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Feng Y, He J, Wei Y, Tang T, Li C, Liu P. One-Pot Two-Step Strategy for Efficient Synthesis of 3-Aryl-4-(arylthio)-1H-pyrazol-5-amines Derivatives. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202107045] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Wei Y, Liu P, Liu Y, He J, Li X, Li S, Zhao J. NIS-promoted three-component reaction of 3-oxo-3-arylpropanenitriles with arylsulfonyl hydrazides. Org Biomol Chem 2021; 19:3932-3939. [PMID: 33949584 DOI: 10.1039/d1ob00438g] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new three-component reaction of 3-oxo-3-arylpropanenitriles with arylsulfonyl hydrazides has been established, and an expanded inventory of 3-aryl-4-(arylthio)-1H-pyrazol-5-amines is synthesized by sequential cyclization and sulfenylation reactions under the action of NIS. In addition to the attractive features of multicomponent reactions, the protocol presents broad substrate scope, good functional group tolerance and mild reaction conditions. The utility of this procedure is further established by gram-scale synthesis as well as the diversified transformations of the products to useful compounds.
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Affiliation(s)
- Yueting Wei
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832003, China.
| | - Ping Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832003, China.
| | - Yali Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832003, China.
| | - Jing He
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832003, China.
| | - Xuezhen Li
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832003, China.
| | - Shiwu Li
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832003, China.
| | - Jixing Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832003, China.
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Aggarwal R, Singh G, Kumar S, McCabe T, Rozas I. Preparation of 4,7-Dihydro-1H-pyrazolo[3,4-b]pyridine-5-nitriles in a Multicomponent Domino Process. ChemistrySelect 2016. [DOI: 10.1002/slct.201601201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ranjana Aggarwal
- Department of Chemistry; Kurukshetra University; Kurukshetra- 136119, Haryana India
| | - Gulshan Singh
- Department of Chemistry; Kurukshetra University; Kurukshetra- 136119, Haryana India
| | - Suresh Kumar
- Department of Chemistry; Kurukshetra University; Kurukshetra- 136119, Haryana India
| | - Thomas McCabe
- School of Chemistry, Trinity Biomedical Sciences Institute; Trinity College Dublin; 154-160 Pearse St. Dublin 2 Ireland
| | - Isabel Rozas
- School of Chemistry, Trinity Biomedical Sciences Institute; Trinity College Dublin; 154-160 Pearse St. Dublin 2 Ireland
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Pendri A, Dodd DS, Chen J, Cvijic ME, Kang L, Baska RA, Carlson KE, Burford NT, Sun C, Ewing WR, Gerritz SW. Solid phase synthesis of 1,5-diarylpyrazole-4-carboxamides: discovery of antagonists of the CB-1 receptor. ACS COMBINATORIAL SCIENCE 2012; 14:197-204. [PMID: 22340081 DOI: 10.1021/co200147y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We have developed a solid phase synthesis route to 1,5-substituted pyrazole-4-carboxamides with three diversity points aimed at the discovery of new compounds as potential G-Protein coupled receptor (GPCR) ligands. The new chemistry involves acylation of a resin bound secondary amine with a β-ketoester via transamidation, conversion of the resulting β-ketoamide to the corresponding vinylogous amide, pyrazole formation upon reaction with a aryl hydrzine, and cleavage of the product from the resin. Using the reported methodology, we describe the syntheses of multiple arrays of pyrazoles that were used collectively to construct a library of more than 1000 analogues. Several members of this library displayed submicromolar antagonist activities at the cannabinoid subtype 1 (CB-1) receptor.
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Affiliation(s)
- Annapurna Pendri
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Dharmpal S. Dodd
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Jing Chen
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Mary Ellen Cvijic
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Liya Kang
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Rose A. Baska
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Kenneth E. Carlson
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Neil T. Burford
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Chongqing Sun
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - William R. Ewing
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
| | - Samuel W. Gerritz
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut
06492, United States
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Li Y, Hong D, Zhu Y, Lu P, Wang Y. One-pot synthesis of 5-sulfonamidopyrazole from terminal alkynes, sulfonyl azides and hydrozones. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Aggarwal R, Kumar V, Kumar R, Singh SP. Approaches towards the synthesis of 5-aminopyrazoles. Beilstein J Org Chem 2011; 7:179-97. [PMID: 21448263 PMCID: PMC3063075 DOI: 10.3762/bjoc.7.25] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 12/10/2010] [Indexed: 11/25/2022] Open
Abstract
The biological and medicinal properties of 5-aminopyrazoles have prompted enormous research aimed at developing synthetic routes to these heterocyles. This review focuses on the biological properties associated with this system. Various synthetic methods developed up to 2010 for these compounds are described, particularly those that involve the reactions of β-ketonitriles, malononitrile, alkylidenemalononitriles and their derivatives with hydrazines, as well as some novel miscellaneous methods.
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Affiliation(s)
- Ranjana Aggarwal
- Department of Chemistry, Kurukshetra University, Kurukshetra-136 119, Haryana, India
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Gao Y, Lam Y. Synthesis of Pyrazolo[5,1-d][1,2,3,5]tetrazine-4(3H)-ones. ACTA ACUST UNITED AC 2009; 12:69-74. [DOI: 10.1021/cc900063y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yaojun Gao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Yulin Lam
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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Ma W, Peterson B, Kelson A, Laborde E. Efficient Synthesis of Trisubstituted Pyrazoles and Isoxazoles Using a Traceless “Catch and Release” Solid-Phase Strategy. ACTA ACUST UNITED AC 2009; 11:697-703. [DOI: 10.1021/cc900045t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenli Ma
- Department of Chemistry, Telik, Inc., 3165 Porter Drive, Palo Alto, California 94304
| | - Brian Peterson
- Department of Chemistry, Telik, Inc., 3165 Porter Drive, Palo Alto, California 94304
| | - Andrew Kelson
- Department of Chemistry, Telik, Inc., 3165 Porter Drive, Palo Alto, California 94304
| | - Edgardo Laborde
- Department of Chemistry, Telik, Inc., 3165 Porter Drive, Palo Alto, California 94304
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Harju K, Vesterinen J, Yli-Kauhaluoma J. Solid-Phase Synthesis of Amino Acid Derived N-Unsubstituted Pyrazoles via Sydnones. Org Lett 2009; 11:2219-21. [DOI: 10.1021/ol900704b] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kirsi Harju
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, P.O. Box 56, FI-00014 University of Helsinki, Finland
| | - Johanna Vesterinen
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, P.O. Box 56, FI-00014 University of Helsinki, Finland
| | - Jari Yli-Kauhaluoma
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, P.O. Box 56, FI-00014 University of Helsinki, Finland
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Affiliation(s)
- Turan Ozturk
- Istanbul Technical University, Science Faculty, Chemistry Department, Organic Chemistry, 34469 Maslak, Istanbul, Turkey.
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Jung N, Wiehn M, Bräse S. Multifunctional Linkers for Combinatorial Solid Phase Synthesis. Top Curr Chem (Cham) 2007. [DOI: 10.1007/128_2007_118] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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An expeditious synthesis of 3-amino 2H-pyrazoles promoted by methanesulphonic acid under solvent and solvent free conditions. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.07.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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