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Gao Q, Guo Y, Cao P, Fan G, Xu Y. Regioselective synthesis of indazolo[2,3- a]quinazolines enabled by I 2/S-facilitated annulation relay dehydrogenative aromatization of cyclohexanones. Chem Commun (Camb) 2023; 59:13835-13838. [PMID: 37921123 DOI: 10.1039/d3cc04698b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
A method for concise and efficient synthesis of indazolo[2,3-a]quinazolines has been developed via a sequential annulation of 3-aminoindazoles and dehydrogenative aromatization of cyclohexanones. This high regioselectivity is attributed to the fact that the Mannich reaction is superior to the aldol reaction in this system. It is worth mentioning that this convenient process is successfully extended to 3-aminopyrazoles for assembling another class of medicinally prevalent pyrazolo[1,5-a]quinazolines.
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Affiliation(s)
- Qinghe Gao
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P. R. China.
| | - Yimei Guo
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P. R. China.
| | - Penghui Cao
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P. R. China.
| | - Guangping Fan
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P. R. China.
| | - Yongtao Xu
- School of Medical Engineering, Xinxiang Key Laboratory of Biomedical Information Research, Henan International Joint Laboratory of Neural Information analysis and Drug Intelligent Design, Xinxiang Medical University, Xinxiang, Henan 453003, P. R. China.
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2
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Sheng X, Xian J, Liu S, Zhang X, Li B, Wang J, Chen X, Xie F. Green Synthesis of Pyrrolo[1,2-α]quinoxalines by Palladium-Catalyzed Transfer Hydrogenation with Nitriles as Carbon Synthons. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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3
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Song ZQ, Hou YJ, Sun HY, Zhong QD. Crystal structure of 9-( t-butyl)-3,11-dihydro-6 H-pyrazolo [1,5- a]pyrrolo[3′,2′:5,6]pyrido[4,3- d]pyrimidin-6-one hemihydrate, C 30H 32N 10O 3. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C30H32N10O3, monoclinic, P21/c (no. 14), a = 10.447(2) Å, b = 20.130(4) Å, c = 14.772(3) Å, β = 113.001(3)°, V = 2859.7(10) Å3, Z = 4, R
gt
(F) = 0.0556, wR
ref
(F
2) = 0.1663, T = 296 K.
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Affiliation(s)
- Zhi-Qiang Song
- School of Pharmacy , North China University of Science and Technology , 063200 , Caofeidian District , Tangshan , P. R. China
| | - Ying-Jie Hou
- School of Pharmacy , North China University of Science and Technology , 063200 , Caofeidian District , Tangshan , P. R. China
| | - Hai-Yang Sun
- School of Pharmacy , North China University of Science and Technology , 063200 , Caofeidian District , Tangshan , P. R. China
| | - Qi-Di Zhong
- School of Pharmacy , North China University of Science and Technology , 063200 , Caofeidian District , Tangshan , P. R. China
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Zhou Y, Yang CJ, Luo XF, Li AP, Zhang SY, An JX, Zhang ZJ, Ma Y, Zhang BQ, Liu YQ. Design, synthesis, and biological evaluation of novel berberine derivatives against phytopathogenic fungi. PEST MANAGEMENT SCIENCE 2022; 78:4361-4376. [PMID: 35758905 DOI: 10.1002/ps.7055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/01/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The abuse of chemical fungicides not only leads to toxic residues and resistance in plant pathogenic fungi, but also causes environmental pollution and side effects on in humans and animals. Based on the antifungal activities of berberine, seven different types of berberine derivatives (A1-G1) were synthesized, and their antifungal activities against six plant pathogenic fungi were evaluated (Rhizoctonia solani, Botrytis cinerea, Fusarium graminearum, Phytophthora capsici, Sclerotinia sclerotiorum, and Magnaporthe oryzae). RESULTS The results for antifungal activities in vitro showed that berberine derivative E1 displayed good antifungal activity against R. solani with a median effective concentration (EC50 ) of 1.77 μg ml-1 , and berberine derivatives F1 and G1 demonstrated broad-spectrum antifungal activities with EC50 values ranging from 4.43 to 42.23 μg ml-1 against six plant pathogenic fungi. Berberine derivatives (E2-E29, F2-F18, and G2-G9) were further synthesized to investigate the structure-activity relationship (SAR), and compound E20 displayed significant antifungal activity against R. solani with an EC50 value of 0.065 μg ml-1 . Preliminary mechanism studies showed that E20 could cause mycelial shrinkage, cell membrane damage, mitochondrial abnormalities and the accumulation of harmful reactive oxygen species, resulting in cell death in R. solani. Moreover, in vivo experimental results showed that the protective effect of E20 was 97.31% at 5 μg ml-1 , which was better than that of the positive control thifluzamide (50.13% at 5 μg ml-1 ). CONCLUSION Berberine derivative E20 merits further development as a new drug candidate with selective and excellent antifungal activity against R. solani. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yong Zhou
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Cheng-Jie Yang
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Xiong-Fei Luo
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - An-Ping Li
- Gansu Institute for Drug Control, Lanzhou, People's Republic of China
| | - Shao-Yong Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, People's Republic of China
| | - Jun-Xia An
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Zhi-Jun Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Yue Ma
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Bao-Qi Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, People's Republic of China
- State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, Lanzhou, People's Republic of China
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5
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Cyr P, Joseph‐Valcin E, Boissarie P, Simoneau B, Marinier A. Copper‐Catalyzed
N
1
Coupling of 3‐Aminoindazoles and Related Aminoazoles with Aryl Bromides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Patrick Cyr
- Medicinal Chemistry Institute of Research in Immunology and Cancer Université de Montréal Montreal H3C 3J7 Qc Canada
| | - Eve‐Marline Joseph‐Valcin
- Medicinal Chemistry Institute of Research in Immunology and Cancer Université de Montréal Montreal H3C 3J7 Qc Canada
| | - Patrick Boissarie
- Medicinal Chemistry Institute of Research in Immunology and Cancer Université de Montréal Montreal H3C 3J7 Qc Canada
| | - Bruno Simoneau
- Medicinal Chemistry Institute of Research in Immunology and Cancer Université de Montréal Montreal H3C 3J7 Qc Canada
| | - Anne Marinier
- Medicinal Chemistry Institute of Research in Immunology and Cancer Université de Montréal Montreal H3C 3J7 Qc Canada
- Département de chimie Faculté des Arts et Sciences Université de Montréal Montreal H2V 0B3 Qc Canada
- Département de Pharmacologie Faculté de Médecine Université de Montréal Montreal H3C 3J7 Qc Canada
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7
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Oeser P, Koudelka J, Petrenko A, Tobrman T. Recent Progress Concerning the N-Arylation of Indoles. Molecules 2021; 26:molecules26165079. [PMID: 34443667 PMCID: PMC8402097 DOI: 10.3390/molecules26165079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
This review summarizes the current state-of-the-art procedures in terms of the preparation of N-arylindoles. After a short introduction, the transition-metal-free procedures available for the N-arylation of indoles are briefly discussed. Then, the nickel-catalyzed and palladium-catalyzed N-arylation of indoles are both discussed. In the next section, copper-catalyzed procedures for the N-arylation of indoles are described. The final section focuses on recent findings in the field of biologically active N-arylindoles.
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Ramle AQ, Fei CC, Tiekink ERT, Basirun WJ. Indoleninyl-substituted pyrimido[1,2- b]indazoles via a facile condensation reaction. RSC Adv 2021; 11:24647-24651. [PMID: 35481028 PMCID: PMC9036913 DOI: 10.1039/d1ra04372b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/05/2021] [Indexed: 01/20/2023] Open
Abstract
A new series of pyrimido[1,2-b]indazoles bearing indolenine moieties was synthesized through a simple condensation reaction with up to 94% yield. The present method features the versatile formation of a pyrimidine ring with a broad range of substrates, great functional group compatibility and facile synthetic operation. The work offers opportunities in drug development as well as in materials science.
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Affiliation(s)
- Abdul Qaiyum Ramle
- Department of Chemistry, University of Malaya Kuala Lumpur 50603 Malaysia
| | - Chee Chin Fei
- Nanotechnology and Catalysis Research Centre, University of Malaya Kuala Lumpur 50603 Malaysia
| | - Edward R T Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University Bandar Sunway Selangor Darul Ehsan 47500 Malaysia
| | - Wan Jefrey Basirun
- Department of Chemistry, University of Malaya Kuala Lumpur 50603 Malaysia
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9
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Zhang H, Wang M, Wu X, Zhu C. Heterocyclization Reagents for Rapid Assembly of N‐Fused Heteroarenes from Alkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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Zhang H, Wang M, Wu X, Zhu C. Heterocyclization Reagents for Rapid Assembly of N-Fused Heteroarenes from Alkenes. Angew Chem Int Ed Engl 2020; 60:3714-3719. [PMID: 33140527 DOI: 10.1002/anie.202013089] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Indexed: 12/17/2022]
Abstract
N-Fused heterocycles are of particular use and upmost importance in multiple fields. Herein, we disclose a conceptually new approach for the rapid assembly of N-fused heteroarenes from alkenes. A portfolio of strategically designed heterocyclization reagents are readily prepared for the cascade reaction. A plethora of N-fused heteroarenes including seven types of heterocyclic core are furnished. The protocol features a broad functional-group compatibility and high product diversity, and provides a practical tool for late-stage heteroarene elaboration.
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Affiliation(s)
- Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China.,Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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