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Zhou YY, Liu NY, Zhang XJ, Sun YP, Liu Y, Fu QF, Yang BY, Kuang HX. Two new diarylheptanoids from the green walnut husks of Juglans mandshurica Maxim. Nat Prod Res 2023:1-8. [PMID: 36748782 DOI: 10.1080/14786419.2023.2169918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 01/05/2023] [Accepted: 01/13/2023] [Indexed: 02/08/2023]
Abstract
Chemical investigation on the 95% ethanol extract of green walnut husks of Juglans mandshurica Maxim. led to the isolation of two new diarylheptanoid compounds, including Juglanin K (1) and Myricananin I (2), together with ten known compounds (3-13). Their structures were elucidated by extensive analyses of comprehensive spectroscopic methods. The isolated compounds were evaluated for their antibacterial activities against Escherichia coli and Staphylococcus aureus. The results showed that compound 2 had moderate antibacterial activity with the MIC values of 0.313 and 0.156 mg/mL, respectively. compounds 1, 3-7 and 13 showed weakly antibacterial activities against Escherichia coli and Staphylococcus aureus with the MIC values of 0.625-2.5 mg/mL.
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Affiliation(s)
- Yuan-Yuan Zhou
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Ning-Yu Liu
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Xiao-Juan Zhang
- Academic Research Department, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan-Ping Sun
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Yan Liu
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Qi-Feng Fu
- The Experiment Center of Chinese Medicine, Harbin, China
| | - Bing-You Yang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Hai-Xue Kuang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
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2
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Recent Advances in Macrocyclic Drugs and Microwave-Assisted and/or Solid-Supported Synthesis of Macrocycles. Molecules 2022; 27:molecules27031012. [PMID: 35164274 PMCID: PMC8839925 DOI: 10.3390/molecules27031012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 11/19/2022] Open
Abstract
Macrocycles represent attractive candidates in organic synthesis and drug discovery. Since 2014, nineteen macrocyclic drugs, including three radiopharmaceuticals, have been approved by FDA for the treatment of bacterial and viral infections, cancer, obesity, immunosuppression, etc. As such, new synthetic methodologies and high throughput chemistry (e.g., microwave-assisted and/or solid-phase synthesis) to access various macrocycle entities have attracted great interest in this chemical space. This article serves as an update on our previous review related to macrocyclic drugs and new synthetic strategies toward macrocycles (Molecules, 2013, 18, 6230). In this work, I first reviewed recent FDA-approved macrocyclic drugs since 2014, followed by new advances in macrocycle synthesis using high throughput chemistry, including microwave-assisted and/or solid-supported macrocyclization strategies. Examples and highlights of macrocyclization include macrolactonization and macrolactamization, transition-metal catalyzed olefin ring-closure metathesis, intramolecular C–C and C–heteroatom cross-coupling, copper- or ruthenium-catalyzed azide–alkyne cycloaddition, intramolecular SNAr or SN2 nucleophilic substitution, condensation reaction, and multi-component reaction-mediated macrocyclization, and covering the literature since 2010.
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3
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Li Y, Grauso L, Scarpato S, Cacciola NA, Borrelli F, Zidorn C, Mangoni A. Stable Catechol Keto Tautomers in Cytotoxic Heterodimeric Cyclic Diarylheptanoids from the Seagrass Zostera marina. Org Lett 2021; 23:7134-7138. [PMID: 34491069 PMCID: PMC8453622 DOI: 10.1021/acs.orglett.1c02537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Two diarylheptanoid
heterodimers, zosterabisphenones A (1) and B (2), were isolated from the seagrass Zostera marina. They feature unprecedented catechol keto
tautomers, stable because of steric constraints. Their structure elucidation
was based on extensive low-temperature NMR studies and ECD and MS
data, with the essential aid of DFT prediction of NMR and ECD spectra.
Zosterabisphenone B (2) was selectively cytotoxic against
the adenocarcinoma colon cancer cell line HCT116 with IC50 3.6 ± 1.1 μM at 48 h.
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Affiliation(s)
- Yan Li
- Pharmazeutisches Institut, Abteilung Pharmazeutische Biologie, Christian-Albrechts-Universität zu Kiel, Gutenbergstraße 76, 24118, Kiel, Germany
| | - Laura Grauso
- Dipartimento di Agraria, Università degli Studi di Napoli Federico II, Via Università 100, 80055 Portici (NA), Italy
| | - Silvia Scarpato
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Nunzio Antonio Cacciola
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli Federico II, Via Via F. Delpino, 80137 Napoli, Italy
| | - Francesca Borrelli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Christian Zidorn
- Pharmazeutisches Institut, Abteilung Pharmazeutische Biologie, Christian-Albrechts-Universität zu Kiel, Gutenbergstraße 76, 24118, Kiel, Germany
| | - Alfonso Mangoni
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
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Nagasawa S, Fujiki S, Sasano Y, Iwabuchi Y. Chromium-Salen Complex/Nitroxyl Radical Cooperative Catalysis: A Combination for Aerobic Intramolecular Dearomative Coupling of Phenols. J Org Chem 2021; 86:6952-6968. [PMID: 33890777 DOI: 10.1021/acs.joc.1c00438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe an aerobic intramolecular dearomative coupling reaction of tethered phenols using a catalytic system consisting of a chromium-salen (Cr-salen) complex combined with a nitroxyl radical. This novel catalytic system enables formation of various spirocyclic dienone products including those unable to be accessed by previously reported methods efficiently under mild reaction conditions.
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Affiliation(s)
- Shota Nagasawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Shogo Fujiki
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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5
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Recent Advancement of Ullmann Condensation Coupling Reaction in the Formation of Aryl-Oxygen (C-O) Bonding by Copper-Mediated Catalyst. Catalysts 2020. [DOI: 10.3390/catal10101103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross coupling reaction in organic synthesis. The biaryl ether division is not only popular in natural products and synthetic pharmaceuticals but also widely found in many pesticides, polymers, and ligands. Copper catalyst has received great attention owing to the low toxicity and low cost. However, traditional Ullmann-type couplings suffer from limited substrate scopes and harsh reaction conditions. The introduction of homogeneous copper catalyst with presence of bidentate ligands over the past two decades has totally changed this situation as these ligands enable the reaction promoted in mild condition. The reaction scope has also been greatly expanded, rendering this copper-based cross-coupling attractive for both academia and industry. In this review, we will highlight the latest progress in the development of useful homogeneous copper catalyst with presence of ligand and heterogeneous copper catalyst in Ullmann type C-O cross-coupling reaction. Additionally, the application of Ullmann type C-O cross coupling reaction will be discussed.
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Lin Y, Peng X, Ruan H. Diarylheptanoids from the fresh pericarps of Juglans hopeiensis. Fitoterapia 2019; 136:104165. [DOI: 10.1016/j.fitote.2019.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/28/2019] [Accepted: 05/05/2019] [Indexed: 12/13/2022]
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8
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Park S, Kim SH, Jeong JH, Shin D. Total synthesis of giffonin H by fluoride-catalyzed macrocyclization. Org Chem Front 2019. [DOI: 10.1039/c8qo01303a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
First total synthesis of giffonin H, a highly strained 15-membered macrocyclic diaryl ether, has been achieved. Key steps include Ullmann cross coupling, (Z)-selective Julia–Kocienski olefination, and fluoride-mediated macrocyclization of TMS-alkyne and aldehyde. The strategy used for macrocyclization is an unprecedented and unique synthetic approach for cyclic diarylheptanoids.
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Affiliation(s)
- Sooyoung Park
- College of Pharmacy
- Gachon University
- Incheon 21936
- South Korea
| | - Seok-Ho Kim
- College of Pharmacy and Institute of Pharmaceutical Sciences
- CHA University
- Pocheon-si
- South Korea
| | - Jin-Hyun Jeong
- College of Pharmacy
- Yonsei University
- Incheon 21983
- South Korea
| | - Dongyun Shin
- College of Pharmacy
- Gachon University
- Incheon 21936
- South Korea
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9
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Jahng Y, Park JG. Recent Studies on Cyclic 1,7-Diarylheptanoids: Their Isolation, Structures, Biological Activities, and Chemical Synthesis. Molecules 2018; 23:molecules23123107. [PMID: 30486479 PMCID: PMC6321387 DOI: 10.3390/molecules23123107] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/16/2018] [Accepted: 11/22/2018] [Indexed: 12/31/2022] Open
Abstract
Diarylheptanoids are a family of plant secondary metabolites with a 7 carbon skeleton possessing two phenyl rings at the 1- and 7-positions. They can be subdivided into acyclic and cyclic diarylheptanoids where the latter are further divided into meta,meta-bridged biphenyls ([7.0]metacyclophanes) and meta,para-bridged diphenyl ether heptanoids (oxa[7.1]metapara-cyclophanes). Since the isolation of curcumin from the rhizomes of turmeric (Curcuma longa) in 1815 which was named curcumin, a variety of diarylheptanoids have been isolated from a number of plant families such as Aceraceae, Actinidiaceae, Betulaceae, Burseraceae, Casuarinaceae, Juglandaceae, Leguminosae, Myricaceae, and Zingiberaceae. Earlier studies on these diarylheptanoids have been summarized on several occasions, of which the main themes only focus on isolation, structure elucidation, and the biological properties of linear types. Only a few have covered cyclic diarylheptanoids and their chemical synthesis has been covered lastly by Zhu et al. in 2000. The present paper has, therefore, covered recent progress in cyclic diarylheptanoids focusing on the isolation, structural and biological features, and chemical synthesis.
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Affiliation(s)
- Yurngdong Jahng
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Korea.
| | - Jae Gyu Park
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang 37668, Korea.
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10
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Gouda H, Nakayama N, Miura T, Kanemoto K, Ajito K. Computational study on formation of 15-membered azalactone by double reductive amination using molecular mechanics and density functional theory calculations. J Antibiot (Tokyo) 2018. [DOI: 10.1038/s41429-018-0030-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Colligs V, Hansen SP, Imbri D, Seo EJ, Kadioglu O, Efferth T, Opatz T. Synthesis and biological evaluation of a D-ring-contracted analogue of lamellarin D. Bioorg Med Chem 2017; 25:6137-6148. [DOI: 10.1016/j.bmc.2017.02.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 01/15/2017] [Accepted: 02/02/2017] [Indexed: 10/20/2022]
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12
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Ding Q, Wang Q, He H, Cai Q. Asymmetric Synthesis of (−)-Pterocarine and (−)-Galeon via Chiral Phase Transfer-Catalyzed Atropselective Formation of Diarylether Cyclophane Skeleton. Org Lett 2017; 19:1804-1807. [PMID: 28345937 DOI: 10.1021/acs.orglett.7b00570] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Qiang Ding
- College
of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, 510632, China
| | - Qiuyan Wang
- College
of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, 510632, China
- College
of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Huan He
- College
of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, 510632, China
- College
of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Qian Cai
- College
of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, 510632, China
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13
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Mukhtar A, Zaheer M, Saeed M, Voelter W. Synthesis of lignin model compound containing a β-O-4 linkage. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2017. [DOI: 10.1515/znb-2016-0201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Development of catalysts for efficient conversion of lignin polymer to value-added materials requires appropriately-functionalized lignin model compounds. The predominant structural feature of lignin biopolymer is an extensive network of β-O-4 linkages. Access to large amounts of a model compound containing the β-O-4 linkage is crucial for the valorisation of lignin biopolymer to aromatic raw materials. Starting from commercially available vanillin, synthesis of dilignol model compound, containing a β-O-4 linkage, is accomplished in good overall yield.
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Affiliation(s)
- Asma Mukhtar
- Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Muhammad Zaheer
- Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Muhammad Saeed
- Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Wolfgang Voelter
- Interfakultäres Institut für Biochemie, Eberhard Karls Universität Tübingen, Hoppe-Seyler Straße 4, 72076 Tübingen, Germany
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14
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Evano G, Wang J, Nitelet A. Metal-mediated C–O bond forming reactions in natural product synthesis. Org Chem Front 2017. [DOI: 10.1039/c7qo00671c] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Metal catalyzed reactions for the formation of C(sp2)–O bonds have had a dramatic impact in natural product synthesis. They have enabled the emergence of new bond disconnections, which notably resulted in remarkably efficient and short synthetic pathways. The use of these reactions for the formation of C–O bonds in natural product synthesis is overviewed in this critical review.
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Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie Organique
- Service de Chimie et PhysicoChimie Organiques
- Université libre de Bruxelles (ULB)
- 1050 Brussels
- Belgium
| | - Jianjun Wang
- Laboratoire de Chimie Organique
- Service de Chimie et PhysicoChimie Organiques
- Université libre de Bruxelles (ULB)
- 1050 Brussels
- Belgium
| | - Antoine Nitelet
- Laboratoire de Chimie Organique
- Service de Chimie et PhysicoChimie Organiques
- Université libre de Bruxelles (ULB)
- 1050 Brussels
- Belgium
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15
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Segaoula Z, Leclercq J, Verones V, Flouquet N, Lecoeur M, Ach L, Renault N, Barczyk A, Melnyk P, Berthelot P, Thuru X, Lebegue N. Synthesis and Biological Evaluation of N-[2-(4-Hydroxyphenylamino)-pyridin-3-yl]-4-methoxy-benzenesulfonamide (ABT-751) Tricyclic Analogues as Antimitotic and Antivascular Agents with Potent in Vivo Antitumor Activity. J Med Chem 2016; 59:8422-40. [PMID: 27538123 DOI: 10.1021/acs.jmedchem.6b00847] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Benzopyridothiadiazepine (2a) and benzopyridooxathiazepine (2b) were modified to produce tricyclic quinazolinone 15-18 or benzothiadiazine 26-27 derivatives. These compounds were evaluated in cytotoxicity and tubulin inhibition assays and led to potent inhibitors of tubulin polymerization. N-[2(4-Methoxyphenyl)ethyl]-1,2-dihydro-pyrimidino[2,1-b]quinazolin-6-one (16a) exhibited the best in vitro cytotoxic activity (GI50 10-66.9 nM) against the NCI 60 human tumor cell line and significant potency against tubulin assembly (IC50 0.812 μM). In mechanism studies, 16a was shown to block cell cycle in G2/M phase and to disrupt microtubule formation and displayed good antivascular properties as inhibition of cell migration, invasion, and endothelial tube formation. Compound 16a was evaluated in C57BL/6 mouse melanoma B16F10 xenograft model to validate its antitumor activity, in comparison with reference ABT-751 (1). Compound 16a displayed strong in vivo antitumor and antivascular activities at a dose of 5 mg/kg without obvious toxicity, whereas 1 needed a 10-fold higher concentration to reach similar effects.
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Affiliation(s)
- Zacharie Segaoula
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
- Oncovet Clinical Research , SIRIC ONCOLille, Parc Eurasante, Rue du Dr Alexandre Yersin, F-59120 Loos, France
| | - Julien Leclercq
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
| | - Valérie Verones
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
| | - Nathalie Flouquet
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
| | - Marie Lecoeur
- Univ. Lille, CHU Lille , EA 7365 - GRITA - Groupe de Recherche sur les formes Injectables et les Technologies Associées, F-59000 Lille, France
| | - Lionel Ach
- Univ. Lille, CHU Lille , EA 7365 - GRITA - Groupe de Recherche sur les formes Injectables et les Technologies Associées, F-59000 Lille, France
| | - Nicolas Renault
- Univ. Lille, Inserm, CHU Lille , U995 - LIRIC - Lille Inflammation Research International Center, F-59000 Lille, France
| | - Amélie Barczyk
- Univ. Lille, Inserm, CHU Lille , U995 - LIRIC - Lille Inflammation Research International Center, F-59000 Lille, France
| | - Patricia Melnyk
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
| | - Pascal Berthelot
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
| | - Xavier Thuru
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
| | - Nicolas Lebegue
- Univ. Lille, Inserm, CHU Lille , UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, F-59000 Lille, France
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16
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Synthesis and antibacterial evaluation of macrocyclic diarylheptanoid derivatives. Bioorg Med Chem Lett 2016; 26:4070-6. [PMID: 27406794 DOI: 10.1016/j.bmcl.2016.06.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 06/24/2016] [Accepted: 06/25/2016] [Indexed: 11/24/2022]
Abstract
Bacterial infections, caused by Mycobacterium tuberculosis and other problematic bacterial pathogens, continue to pose a significant threat to global public health. As such, new chemotype antibacterial agents are desperately needed to fuel and strengthen the antibacterial drug discovery and development pipeline. As part of our antibacterial research program to develop natural product-inspired new antibacterial agents, here we report synthesis, antibacterial evaluation, and structure-activity relationship studies of an extended chemical library of macrocyclic diarylheptanoids with diverse amine, amide, urea, and sulfonamide functionalities. Results of this study have produced macrocyclic geranylamine and 4-fluorophenethylamine substituted derivatives, exhibiting moderate to good activity against M. tuberculosis and selected Gram-positive bacterial pathogens.
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17
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Driowya M, Leclercq J, Verones V, Barczyk A, Lecoeur M, Renault N, Flouquet N, Ghinet A, Berthelot P, Lebegue N. Synthesis of triazoloquinazolinone based compounds as tubulin polymerization inhibitors and vascular disrupting agents. Eur J Med Chem 2016; 115:393-405. [DOI: 10.1016/j.ejmech.2016.03.056] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 02/17/2016] [Accepted: 03/18/2016] [Indexed: 02/08/2023]
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18
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Zanardi MM, Sarotti AM. GIAO C–H COSY Simulations Merged with Artificial Neural Networks Pattern Recognition Analysis. Pushing the Structural Validation a Step Forward. J Org Chem 2015; 80:9371-8. [DOI: 10.1021/acs.joc.5b01663] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- María M. Zanardi
- Instituto
de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas
y Farmacéuticas, Universidad Nacional de Rosario, Suipacha
531, Rosario 2000, Argentina
- Facultad
de Química e Ingeniería “Fray Rogelio Bacón”, Pontificia Universidad Católica Argentina, Av. Pellegrini 3314, Rosario 2000, Argentina
| | - Ariel M. Sarotti
- Instituto
de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas
y Farmacéuticas, Universidad Nacional de Rosario, Suipacha
531, Rosario 2000, Argentina
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19
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Tartaggia S, Ferrari C, Pontini M, De Lucchi O. A Practical Synthesis of Rosuvastatin and Other Statin Intermediates. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500356] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Jirásek P, Amslinger S, Heilmann J. Synthesis of natural and non-natural curcuminoids and their neuroprotective activity against glutamate-induced oxidative stress in HT-22 cells. JOURNAL OF NATURAL PRODUCTS 2014; 77:2206-2217. [PMID: 25313922 DOI: 10.1021/np500396y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A strategy for the synthesis of natural and non-natural 5-deoxy-6,7-dihydrocurcuminoids (diarylheptanoids) was developed for the preparation of 14 compounds with varying aromatic substituent patterns and a different functionality in the aliphatic seven-carbon chain. The in vitro protective activity against glutamate-induced neuronal cell death was examined in the murine hippocampal cell line HT-22 to find structural motifs responsible for neuroprotective effects in vitro. Among the tested compounds the ferulic acid-like unit, present in the structures of (E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hept-1-en-3-one (5) and (E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hept-1-en-3-one (7), appeared to be an important feature for protection against glutamate-induced neurotoxicity. Both compounds demonstrated significant neuroprotective activity in a concentration range between 1 and 25 μM without showing toxic effects in a cytotoxicity assay with HT-22 cells. Furthermore, (E)-1,7-bis(3,4-dihydroxyphenyl)hept-1-en-3-one (9), exhibiting a caffeic acid-like structural motif, displayed a neuroprotective activity at a nontoxic concentration of 25 μM. In contrast, (1E,6E)-1,7-bis(3,4-dihydroxyphenyl)hepta-1,6-diene-3,5-dione (4, di-O-demethylcurcumin) showed mainly cytotoxic effects. A corresponding single-ring analogue that contains the ferulic acid-like unit as an enone was not active.
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Affiliation(s)
- Petr Jirásek
- Institut für Pharmazie and ‡Institut für Organische Chemie, Universität Regensburg , Universitätsstraße 31, 93053 Regensburg, Germany
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21
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Iranpoor N, Firouzabadi H, Moghadam KR, Motavalli S. First reusable ligand-free palladium catalyzed C–P bond formation of aryl halides with trialkylphosphites in neat water. RSC Adv 2014. [DOI: 10.1039/c4ra07680j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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22
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Zhang FM, Tu YQ. Towards the real didemnaketal A: total syntheses of two C-21 stereoisomers of the proposed didemnaketal A. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Synthesis, cytotoxicity against human oral cancer KB cells and structure-activity relationship studies of trienone analogues of curcuminoids. Bioorg Med Chem Lett 2014; 24:2839-44. [PMID: 24857542 DOI: 10.1016/j.bmcl.2014.04.105] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 04/15/2014] [Accepted: 04/25/2014] [Indexed: 12/21/2022]
Abstract
A general method for the synthesis of substituted (1E,4E,6E)-1,7-diphenylhepta-1,4,6-trien-3-ones, based on the aldol condensations of substituted 4-phenylbut-3-en-2-ones and substituted 3-phenylacrylaldehydes, was achieved. The natural trienones 4 and 5 have been synthesized by this method, together with the trienone analogues 9-20. These analogues were evaluated for their cytotoxic activity against human oral cancer KB cell line. The structure-activity relationship study has indicated that the analogues with the 1,4,6-trien-3-one function are more potent than the curcuminoid-type function. Analogues with meta-oxygen function on the aromatic rings are more potent than those in the ortho- and para-positions. Free phenolic hydroxy group is more potent than the corresponding methyl ether analogues. Among the potent trienones, compounds 11, 18 and 20 were more active than the anticancer drug ellipticine. All compounds were also evaluated against the non-cancerous Vero cells and it was found that compounds 11, 12 and 17 were much less toxic than curcumin (1); they showed high selectivity indices of 35.46, 33.46 and 31.68, respectively. These analogues are regarded as the potent trienones for anti-oral cancer study.
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24
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Lin H, Sun D. RECENT SYNTHETIC DEVELOPMENTS AND APPLICATIONS OF THE ULLMANN REACTION. A REVIEW. ORG PREP PROCED INT 2013; 45. [PMID: 24223434 DOI: 10.1080/00304948.2013.816208] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hao Lin
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, USA
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25
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Yu X, Sun D. Macrocyclic drugs and synthetic methodologies toward macrocycles. Molecules 2013; 18:6230-68. [PMID: 23708234 PMCID: PMC4374646 DOI: 10.3390/molecules18066230] [Citation(s) in RCA: 152] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 05/15/2013] [Accepted: 05/20/2013] [Indexed: 01/02/2023] Open
Abstract
Macrocyclic scaffolds are commonly found in bioactive natural products and pharmaceutical molecules. So far, a large number of macrocyclic natural products have been isolated and synthesized. The construction of macrocycles is generally considered as a crucial and challenging step in the synthesis of macrocyclic natural products. Over the last several decades, numerous efforts have been undertaken toward the synthesis of complex naturally occurring macrocycles and great progresses have been made to advance the field of total synthesis. The commonly used synthetic methodologies toward macrocyclization include macrolactonization, macrolactamization, transition metal-catalyzed cross coupling, ring-closing metathesis, and click reaction, among others. Selected recent examples of macrocyclic synthesis of natural products and druglike macrocycles with significant biological relevance are highlighted in each class. The primary goal of this review is to summarize currently used macrocyclic drugs, highlight the therapeutic potential of this underexplored drug class and outline the general synthetic methodologies for the synthesis of macrocycles.
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Affiliation(s)
| | - Dianqing Sun
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai’i at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA; E-Mail:
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26
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Shen L, Maddox MM, Adhikari S, Bruhn DF, Kumar M, Lee RE, Hurdle JG, Lee RE, Sun D. Syntheses and evaluation of macrocyclic engelhardione analogs as antitubercular and antibacterial agents. J Antibiot (Tokyo) 2013; 66:319-25. [PMID: 23549356 DOI: 10.1038/ja.2013.21] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The natural product engelhardione is an underexplored chemotype for developing novel treatments for bacterial infections; we therefore explored this natural product scaffold for chemical diversification and structure-activity relationship studies. Macrocyclic engelhardione and structural regioisomers were synthesized using a series of aldol condensations and selective hydrogenations to generate the 1,7-diarylheptan-3-one derivatives, followed by microwave-assisted intramolecular Ullmann coupling to afford a series of macrocyclic diaryl ether analogs. An extended macrocyclic chemical library was then produced by oxime formation, reductive amination and O-alkylation. Antibacterial evaluation revealed that the reductive amination derivatives 7b and 7d showed moderate activities (minimum inhibitory concentrations: 12.5-25 μg ml(-1)) against Mycobacterium tuberculosis and Gram-positive pathogens, as well as anti-Gram-negative activity against an efflux impaired Escherichia coli strain. These results provide validated leads for further optimization and development.
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Affiliation(s)
- Li Shen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, USA
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27
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Raut GN, Chakraborty K, Verma P, Gokhale RS, Srinivasa Reddy D. Synthesis of isomeric corniculatolides. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Wu HC, Cheng MJ, Peng CF, Yang SC, Chang HS, Lin CH, Wang CJ, Chen IS. Secondary metabolites from the stems of Engelhardia roxburghiana and their antitubercular activities. PHYTOCHEMISTRY 2012; 82:118-127. [PMID: 22818359 DOI: 10.1016/j.phytochem.2012.06.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 04/29/2012] [Accepted: 06/18/2012] [Indexed: 06/01/2023]
Abstract
Bioassay-guided fractionation of stems of Engelhardia roxburghiana led to isolation of: four diarylheptanoids, engelheptanoxides A-D (1-4); two cyclic diarylheptanoids, engelhardiols A (5) and B (6); one naphthoquinone dimer, engelharquinonol (7); and one 1-tetralone, (4S)-4,6-dihydroxy-1-tetralone (8), along with 24 known compounds (9-32). The structures of 1-8 were by spectroscopic analysis. Compounds 5, 6, 13, 22, and 23 showed antitubercular activity against Mycobacterium tuberculosis H(37)Rv with MIC values of 72.7, 62.1, 9.1, 15.3, and 70.1μM, respectively.
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Affiliation(s)
- Ho-Chen Wu
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC
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29
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Shen L, Simmons CJ, Sun D. Microwave-assisted synthesis of macrocycles via intramolecular and/or bimolecular Ullmann coupling. Tetrahedron Lett 2012; 53:4173-4178. [PMID: 23049146 PMCID: PMC3462461 DOI: 10.1016/j.tetlet.2012.05.142] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Microwave-assisted synthesis of macrocyclic diaryl ethers via intramolecular and/or bimolecular Ullmann coupling is described. Using the optimized conditions, a panel of macrocycles, with different substitution patterns, ring sizes, and linkers, has been successfully synthesized using microwave irradiation. To the best of our knowledge, this work represents the first examples of the microwave-assisted synthesis of macrocyclic diaryl ethers via intramolecular and/or bimolecular Ullmann coupling.
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Affiliation(s)
- Li Shen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Hawai’i at Hilo, Hilo, HI 96720, USA
| | - Charles J. Simmons
- Department of Chemistry, University of Hawai’i at Hilo, Hilo, HI 96720, USA
| | - Dianqing Sun
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Hawai’i at Hilo, Hilo, HI 96720, USA
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30
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Bryant VC, Kishore Kumar GD, Nyong AM, Natarajan A. Synthesis and evaluation of macrocyclic diarylether heptanoid natural products and their analogs. Bioorg Med Chem Lett 2011; 22:245-8. [PMID: 22137846 DOI: 10.1016/j.bmcl.2011.11.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 11/03/2011] [Accepted: 11/07/2011] [Indexed: 11/28/2022]
Abstract
The macrocyclic diarylether heptanoid (MDEH) natural products have been used in folk medicine for centuries. MDEHs are reported to exert anti-tumor properties by inhibiting the activation of NF-κB. Here we report the synthesis of a small MDEH library (first reported synthesis of racemic platycarynol) using a Grubbs cross metathesis/Ullmann cyclization strategy. Evaluation of the library led to the identification of MDEH 9b which sensitizes pancreatic cancer cells to gemcitabine mediated growth inhibition and apoptosis.
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Affiliation(s)
- Vashti C Bryant
- Eppley Institute for Cancer Research, University of Nebraska Medical Center, Omaha, NE 68198, USA
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