1
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Khettar I, Sinibaldi A, Schettini R, Gorini G, Siddiqa A, Litta AD, De Riccardis F, Izzo I, Sala GD. Flexible and Convergent Enantioselective Total Synthesis of ( R)-Juglanaloids A and B: Two Phthalide Spiro Alkaloids with Potential Alzheimer's Disease Inhibitory Activity. J Org Chem 2024; 89:7255-7262. [PMID: 38718382 DOI: 10.1021/acs.joc.4c00740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Juglanaloids A and B are recently isolated natural products characterized by an unprecedented spiro bicyclic isobenzofuranone-tetrahydrobenzazepinone framework and a promising antiamyloid activity. Here reported is a straightforward convergent total synthesis of these natural products, which were obtained in high enantiomeric purity (94% and >99% ee for juglanaloids A and B, respectively) through an eight-step longest linear sequence, based on an efficient and reliable enantioselective phase-transfer-catalyzed alkylation step. Considering the interesting biological activity of juglanaloids, this convenient, highly enantioselective, flexible, and predictable synthetic strategy promises to be a powerful tool for accessing potentially bioactive spiro bicyclic phthalide-tetrahydrobenzazepinone derivatives.
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Affiliation(s)
- Ibrahim Khettar
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
- Laboratory of Catalysis and Synthesis in Organic Chemistry, Abou Bekr Belkaïd University, Rue Abi Ayed Abdelkrim Fg Pasteur, B.P 119 13000, 13000 Tlemcen, Algeria
| | - Arianna Sinibaldi
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Rosaria Schettini
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Giorgio Gorini
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Ayesha Siddiqa
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Antonella Dentoni Litta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Francesco De Riccardis
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Irene Izzo
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Giorgio Della Sala
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
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2
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Zou J, Qiu ZC, Yu QQ, Wu JM, Wang YH, Shi KD, Li YF, He RR, Qin L, Yao XS, Wang XL, Gao H. Discovery of a Potent Antiosteoporotic Drug Molecular Scaffold Derived from Angelica sinensis and Its Bioinspired Total Synthesis. ACS CENTRAL SCIENCE 2024; 10:628-636. [PMID: 38559293 PMCID: PMC10979506 DOI: 10.1021/acscentsci.3c01414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 04/04/2024]
Abstract
Angelica sinensis, commonly known as Dong Quai in Europe and America and as Dang-gui in China, is a medicinal plant widely utilized for the prevention and treatment of osteoporosis. In this study, we report the discovery of a new category of phthalide from Angelica sinensis, namely falcarinphthalides A and B (1 and 2), which contains two fragments, (3R,8S)-falcarindiol (3) and (Z)-ligustilide (4). Falcarinphthalides A and B (1 and 2) represent two unprecedented carbon skeletons of phthalide in natural products, and their antiosteoporotic activities were evaluated. The structures of 1 and 2, including their absolute configurations, were established using extensive analysis of NMR spectra, chemical derivatization, and ECD/VCD calculations. Based on LC-HR-ESI-MS analysis and DFT calculations, a production mechanism for 1 and 2 involving enzyme-catalyzed Diels-Alder/retro-Diels-Alder reactions was proposed. Falcarinphthalide A (1), the most promising lead compound, exhibits potent in vitro antiosteoporotic activity by inhibiting NF-κB and c-Fos signaling-mediated osteoclastogenesis. Moreover, the bioinspired gram-scale total synthesis of 1, guided by intensive DFT study, has paved the way for further biological investigation. The discovery and gram-scale total synthesis of falcarinphthalide A (1) provide a compelling lead compound and a novel molecular scaffold for treating osteoporosis and other metabolic bone diseases.
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Affiliation(s)
- Jian Zou
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Zuo-Cheng Qiu
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
- College
of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Qiang-Qiang Yu
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Jia-Ming Wu
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Yong-Heng Wang
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Ke-Da Shi
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
| | - Yi-Fang Li
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Rong-Rong He
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Ling Qin
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
| | - Xin-Sheng Yao
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Xin-Luan Wang
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
| | - Hao Gao
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
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3
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Sugano M, Inokuma T, Yamaoka Y, Yamada KI. 5- exo-Selective asymmetric bromolactonization of stilbenecarboxylic acids catalyzed by phenol-bearing chiral thiourea. Org Biomol Chem 2024; 22:1765-1769. [PMID: 38099597 DOI: 10.1039/d3ob01895d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
We developed a novel thiourea Lewis-base catalyst with phenol moieties for the enantioselective 5-exo-bromolactonization of stilbenecarboxylic acids to afford chiral 3-substituted phthalides. The phenol moieties are crucial for the enantio- and regio-selectivity.
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Affiliation(s)
- Masayuki Sugano
- Graduate School of Pharmaceutical Sciences, Tokushima University, Shomachi, Tokushima 770-8505, Japan.
| | - Tsubasa Inokuma
- Graduate School of Pharmaceutical Sciences, Tokushima University, Shomachi, Tokushima 770-8505, Japan.
- Research Cluster on "Key Material Development, " Tokushima University, Shomachi, Tokushima 770-8505, Japan
| | - Yousuke Yamaoka
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Ken-Ichi Yamada
- Graduate School of Pharmaceutical Sciences, Tokushima University, Shomachi, Tokushima 770-8505, Japan.
- Research Cluster on "Key Material Development, " Tokushima University, Shomachi, Tokushima 770-8505, Japan
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4
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Chen W, Jiang J, Wang J. Asymmetric Ruthenium-Catalyzed C-H Activation by a Versatile Chiral-Amide-Directing Strategy. Angew Chem Int Ed Engl 2024; 63:e202316741. [PMID: 38102747 DOI: 10.1002/anie.202316741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/17/2023]
Abstract
A versatile and readily available chiral amide directing group has been developed for the ruthenium(II)-catalyzed asymmetric C-H activation. Asymmetric C-H activation of the related chiral benzamides with various olefins, aldehydes and propargylic alcohols has been accomplished with high stereoselectivities, affording a series of chiral products including 3,4-dihydroisocoumarins (up to 96 % ee), isocoumarins (up to 92 % ee), phthalides (up to 99 % ee), chiral bicyclo[2.2.1]heptanes (>20 : 1 dr), 4-alkylidene-3,4-dihydroisocoumarins (up to 97 % ee) and allenes (>20 : 1 dr). Importantly, our methodologies enabled concise syntheses of many biologically active compounds and natural products (e.g., Montroumarin, Cyclosporone E, Cyclosporone Q, Concentricolide, Chuangxinol, and Eleutherol).
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Affiliation(s)
- Wenkun Chen
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, 510006, Guangzhou, P. R. China
| | - Jijun Jiang
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, 510006, Guangzhou, P. R. China
| | - Jun Wang
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, 510006, Guangzhou, P. R. China
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5
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Sankara CS, Namboothiri INN. Hauser-Kraus Annulation Initiated Multi-Cascade Reactions for Facile Access to Functionalized and Fused Oxazepines, Carbazoles and Phenanthridinediones. Chemistry 2024; 30:e202303517. [PMID: 37946675 DOI: 10.1002/chem.202303517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023]
Abstract
The Hauser-Kraus (H-K) annulation of N-unsubstituted 3-olefinic oxindoles with 3-nucleophilic phthalides triggers a cascade of ring expansion and ring contraction reactions through several regioselective steps in one pot. While oxazepines were isolated in the presence of stoichiometric amounts of base at room temperature, carbazoles and phenanthridinediones were the products in the presence of excess base and microwave irradiation. Mechanistic studies guided by stepwise reactions and control experiments revealed that the isolable oxazepine intermediate, formed via ring expansion of the H-K adduct, is the key precursor to carbazole and phenanthridinedione via decarboxylative regioselective cyclizations.
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6
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Abe M, Mizukami A, Yoshida E, Kimachi T, Inamoto K. Chlorobenzene-driven palladium-catalysed lactonisation of benzoic acids. RSC Adv 2024; 14:808-811. [PMID: 38174227 PMCID: PMC10759164 DOI: 10.1039/d3ra08176a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
Herein, we developed a palladium-catalysed C-H cyclisation of benzoic acids in chlorobenzene without additional oxidants. The key to the success of these reactions is the use of chlorobenzene, which serves a dual role as a solvent and an oxidant, thus providing a simple and efficient method for synthesising phthalides.
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Affiliation(s)
- Masahiro Abe
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University 11-68, 9-Bancho, Koshien Nishinomiya Hyogo 663-8179 Japan
| | - Akiho Mizukami
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University 11-68, 9-Bancho, Koshien Nishinomiya Hyogo 663-8179 Japan
| | - Emi Yoshida
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University 11-68, 9-Bancho, Koshien Nishinomiya Hyogo 663-8179 Japan
| | - Tetsutaro Kimachi
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University 11-68, 9-Bancho, Koshien Nishinomiya Hyogo 663-8179 Japan
| | - Kiyofumi Inamoto
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University 11-68, 9-Bancho, Koshien Nishinomiya Hyogo 663-8179 Japan
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7
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Zhang Y, Zhang Z, Xia Y, Wang J, Peng Y, Song G. TfOH-Catalyzed Cascade Reaction: Metal-Free Access to 3,3-Disubstituted Phthalides from o-Alkynylbenzoic Acids. J Org Chem 2023; 88:12924-12934. [PMID: 37643422 DOI: 10.1021/acs.joc.3c00760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
A facile new method for the synthesis of 3,3-disubstituted phthalides is reported. A successive reaction process begins with the TfOH-catalyzed cyclization of o-alkynylbenzoic acids followed by an ortho-regioselective electrophilic alkylation of various electron-rich aromatic compounds or alkenes, which has been successfully developed. The corresponding regioselective products of 3-substituted phthalide were obtained in good to high yields.
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Affiliation(s)
- Yanqiu Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Zhiliang Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yunxin Xia
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jiayi Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yanqing Peng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
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8
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Han M, Liu C, Hu L. Enzyme-Catalyzed Dynamic Kinetic Resolution of 2-Formylbenzoic Acids for the Asymmetric Synthesis of Phthalidyl Esters and Related Prodrugs. J Org Chem 2023; 88:3897-3902. [PMID: 36821136 DOI: 10.1021/acs.joc.2c02531] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
An enzyme-catalyzed dynamic kinetic resolution strategy was applied for the asymmetric synthesis of phthalidyl esters in high yields (up to 95%) and enantiomeric purities (up to 99% ee) through a direct one-pot procedure. Preparation of phthalidyl ester prodrugs and a scale-up reaction demonstrated the potential of this method for practical applications.
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Affiliation(s)
- Maochun Han
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Changming Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Lei Hu
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
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9
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Liu S, Prévost S. Palladium-Catalyzed ortho-C-H Alkoxycarbonylation of Aromatic Aldehydes via a Transient Directing Group Strategy. Org Lett 2023; 25:1380-1385. [PMID: 36825848 DOI: 10.1021/acs.orglett.3c00086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Transient directing groups (TDGs) can be a powerful strategy for directly functionalizing C-H bonds of aldehydes. We report a palladium-catalyzed o-C-H alkoxycarbonylation of benzaldehydes using a catalytic amount of aromatic amine to form a transient imine that plays the role of a monodentate TDG. The reaction conditions were applied to a broad range of aldehydes, and the corresponding 2-formyl benzoates were used as direct precursors for the synthesis of phthalides and 1-isoindolinones.
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Affiliation(s)
- Shanshan Liu
- Laboratoire de Synthèse Organique (LSO - UMR 7652), CNRS, Ecole Polytechnique, ENSTA Paris, Institut Polytechnique de Paris, 828 boulevard des Maréchaux, 91120 Palaiseau, France
| | - Sébastien Prévost
- Laboratoire de Synthèse Organique (LSO - UMR 7652), CNRS, Ecole Polytechnique, ENSTA Paris, Institut Polytechnique de Paris, 828 boulevard des Maréchaux, 91120 Palaiseau, France
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10
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Hong JE, Yoon J, Baek W, Kim K, Kwak JH, Park Y. Electrochemical C(sp 3)-H Lactonization of 2-Alkylbenzoic Acids toward Phthalides. Org Lett 2023; 25:298-303. [PMID: 36583568 DOI: 10.1021/acs.orglett.2c04211] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Herein, we report direct electrochemical C(sp3)-H lactonization of 2-alkylbenzoic acids toward phthalides. The reaction provides a wide substrate scope of 2-alkylbenzoic acids bearing primary to tertiary C(sp3)-H bonds by utilizing a graphite anode, dichloromethane (DCM) solvent, hexafluoroisopropanol (HFIP) cosolvent, and n-Bu4NClO4 electrolyte. Our synthetic approach offers a simple, intuitive, and atom-economical protocol to synthesize various phthalides (25 examples, up to 92% yield) and obtain other 5- and 6-membered lactones (10 examples, up to 83% yield).
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Affiliation(s)
- Jee Eun Hong
- College of Pharmacy, Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam 50834, Republic of Korea
| | - Jisong Yoon
- College of Pharmacy, Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam 50834, Republic of Korea
| | - Woohyun Baek
- College of Pharmacy, Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam 50834, Republic of Korea
| | - Kyumin Kim
- College of Pharmacy, Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam 50834, Republic of Korea
| | - Jae-Hwan Kwak
- College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyeong 1-ro, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Yohan Park
- College of Pharmacy, Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam 50834, Republic of Korea
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11
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Awasthi A, Kumar N, Mishra A, Ravi R, Dalal A, Shankar S, Chandra R. Noscapine-Amino Acid Conjugates Suppress the Progression of Cancer Cells. ACS Pharmacol Transl Sci 2022; 5:1292-1304. [PMID: 36524011 PMCID: PMC9745893 DOI: 10.1021/acsptsci.2c00172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Indexed: 11/16/2022]
Abstract
Lung cancer is the leading cause of cancer deaths globally; 1 in 16 people are diagnosed with lung cancer in their lifetime. Microtubules, a critical cytoskeletal assembly, have an essential role in cell division. Interference with the microtubule assembly leads to genetic instability during mitosis and cancer cell death. Currently, available antimitotic drugs such as vincas and taxanes are limited due to side effects such as alopecia, myelosuppression, and drug resistance. Noscapine, an opium alkaloid, is a tubulin-binding agent and can alter the microtubule assembly, causing cancer cell death. Amino acids are fundamental building blocks for protein synthesis, making them essential for the biosynthesis of cancer cells. However, the ability of amino acids in drug transportation has yet to be exploited in developing noscapine analogues as a potential drug candidate for cancer. Hence, in the present study, we have explored the ninth position of noscapine by introducing a hydroxymethylene group using the Blanc reaction and further coupled it with a series of amino acids to construct five target conjugates in good yields. The synthesized amino acid conjugate molecules were biologically evaluated against the A549 lung cancer cell line, among which the noscapine-tryptophan conjugate showed IC50 = 32 μM, as compared to noscapine alone (IC50 = 73 μM). Morphological changes in cancer cells, cell cycle arrest in the G1 phase, and ethidium bromide/acridine orange staining indicated promising anticancer properties. Molecular docking confirmed strong binding to tubulin, with a score of -41.47 kJ/mol with all 3D coordinates and significant involvement of molecular forces, including the hydrogen bonds and hydrophobic interactions. Molecular dynamics simulations demonstrated a stable binding of noscapine-tryptophan conjugate for a prolonged time (100 ns) with the involvement of free energy through the reaction coordinates analyses, solving the bioavailability of parent noscapine to the body.
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Affiliation(s)
- Amardeep Awasthi
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Neeraj Kumar
- Department of Neurology, Northwestern University, Feinberg School of Medicine, Chicago, Illinois60611, United States
| | - Abhijeet Mishra
- Department of Biochemistry, Shivaji College, University of Delhi, Delhi-110027, India
| | - Rangnath Ravi
- Department of Chemistry, Shivaji College, University of Delhi, Delhi-110027, India
| | - Anu Dalal
- Department of Chemistry, Indian Institute of Technology, Delhi, Delhi-110016, India
| | - Saurav Shankar
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi-110007, India
- Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi-110007, India
- Institute of Nano Medical Sciences, University of Delhi, Delhi-110007, India
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12
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Aloia A, Casiello M, D'Accolti L, Fusco C, Nacci A, Monopoli A. Direct Synthesis of 3-Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp 2 )-H Activation in Ionic Liquids. Chemistry 2022; 28:e202202350. [PMID: 35997238 PMCID: PMC9826210 DOI: 10.1002/chem.202202350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Indexed: 01/11/2023]
Abstract
A novel Pd-catalysed oxidative coupling between benzoic acids and vinylarenes or acrylates to furnish isocoumarins and phthalides is reported. The reaction proceeds smoothly in molten tetrabutylammonium acetate via a selective C-H bond activation, with very low percentage of ligand-free palladium acetate as the catalyst, under atmospheric pressure of oxygen. Sub-stoichiometric amount of copper acetate is also required as a reoxidant for the palladium.
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Affiliation(s)
- Andrea Aloia
- Chemistry DepartmentUniversità degli Studi di Bari Aldo MoroVia Orabona 470126BariItaly
| | - Michele Casiello
- Chemistry DepartmentUniversità degli Studi di Bari Aldo MoroVia Orabona 470126BariItaly
| | - Lucia D'Accolti
- Chemistry DepartmentUniversità degli Studi di Bari Aldo MoroVia Orabona 470126BariItaly,CNR – Istituto di Chimica dei Composti Organometallici (ICCOM) Bari SectionConsiglio Nazionale delle RicercheVia Orabona 470126BariItaly
| | - Caterina Fusco
- CNR – Istituto di Chimica dei Composti Organometallici (ICCOM) Bari SectionConsiglio Nazionale delle RicercheVia Orabona 470126BariItaly
| | - Angelo Nacci
- Chemistry DepartmentUniversità degli Studi di Bari Aldo MoroVia Orabona 470126BariItaly,CNR – Istituto di Chimica dei Composti Organometallici (ICCOM) Bari SectionConsiglio Nazionale delle RicercheVia Orabona 470126BariItaly
| | - Antonio Monopoli
- Chemistry DepartmentUniversità degli Studi di Bari Aldo MoroVia Orabona 470126BariItaly,CNR – Istituto di Chimica dei Composti Organometallici (ICCOM) Bari SectionConsiglio Nazionale delle RicercheVia Orabona 470126BariItaly
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13
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Serusi L, Zebrowski P, Schörgenhumer J, Massa A, Waser M. Stereoselective Syntheses of Masked β-Amino Acid Containing Phthalides. Helv Chim Acta 2022; 105:e202200110. [PMID: 36845268 PMCID: PMC7614226 DOI: 10.1002/hlca.202200110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We herein report a protocol for the asymmetric aldol-initiated cascade addition of isoxazolidin-5-ones to ortho-cyanobenzaldehydes by using Takemoto's bifunctional organocatalyst. This approach allows for the synthesis of various novel β2,2-amino acid-phthalide conjugates with good enantio- and diastereoselectivities in reasonable yields and the further ring-opening of these compounds to acyclic carboxylic acid derivatives was demonstrated too.
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Affiliation(s)
- Lorenzo Serusi
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, AT-4040 Linz, Austria,Dipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, IT-84084-Fisciano (SA), Italy
| | - Paul Zebrowski
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, AT-4040 Linz, Austria
| | - Johannes Schörgenhumer
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Antonio Massa
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, IT-84084-Fisciano (SA), Italy
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, AT-4040 Linz, Austria,
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14
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Sadıkoğulları BC, Şenel P, Çini N, Faysal AA, Odabaşoğlu M, Özdemir AD, Gölcü A. An Overview of Natural and Synthetic Phthalides Involved in Cancer Studies: Past, Present, and Future. ChemistrySelect 2022. [DOI: 10.1002/slct.202202004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bleda Can Sadıkoğulları
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Pelin Şenel
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Nejla Çini
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Abdullah Al Faysal
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Mustafa Odabaşoğlu
- Karadeniz Technical University Faculty of Sciences and Letters Department of Chemistry Trabzon 61080 Turkey
| | - Ayşe Daut Özdemir
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Ayşegül Gölcü
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
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15
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Si M, Yan J, Ding Y, Huang H. Pd-Catalyzed carbonylative lactonization of 2-halidearomatic aldehydes with H 2O as a nucleophile. Org Biomol Chem 2022; 20:3917-3921. [PMID: 35510574 DOI: 10.1039/d2ob00623e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A palladium-catalyzed carbonylative cyclization reaction of 2-halidebenzaldehydes with H2O is described, which provides a strategy for the synthesis of diversely substituted 3,3'-oxyphthalides. Notably, the obtained 3,3'-oxyphthalide could be easily transformed into 3-aryl and alkyl phthalides with excellent efficiency using organozinc reagents under mild reaction conditions.
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Affiliation(s)
- Min Si
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Jiaqi Yan
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Yongzheng Ding
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Hanmin Huang
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China. .,State Key Laboratory of Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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16
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Petrignet J, Thibonnet J, Commeiras L, Gueyrard D. Recent advances in the preparation of 3‐alkylidenephthalides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Julien Petrignet
- Université de Tours Faculté de Pharmacie de Tours: Universite de Tours Faculte de Pharmacie de Tours chemistry Tours FRANCE
| | - Jerome Thibonnet
- Université de Tours Faculté de Pharmacie de Tours: Universite de Tours Faculte de Pharmacie de Tours chemsitry Tours FRANCE
| | - Laurent Commeiras
- iSm2: Institut des Sciences Moleculaires de Marseille Chemistry FRANCE
| | - David Gueyrard
- UCBL LCO2 43 bd du 11 novembre 1918 69622 Villeurbanne FRANCE
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17
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McClure TJ, Saludares C, Martinez G, Orozco C, Navarro R. Decarboxylative Allylic Alkylation of Phthalides: Stabilized Benzylic Nucleophiles for sp 3-sp 3 Coupling. J Org Chem 2022; 87:7557-7564. [PMID: 35575695 DOI: 10.1021/acs.joc.2c00723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new family of stabilized benzylic nucleophiles for the palladium-catalyzed decarboxylative allylic alkylation reaction has been developed. Allyl esters derived from 3-carboxyphthalides were found to undergo palladium-catalyzed deallylation and decarboxylation under mild reaction conditions, a process facilitated by the formation of a stabilized aromatic anion. The regioselective allylic coupling of this intermediate afforded a variety of functionalized phthalides in 73-96% yields.
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Affiliation(s)
- Timothy J McClure
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Connor Saludares
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Gisela Martinez
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Cheyenne Orozco
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Raul Navarro
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
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18
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Synthesis and Antioxidant/Anti-Inflammatory Activity of 3-Arylphthalides. Pharmaceuticals (Basel) 2022; 15:ph15050588. [PMID: 35631414 PMCID: PMC9144619 DOI: 10.3390/ph15050588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 02/04/2023] Open
Abstract
Phthalides are a group of compounds with relevant biological activities in different areas such as cytotoxicity, anti-stroke activity, neuroprotection, and inflammation, among others. In this study we designed and synthesized a series of 3-arylphthalide derivatives in order to identify their antioxidant and anti-inflammatory activities. The synthetic methodology was established in terms of atom and step economy through a dehydrative coupling reaction between 3-hydroxyphthalide and different properly functionalized arene rings. The evaluation of the antioxidant activity was performed by the ABTS assay and for the anti-inflammatory activity the inhibition of LPS-induced nitric oxide (NO) production in microglial cells Bv.2 and macrophage cells RAW 264.7 was measured. The synthesized compound 3-(2,4-dihydroxyphenyl)phthalide (5a) showed better antioxidant activity than the Trolox standard and caused strong inhibition of NO production in LPS-stimulated Bv.2 and RAW 264.7 cells. In addition, compound 5a reduced the expression of the pro-inflammatory cytokines Il1b and Il6 in RAW 264.7 cells. These results, which are the first account of the anti-inflammatory activity of 3-arylphthalides, suggest that compound 5a could be a promising candidate for more advanced anti-inflammatory studies.
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19
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Yılmaz ZT, Odabaşoğlu HY, Şenel P, Yüzbaşıoğlu EÇ, Erdoğan T, Özdemir AD, Gölcü A, Odabaşoğlu M, Büyükgüngör O. Identification of a 3-(5-methyl-2-thiazolylamino)phthalide as a new minor groove agent. J Biomol Struct Dyn 2022; 41:4048-4064. [PMID: 35416121 DOI: 10.1080/07391102.2022.2061595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A new 3-(5-methyl-2-thiazolylamino)phthalide molecule, 3-((5-methylthiazol-2-yl)amino)isobenzofuran-1(3H)-one, was synthesized and characterized experimentally by FT-IR, NMR, UV-Vis, and single-crystal X-ray analysis and theoretically by quantum chemical calculations. The single-crystal X-ray studies revealed that the compound crystallizes in the monoclinic space group P-21/c with unit-cell parameters a = 8.0550(6) Å, b = 6.1386(3) Å, c = 23.3228(18) Å, β = 97.724(6)° and Z = 4. Optimized geometries and the vibrational frequencies were studied at the density functional theory (DFT) level by using the hybrid functional B3LYP with a 6-311 G (d,p) basis set. The title compound was evaluated for its anti-quorum sensing (anti-QS) activity on Chromobacterium violaceum 12472 and additionally for its antibacterial activity against Staphylococcus aureus 29213, Staphylococcus epidermidis 12228, Pseudomonas aeruginosa 27853, Escherichia coli 25922, and Proteus mirabilis 14153. The lowest MIC value was 0.24 μg/mL for S. aureus 29213 and the highest MIC value was 30.75 μg/mL for E. coli 25922. While anti-bacterial activity was observed in those other than the S. epidermidis and P. Mirabilis, anti-QS activity wasn't detected. Investigations on dsDNA binding affinity indicate that the title compound binds to dsDNA via the groove binding mode. Molecular docking calculations and molecular dynamics simulations results showed also that the title compound prefers binding to the minor groove of dsDNA and remains stable in the minor groove throughout the molecular dynamics simulation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | | | - Pelin Şenel
- Department of Chemistry, Faculty of Sciences and Letters, Istanbul Technical University, Maslak, Turkey Istanbul
| | - Elif Çepni Yüzbaşıoğlu
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Vezneciler, Istanbul, Turkey
| | - Taner Erdoğan
- Department of Chemistry and Chemical Processing Technologies, Kocaeli Vocational School, Kocaeli University, Kocaeli, Turkey
| | - Ayşe Daut Özdemir
- Department of Chemistry, Faculty of Sciences and Letters, Istanbul Technical University, Maslak, Turkey Istanbul
| | - Ayşegül Gölcü
- Department of Chemistry, Faculty of Sciences and Letters, Istanbul Technical University, Maslak, Turkey Istanbul
| | - Mustafa Odabaşoğlu
- Department of Chemistry and Chemical Processing Technologies, Denizli Vocational School of Technical Sciences, Pamukkale University, Denizli, Turkey.,Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
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20
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Dethe DH, Beeralingappa NC, Siddiqui SA, Chavan PN. Asymmetric Ru/Cinchonine Dual Catalysis for the One-Pot Synthesis of Optically Active Phthalides from Benzoic Acids and Acrylates. J Org Chem 2022; 87:4617-4630. [PMID: 35266689 DOI: 10.1021/acs.joc.1c02961] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Herein, we report the asymmetric Ru/cinchonine dual catalysis that provides straightforward access to enantioselective synthesis of C-3 substituted phthalides via tandem C-H activation/Michael addition cascade. The use of readily accessible and less expensive [RuCl2(p-cym)]2 and cinchonine catalyst for the one-pot assembly of chiral phthalides greatly overcomes the present trend of using highly sophisticated catalysts. The developed method provides access to both enantiomers of a product using pseudoenantiomeric cinchona alkaloids as catalysts streamlining the synthesis of phthalide in both the optically active forms.
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Affiliation(s)
- Dattatraya H Dethe
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | | | - Salman A Siddiqui
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Prakash N Chavan
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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21
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22
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Yin F, Peng W, Wang C, Qu L, Chen X, Kong L, Wang X. Rhodium(III)‐ Catalyzed Cleavage of C‐C Bond and C‐H Bond Cascaded by Michael Addition for the Conversion of α‐Hydroxy Ketones to Phthalides and Isocoumarins. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fucheng Yin
- China Pharmaceutical University School of Traditional Chinese Pharmacy Nanjing CHINA
| | - Wan Peng
- China Pharmaceutical University State Key Laboratory of Natural Medicines Nanjing CHINA
| | - Cheng Wang
- China Pharmaceutical University State Key Laboratory of Natural Medicines Nanjing CHINA
| | - Lailiang Qu
- China Pharmaceutical University State Key Laboratory of Natural Medicines Nanjing CHINA
| | - Xinye Chen
- China Pharmaceutical University State Key Laboratory of Natural Medicines Nanjing CHINA
| | - Lingyi Kong
- China Pharmaceutical University State Key Laboratory of Natural Medicines Nanjing CHINA
| | - Xiaobing Wang
- China Pharmaceutical University Department of Natural Medicinal Chemistry No. 24Tong Jia Xiang 210009 Nanjing CHINA
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23
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Vinylogous and Arylogous Stereoselective Base-Promoted Phase-Transfer Catalysis. Catalysts 2021. [DOI: 10.3390/catal11121545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Vinylogous enolate and enolate-type carbanions, generated by deprotonation of α,β-unsaturated compounds and characterized by delocalization of the negative charge over two or more carbon atoms, are extensively used in organic synthesis, enabling functionalization and C–C bond formation at remote positions. Similarly, reactions with electrophiles at benzylic and heterobenzylic position are performed through generation of arylogous and heteroarylogous enolate-type nucleophiles. Although widely exploited in metal-catalysis and organocatalysis, it is only in recent years that the vinylogy and arylogy principles have been translated fruitfully in phase-transfer catalyzed processes. This review provides an overview of the methods developed to date, involving vinylogous and (hetero)arylogous carbon nucleophiles under phase-transfer catalytic conditions, highlighting main mechanistic aspects.
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24
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Li X, Li W, Wei W, Fan J, Liu Z, Shi X. Sequential Cobalt/Rhodium‐Catalyzed Tandem Cyclization of Aromatic Aldehydes with Acrylates for Preparing 3‐Substituted Phthalides in Oxygen Atmosphere and Neat Water. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xin‐Ran Li
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 P. R. China
| | - Wan‐Di Li
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 P. R. China
| | - Wen‐Ting Wei
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 P. R. China
| | - Juan Fan
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 P. R. China
| | - Zhong‐Wen Liu
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 P. R. China
| | - Xian‐Ying Shi
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 P. R. China
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25
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Wang S, Miao E, Wang H, Song B, Huang W, Yang W. Rh-Catalyzed cascade C-H activation/C-C cleavage/cyclization of carboxylic acids with cyclopropanols. Chem Commun (Camb) 2021; 57:5929-5932. [PMID: 34013935 DOI: 10.1039/d1cc01778k] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Merging both C-H and C-C activation in a tandem process is a marked challenge. A novel Rh(iii)-catalyzed C-H activation/ring opening C-C cleavage/cyclization of carboxylic acids with cyclopropanols was developed for the synthesis of 3-substituted phthalides and α,β-butenolides. This reaction displays excellent functional group tolerance with respect to both carboxylic acids and cyclopropanols and features relatively mild conditions. Remarkably, the utility of this method was highlighted by the rapid construction of bioactive compounds bearing a 3-substituted phthalide framework via late-stage functionalization.
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Affiliation(s)
- Siqi Wang
- CAS Key Laboratory of Receptor Research, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Pudong, Shanghai 201203, China. and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Erfei Miao
- CAS Key Laboratory of Receptor Research, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Pudong, Shanghai 201203, China. and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Hao Wang
- CAS Key Laboratory of Receptor Research, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Pudong, Shanghai 201203, China. and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Bichao Song
- CAS Key Laboratory of Receptor Research, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Pudong, Shanghai 201203, China. and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Wei Huang
- CAS Key Laboratory of Receptor Research, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Pudong, Shanghai 201203, China. and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China and School of Pharmaceutical Science and Technology, Hangzhou Institute of Advanced Study, Hangzhou 310024, China
| | - Weibo Yang
- CAS Key Laboratory of Receptor Research, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Pudong, Shanghai 201203, China. and University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China and School of Pharmaceutical Science and Technology, Hangzhou Institute of Advanced Study, Hangzhou 310024, China
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26
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Direct and selective synthesis of 3-arylphthalides via nickel-catalyzed aryl addition/intramolecular esterification. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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27
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Xu SY, Zhang R, Zhang SS, Feng CG. Enantioselective synthesis of 3-aryl-phthalides through a nickel-catalyzed stereoconvergent cross-coupling reaction. Org Biomol Chem 2021; 19:4492-4496. [PMID: 33960992 DOI: 10.1039/d1ob00487e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A nickel-catalyzed asymmetric Suzuki-Miyaura cross-coupling of racemic 3-bromo-phthalides and arylboronic acids was realized for the synthesis of diverse chiral 3-aryl-phthalides in moderate to excellent reaction yields. The reaction proceeded in a stereoconvergent manner and high enantioselectivities were observed for most examined examples. A number of functional groups like aldehyde, ester and bromide were well tolerated. Heteroaromatic boronic acids were also competent coupling partners in this reaction.
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Affiliation(s)
- Si-Yu Xu
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Rui Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Shu-Sheng Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Chen-Guo Feng
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. and CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai, 200240, China
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28
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Synthesis and antibacterial activity of racemic paecilocin A and its derivatives against methicillin-sensitive and -resistant Staphylococcus aureus. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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29
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Mandal A, Garai B, Dana S, Bera R, Baidya M. Cross-Dehydrogenative Coupling/Annulation of Arene Carboxylic Acids and Alkenes in Water with Ruthenium(II) Catalyst and Air. Chem Asian J 2020; 15:4009-4013. [PMID: 33090685 DOI: 10.1002/asia.202001087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/10/2020] [Indexed: 12/29/2022]
Abstract
A cross-dehydrogenative coupling of arene carboxylic acids with olefins is reported with ruthenium(II) catalyst employing air and water as green oxidant and solvent, respectively. It offers a robust synthesis of valuable phthalide molecules. A one-pot sequential strategy is also disclosed to access Heck-type products that are apparently difficult to make directly from arene carboxylic acids.
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Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Bholanath Garai
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Ratnadeep Bera
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
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