1
|
Ansari MD, Sagir H, Yadav VB, Yadav N, Verma A, Shakya S, Singh M, Siddiqui IR. Magnetically recoverable Fe 3O 4 nanocatalyst for the synthesis of biodynamically significant 1H-pyrazolo[1,2-b]phthalazine-5,10-diones derivatives and its DFT study. Mol Divers 2023; 27:1853-1866. [PMID: 36207499 DOI: 10.1007/s11030-022-10532-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022]
Abstract
An environmentally sustainable and proficient method is reported for the synthesis of medicinally important pyrazolo[1,2-b] phthalazine dione derivatives by aqueous micellar medium catalysed by Fe3O4 NPs. Dialkyl acetylenedicarboxylate with isocyanides in the presence of phthalhydrazide is used as starting material. The main advantages of this protocol are the availability of starting materials, short reaction times, green solvents and practical simplicity.
Collapse
Affiliation(s)
- Mohd Danish Ansari
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Hozeyfa Sagir
- Department of Chemistry, Paliwal P.G. College, Shikohabad, 205135, India
| | - Vijay B Yadav
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Neetu Yadav
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Ankit Verma
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Sonam Shakya
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Manjit Singh
- Department of Chemistry, IIT BHU, Varanasi, India
| | - I R Siddiqui
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India.
| |
Collapse
|
2
|
Soria-Martínez R, Mendoza-Meroño R, García-Granda S. Synthesis, crystal structure and noncovalent study of 1,5-Bis[1-(4-Fluorophenyl)ethylidene]-carbohidrazide. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
3
|
Zinc–proline complex as a novel and efficient catalyst for the green synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04728-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
4
|
Nezhad SM, Pourmousavi SA, Zare EN. Superparamagnetic Polyaniline-co-m-phenylenediamine@Fe3O4 Nanocomposite as an Efficient Heterogeneous Catalyst for the Synthesis of 1H-pyrazolo [1,2- a]pyridazine-5,8-diones & 1H-pyrazolo[1,2-b]phthalazine-5, 10-diones" Instead of 1H-pyrazolo[1,2-b] Phthalazinedione Derivatives. Curr Org Synth 2021; 19:246-266. [PMID: 34736384 DOI: 10.2174/1570179418666211104143736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/06/2021] [Accepted: 08/17/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND The use of polymer-based catalysts has increased because of their high potential application as an effective catalyst in organic reactions. They have benefits such as high efficiency and reactivity, simple separation, and safety compared to other heterogeneous catalysts. AIM AND OBJECTIVE The objective of the current research is to prepare solid polymer-based catalysts, poly(aniline-co- m-phenylenediamine) (PAmPDA), and its superparamagnetic nanocomposite. Then, the catalytic activity of the resulting superparamagnetic nanocomposite was investigated in the synthesis of 1H-pyrazolo[1,2-b]phetalazine-5,10-diones and 1H-pyrazolo[1,2-a]pyridazine-5,8-dione derivatives. A series of some 1H-pyrazolo[1,2-b]phetalazine-5,10-diones and 1H-pyrazolo[1,2-a]pyridazine-5,8-dione derivatives was tested for its antibacterial properties against the Staphylococcus aureus and E.coli bacteria. MATERIALS AND METHODS PAmPDA copolymer was synthesized in a 1:2 molar ratio of Ani to mPDA via radical oxidative polymerization at room temperature. Superparamagnetic PAmPDA@Fe3O4 nanocomposite was synthesized from a mixture of Fe(II), Fe(III) solution, and PAmPDA copolymer via the in-situ co-precipitation technique. 1H-pyrazolo[1,2-b]phetalazine-5,10-diones were synthesized via one-pot three-component condensation reaction of Phthalhydrazide, aromatic aldehyde derivatives, and malononitrile in the presence of PAmPDA under solvent-free conditions at 80 °C. The synthesis of 1Hpyrazolo[1,2-a]pyridazine-5,8-dione derivatives was carried out via a one-pot three-component condensation reaction of maleic hydrazide, aromatic aldehyde derivatives, and malononitrile in the presence of PAmPDA under reflux conditions at EtOH/H2O 1:1. The antibacterial activity of some derivatives was tested against Gram-positive and Gram-negative bacteria. RESULTS First, superparamagnetic PAmPDA@Fe3O4 nanocomposite was synthesized and characterized successfully, and then the resulting nanocatalyst was used for the synthesis of pyrazolo[1,2-b]phthalazine and pyrazolo[1,2-a]pyridazine. We obtained the maximum yield of the desired 1H-pyrazolo[1,2- b]phthalazine-5,10 dione derivatives with 0.05 g of catalyst at 80°C, under solvent free conditions, whereby the reaction was complete within 30 min. A wide range of 1H-pyrazolo[1,2-b]phthalazine-5,10 dione derivatives were synthesized in good to excellent yield. On the other hand, pyrazolo[1,2- a]pyridazine derivative was synthesized successfully in high yield using PAmPDA as a nanocatalyst. The antibacterial activity of some derivatives, according to the data (inhibition zone%), showed good activity against Staphylococcus aureus and E.coli. CONCLUSION In this research, PAmPDA was used for mild preparation of 1H-pyrazolo [1,2-a]pyridazine5,8-diones & 1H-pyrazolo[1,2-b]phetalazine-5,10-diones derivatives with excellent yields and short reaction times. The attractive features of this protocol are simple procedure, cleaner reaction, and the use of recyclable nanocatalyst. Satisfactory yields of products and easy workup make this a useful protocol for the green synthesis of this class of compounds. The antibacterial activity of some derivatives, according to the data (inhibition zone%), showed good activity against Staphylococcus aureus and E.coli.
Collapse
|
5
|
Murali K, Machado LA, Carvalho RL, Pedrosa LF, Mukherjee R, Da Silva Júnior EN, Maiti D. Decoding Directing Groups and Their Pivotal Role in C-H Activation. Chemistry 2021; 27:12453-12508. [PMID: 34038596 DOI: 10.1002/chem.202101004] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Indexed: 12/14/2022]
Abstract
Synthetic organic chemistry has witnessed a plethora of functionalization and defunctionalization strategies. In this regard, C-H functionalization has been at the forefront due to the multifarious applications in the development of simple to complex molecular architectures and holds a brilliant prospect in drug development and discovery. Despite been explored tremendously by chemists, this functionalization strategy still enjoys the employment of novel metal catalysts as well metal-free organic ligands. Moreover, the switch to photo- and electrochemistry has widened our understanding of the alternative pathways via which a reaction can proceed and these strategies have garnered prominence when applied to C-H activation. Synthetic chemists have been foraging for new directing groups and templates for the selective activation of C-H bonds from a myriad of carbon-hydrogen bonds in aromatic as well as aliphatic systems. As a matter of fact, by varying the templates and directing groups, scientists found the answer to the challenge of distal C-H bond activation which remained an obstacle for a very long time. These templates have been frequently harnessed for selectively activating C-H bonds of natural products, drugs, and macromolecules decorated with multiple C-H bonds. This itself was a challenge before the commencement of this field as functionalization of a site other than the targeted site could modify and hamper the biological activity of the pharmacophore. Total synthesis and pharmacophore development often faces the difficulty of superfluous reaction steps towards selective functionalization. This obstacle has been solved by late-stage functionalization simply by harnessing C-H bond activation. Moreover, green chemistry and metal-free reaction conditions have seen light in the past few decades due to the rising concern about environmental issues. Therefore, metal-free catalysts or the usage of non-toxic metals have been recently showcased in a number of elegant works. Also, research groups across the world are developing rational strategies for directing group free or non-directed protocols that are just guided by ligands. This review encapsulates the research works pertinent to C-H bond activation and discusses the science devoted to it at the fundamental level. This review gives the readers a broad understanding of how these strategies work, the execution of various metal catalysts, and directing groups. This not only helps a budding scientist towards the commencement of his/her research but also helps a matured mind searching out for selective functionalization. A detailed picture of this field and its progress with time has been portrayed in lucid scientific language with a motive to inculcate and educate scientific minds about this beautiful strategy with an overview of the most relevant and significant works of this era. The unique trait of this review is the detailed description and classification of various directing groups and their utility over a wide substrate scope. This allows an experimental chemist to understand the applicability of this domain and employ it over any targeted substrate.
Collapse
Affiliation(s)
- Karunanidhi Murali
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Luana A Machado
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil.,Department of Chemistry, Fluminense Federal University, Niteroi, 24020-141, RJ, Brazil
| | - Renato L Carvalho
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Leandro F Pedrosa
- Department of Chemistry, Fluminense Federal University, Niteroi, 24020-141, RJ, Brazil
| | - Rishav Mukherjee
- Department of Chemistry IIT Bombay, Powai, Mumbai, 400076, India
| | | | - Debabrata Maiti
- Department of Chemistry IIT Bombay, Powai, Mumbai, 400076, India
| |
Collapse
|
6
|
Mersal KI, Abdel-Maksoud MS, Ali EMH, Ammar UM, Zaraei SO, Kim JM, Kim SY, Lee KT, Lee KH, Kim SW, Park HM, Ji MJ, Oh CH. Design, synthesis, in vitro determination and molecular docking studies of 4-(1-(tert-butyl)-3-phenyl-1H-pyrazol-4-yl) pyridine derivatives with terminal sulfonamide derivatives in LPS-induced RAW264.7 macrophage cells. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02784-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
7
|
Poletto J, da Silva MJV, Jacomini AP, Bidóia DL, Volpato H, Nakamura CV, Rosa FA. Antiparasitic activities of novel pyrimidine N-acylhydrazone hybrids. Drug Dev Res 2020; 82:230-240. [PMID: 32996619 DOI: 10.1002/ddr.21745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/04/2020] [Accepted: 09/18/2020] [Indexed: 11/09/2022]
Abstract
In this article, a series of 29 new pyrimidine N-acylhydrazone hybrids were synthesized and evaluated in vitro against Leishmania amazonensis and Trypanosoma cruzi protozoa that cause the neglected diseases cutaneous leishmaniasis and Chagas disease, respectively. Eight of the target compounds showed significant antiprotozoal activities with IC50 values in 4.3-33.6 μM range. The more active compound 4f exhibited selectivity index greater than 15 and drug-like properties based on Lipinski's rule.
Collapse
Affiliation(s)
- Julia Poletto
- Departamento de Química, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Michael J V da Silva
- Departamento de Química, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Andrey P Jacomini
- Departamento de Química, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Danielle L Bidóia
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Hélito Volpato
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Celso Vataru Nakamura
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Fernanda A Rosa
- Departamento de Química, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| |
Collapse
|
8
|
da Silva Lima CH, de Araujo Vanelis Soares JC, de Sousa Ribeiro JL, Muri EMF, de Albuquerque S, Dias LRS. Anti-Trypanosoma cruzi Activity and Molecular Docking Studies of 1Hpyrazolo[ 3, 4-b]pyridine Derivatives. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180816666190305141733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Untargeted studies led to the development of some pyrazolopyridine
derivatives for the antiparasitic profile, particularly the derivatives containing the structural
carbohydrazide subunit. In this work, we proceeded in the biological screening of 27 N’- (substitutedphenylmethylene)-
4-carbohydrazide-3-methyl-1-phenyl-1H-pyrazolo[3, 4-b]pyridine derivatives against
T. cruzi as well as the cytotoxic evaluation. To obtain more information about the trypanocidal
activity of this class of compounds, we carried out molecular docking simulations to get an insight
into putative targets in T. cruzi.
Methods:
The assays were evaluated against both trypomastigote and amastigote forms of T. cruzi
and cytotoxicity assays on LLCMK2 cells. The predominant conformational compounds were
analyzed and molecular docking simulations performed.
Results:
The results from trypanocidal activity screening of this series showed that just the
compounds with phenyl group at C-6 position exhibited activity and the N’-4-hydroxyphenylmethylene
derivative presented the best profile against both trypomastigote and amastigote
forms of T. cruzi. Docking simulation results showed that this compound has a binding affinity with
both CYP51 and cruzain targets of T. cruzi.
Conclusion:
Our results indicate that the hydroxyl substituent at the N’-substituted-phenylmethylene
moiety and the phenyl ring at C-6 of 1H-pyrazolo[3,4-b]pyridine system are relevant for the
trypanocidal activity of this class of compounds. Also, docking simulations showed that activity
presented can be related to more than one target of the parasite.
Collapse
Affiliation(s)
- Camilo Henrique da Silva Lima
- Laboratório de Quimica Medicinal, Universidade Federal Fluminense, Faculdade de Farmacia, Niteroi, Rio de Janeiro, Brazil
| | | | - Joana Lucius de Sousa Ribeiro
- Laboratório de Quimica Medicinal, Universidade Federal Fluminense, Faculdade de Farmacia, Niteroi, Rio de Janeiro, Brazil
| | - Estela Maris Freitas Muri
- Laboratório de Quimica Medicinal, Universidade Federal Fluminense, Faculdade de Farmacia, Niteroi, Rio de Janeiro, Brazil
| | - Sérgio de Albuquerque
- Universidade de Sao Paulo, Departamento de Analises Clinicas, Toxicologicas e Bromatologicas, Av. do Cafe s/n, Ribeirao Preto, SP, 14040-903, Brazil
| | - Luiza Rosaria Sousa Dias
- Laboratório de Quimica Medicinal, Universidade Federal Fluminense, Faculdade de Farmacia, Niteroi, Rio de Janeiro, Brazil
| |
Collapse
|
9
|
Ashok D, Ram Reddy M, Nagaraju N, Dharavath R, Ramakrishna K, Gundu S, Shravani P, Sarasija M. Microwave-assisted synthesis and in vitro antiproliferative activity of some novel 1,2,3-triazole-based pyrazole aldehydes and their benzimidazole derivatives. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02515-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
10
|
Maheswari CS, Tamilselvi V, Ramesh R, Lalitha A. An Organocatalytic Cascade Synthesis of Diverse 1 H-Pyrazolo[1,2-b]phthalazine-2-carboxamide,1 H-Pyrazolo[1,2- b]phthalazine, 4 H-Pyrano[2,3- c]pyrazole and 4 H-Benzo[ g]chromenes via Multicomponent Reactions. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2019.1693241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | - Rathinam Ramesh
- Department of Chemistry, Periyar University, Salem, Tamil Nadu, India
| | - Appaswami Lalitha
- Department of Chemistry, Periyar University, Salem, Tamil Nadu, India
| |
Collapse
|
11
|
Development of Antimicrobial, Antimalarial and Antitubercular Compounds Based on a Quinoline-Pyrazole Clubbed Scaffold Derived via Doebner Reaction. CHEMISTRY AFRICA 2019. [DOI: 10.1007/s42250-019-00096-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
12
|
Zhou Q, Du F, Chen Y, Fu Y, Sun W, Wu Y, Chen G. l -( -) -Quebrachitol as a Ligand for Selective Copper(0)-Catalyzed N-Arylation of Nitrogen-Containing Heterocycles. J Org Chem 2019; 84:8160-8167. [PMID: 31190531 DOI: 10.1021/acs.joc.9b00997] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
l-(-)-Quebrachitol (QCT) has been found as a ligand of copper powder for selective N-arylation of nitrogen-containing heterocycles with aryl halides. Furthermore, another potential catalytic system (copper powder/QCT/ t-BuOK) was successfully adapted to unactivated aryl chlorides.
Collapse
Affiliation(s)
- Qifan Zhou
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Fangyu Du
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Yuanguang Chen
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Yang Fu
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Wenjiao Sun
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Ying Wu
- Yunnan Institute of Tropical Crops , Jinghong 666100 , China
| | - Guoliang Chen
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
| |
Collapse
|
13
|
Turhan K. One-Pot Synthesis of Substituted Phthalazine-5,10-dione Derivatives in the Presence of Triflate Catalyst. ACTA ACUST UNITED AC 2019. [DOI: 10.21597/jist.433331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
14
|
Abstract
4-Formylpyrazoles are useful building blocks in organic synthesis. This review focuses on the applications of 4-formylpyrazoles to generate a large variety of organic compounds and heterocycles such as Schiff bases, pyrazolylpyrazolines, pyrazoloquinolinones, 4H-pyrazolopyran, pyrazolylbenzoxazole, pyrazolothiadiazepines, pyrazolyloxazolone, pyrazolyloxadiazolines, pyrazolylthiadiazolines, imidazolylpyrazoles, pyrazolopyridines, chromenopyrazolones, thiopyranothiazolylpyrazoles and many others. Many of these molecules exhibit excellent biological activities.
Collapse
Affiliation(s)
- Renu Bala
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmour, H.P.- 173101, India
| | - Poonam Kumari
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmour, H.P.- 173101, India
| | - Sumit Sood
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmour, H.P.- 173101, India
| | - Karan Singh
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmour, H.P.- 173101, India
| |
Collapse
|
15
|
Bala R, Kumari P, Sood S, Kumar V, Singh N, Singh K. Phthaloyl Dichloride-DMF Mediated Synthesis of Benzothiazole-based 4-Formylpyrazole Derivatives: Studies on Their Antimicrobial and Antioxidant Activities. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3282] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Renu Bala
- Department of Chemistry, Akal College of Basic Sciences; Eternal University; Baru Sahib, Sirmour Himachal Pradesh 173101 India
| | - Poonam Kumari
- Department of Chemistry, Akal College of Basic Sciences; Eternal University; Baru Sahib, Sirmour Himachal Pradesh 173101 India
| | - Sumit Sood
- Department of Chemistry, Akal College of Basic Sciences; Eternal University; Baru Sahib, Sirmour Himachal Pradesh 173101 India
| | - Vinod Kumar
- Department of Biochemistry, College of Agriculture; Agriculture University, Jodhpur; Rajasthan 342304 India
| | - Nasib Singh
- Department of Microbiology, Akal College of Basic Sciences; Eternal University; Baru Sahib, Sirmour Himachal Pradesh 173101 India
| | - Karan Singh
- Department of Chemistry, Akal College of Basic Sciences; Eternal University; Baru Sahib, Sirmour Himachal Pradesh 173101 India
| |
Collapse
|
16
|
Fayed EA, Eissa SI, Bayoumi AH, Gohar NA, Mehany ABM, Ammar YA. Design, synthesis, cytotoxicity and molecular modeling studies of some novel fluorinated pyrazole-based heterocycles as anticancer and apoptosis-inducing agents. Mol Divers 2018; 23:165-181. [DOI: 10.1007/s11030-018-9865-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 08/02/2018] [Indexed: 10/28/2022]
|
17
|
Cogo J, Cantizani J, Cotillo I, Sangi DP, Corrêa AG, Ueda-Nakamura T, Filho BPD, Martín JJ, Nakamura CV. Quinoxaline derivatives as potential antitrypanosomal and antileishmanial agents. Bioorg Med Chem 2018; 26:4065-4072. [DOI: 10.1016/j.bmc.2018.06.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/11/2018] [Accepted: 06/24/2018] [Indexed: 10/28/2022]
|
18
|
Synthesis of 1,2,3-triazole and isoxazole-linked pyrazole hybrids and their cytotoxic activity. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1884-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
19
|
Ghorbani-Vaghei R, Mahmoodi J, Maghbooli Y. Preparation and characterization of nanomagnetic piperidinium benzene-1,3-disulfonate ionic liquid as a novel, green and heterogeneous catalyst and its use in the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones and 1H-pyrazolo[1,2-a] pyridazine-5,8. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3717] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Jafar Mahmoodi
- Faculty of Chemistry; Bu-Ali Sina University; Hamedan 6517838683 Iran
| | - Yaser Maghbooli
- Faculty of Chemistry; Bu-Ali Sina University; Hamedan 6517838683 Iran
| |
Collapse
|
20
|
Sapariya NH, Vaghasiya BK, Thummar RP, Kamani RD, Patel KH, Thakor P, Thakkar SS, Ray A, Raval DK. Synthesis, characterization, in silico molecular docking study and biological evaluation of a 5-(phenylthio) pyrazole based polyhydroquinoline core moiety. NEW J CHEM 2017. [DOI: 10.1039/c7nj01962a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A combinatorial library of polyhydroquinoline scaffolds is successfully attempted by multicomponent cyclocondensation reaction.
Collapse
Affiliation(s)
- Nirav H. Sapariya
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar
- India
| | | | - Rahul P. Thummar
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar
- India
| | - Ronak D. Kamani
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar
- India
| | - Kirit H. Patel
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar
- India
| | - Parth Thakor
- P. G. Department of Biosciences
- Sardar Patel Maidan
- Sardar Patel University
- Vallabh Vidyanagar
- India
| | - Sampark S. Thakkar
- Advanced Organic Chemistry Department
- P. D. Patel Institute of Applied Sciences
- CHARUSAT
- Changa-388421
- India
| | - Arabinda Ray
- Advanced Organic Chemistry Department
- P. D. Patel Institute of Applied Sciences
- CHARUSAT
- Changa-388421
- India
| | - Dipak K. Raval
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar
- India
| |
Collapse
|
21
|
Hamzeh-Mivehroud M, Sokouti B, Dastmalchi S. An Introduction to the Basic Concepts in QSAR-Aided Drug Design. Oncology 2017. [DOI: 10.4018/978-1-5225-0549-5.ch002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The need for the development of new drugs to combat existing and newly identified conditions is unavoidable. One of the important tools used in the advanced drug development pipeline is computer-aided drug design. Traditionally, to find a drug many ligands were synthesized and evaluated for their effectiveness using suitable bioassays and if all other drug-likeness features were met, the candidate(s) would possibly reach the market. Although this approach is still in use in advanced format, computational methods are an indispensable component of modern drug development projects. One of the methods used from very early days of rationalizing the drug design approaches is Quantitative Structure-Activity Relationship (QSAR). This chapter overviews QSAR modeling steps by introducing molecular descriptors, mathematical model development for relating biological activities to molecular structures, and model validation. At the end, several successful cases where QSAR studies were used extensively are presented.
Collapse
Affiliation(s)
| | | | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Iran & School of Pharmacy, Tabriz University of Medical Sciences, Iran
| |
Collapse
|
22
|
Novel pyrazole derivatives with oxa/thiadiazolyl, pyrazolyl moieties and pyrazolo[4,3-d]-pyrimidine derivatives as potential antimicrobial and anticancer agents. Bioorg Med Chem Lett 2016; 26:2428-2433. [DOI: 10.1016/j.bmcl.2016.03.117] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 03/30/2016] [Accepted: 03/31/2016] [Indexed: 11/21/2022]
|
23
|
Saito MS, Lourenço AL, Dias LRS, Freitas ACC, Vitorino MI, Albuquerque MG, Rodrigues CR, Cabral LM, Dias EP, Castro HC, Satlher PC. Antiplatelet pyrazolopyridines derivatives: pharmacological, biochemical and toxicological characterization. J Enzyme Inhib Med Chem 2016; 31:1591-601. [DOI: 10.3109/14756366.2016.1158712] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Max Seidy Saito
- Laboratório de Antibióticos, Bioquímica, Ensino e Modelagem Molecular (LABiEMol) – Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil,
- Programa de Pós-Graduação em Patologia (PPG-UFF) – Hospital Universitário Antônio Pedro, Universidade Federal Fluminense, Niterói, Brazil,
| | - André Luiz Lourenço
- Laboratório de Antibióticos, Bioquímica, Ensino e Modelagem Molecular (LABiEMol) – Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil,
- Programa de Pós-Graduação em Patologia (PPG-UFF) – Hospital Universitário Antônio Pedro, Universidade Federal Fluminense, Niterói, Brazil,
| | - Luiza Rosaria Sousa Dias
- Laboratório de Química Medicinal (LQMed) – Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, Brazil,
| | | | - Maíra Ingrid Vitorino
- Laboratório de Antibióticos, Bioquímica, Ensino e Modelagem Molecular (LABiEMol) – Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil,
| | | | | | - Lúcio Mendes Cabral
- Laboratório de Tecnologia Industrial Farmacêutica (LabTIF) – Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliane Pedra Dias
- Programa de Pós-Graduação em Patologia (PPG-UFF) – Hospital Universitário Antônio Pedro, Universidade Federal Fluminense, Niterói, Brazil,
| | - Helena Carla Castro
- Laboratório de Antibióticos, Bioquímica, Ensino e Modelagem Molecular (LABiEMol) – Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil,
- Programa de Pós-Graduação em Patologia (PPG-UFF) – Hospital Universitário Antônio Pedro, Universidade Federal Fluminense, Niterói, Brazil,
| | - Plínio Cunha Satlher
- Laboratório de Antibióticos, Bioquímica, Ensino e Modelagem Molecular (LABiEMol) – Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil,
- Laboratório de Tecnologia Industrial Farmacêutica (LabTIF) – Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| |
Collapse
|
24
|
Medina FG, Marrero JG, Macías-Alonso M, González MC, Córdova-Guerrero I, Teissier García AG, Osegueda-Robles S. Coumarin heterocyclic derivatives: chemical synthesis and biological activity. Nat Prod Rep 2015; 32:1472-507. [PMID: 26151411 DOI: 10.1039/c4np00162a] [Citation(s) in RCA: 306] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review highlights the broad range of science that has arisen from the synthesis of coumarin-linked and fused heterocycle derivatives. Specific topics include their synthesis and biological activity.
Collapse
Affiliation(s)
- Fernanda G Medina
- Instituto Politécnico Nacional, Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato, Av. Mineral de Valenciana, No. 200, Col. Fracc. Industrial Puerto Interior, C.P. 36275 Silao de la Victoria, Guanajuato, Mexico.
| | | | | | | | | | | | | |
Collapse
|
25
|
Batchu H, Bhattacharyya S, Kant R, Batra S. Palladium-Catalyzed Chelation-Assisted Regioselective Oxidative Dehydrogenative Homocoupling/Ortho-Hydroxylation in N-Phenylpyrazoles. J Org Chem 2015; 80:7360-74. [DOI: 10.1021/acs.joc.5b00733] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | | | - Sanjay Batra
- Academy of Scientific and Innovative Research, New Delhi, 110025, India
| |
Collapse
|
26
|
Synthesis, characterization and quantum-chemical calculations of novel series of pyridones, quinazolinones and pyrazoles heterocyclic compounds. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0644-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
27
|
Caesium carbonate supported on hydroxyapatite-encapsulated Ni0.5
Zn0.5
Fe2
O4
nanocrystallites as a novel magnetically basic catalyst for the one-pot synthesis of pyrazolo[1,2-b]phthalazine-5,10-diones. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3288] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
28
|
Bashti A, Kiasat AR, Mokhtari B. Synthesis and characterization of dicationic 4,4′-bipyridinium dichloride ordered mesoporous silica nanocomposite and its application in the preparation of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives. RSC Adv 2015. [DOI: 10.1039/c4ra17067a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Application of SBA@BiPy2+ 2Cl− nanocomposite as a novel environmentally safe heterogeneous nanoreactor for the one-pot solvent-free synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives.
Collapse
Affiliation(s)
- Aigin Bashti
- Chemistry Department
- College of Science
- Shahid Chamran University
- Ahvaz
- Iran
| | - Ali Reza Kiasat
- Chemistry Department
- College of Science
- Shahid Chamran University
- Ahvaz
- Iran
| | - Babak Mokhtari
- Chemistry Department
- College of Science
- Shahid Chamran University
- Ahvaz
- Iran
| |
Collapse
|
29
|
Vázquez K, Espinosa-Bustos C, Soto-Delgado J, Tapia RA, Varela J, Birriel E, Segura R, Pizarro J, Cerecetto H, González M, Paulino M, Salas CO. New aryloxy-quinone derivatives as potential anti-Chagasic agents: synthesis, trypanosomicidal activity, electrochemical properties, pharmacophore elucidation and 3D-QSAR analysis. RSC Adv 2015. [DOI: 10.1039/c5ra10122k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A set of new aryloxy-quinones were synthesized and evaluated in vitro against the epimastigote form of Trypanosoma cruzi and their unspecific cytotoxicity was tested on murine macrophages J-774 cells.
Collapse
|
30
|
Hamzeh-Mivehroud M, Sokouti B, Dastmalchi S. An Introduction to the Basic Concepts in QSAR-Aided Drug Design. QUANTITATIVE STRUCTURE-ACTIVITY RELATIONSHIPS IN DRUG DESIGN, PREDICTIVE TOXICOLOGY, AND RISK ASSESSMENT 2015. [DOI: 10.4018/978-1-4666-8136-1.ch001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The need for the development of new drugs to combat existing and newly identified conditions is unavoidable. One of the important tools used in the advanced drug development pipeline is computer-aided drug design. Traditionally, to find a drug many ligands were synthesized and evaluated for their effectiveness using suitable bioassays and if all other drug-likeness features were met, the candidate(s) would possibly reach the market. Although this approach is still in use in advanced format, computational methods are an indispensable component of modern drug development projects. One of the methods used from very early days of rationalizing the drug design approaches is Quantitative Structure-Activity Relationship (QSAR). This chapter overviews QSAR modeling steps by introducing molecular descriptors, mathematical model development for relating biological activities to molecular structures, and model validation. At the end, several successful cases where QSAR studies were used extensively are presented.
Collapse
Affiliation(s)
- Maryam Hamzeh-Mivehroud
- Biotechnology Research Center & School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Babak Sokouti
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Siavoush Dastmalchi
- Biotechnology Research Center & School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
31
|
Synthesis and biological evaluation of novel 2,3-disubstituted quinoxaline derivatives as antileishmanial and antitrypanosomal agents. Eur J Med Chem 2015; 90:107-23. [DOI: 10.1016/j.ejmech.2014.11.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 08/29/2014] [Accepted: 11/08/2014] [Indexed: 01/09/2023]
|
32
|
Khoraamabadi-zad A, Azadmanesh M, Karamian R, Asadbegy M, Akbari M. Triethanolamine as an inexpensive and efficient catalyst for the green synthesis of novel 1H-pyrazolo[1,2-a]pyridazine-5,8-diones under ultrasound irradiation in water and their antibacterial activity. RSC Adv 2014. [DOI: 10.1039/c4ra07096h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
33
|
Alizadeh A, Ghanbaripour R. Synthesis of 3-(3-Methyl-1-aryl-1H-pyrazol-5-yl)-2H-2-chromen-2-one Derivatives via a One-Pot, Three-Component Reaction. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.867507] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
34
|
Chavan HV, Adsul LK, Kotmale AS, Dhakane VD, Thakare VN, Bandgar BP. Design, synthesis, characterization andin vitroandin vivoanti-inflammatory evaluation of novel pyrazole-based chalcones. J Enzyme Inhib Med Chem 2014; 30:22-31. [DOI: 10.3109/14756366.2013.873037] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
|
35
|
Kalaria PN, Satasia SP, Raval DK. Synthesis, characterization and pharmacological screening of some novel 5-imidazopyrazole incorporated polyhydroquinoline derivatives. Eur J Med Chem 2014; 78:207-16. [PMID: 24681985 DOI: 10.1016/j.ejmech.2014.02.015] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 09/06/2013] [Accepted: 02/08/2014] [Indexed: 10/25/2022]
Abstract
A new category of polyhydroquinoline derivatives 8a-t were synthesized in moderate to good yield (64-85%) by one-pot three-component cyclocondensation reaction of 5-(1H-imidazol-1-yl)-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde 3 with various enaminones 6a-h and different active methylene compounds (malononitrile 7a, ethylcaynoacetate 7b and caynoacetamide 7c) in absolute ethanol. The newly synthesized compounds were evaluated for their in vitro antimalarial activity against Plasmodium falciparum, in vitro antibacterial activity against a panel of pathogenic strains of bacteria and fungi and also for their antitubercular activity against Mycobacterium tuberculosis H37Rv strain. Two of them (8n, 8t) exhibited excellent antimalarial activity. Some of them exhibited excellent antibacterial activity and moderate antituberculosis activity compared with the first line drugs.
Collapse
Affiliation(s)
- Piyush N Kalaria
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India
| | - Shailesh P Satasia
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India
| | - Dipak K Raval
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India.
| |
Collapse
|
36
|
Safaei-Ghomi J, Shahbazi-Alavi H, Ziarati A, Teymuri R, Saberi MR. A highly flexible green synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives with CuI nanoparticles as catalyst under solvent-free conditions. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2013.11.046] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
37
|
Mohammad A. Anti-microbial potentials of hydrazonone derivatives: A promising scaffold. ACTA ACUST UNITED AC 2014. [DOI: 10.4103/2348-0734.124367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
38
|
Badadhe PV, Patil LR, Bhagat SS, Chate AV, Shinde DW, Nikam MD, Gill CH. Synthesis and Antimicrobial Screening of Some Novel Chromones and Pyrazoles with Incorporated Isoxazole Moieties. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- P. V. Badadhe
- PG Department of Chemistry; MJS College; Shrigonda; 413701; Maharashtra; India
| | - L. R. Patil
- PG Department of Chemistry; MJS College; Shrigonda; 413701; Maharashtra; India
| | - S. S. Bhagat
- Department of Chemistry; Dr. Babasaheb Ambedkar Marathwada University; Aurangabad; 431004; Maharashtra; India
| | - A. V. Chate
- Department of Chemistry; Dr. Babasaheb Ambedkar Marathwada University; Aurangabad; 431004; Maharashtra; India
| | - D. W. Shinde
- Department of Chemistry; Dr. Babasaheb Ambedkar Marathwada University; Aurangabad; 431004; Maharashtra; India
| | - M. D. Nikam
- Department of Chemistry; Dr. Babasaheb Ambedkar Marathwada University; Aurangabad; 431004; Maharashtra; India
| | - C. H. Gill
- Department of Chemistry; Dr. Babasaheb Ambedkar Marathwada University; Aurangabad; 431004; Maharashtra; India
| |
Collapse
|
39
|
Siddiqui ZN, Farooq F, Musthafa TM, Ahmad A, Khan AU. Synthesis, characterization and antimicrobial evaluation of novel halopyrazole derivatives. JOURNAL OF SAUDI CHEMICAL SOCIETY 2013. [DOI: 10.1016/j.jscs.2011.03.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
40
|
A Simple and Efficient Synthesis of Ethyl 1-Aryl-4-formyl-1H-pyrazole-3-carboxylates. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
41
|
Design, synthesis, characterization and anti-inflammatory evaluation of novel pyrazole amalgamated flavones. Bioorg Med Chem Lett 2013; 23:1315-21. [PMID: 23357629 DOI: 10.1016/j.bmcl.2012.12.094] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 12/19/2012] [Accepted: 12/28/2012] [Indexed: 11/24/2022]
Abstract
A series of novel pyrazole amalgamated flavones has been designed and synthesized from 1-methyl-5-(2,4,6-trimethoxy-phenyl)-1H-pyrazole 6. The structures of regioisomers 6 and 7 were resolved by 2D (1)H-(1)H COSY, (1)H-(13)C HSQC and (1)H-(13)C HMBC experiments. The newly synthesized compounds were tested for their in vitro COX inhibition and in vivo carrageenan induced hind paw edema in rats and acetic acid induced vascular permeability in mice. Although the compounds have inhibitory profile against both COX-1 and COX-2, some of the compounds are found to be selective against COX-2, supported by inhibition of paw edema and vascular permeability. Docking studies were also carried out to determine the structural features which sway the anti-inflammatory activity of the tested compounds. The keto and phenolic -OH are major factors that are prominently involved in interaction with COX-2 active site.
Collapse
|
42
|
Bandgar BP, Chavan HV, Adsul LK, Thakare VN, Shringare SN, Shaikh R, Gacche RN. Design, synthesis, characterization and biological evaluation of novel pyrazole integrated benzophenones. Bioorg Med Chem Lett 2012; 23:912-6. [PMID: 23290048 DOI: 10.1016/j.bmcl.2012.10.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 09/17/2012] [Accepted: 10/05/2012] [Indexed: 12/22/2022]
Abstract
A series of novel pyrazole integrated benzophenones (9a-j) have been designed, synthesized from 1-methyl-5-(2,4,6-trimethoxy-phenyl)-1H-pyrazole 6. The structures of the regioisomers 6 and 7 were determined by 2D (1)H-(1)H COSY, (1)H-(13)C HSQC and (1)H-(13)C HMBC experiments. The newly synthesized compounds (9a-j) were evaluated for in vivo anti-inflammatory activity by carrageenan paw edema in rats and in vitro COX-1/COX-2 inhibition and antioxidant potential. Among the synthesized compounds, compounds 9b, 9d and 9f, were found to be active anti-inflammatory agents in addition to having potent antioxidant activity.
Collapse
Affiliation(s)
- Babasaheb P Bandgar
- Medicinal Chemistry Research Laboratory, School of Chemical Sciences, Solapur University, Solapur 413 255, Maharashtra, India.
| | | | | | | | | | | | | |
Collapse
|
43
|
Asiri AM, Faidallah HM, Alamry KA, Ng SW, Tiekink ERT. 2-[1-(1-Oxoindan-2-yl)eth-yl]indan-1-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2314. [PMID: 22904789 PMCID: PMC3414182 DOI: 10.1107/s1600536812029315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 06/27/2012] [Indexed: 06/01/2023]
Abstract
In the title compound, C(20)H(18)O(2), the fused-ring systems are essentially planar (r.m.s. deviations of the nine fitted atoms = 0.009 and 0.027 Å) and exhibit an orthogonal relationship [dihedral angle = 79.83 (5)°]. To a first approximation, the ketone-O atoms are directed to opposite sides of the mol-ecule. A three-dimensional architecture arises in the crystal packing owing to C-H⋯O, C-H⋯π and π-π inter-actions [between centrosymmetrically related benzene rings with centroid-centroid distance = 3.7647 (10) Å].
Collapse
Affiliation(s)
- Abdullah M. Asiri
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia
| | - Hassan M. Faidallah
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia
| | - Khalid A. Alamry
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia
| | - Seik Weng Ng
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | |
Collapse
|
44
|
Asiri AM, Faidallah HM, Zayed MEM, Ng SW, Tiekink ERT. 2-[(E)-4-Meth-oxy-benzyl-idene]-1,2,3,4-tetra-hydro-naphthalen-1-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2190. [PMID: 22798855 PMCID: PMC3393990 DOI: 10.1107/s160053681202805x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 06/20/2012] [Indexed: 11/10/2022]
Abstract
Two independent mol-ecules (A and B) comprise the asymmetric unit of the title compound, C(18)H(16)O(2). Mol-ecule B is virtually superimposable upon A. Minor differences are noted in the dihedral angles between the terminal benzene rings of 56.03 (10) and 54.62 (10)°, and in the orientations of meth-oxy groups with respect to the benzene rings to which they are attached [C-O-C-C torsion angles = 169.11 (19) and -172.37 (18)°]. The cyclo-hexene ring of each fused ring system has a screw-boat conformation. In the crystal, C-H⋯π inter-actions assemble mol-ecules into a supra-molecular array in the ab plane.
Collapse
Affiliation(s)
- Abdullah M. Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
| | - Hassan M. Faidallah
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
| | - Mohie E. M. Zayed
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
| | - Seik Weng Ng
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | |
Collapse
|
45
|
Asiri AM, Faidallah HM, Alamry KA, Ng SW, Tiekink ERT. (2E)-2-(Thio-phen-2-yl-methyl-idene)-1,2,3,4-tetra-hydro-naphthalen-1-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2298. [PMID: 22798939 PMCID: PMC3394074 DOI: 10.1107/s1600536812029169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 06/27/2012] [Indexed: 11/11/2022]
Abstract
In the title compound, C(15)H(12)OS, the cyclo-hexene ring has a twisted boat conformation with the C atom between the ketone and methyl-ene atom and this methyl-ene C atom lying 0.280 (3) and 0.760 (3) Å, respectively, from the plane through the remaining four atoms (r.m.s. deviation = 0.004 Å). The dihedral angle between the benzene and thio-phene rings [21.64 (9)°] indicates an overall twist in the mol-ecule. The thio-phene S and ketone O atoms are anti, an orientation that allows the close approach of these atoms [3.3116 (17) Å] in the crystal structure and which leads to the formation of helical supra-molecular chains along the c axis.
Collapse
|
46
|
Asiri AM, Faidallah HM, Sobahi TR, Ng SW, Tiekink ERT. 1-Phenyl-1H-pyrazole-4-carbaldehyde. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1088. [PMID: 22589951 PMCID: PMC3344042 DOI: 10.1107/s1600536812010896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Accepted: 03/13/2012] [Indexed: 05/31/2023]
Abstract
In the title mol-ecule, C(10)H(8)N(2)O, the five- and six-membered rings form a dihedral angle of 10.14 (9)°. The aldehyde group is almost coplanar with the pyrazole ring to which it is connected [O-C-C-C torsion angle = -179.35 (17)°]. In the crystal, inversion dimers are linked by four C-H⋯O inter-actions as the carbonyl O atom accepts two such bonds. The dimeric aggregates are linked into supra-molecular layers in the ac plane by C-H⋯π and π-π [ring centroid(pyrrole)⋯ring centroid(phen-yl) = 3.8058 (10) Å] inter-actions.
Collapse
Affiliation(s)
- Abdullah M. Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
- The Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, PO Box 80203, Saudi Arabia
| | - Hassan M. Faidallah
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
| | - Tariq R. Sobahi
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
| | - Seik Weng Ng
- Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | |
Collapse
|
47
|
Asiri AM, Faidallah HM, Al-Nemari KF, Ng SW, Tiekink ERT. (2E)-2-(Furan-2-yl-methyl-idene)-2,3-dihydro-1H-inden-1-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1065. [PMID: 22589932 PMCID: PMC3344023 DOI: 10.1107/s1600536812010501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 03/09/2012] [Indexed: 12/02/2022]
Abstract
In the title compound, C14H10O2, the five-membered ring of the inden-1-one residue is almost planar (r.m.s. deviation = 0.035 Å). A twist about the single bond linking the two residues is evident [C—C—C—C torsion angle = −13.2 (5)°]. The three-dimensional architecture is stabilized by C—H⋯O (involving the trifurcated carbonyl O atom), C—H⋯π and π–π interactions [between the five- and six-membered rings of inden-1-one residues; ring centroid–centroid distance = 3.7983 (17) Å]. The sample studied was a non-merohedral twin; the minor component refined to approximately 36%.
Collapse
|
48
|
Asiri AM, Faidallah HM, Al-Nemari KF, Ng SW, Tiekink ERT. (2E)-2-[(2H-1,3-Benzodioxol-5-yl)methyl-idene]-2,3-dihydro-1H-inden-1-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1015. [PMID: 22589889 PMCID: PMC3343980 DOI: 10.1107/s1600536812009464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Accepted: 03/04/2012] [Indexed: 11/10/2022]
Abstract
In the title compound, C(17)H(12)O(3), each of the five-membered rings in the inden-1-one and 1,3-benzodioxole residues is almost planar (r.m.s. deviations = 0.041 and 0.033 Å, respectively). A small twist about the single bond linking the two residues is evident [the C-C-C-C torsion angle = 8.7 (4)°]. Supra-molecular zigzag layers propagating in the ac plane are formed in the crystal via C-H⋯O inter-actions. The layers are linked via π-π inter-actions between the five- and six-membered rings of 1,3-benzodioxole residues [centroid-centroid distance = 3.4977 (14) Å].
Collapse
|
49
|
Pyrazole carbohydrazide derivatives of pharmaceutical interest. Pharmaceuticals (Basel) 2012; 5:317-24. [PMID: 24281381 PMCID: PMC3763639 DOI: 10.3390/ph5030317] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 03/09/2012] [Accepted: 03/12/2012] [Indexed: 11/17/2022] Open
Abstract
The main purpose of this paper is to provide an insight into the biological activities of pyrazole derivatives which contain the carbohydrazide moiety.
Collapse
|
50
|
Asiri AM, Faidallah HM, Al-Nemari KF, Ng SW, Tiekink ERT. (2E)-2-[(2E)-3-Phenyl-prop-2-en-1-yl-idene]-2,3-dihydro-1H-inden-1-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o814. [PMID: 22412679 PMCID: PMC3297876 DOI: 10.1107/s1600536812007131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 02/16/2012] [Indexed: 11/17/2022]
Abstract
The title indan-1-one derivative, C18H14O, is planar with an r.m.s. deviation for all 19 non-H atoms of 0.098 Å. The conformation about each of the C=C bonds [1.343 (3) and 1.349 (3) Å] is E. Supramolecular layers in the bc plane, mediated by C—H⋯O and π–π [ring centroid–centroid distance = 3.5282 (15) Å] interactions, feature in the crystal packing.
Collapse
|