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Chudasama DD, Patel MS, Parekh JN, Patel HC, Rajput CV, Chikhaliya NP, Ram KR. Ultrasound-promoted convenient and ionic liquid [BMIM]BF 4 assisted green synthesis of diversely functionalized pyrazolo quinoline core via one-pot multicomponent reaction, DFT study and pharmacological evaluation. Mol Divers 2022:10.1007/s11030-022-10498-2. [PMID: 35915391 DOI: 10.1007/s11030-022-10498-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/12/2022] [Indexed: 11/30/2022]
Abstract
An ultrasound-assisted green protocol for one-pot synthesis of a new series of pharmaceutically relevant pyrazolo quinoline derivatives (4a-t) were synthesized, characterized, and evaluated using DFT and biological activities. Pyrazolo quinoline derivatives (4a-t) were synthesized via a three-component tandem reaction of 1,3-dicarbonyl compound (1a-b), substituted aromatic aldehyde (2a-o), and 5-amino indazole (3a) in the presence of 1-butyl-3-methylimidazolium tetrafluoroborate [BMIM]BF4 ionic liquid in ethanol at ambient conditions. The main purpose of the present work is selective functionalization of pyrazolo quinoline (4a-t) core excluding another potential parallel reaction under environmentally benign reaction conditions. The present protocol shows features such as amphiphilic behavior of ionic liquid during reaction transformation, and reusability of the [BMIM]BF4 ionic liquid under mild reaction condition. All newly derived compounds were evaluated for their in vitro anti-inflammatory and antioxidant activity. Among them, compound 4c showed encouraging antioxidant activity compared with standard antioxidant ascorbic acid, and compounds 4n and 4r displayed very good anti-inflammatory activity compared with a standard drug. In this study, a theoretical computational density functional study was also executed to perform the geometry optimizations, frontier molecular orbital approach, and molecular electrostatic potential (MESP). The DFT study was carried out with the basis set DFT/B3LYP/6-31+G (d, p) level of theory. The quantum chemical descriptors (QCDS) and MESP diagrams were plotted to examine the biological reactivities of representative pyrazolo quinolines (4a-t).
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Affiliation(s)
- Dipakkumar D Chudasama
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Manan S Patel
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Jaydeepkumar N Parekh
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Harsh C Patel
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Chetan V Rajput
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Navin P Chikhaliya
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Kesur R Ram
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India.
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2
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Chen DM, Liu JY, Wei M, Wang BW, Chu RH, Chen DS. Synthesis of indazolo[5,4-b][1,6]naphthyridine and indazolo[6,7-b][1,6]naphthyridine derivatives. HETEROCYCL COMMUN 2019. [DOI: 10.1515/hc-2019-0006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractA simple method for the synthesis of the title compounds by an efficient in-situ reduction and cyclization reactions of aromatic aldehydes, tert-butyl 2,4-dioxopiperidine-1-carboxylate and 5-nitro-1H-indazole or 6-nitro-1H-indazole was developed.
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Affiliation(s)
- Dong-Mei Chen
- Kangda College of Nanjing Medical University, Lianyungang 222000, Jiangsu, People’s Republic of China
| | - Jia-Yan Liu
- Kangda College of Nanjing Medical University, Lianyungang 222000, Jiangsu, People’s Republic of China
| | - Ming Wei
- Kangda College of Nanjing Medical University, Lianyungang 222000, Jiangsu, People’s Republic of China
| | - Bing-Wei Wang
- Kangda College of Nanjing Medical University, Lianyungang 222000, Jiangsu, People’s Republic of China
| | - Ruo-Han Chu
- Kangda College of Nanjing Medical University, Lianyungang 222000, Jiangsu, People’s Republic of China
| | - Dong-Sheng Chen
- Kangda College of Nanjing Medical University, Lianyungang 222000, Jiangsu, People’s Republic of China
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3
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Liu J, Chen J, Chen D, Wei M, Chen D. An Efficient Optimization,
In Situ
Reduction and Cyclization Reaction for the Synthesis of Functionalized Pyrazolo[3,4‐
f
]quinolines Derivatives. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jia‐Yan Liu
- Kangda College of Nanjing Medical University Lianyungang 222000 Jiangsu People's Republic of China
| | - Juan Chen
- Lianyungang Branch College of Traditional Chinese MedicineJiangsu Union Technical Institute Lianyungang 222007 Jiangsu People's Republic of China
| | - Dong‐Mei Chen
- Kangda College of Nanjing Medical University Lianyungang 222000 Jiangsu People's Republic of China
| | - Ming Wei
- Kangda College of Nanjing Medical University Lianyungang 222000 Jiangsu People's Republic of China
| | - Dong‐Sheng Chen
- Kangda College of Nanjing Medical University Lianyungang 222000 Jiangsu People's Republic of China
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4
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Regioselective Synthesis of 1,6‐Dihydropyrrolo[2,3‐
g
]indazole Derivatives
via
Three‐Component Domino Reaction. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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