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Shang J, Li Y, Yang N, Xiong L, Wang B. Synthesis and evaluation of novel 1-(((6-substitutedbenzo[ d]thiazol-2-yl)amino)(heteroaryl)methyl)naphthalen-2-ol as pesticidal agents. J Enzyme Inhib Med Chem 2022; 37:641-651. [PMID: 35086409 PMCID: PMC8797731 DOI: 10.1080/14756366.2022.2032687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
To discover new agrochemicals with prominent pesticidal properties, a series of novel β-naphthol derivatives containing benzothiazolylamino and various heteroaryl groups (8a-q) were efficiently synthesised via Betti reaction. The bioassay results showed that most of the synthesised compounds exhibited favourable insecticidal potentials, particularly towards oriental armyworm (50–100% at 200 mg·L−1) and diamondback moth (50–95% at 10 mg·L−1). Compounds 8 b, 8f, 8 g, 8j, 8k, 8n, and 8o possessed LC50 values of 0.0988–5.8864 mg·L−1 against diamondback moth. Compounds 8i, 8 l, and 8 m also displayed lethality rates of 30–90% against spider mite at the concentration of 100 mg·L−1. Overall, some compounds could be considered as new insecticidal/acaricidal leading structures for further investigation. The calcium imaging experiments revealed that 8 h, 8i, and viii could activate the release of calcium ions in insect (M. separata) central neurons at a higher concentration (50 mg·L−1). The SAR analysis provided valuable information for further structural modifications.
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Affiliation(s)
- Junfeng Shang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China.,Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Na Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Lixia Xiong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Baolei Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
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Razmienė B, Řezníčková E, Dambrauskienė V, Ostruszka R, Kubala M, Žukauskaitė A, Kryštof V, Šačkus A, Arbačiauskienė E. Synthesis and Antiproliferative Activity of 2,4,6,7-Tetrasubstituted-2 H-pyrazolo[4,3- c]pyridines. Molecules 2021; 26:6747. [PMID: 34771163 PMCID: PMC8588486 DOI: 10.3390/molecules26216747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/01/2021] [Accepted: 11/04/2021] [Indexed: 11/26/2022] Open
Abstract
A library of 2,4,6,7-tetrasubstituted-2H-pyrazolo[4,3-c]pyridines was prepared from easily accessible 1-phenyl-3-(2-phenylethynyl)-1H-pyrazole-4-carbaldehyde via an iodine-mediated electrophilic cyclization of intermediate 4-(azidomethyl)-1-phenyl-3-(phenylethynyl)-1H-pyrazoles to 7-iodo-2,6-diphenyl-2H-pyrazolo[4,3-c]pyridines followed by Suzuki cross-couplings with various boronic acids and alkylation reactions. The compounds were evaluated for their antiproliferative activity against K562, MV4-11, and MCF-7 cancer cell lines. The most potent compounds displayed low micromolar GI50 values. 4-(2,6-Diphenyl-2H-pyrazolo[4,3-c]pyridin-7-yl)phenol proved to be the most active, induced poly(ADP-ribose) polymerase 1 (PARP-1) cleavage, activated the initiator enzyme of apoptotic cascade caspase 9, induced a fragmentation of microtubule-associated protein 1-light chain 3 (LC3), and reduced the expression levels of proliferating cell nuclear antigen (PCNA). The obtained results suggest a complex action of 4-(2,6-diphenyl-2H-pyrazolo[4,3-c]pyridin-7-yl)phenol that combines antiproliferative effects with the induction of cell death. Moreover, investigations of the fluorescence properties of the final compounds revealed 7-(4-methoxyphenyl)-2,6-diphenyl-2H-pyrazolo[4,3-c]pyridine as the most potent pH indicator that enables both fluorescence intensity-based and ratiometric pH sensing.
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Affiliation(s)
- Beatričė Razmienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania; (B.R.); (V.D.); (A.Š.)
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
| | - Eva Řezníčková
- Department of Experimental Biology, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; (E.Ř.); (V.K.)
| | - Vaida Dambrauskienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania; (B.R.); (V.D.); (A.Š.)
| | - Radek Ostruszka
- Department of Experimental Physics, Faculty of Science, Palacký University, 17. Listopadu 12, CZ-77146 Olomouc, Czech Republic; (R.O.); (M.K.)
| | - Martin Kubala
- Department of Experimental Physics, Faculty of Science, Palacký University, 17. Listopadu 12, CZ-77146 Olomouc, Czech Republic; (R.O.); (M.K.)
| | - Asta Žukauskaitė
- Department of Chemical Biology, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Vladimír Kryštof
- Department of Experimental Biology, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; (E.Ř.); (V.K.)
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 5, CZ-77900 Olomouc, Czech Republic
| | - Algirdas Šačkus
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania; (B.R.); (V.D.); (A.Š.)
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
| | - Eglė Arbačiauskienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania; (B.R.); (V.D.); (A.Š.)
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Utecht G, Fruziński A, Jasiński M. Polysubstituted 3-trifluoromethylpyrazoles: regioselective (3 + 2)-cycloaddition of trifluoroacetonitrile imines with enol ethers and functional group transformations. Org Biomol Chem 2019; 16:1252-1257. [PMID: 29392253 DOI: 10.1039/c7ob03126b] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-catalysed addition of trifluoroacetonitrile imines to enol ethers provided fully regioselectively (3 + 2)-cycloadducts, which either spontaneously or via Brønsted acid-induced elimination of ROH molecules led to the formation of 3-trifluoromethylated pyrazoles. In the case of 2,3-dihydrofuran, the respective bicyclic intermediate was isolated and its structure was confirmed by X-ray analysis. Using the developed protocol the synthesis of a known antitumor compound SC-560 was performed in 45% yield. Subsequent functionalisations of selected 4-(ω-hydroxyalkyl)pyrazoles at C(5) through lithiation/addition, cross-coupling reactions or via intramolecular Pd-catalysed C-H arylations opened up an access to polysubstituted pyrazoles including unusual tricyclic systems comprising 7-membered rings (oxepane, thiepane and azepane) as the central unit.
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Affiliation(s)
- Greta Utecht
- Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland.
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Kumar SV, Muthusubramanian S, Perumal S. Recent Progress in the Synthesis of Pyrazolopyridines and Their Derivatives. ORG PREP PROCED INT 2019. [DOI: 10.1080/00304948.2018.1542517] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sundaravel Vivek Kumar
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai – 625021, Tamil Nadu, India
| | - Shanmugam Muthusubramanian
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai – 625021, Tamil Nadu, India
| | - Subbu Perumal
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai – 625021, Tamil Nadu, India
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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.
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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
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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
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Eller GA, Vilkauskaitė G, Šačkus A, Martynaitis V, Mamuye AD, Pace V, Holzer W. An unusual thionyl chloride-promoted C-C bond formation to obtain 4,4'-bipyrazolones. Beilstein J Org Chem 2018; 14:1287-1292. [PMID: 29977396 PMCID: PMC6009192 DOI: 10.3762/bjoc.14.110] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/14/2018] [Indexed: 12/12/2022] Open
Abstract
Dialkyl 5,5'-dioxo-4,4'-bipyrazole-4,4'-dicarboxylates are readily obtained by the reaction of 5-hydroxypyrazole-4-carboxylates in refluxing thionyl chloride. The obtained diesters can be transformed into the corresponding 4,4'-bipyrazoles via alkaline hydrolysis and subsequent decarboxylation. Detailed NMR spectroscopic investigations (1H, 13C, 15N) were undertaken with all products prepared. Moreover, the structure of a representative 5,5'-dioxo-4,4'-bipyrazole-4,4'-dicarboxylate was confirmed by X-ray crystal structure analysis.
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Affiliation(s)
- Gernot A Eller
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria
| | - Gytė Vilkauskaitė
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.,Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
| | - Algirdas Šačkus
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania.,Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423, Kaunas, Lithuania
| | - Vytas Martynaitis
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
| | - Ashenafi Damtew Mamuye
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria
| | - Vittorio Pace
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria
| | - Wolfgang Holzer
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria
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Milišiūnaitė V, Arbačiauskienė E, Řezníčková E, Jorda R, Malínková V, Žukauskaitė A, Holzer W, Šačkus A, Kryštof V. Synthesis and anti-mitotic activity of 2,4- or 2,6-disubstituted- and 2,4,6-trisubstituted-2H-pyrazolo[4,3-c]pyridines. Eur J Med Chem 2018; 150:908-919. [PMID: 29602037 DOI: 10.1016/j.ejmech.2018.03.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/10/2018] [Accepted: 03/13/2018] [Indexed: 01/01/2023]
Abstract
An efficient synthetic route for the synthesis of 2H-pyrazolo[4,3-c]pyridines, primarily varying by the substituents at the 2-, 4- and 6-positions, is described here. A Sonogashira-type cross-coupling reaction was employed to yield 3-alkynyl-1H-pyrazole-4-carbaldehydes, ethanones and propanones from the corresponding 1H-pyrazol-3-yl trifluoromethanesulfonates. Subsequent treatment of the coupling products with dry ammonia afforded a versatile library of 2H-pyrazolo[4,3-c]pyridines, which were then evaluated for their cytotoxicity against K562 and MCF-7 cancer cell lines. The most potent of these compounds displayed low micromolar GI50 values in both cell lines. Active compounds induced dose-dependent cell-cycle arrest in mitosis, as shown by flow cytometric analysis of DNA content and phosphorylation of histone H3 at serine-10. Moreover, biochemical assays revealed increased activities of caspases-3/7 in treated cells, specific fragmentation of PARP-1, and phosphorylation of Bcl-2, collectively confirming apoptosis as the mechanism of cell death.
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Affiliation(s)
- Vaida Milišiūnaitė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254, Kaunas, Lithuania
| | - Eglė Arbačiauskienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254, Kaunas, Lithuania
| | - Eva Řezníčková
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Radek Jorda
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Veronika Malínková
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Asta Žukauskaitė
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic; Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Wolfgang Holzer
- Division of Drug Synthesis, Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria
| | - Algirdas Šačkus
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254, Kaunas, Lithuania.
| | - Vladimír Kryštof
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic.
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Wang BL, Zhang LY, Zhan YZ, Zhang Y, Zhang X, Wang LZ, Li ZM. Synthesis and biological activities of novel 1,2,4-triazole thiones and bis(1,2,4-triazole thiones) containing phenylpyrazole and piperazine moieties. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.02.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Synthesis of trifluoromethyl group bearing indoline-based heterocyclic systems and their application for the detection of cyanide. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2015.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Synthesis of pyrazolo[4′,3′:3,4]pyrido[1,2-a]benzimidazoles and related new ring systems by tandem cyclisation of vic-alkynylpyrazole-4-carbaldehydes with (het)aryl-1,2-diamines and investigation of their optical properties. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.092] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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