1
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Li MM, Huang H, Pu Y, Tian W, Deng Y, Lu J. A close look into the biological and synthetic aspects of fused pyrazole derivatives. Eur J Med Chem 2022; 243:114739. [PMID: 36126386 DOI: 10.1016/j.ejmech.2022.114739] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022]
Abstract
The fusion of pyrazole scaffold with other skeletons creates a class of attractive molecules, demonstrating significant biological and chemical potentiality in the development of medicinal chemistry. Over the past few decades, numerous biologically active molecules featuring fused pyrazole moieties have been excavated and synthesized, some of which represented by sildenafil have been marketed as drugs, and the biological importance together with chemical synthesis strategies of fused pyrazole compounds, including structural modification based on lead compounds, have been steadily progressing. In this review, we focused our attention on the biological importance of fused pyrazoles and highlighted recent progress in the synthesis of this framework over the past 10 years. What' s more, the limitations, challenges, and future prospects were proposed, wishing to provide references for the development of pyrazole fused frameworks in the field of medicinal chemistry. Contents.
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Affiliation(s)
- Mei-Mei Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Hui Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yiru Pu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wanrong Tian
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yun Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jun Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, 999077, China.
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2
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Design, synthesis, evaluation of new 3-acetylisoxazolines and their hybrid analogous as anticancer agents: In vitro and in silico analysis. Comput Biol Chem 2022; 98:107666. [DOI: 10.1016/j.compbiolchem.2022.107666] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/10/2022] [Accepted: 03/14/2022] [Indexed: 01/08/2023]
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3
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Synthesis of Pyrazoles through [3+2] Cyclization of Nitrile Imines with Cinnamaldehydes Followed by Air Oxidation. ChemistrySelect 2021. [DOI: 10.1002/slct.202103915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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4
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Sharma S, Singh V. Exploration of pyrazole based
aldo‐x
bifunctional building blocks for the synthesis of pyrazole annulated molecular architectures. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Shubham Sharma
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar India
| | - Virender Singh
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar India
- Department of Chemistry Central University of Punjab Bathinda India
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5
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Olyaei A, Sadeghpour M. Recent developments in the synthesis and applications of furopyrazoles. NEW J CHEM 2020. [DOI: 10.1039/d0nj02178d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This review aims to describe the different strategies developed so far for the synthesis of furopyrazoles and their biological and pharmacological properties.
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Affiliation(s)
- Abolfazl Olyaei
- Department of Chemistry
- Payame Noor University (PNU)
- Tehran
- Iran
| | - Madieh Sadeghpour
- Department of Chemistry
- Takestan Branch, Islamic Azad University
- Takestan
- Iran
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6
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Aqua mediated multicomponent reaction under phase transfer catalysis: A novel and green approach to access fused pyrazoles. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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7
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Tsai SE, Chiang KH, Tseng CC, Chen NW, Chern CY, Wong FF. Facile One-Pot Synthesis of Methyl 1-Aryl-1H
-1,2,4-triazole-3-carboxylates from Nitrilimines with Vilsmeier Reagent. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801808] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shuo-En Tsai
- School of Pharmacy; China Medical University; No. 91, Hsueh-Shih Rd., Taichung 40402 Taiwan R.O.C
- The Ph.D. Program for Biotech Pharmaceutical Industry; China Medical University; No. 91 Hsueh-Shih Rd. 40402 Taichung Taiwan, R.O.C
| | - Kun-Heng Chiang
- School of Pharmacy; China Medical University; No. 91, Hsueh-Shih Rd., Taichung 40402 Taiwan R.O.C
| | - Ching-Chun Tseng
- School of Pharmacy; China Medical University; No. 91, Hsueh-Shih Rd., Taichung 40402 Taiwan R.O.C
- The Ph.D. Program for Biotech Pharmaceutical Industry; China Medical University; No. 91 Hsueh-Shih Rd. 40402 Taichung Taiwan, R.O.C
| | - Nai-Wei Chen
- Master Program for Pharmaceutical Manufacture; China Medical University; No. 91, Hsueh-Shih Rd. 40402 Taichung Taiwan
| | - Ching-Yuh Chern
- Department of Applied Chemistry; National Chia-Yi University; 60004 Chia-Yi Taiwan
| | - Fung Fuh Wong
- School of Pharmacy; China Medical University; No. 91, Hsueh-Shih Rd., Taichung 40402 Taiwan R.O.C
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8
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Bertuzzi G, Crotti S, Calandro P, Bonini BF, Monaco I, Locatelli E, Fochi M, Zani P, Strocchi E, Mazzanti A, Chiariello M, Franchini MC. Quinone-Fused Pyrazoles through 1,3-Dipolar Cycloadditions: Synthesis of Tricyclic Scaffolds and in vitro Cytotoxic Activity Evaluation on Glioblastoma Cancer Cells. ChemMedChem 2018; 13:1744-1750. [PMID: 29966045 DOI: 10.1002/cmdc.201800251] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/25/2018] [Indexed: 01/06/2023]
Abstract
A novel and straightforward synthesis of highly substituted isoquinoline-5,8-dione fused tricyclic pyrazoles is reported. The key step of the synthetic sequence is a regioselective, Ag2 CO3 promoted, 1,3-dipolar cycloaddition of C-heteroaryl-N-aryl nitrilimines and substituted isoquinoline-5,8-diones. The broad functional group tolerability and mild reaction conditions were found to be suitable for the preparation of a small library of compounds. These scaffolds were designed to interact with multiple biological residues, and two of them, after brief synthetic elaborations, were analyzed by molecular docking studies as potential anticancer drugs. In vitro studies confirmed the potent anticancer effects, showing promising IC50 values as low as 2.5 μm against three different glioblastoma cell lines. Their cytotoxic activity was finally positively correlated to their ability to inhibit PI3K/mTOR kinases, which are responsible for the regulation of diverse cellular processes in human cancer cells.
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Affiliation(s)
- Giulio Bertuzzi
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Simone Crotti
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Pierpaolo Calandro
- Istituto di Fisiologia Clinica and Istituto Toscano Tumori, Core Research Laboratory, Consiglio Nazionale delle Ricerche, Via Fiorentina 1, 53100, Siena, Italy
| | - Bianca Flavia Bonini
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Ilaria Monaco
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Erica Locatelli
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Mariafrancesca Fochi
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Paolo Zani
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Elena Strocchi
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Andrea Mazzanti
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
| | - Mario Chiariello
- Istituto di Fisiologia Clinica and Istituto Toscano Tumori, Core Research Laboratory, Consiglio Nazionale delle Ricerche, Via Fiorentina 1, 53100, Siena, Italy
| | - Mauro Comes Franchini
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
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9
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Fu X, Meng Y, Li X, Stępień M, Chmielewski PJ. Extension of antiaromatic norcorrole by cycloaddition. Chem Commun (Camb) 2018; 54:2510-2513. [DOI: 10.1039/c8cc00447a] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Cycloaddition of iminonitrile to norcorrolatonickel(ii) yields the first chiral antiaromatic tetrapyrrole and pyrazole-fused system of enhanced paratropicity.
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Affiliation(s)
- Xinliang Fu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology Xiangtan
- Hunan 411201
| | - Yankui Meng
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology Xiangtan
- Hunan 411201
| | - Xiaofang Li
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology Xiangtan
- Hunan 411201
| | - Marcin Stępień
- Department of Chemistry
- University of Wrocław
- Wrocław 50 383
- Poland
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10
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Devi N, Shankar R, Singh V. 4-Formyl-Pyrazole-3-Carboxylate: A Useful Aldo-X Bifunctional Precursor for the Syntheses of Pyrazole-fused/Substituted Frameworks. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.3045] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Nisha Devi
- Department of Chemistry; Dr B R Ambedkar National Institute of Technology; Jalandhar 144011 India
| | - Ravi Shankar
- Bio-Organic Chemistry Division; CSIR - Indian Institute of Integrative Medicine; Jammu 180001 India
| | - Virender Singh
- Department of Chemistry; Dr B R Ambedkar National Institute of Technology; Jalandhar 144011 India
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11
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Jiang KM, Luesakul U, Zhao SY, An K, Muangsin N, Neamati N, Jin Y, Lin J. Tautomeric-Dependent Lactam Cycloaddition with Nitrile Oxide: Facile Synthesis of 1,2,4-Oxadiazole[4,5- a]indolone Derivatives. ACS OMEGA 2017; 2:3123-3134. [PMID: 30023685 PMCID: PMC6044867 DOI: 10.1021/acsomega.7b00490] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 06/19/2017] [Indexed: 06/08/2023]
Abstract
A concise, metal-free, and gram-scale strategy to convert indoline-2,3-diones to 1,2,4-oxadiazole[4,5-a]indolones through an improved [3 + 2] cycloaddition of α-ketone-lactam with nitrile oxides has been developed. The lactim form of the resonance structure of isatin in protic solvents is the key active dipolarophile that shows chemo- and regioselectivity under experimental and theoretical conditions. This strategy conveniently enabled the assembly of several 1,2,4-oxadiazole[4,5-a]indolines with a broad range of functional groups. Compounds 3a and 4b exhibit cytotoxicity in the NCI/ADR-RES, SKOV3, and OVCAR8 cell lines.
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Affiliation(s)
- Kun-Ming Jiang
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Urarika Luesakul
- Department
of Medicinal Chemistry, College of Pharmacy, and Translational Oncology
Program, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department
of Chemistry, Faculty of Science, Chulalongkorn
University, Bangkok 10330, Thailand
| | - Shu-Yue Zhao
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Kun An
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Nongnuj Muangsin
- Department
of Chemistry, Faculty of Science, Chulalongkorn
University, Bangkok 10330, Thailand
| | - Nouri Neamati
- Department
of Medicinal Chemistry, College of Pharmacy, and Translational Oncology
Program, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yi Jin
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
- Department
of Medicinal Chemistry, College of Pharmacy, and Translational Oncology
Program, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jun Lin
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
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12
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Khan SA, Asiri AM, Rahman RM, Elroby SA, Aqlan FMS, Wani MY, Sharma K. Multistep Synthesis of Fluorine-Substituted Pyrazolopyrimidine Derivatives With Higher Antibacterial Efficacy Based on In Vitro
Molecular Docking and Density Functional Theory. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2923] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Salman A. Khan
- Chemistry Department, Faculty of Science; King Abdulaziz University; P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department, Faculty of Science; King Abdulaziz University; P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR); King Abdulaziz University; P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - R. M. Rahman
- Chemistry Department, Faculty of Science; King Abdulaziz University; P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Shaaban A. Elroby
- Chemistry Department, Faculty of Science; King Abdulaziz University; P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Chemistry Department, Faculty of Science; Beni-Suef University; Beni-Suef Egypt
| | - Faisal M. S. Aqlan
- Chemistry Department, Faculty of Science; Jeddah University; Jeddah Saudi Arabia
| | - Mohmmad Y. Wani
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine; The University of Texas Health Science Center at Houston; 1881 East Road 77054 Texas USA
| | - Kamlesh Sharma
- Department of Applied Science, School of Engineering and Technology; The NorthCap University; Gurgaon Haryana India
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13
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Straightforward synthesis of a novel ring-fused pyrazole-lactam and in vitro cytotoxic activity on cancer cell lines. Eur J Med Chem 2016; 117:1-7. [DOI: 10.1016/j.ejmech.2016.04.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 04/01/2016] [Accepted: 04/04/2016] [Indexed: 11/22/2022]
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14
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Yen WP, Kung FC, Wong FF. 1,3-Dipolar Cycloaddition of Carbodiimides and Nitrilimines: Synthesis and Mechanistic Study of 5-Amino-1,2,4-triazoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600240] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Singh MS, Chowdhury S, Koley S. Progress in 1,3-dipolar cycloadditions in the recent decade: an update to strategic development towards the arsenal of organic synthesis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.031] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Belskaya NP, Eliseeva AI, Bakulev VA. Hydrazones as substrates for cycloaddition reactions. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4463] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Understanding the molecular mechanism and regioselectivity in the synthesis of celecoxib via a domino reaction: A DFT study. J Mol Graph Model 2015; 60:155-61. [DOI: 10.1016/j.jmgm.2015.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 04/04/2015] [Accepted: 05/13/2015] [Indexed: 11/21/2022]
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18
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Li M, Zhao BX. Progress of the synthesis of condensed pyrazole derivatives (from 2010 to mid-2013). Eur J Med Chem 2014; 85:311-40. [PMID: 25104650 DOI: 10.1016/j.ejmech.2014.07.102] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 07/25/2014] [Accepted: 07/26/2014] [Indexed: 01/08/2023]
Abstract
Condensed pyrazole derivatives are important heterocyclic compounds due to their excellent biological activities and have been widely applied in pharmaceutical and agromedical fields. In recent years, numerous condensed pyrazole derivatives have been synthesized and advanced to clinic studies with various biological activities. In this review, we summarized the reported synthesis methods of condensed pyrazole derivatives from 2010 until now. All compounds are divided into three parts according to the rings connected to pyrazole-ring, i.e. [5, 5], [5,F 6], and [5, 7]-condensed pyrazole derivatives. The biological activities and applications in pharmaceutical fields are briefly introduced to offer an orientation for the design and synthesis of condensed pyrazole derivatives with good biological activities.
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Affiliation(s)
- Meng Li
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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19
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Wang LY, Tsai HJ, Lin HY, Kaneko K, Cheng FY, Shih HS, Wong FF, Huang JJ. One-flask synthesis of 1,3,5-trisubstituted 1,2,4-triazoles from nitriles and hydrazonoyl chlorides via 1,3-dipolar cycloaddition. RSC Adv 2014. [DOI: 10.1039/c4ra00113c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One-flask synthesis of 1,3,5-trisubstituted 1,2,4-triazoles from nitriles and hydrazonoyl chlorides via 1,3-dipolar cycloaddition.
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Affiliation(s)
- Li-Ya Wang
- Graduate Institute of Pharmaceutical Chemistry
- China Medical University
- Taichung 40402, Taiwan
- The Ph.D. Program for Cancer Biology and Drug Discovery
- China Medical University
| | - Henry J. Tsai
- Department of Health and Nutrition Biotechnology
- Asia University
- Taichung 41354, Taiwan
| | - Hui-Yi Lin
- School of Pharmacy
- China Medical University
- Taichung 40402, Taiwan
| | - Kimiyoshi Kaneko
- Department of Medico Pharmaceutical Science
- Nihon Pharmaceutical University
- Saitama, Japan
| | - Fen-Ying Cheng
- Department of Applied Chemistry
- National Chiayi University
- Chiayi City 60004, Taiwan
| | - Hsin-Siao Shih
- Department of Applied Chemistry
- National Chiayi University
- Chiayi City 60004, Taiwan
| | - Fung Fuh Wong
- Graduate Institute of Pharmaceutical Chemistry
- China Medical University
- Taichung 40402, Taiwan
| | - Jiann-Jyh Huang
- Department of Applied Chemistry
- National Chiayi University
- Chiayi City 60004, Taiwan
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20
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Xiao L, Cai S, Liu Q, Liao L, Guo X, Li Y, Jia X, Li F, Liu L. One-step synthesis of polypyrazoles and self-assembled polypyrazole–copper catalysts for click chemistry. Polym Chem 2014. [DOI: 10.1039/c3py01105d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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González PB, Chandanshive JZ, Fochi M, Bonini BF, Mazzanti A, Bernardi L, Locatelli E, Caruana L, Monasterolo C, Comes Franchini M. Experimental and Computational Investigation of the 1,3-Dipolar Cycloaddition of the Ynamidetert-ButylN-Ethynyl-N-phenylcarbamate withC-Carboxymethyl-N-phenylnitrilimine. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Gerten AL, Slade MC, Pugh KM, Stanley LM. Catalytic, enantioselective 1,3-dipolar cycloadditions of nitrile imines with methyleneindolinones. Org Biomol Chem 2013; 11:7834-7. [PMID: 24132663 DOI: 10.1039/c3ob41815d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic, enantioselective 1,3-dipolar cycloadditions of nitrile imines with methyleneindolinones are reported. The spiro[pyrazolin-3,3'-oxindole] products are formed in good yields (up to 98%) and high enantioselectivity (up to 99% ee).
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Affiliation(s)
- Anthony L Gerten
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
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23
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Facile synthesis of novel tetrasubstituted 1-pyrazolines from Baylis–Hillman adducts and acyl diazomethanes. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.05.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Mohareb RM, Al-Omran F. Reaction of pregnenolone with cyanoacetylhydrazine: novel synthesis of hydrazide-hydrazone, pyrazole, pyridine, thiazole, thiophene derivatives and their cytotoxicity evaluations. Steroids 2012; 77:1551-9. [PMID: 23064008 DOI: 10.1016/j.steroids.2012.09.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 09/10/2012] [Accepted: 09/17/2012] [Indexed: 11/17/2022]
Abstract
Pregnenolone (1) was used as a template to develop new anticancer compounds. Ring D modification of 1 through its reaction with cyanoacetylhydrazine (2) gave the hydrazide-hydrazone derivative 3. The latter compound underwent heterocyclization reactions to give the pyrazole, pyridine, thiazole and thiophene derivatives of pregnenolone. The cytotoxicity of the newly synthesized heterocyclic steroids against three human tumor cell lines namely breast adenocarcinoma (MCF-7), non-small cell lung cancer (NCI-H460) and CNS cancer (SF-268) were studied. Some of tested compounds were found to exhibit much higher inhibitory effects towards the three tumor cell lines than the reference drug, doxorubicin.
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Affiliation(s)
- Rafat M Mohareb
- Chemistry Department, Faculty of Science, Cairo University, Cario, Egypt.
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25
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Highly-substituted pyrazoles and pyridazines by MIRC reactions of hydrazone anions and nitrobutadienic fragments. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Borkin DA, Puscau M, Carlson A, Solan A, Wheeler KA, Török B, Dembinski R. Synthesis of diversely 1,3,5-trisubstituted pyrazoles via 5-exo-dig cyclization. Org Biomol Chem 2012; 10:4505-8. [PMID: 22575899 DOI: 10.1039/c2ob25580d] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
5-Exo-dig cyclocondensation of alk-3-yn-1-ones with hydrazines, in the presence of montmorillonite K-10, provides an effective method with a high atom economy for the synthesis of diversely 1,3,5-trisubstituted pyrazoles. The microwave-accelerated reaction proceeds in the absence of solvent and leads to 5-benzyl substituted pyrazoles with good yields (72-91%). The regiochemistry of the process was confirmed by the X-ray crystallographic structure determination of 1-(2-fluorophenyl)-5-(4-methylbenzyl)-3-phenyl-1H-pyrazole.
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Affiliation(s)
- Dmitry A Borkin
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
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