dimeric form are good agreement with experimental data. In addition, HOMO-LUMO energy gap, molecular electrostatic potential map, thermodynamic properties of the title compound were performed at B3LYP/6-31G(d,p) level of theory.
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Affiliation(s)
- Can Alaşalvar
- Giresun University, Technical Science Vocational High School, Department of Electric and Energy, TR-28100 Giresun, Turkey.
| | | | - Hüseyin Ünver
- Department of Physics, Faculty of Science, Ankara University, TR-06100 Tandoğan, Ankara, Turkey
| | - Nazan Ocak İskeleli
- Department of Science Education, Ondokuz Mayıs University, TR-55200 Atakum, Samsun, Turkey
| | - Mustafa Yildiz
- Department of Chemistry, Faculty of Science and Arts, Çanakkale Onsekiz Mart University, TR-17100 Çanakkale, Turkey
| | - Murat Çiftçi
- Gazi University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, TR-06100 Besevler, Ankara, Turkey
| | - Erden Banoğlu
- Gazi University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, TR-06100 Besevler, Ankara, Turkey
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14
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Synthesis and preliminary mechanistic evaluation of 5-(p-tolyl)-1-(quinolin-2-yl)pyrazole-3-carboxylic acid amides with potent antiproliferative activity on human cancer cell lines. Eur J Med Chem 2014; 87:140-9. [DOI: 10.1016/j.ejmech.2014.09.056] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 09/15/2014] [Accepted: 09/16/2014] [Indexed: 01/01/2023]
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15
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Anil Kumar KS, Misra A, Siddiqi TI, Srivastava S, Jain M, Bhatta RS, Barthwal M, Dikshit M, Dikshit DK. Synthesis and identification of chiral aminomethylpiperidine carboxamides as inhibitor of collagen induced platelet activation. Eur J Med Chem 2014; 81:456-72. [PMID: 24859764 DOI: 10.1016/j.ejmech.2014.05.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 05/01/2014] [Accepted: 05/04/2014] [Indexed: 11/19/2022]
Abstract
A series of chiral lactam carboxamides of aminomethylpiperidine were synthesized and investigated for the collagen induced in vitro anti-platelet efficacy and collagen plus epinephrine induced in vivo pulmonary thromboembolism. The compound 31a (30 μM/kg) displayed a remarkable antithrombotic efficacy (60% protection) which was sustained for more than 24 h and points to its excellent bioavailability. The compounds 31a (IC50 = 6.6 μM) and 32a (IC50 = 37 μM), as well as their racemic mixture 28i (IC50 = 16 μM) significantly inhibited collagen-induced human platelet aggregation in vitro. Compound 34c displayed dual mechanism of action against both collagen (IC50 = 3.3 μM) and U46619 (IC50 = 2.7 μM) induced platelet aggregation. The pharmacokinetic study of 31a indicated very faster absorption, prolonged and constant systemic exposure and thereby exhibiting better therapeutic response.
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Affiliation(s)
- K S Anil Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India
| | - Ankita Misra
- Pharmacology Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India
| | - Tanveer Irshad Siddiqi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India
| | - Stuti Srivastava
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India
| | - Manish Jain
- Pharmacology Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India
| | - Rabi Sankar Bhatta
- Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India
| | - Manoj Barthwal
- Pharmacology Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India
| | - Madhu Dikshit
- Pharmacology Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India.
| | - Dinesh K Dikshit
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sec-10, Janakipuram Ext., Sitapur Road, Lucknow 226 031, India.
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16
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Krishnanjaneyulu IS, Saravanan G, Vamsi J, Supriya P, Bhavana JU, Sunil Kumar MV. Synthesis, characterization and antimicrobial activity of some novel benzimidazole derivatives. J Adv Pharm Technol Res 2014; 5:21-7. [PMID: 24696814 PMCID: PMC3960790 DOI: 10.4103/2231-4040.126983] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
A series of novel N-((1H-benzoimidazol-1-yl) methyl)-4-(1-phenyl-5-substituted-4, 5-dihydro-1-benzoimidazol-1-yl) methyl)-4-(1-phenyl-5-substituted-4, 5-dihydro-1H-pyrazol-3-yl) benzenamine were synthesized by treating various 1-(4-((1H-benzoimidazol-1-yl) methylamino) phenyl)-3-substitutedprop-2-en-1-one with phenyl hydrazine in the presence of sodium acetate through a simple ring closure reaction. The starting material, 1-(4-((1H-benzoimidazol-1-yl) methylamino) phenyl)-3-substitutedprop-2-en-1-one,-benzoimidazol-1-yl) methylamino) phenyl)-3-substitutedprop-2-en-1-one, was synthesized from o-phenylenediamine by a multistep synthesis. All the synthesized compounds were characterized by spectroscopic means and elemental analyses. The title compounds were investigated for in vitro antibacterial and antifungal properties against some human pathogenic microorganisms by employing the agar streak dilution method using Ciprofloxacin and Ketoconazole as standard drugs. All title compounds showed activity against the entire strains of microorganism. Structural activity relationship studies reveal that compounds possessing an electron-withdrawing group display better activity than the compounds containing electron-donating groups, whereas the unsubstituted derivatives display moderate activity. Based on the results obtained, N-((1H-benzoimidazol-1-yl) methyl)-4-(1-phenyl-5-(4-(trifluoromethyl) phenyl)-4,5-dihydro-1H-pyrazol-3-yl) benzenamine 5i was found to be very active compared with the rest of the compounds and standard drugs that were subjected to antimicrobial assay.
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Affiliation(s)
| | - Govindaraj Saravanan
- Department of Pharmaceutical Chemistry, Bapatla College of Pharmacy, Bapatla, Andra Pradesh, India
| | - Janga Vamsi
- Department of Pharmaceutical Chemistry, Bapatla College of Pharmacy, Bapatla, Andra Pradesh, India
| | - Pamidipamula Supriya
- Department of Pharmaceutical Chemistry, Bapatla College of Pharmacy, Bapatla, Andra Pradesh, India
| | - Jarugula Udaya Bhavana
- Department of Pharmaceutical Chemistry, Bapatla College of Pharmacy, Bapatla, Andra Pradesh, India
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