1
|
Pu W, Wan S, Zhou Q, Gong Y, Fu X, Mu G, Zhang G, Wang C. Copper-Catalyzed Intramolecular Decarboxylative C(sp2)-Heteroatom Cross-Couplings: Mechanism Insights and Synthetic Applications. J Org Chem 2024; 89:11939-11949. [PMID: 39177441 DOI: 10.1021/acs.joc.4c00353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Decarboxylative C(sp2)-heteroatom cross-coupling reactions hold extraordinary potential for the sustainable preparation of biologically active scaffolds. Herein, we report a copper sulfate/1,10-phenathroline catalytic system for the decarboxylative intramolecular C(sp2)-O, C(sp2)-S, and C(sp2)-N coupling reactions leading to the construction of a series of benzo[b]furans, benzo[b]thiophenes, and indole derivatives from the corresponding coumarins, thiocoumarins, or quinolones, respectively. Our mechanistic study based on benzo[b]furan formation suggests a three-step process of the transformations, which consists of (i) base-mediated hydrolytic ring opening of coumarin, (ii) copper-oxygen co-initiated radical decarboxylation, and (iii) copper-catalyzed C-heteroatom cross coupling. Application of this method in the total synthesis of egonol, a bioactive natural product, was demonstrated successfully, with an overall yield of 51.7%.
Collapse
Affiliation(s)
- Wenchen Pu
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610064, China
| | - Shunli Wan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Qiang Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Yanqiu Gong
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610064, China
| | - Xuewen Fu
- Jinhua Huanke Environmental Technology Co., Ltd., Jinhua 321000, China
| | - Guanmin Mu
- Orient Baolin Technology Development (Beijing) Co., Ltd., Beijing 100000, China
| | - Guolin Zhang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Chun Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| |
Collapse
|
2
|
Bai Y, Yuan Z, Yuan S, He Z. Recent advances of Pin1 inhibitors as potential anticancer agents. Bioorg Chem 2024; 144:107171. [PMID: 38325131 DOI: 10.1016/j.bioorg.2024.107171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/12/2024] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
Pin1 (proline isomerase peptidyl-prolyl isomerase NIMA-interacting-1), as a member of PPIase family, catalyzes cis-trans isomerization of pThr/Ser-Pro amide bonds of its substrate proteins, further regulating cell proliferation, division, apoptosis, and transformation. Pin1 is overexpressed in various cancers and is positively correlated with tumor initiation and progression. Pin1 inhibition can effectively reduce tumor growth and cancer stem cell expansion, block metastatic spread, and restore chemosensitivity, suggesting that targeting Pin1 may be an effective strategy for cancer treatment. Considering the promising therapeutic effects of Pin1 inhibitors on cancers, we herein are intended to comprehensively summarize the reported Pin1 inhibitors, mainly highlighting their structures, biological functions and binding modes, in hope of providing a reference for the future drug discovery.
Collapse
Affiliation(s)
- Yiru Bai
- Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - Ziqiao Yuan
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Shuo Yuan
- Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China.
| | - Zhangxu He
- Pharmacy College, Henan University of Chinese Medicine, 450046 Zhengzhou, China.
| |
Collapse
|
3
|
Abbas AA, Dawood KM. Anticancer therapeutic potential of benzofuran scaffolds. RSC Adv 2023; 13:11096-11120. [PMID: 37056966 PMCID: PMC10086673 DOI: 10.1039/d3ra01383a] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 03/31/2023] [Indexed: 04/15/2023] Open
Abstract
Benzofuran moiety is the main component of many biologically active natural and synthetic heterocycles. These heterocycles have unique therapeutic potentials and are involved in various clinical drugs. The reported results confirmed the extraordinary inhibitory potency of such benzofurans against a panel of human cancer cell lines compared with a wide array of reference anticancer drugs. Several publications about the anticancer potencies of benzofuran-based heterocycles were encountered. The recent developments of anticancer activities of both natural and synthetic benzofuran scaffolds during 2019-2022 are thoroughly covered. Many of the described benzofurans are promising candidates for development as anticancer agents based on their outstanding inhibitory potency against a panel of human cancer cells compared with reference anticancer drugs. These findings encourage medicinal chemists to explore new areas to improve human health and reduce suffering.
Collapse
Affiliation(s)
- Ashraf A Abbas
- Department of Chemistry, Faculty of Science, Cairo University Giza 12613 Egypt +20-2-35727556 +20-2-35676602
| | - Kamal M Dawood
- Department of Chemistry, Faculty of Science, Cairo University Giza 12613 Egypt +20-2-35727556 +20-2-35676602
| |
Collapse
|
4
|
Abstract
Regulated cell death predominantly involves apoptosis, autophagy, and regulated necrosis. It is vital that we understand how key regulatory signals can control the process of cell death. Pin1 is a cis-trans isomerase that catalyzes the isomerization of phosphorylated serine or threonine-proline motifs of a protein, thereby acting as a crucial molecular switch and regulating the protein functionality and the signaling pathways involved. However, we know very little about how Pin1-associated pathways might play a role in regulated cell death. In this paper, we review the role of Pin1 in regulated cell death and related research progress and summarize Pin1-related pathways in regulated cell death. Aside from the involvement of Pin1 in the apoptosis that accompanies neurodegenerative diseases, accumulating evidence suggests that Pin1 also plays a role in regulated necrosis and autophagy, thereby exhibiting distinct effects, including both neurotoxic and neuroprotective effects. Gaining an enhanced understanding of Pin1 in neuronal death may provide us with new options for the development of therapeutic target for neurodegenerative disorders.
Collapse
|
5
|
Mattio LM, Pinna C, Catinella G, Musso L, Pedersen KJ, Krogfelt KA, Dallavalle S, Pinto A. Synthesis and Antimicrobial Activity of δ-Viniferin Analogues and Isosteres. Molecules 2021; 26:7594. [PMID: 34946674 PMCID: PMC8703454 DOI: 10.3390/molecules26247594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/08/2021] [Accepted: 12/12/2021] [Indexed: 12/17/2022] Open
Abstract
The natural stilbenoid dehydro-δ-viniferin, containing a benzofuran core, has been recently identified as a promising antimicrobial agent. To define the structural elements relevant to its activity, we modified the styryl moiety, appended at C5 of the benzofuran ring. In this paper, we report the construction of stilbenoid-derived 2,3-diaryl-5-substituted benzofurans, which allowed us to prepare a focused collection of dehydro-δ-viniferin analogues. The antimicrobial activity of the synthesized compounds was evaluated against S. aureus ATCC29213. The simplified analogue 5,5'-(2-(4-hydroxyphenyl)benzofuran-3,5-diyl)bis(benzene-1,3-diol), obtained in three steps from 4-bromo-2-iodophenol (63% overall yield), emerged as a promising candidate for further investigation (MIC = 4 µg/mL).
Collapse
Affiliation(s)
- Luce Micaela Mattio
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Cecilia Pinna
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Giorgia Catinella
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Loana Musso
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Kasandra Juliet Pedersen
- Institute of Molecular and Medical Biology, Roskilde University, 4000 Roskilde, Denmark; (K.J.P.); (K.A.K.)
| | - Karen Angeliki Krogfelt
- Institute of Molecular and Medical Biology, Roskilde University, 4000 Roskilde, Denmark; (K.J.P.); (K.A.K.)
| | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| |
Collapse
|
6
|
de Araújo RSA, da Silva-Junior EF, de Aquino TM, Scotti MT, Ishiki HM, Scotti L, Mendonça-Junior FJB. Computer-Aided Drug Design Applied to Secondary Metabolites as Anticancer Agents. Curr Top Med Chem 2021; 20:1677-1703. [PMID: 32515312 DOI: 10.2174/1568026620666200607191838] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/06/2019] [Accepted: 01/05/2020] [Indexed: 12/11/2022]
Abstract
Computer-Aided Drug Design (CADD) techniques have garnered a great deal of attention in academia and industry because of their great versatility, low costs, possibilities of cost reduction in in vitro screening and in the development of synthetic steps; these techniques are compared with highthroughput screening, in particular for candidate drugs. The secondary metabolism of plants and other organisms provide substantial amounts of new chemical structures, many of which have numerous biological and pharmacological properties for virtually every existing disease, including cancer. In oncology, compounds such as vimblastine, vincristine, taxol, podophyllotoxin, captothecin and cytarabine are examples of how important natural products enhance the cancer-fighting therapeutic arsenal. In this context, this review presents an update of Ligand-Based Drug Design and Structure-Based Drug Design techniques applied to flavonoids, alkaloids and coumarins in the search of new compounds or fragments that can be used in oncology. A systematical search using various databases was performed. The search was limited to articles published in the last 10 years. The great diversity of chemical structures (coumarin, flavonoids and alkaloids) with cancer properties, associated with infinite synthetic possibilities for obtaining analogous compounds, creates a huge chemical environment with potential to be explored, and creates a major difficulty, for screening studies to select compounds with more promising activity for a selected target. CADD techniques appear to be the least expensive and most efficient alternatives to perform virtual screening studies, aiming to selected compounds with better activity profiles and better "drugability".
Collapse
Affiliation(s)
| | | | - Thiago Mendonça de Aquino
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, Maceio-AL, Brazil
| | - Marcus Tullius Scotti
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, Maceio-AL, Brazil
| | - Hamilton M Ishiki
- University of Western Sao Paulo (Unoeste), Presidente Prudente- SP, Brazil
| | - Luciana Scotti
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraiba, Joao Pessoa-PB, Brazil
| | | |
Collapse
|
7
|
Liou YC, Wang HW, Edukondalu A, Lin W. Phosphine-Catalyzed Chemoselective Reduction/Elimination/Wittig Sequence for Synthesis of Functionalized 3-Alkenyl Benzofurans. Org Lett 2021; 23:3064-3069. [PMID: 33821660 DOI: 10.1021/acs.orglett.1c00737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An efficient protocol for the construction of functionalized 3-alkenyl benzofurans is demonstrated under metal-free conditions using catalytic amount of phosphine proceeding an intramolecular Wittig reaction. This one-pot reaction initiated by the phospha-Michael addition of phosphine to O-acylated nitrostyrene, in which phosphine was in-situ-generated from the chemoselective reduction of phosphine oxide with PhSiH3, would provide the phosphorus ylide to result in the aforementioned multifunctionalized benzofuran via O-acylation/nitrous acid elimination/Wittig reaction.
Collapse
Affiliation(s)
- Yan-Cheng Liou
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
| | - Heng-Wei Wang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
| | - Athukuri Edukondalu
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
| |
Collapse
|
8
|
Targeting Pin1 for Modulation of Cell Motility and Cancer Therapy. Biomedicines 2021; 9:biomedicines9040359. [PMID: 33807199 PMCID: PMC8065645 DOI: 10.3390/biomedicines9040359] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 01/09/2023] Open
Abstract
Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 (Pin1) specifically binds and isomerizes the phosphorylated serine/threonine-proline (pSer/Thr-Pro) motif, which leads to changes in protein conformation and function. Pin1 is widely overexpressed in cancers and plays an important role in tumorigenesis. Mounting evidence has revealed that targeting Pin1 is a potential therapeutic approach for various cancers by inhibiting cell proliferation, reducing metastasis, and maintaining genome stability. In this review, we summarize the underlying mechanisms of Pin1-mediated upregulation of oncogenes and downregulation of tumor suppressors in cancer development. Furthermore, we also discuss the multiple roles of Pin1 in cancer hallmarks and examine Pin1 as a desirable pharmaceutical target for cancer therapy. We also summarize the recent progress of Pin1-targeted small-molecule compounds for anticancer activity.
Collapse
|
9
|
Du L, Wang X, Cui G, Xu B. Design, synthesis and biological evaluation of novel thiazole-based derivatives as human Pin1 inhibitors. Bioorg Med Chem 2021; 29:115878. [PMID: 33246256 DOI: 10.1016/j.bmc.2020.115878] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 11/24/2022]
Abstract
Pin1 is a peptidyl prolyl cis-trans isomerase (PPIase) and inhibiting Pin1 is a potential way for discovering anti-tumor agents. With an aim to find potent Pin1 inhibitors with a novel scaffold, a series of thiazole derivatives with an alicyclic heterocycles on the 2-position were designed, synthesized and tested against human Pin1. Compound 9p bearing a 2-oxa-6-azaspiro [3,3] heptane moiety on the thiazole scaffold was identified as the most potent Pin1 inhibitor of this series with an IC50 value of 0.95 μM. The structure-activity relationship (SAR) and molecular modeling study indicated that introducing an alicyclic ring with an H-bond acceptor would be a viable way to improve the binding affinity.
Collapse
Affiliation(s)
- Lifei Du
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Xiaoyu Wang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Guonan Cui
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Bailing Xu
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
| |
Collapse
|
10
|
Chen L, Zhang L, Yan G, Huang D. Recent Advances of Cinnamic Acids in Organic Synthesis. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000217] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Lihua Chen
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Ling Zhang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Guobing Yan
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| |
Collapse
|
11
|
Pu W, Zheng Y, Peng Y. Prolyl Isomerase Pin1 in Human Cancer: Function, Mechanism, and Significance. Front Cell Dev Biol 2020; 8:168. [PMID: 32296699 PMCID: PMC7136398 DOI: 10.3389/fcell.2020.00168] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/29/2020] [Indexed: 02/05/2023] Open
Abstract
Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 (Pin1) is an evolutionally conserved and unique enzyme that specifically catalyzes the cis-trans isomerization of phosphorylated serine/threonine-proline (pSer/Thr-Pro) motif and, subsequently, induces the conformational change of its substrates. Mounting evidence has demonstrated that Pin1 is widely overexpressed and/or overactivated in cancer, exerting a critical influence on tumor initiation and progression via regulation of the biological activity, protein degradation, or nucleus-cytoplasmic distribution of its substrates. Moreover, Pin1 participates in the cancer hallmarks through activating some oncogenes and growth enhancers, or inactivating some tumor suppressors and growth inhibitors, suggesting that Pin1 could be an attractive target for cancer therapy. In this review, we summarize the findings on the dysregulation, mechanisms, and biological functions of Pin1 in cancer cells, and also discuss the significance and potential applications of Pin1 dysregulation in human cancer.
Collapse
Affiliation(s)
- Wenchen Pu
- Laboratory of Molecular Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yuanyuan Zheng
- Laboratory of Molecular Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yong Peng
- Laboratory of Molecular Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University Collaborative Innovation Center of Biotherapy, Chengdu, China
| |
Collapse
|
12
|
Yu JH, Im CY, Min SH. Function of PIN1 in Cancer Development and Its Inhibitors as Cancer Therapeutics. Front Cell Dev Biol 2020; 8:120. [PMID: 32258027 PMCID: PMC7089927 DOI: 10.3389/fcell.2020.00120] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 02/11/2020] [Indexed: 12/15/2022] Open
Abstract
Peptidyl-prolyl isomerase (PIN1) specifically binds and isomerizes the phosphorylated serine/threonine-proline (pSer/Thr-Pro) motif, which results in the alteration of protein structure, function, and stability. The altered structure and function of these phosphorylated proteins regulated by PIN1 are closely related to cancer development. PIN1 is highly expressed in human cancers and promotes cancer as well as cancer stem cells by breaking the balance of oncogenes and tumor suppressors. In this review, we discuss the roles of PIN1 in cancer and PIN1-targeted small-molecule compounds.
Collapse
Affiliation(s)
- Ji Hoon Yu
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, South Korea
| | - Chun Young Im
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, South Korea
| | - Sang-Hyun Min
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, South Korea
| |
Collapse
|
13
|
Chen W, Liu FX, Bian M, Li L, Zhou Z, Yi W. Rh(III)-Catalyzed C-H Activation/Cycloisomerization of N-Phenoxyacetamides with Enynones for One-Pot Assembly of Furylated 2-Alkenylphenols. J Org Chem 2019; 84:15557-15566. [PMID: 31682117 DOI: 10.1021/acs.joc.9b02534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An efficient and practical procedure for one-pot assembly of furylated 2-alkenylphenols has been achieved via the Cp*CyRh-catalyzed regioselective redox-neutral C-H activation/5-exo-dig cyclization cascade using N-phenoxyacetamides and enynones as the viable substrates. The synthetic application of such a protocol has also been demonstrated to highlight the versatility of this transformation.
Collapse
Affiliation(s)
- Weijie Chen
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou , Guangdong 511436 , P. R. China
| | - Fu-Xiaomin Liu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou , Guangdong 511436 , P. R. China
| | - Mengyao Bian
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou , Guangdong 511436 , P. R. China
| | - Liping Li
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou , Guangdong 511436 , P. R. China
| | - Zhi Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou , Guangdong 511436 , P. R. China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou , Guangdong 511436 , P. R. China
| |
Collapse
|
14
|
Liou YC, Karanam P, Jang YJ, Lin W. Synthesis of Functionalized Benzofurans from para-Quinone Methides via Phospha-1,6-Addition/O-Acylation/Wittig Pathway. Org Lett 2019; 21:8008-8012. [DOI: 10.1021/acs.orglett.9b03001] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yan-Cheng Liou
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, R.O.C
| | - Praneeth Karanam
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, R.O.C
| | - Yeong-Jiunn Jang
- Chinese Medicine Research and Development Center, China Medical University Hospital, 2, Yuh-Der Road, Taichung 40447, Taiwan, R.O.C
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, R.O.C
| |
Collapse
|