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Mariotto E, Canton M, Marchioro C, Brancale A, Hamel E, Varani K, Vincenzi F, De Ventura T, Padroni C, Viola G, Romagnoli R. Synthesis and Biological Evaluation of Novel 2-Aroyl Benzofuran-Based Hydroxamic Acids as Antimicrotubule Agents. Int J Mol Sci 2024; 25:7519. [PMID: 39062759 PMCID: PMC11277476 DOI: 10.3390/ijms25147519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/02/2024] [Accepted: 07/06/2024] [Indexed: 07/28/2024] Open
Abstract
Because of synergism between tubulin and HDAC inhibitors, we used the pharmacophore fusion strategy to generate potential tubulin-HDAC dual inhibitors. Drug design was based on the introduction of a N-hydroxyacrylamide or a N-hydroxypropiolamide at the 5-position of the 2-aroylbenzo[b]furan skeleton, to produce compounds 6a-i and 11a-h, respectively. Among the synthesized compounds, derivatives 6a, 6c, 6e, 6g, 11a, and 11c showed excellent antiproliferative activity, with IC50 values at single- or double-digit nanomolar levels, against the A549, HT-29, and MCF-7 cells resistant towards the control compound combretastatin A-4 (CA-4). Compounds 11a and 6g were also 10-fold more active than CA-4 against the Hela cell line. When comparing the inhibition of tubulin polymerization versus the HDAC6 inhibitory activity, we found that 6a-g, 6i, 11a, 11c, and 11e, although very potent as inhibitors of tubulin assembly, did not have significant inhibitory activity against HDAC6.
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Affiliation(s)
- Elena Mariotto
- Department of Woman’s and Child’s Health, Hemato-Oncology Lab, University of Padova, 35128 Padova, Italy; (E.M.); (M.C.); (C.M.); (G.V.)
- Laboratory of Experimental Pharmacology, Istituto di Ricerca Pediatrica (IRP), Fondazione Città della Speranza, 35128 Padova, Italy
| | - Martina Canton
- Department of Woman’s and Child’s Health, Hemato-Oncology Lab, University of Padova, 35128 Padova, Italy; (E.M.); (M.C.); (C.M.); (G.V.)
- Laboratory of Experimental Pharmacology, Istituto di Ricerca Pediatrica (IRP), Fondazione Città della Speranza, 35128 Padova, Italy
| | - Chiara Marchioro
- Department of Woman’s and Child’s Health, Hemato-Oncology Lab, University of Padova, 35128 Padova, Italy; (E.M.); (M.C.); (C.M.); (G.V.)
- Laboratory of Experimental Pharmacology, Istituto di Ricerca Pediatrica (IRP), Fondazione Città della Speranza, 35128 Padova, Italy
| | - Andrea Brancale
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, 166 28 Prague, Czech Republic;
| | - Ernest Hamel
- Molecular Pharmacology Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, USA;
| | - Katia Varani
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (K.V.); (F.V.)
| | - Fabrizio Vincenzi
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (K.V.); (F.V.)
| | - Tiziano De Ventura
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Chiara Padroni
- Medicinal Chemistry Department, Integrated Drug Discovery, Aptuit, an Evotec Company, 37135 Verona, Italy;
| | - Giampietro Viola
- Department of Woman’s and Child’s Health, Hemato-Oncology Lab, University of Padova, 35128 Padova, Italy; (E.M.); (M.C.); (C.M.); (G.V.)
- Laboratory of Experimental Pharmacology, Istituto di Ricerca Pediatrica (IRP), Fondazione Città della Speranza, 35128 Padova, Italy
| | - Romeo Romagnoli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44121 Ferrara, Italy;
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2
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Nagasawa S, Itagaki Y, Sasano Y, Iwabuchi Y. Controlled Aerobic Oxidative Dimerization of Hydroxystilbenoids by Chromium Catalysis. Org Lett 2024; 26:4178-4182. [PMID: 38728298 DOI: 10.1021/acs.orglett.4c00839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
Aerobic oxidative dimerization of hydroxystilbenoids is described. A Cr-salen complex catalyzed the dimerization of hydroxystilbenoids in 1,1,1,3,3,3-hexafluoroisopropanol to form compounds comprising a natural product-like scaffold (quadrangularin) or its precursor depending on the aromatic substituents. The addition of a catalytic amount of scandium triflate [Sc(OTf)3] to the reaction system altered the reaction outcome to give a different natural product-like compound, a pallidol-type dimer.
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Affiliation(s)
- Shota Nagasawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Yudai Itagaki
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
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Roldan BJ, Hammerstad TA, Galliher MS, Keylor MH, Pratt DA, Stephenson CRJ. Leveraging the Persistent Radical Effect in the Synthesis of trans-2,3-Diaryl Dihydrobenzofurans. Angew Chem Int Ed Engl 2023; 62:e202305801. [PMID: 37390358 PMCID: PMC10528744 DOI: 10.1002/anie.202305801] [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: 04/25/2023] [Revised: 06/23/2023] [Accepted: 06/29/2023] [Indexed: 07/02/2023]
Abstract
A simple method for accessing trans-2,3-diaryl dihydrobenzofurans is reported. This approach leverages the equilibrium between quinone methide dimers and their persistent radicals. This equilibrium is disrupted by phenols that yield comparatively transient phenoxyl radicals, leading to cross-coupling between the persistent and transient radicals. The resultant quinone methides with pendant phenols rapidly cyclize to form dihydrobenzofurans (DHBs). This putative biomimetic access to dihydrobenzofurans provides superb functional group tolerance and a unified approach for the synthesis of resveratrol-based natural products.
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Affiliation(s)
- Bec J Roldan
- Department of Chemistry, University of Michigan, Ann Arbor, 930 N University Ave, Ann Arbor, MI 48109, USA
| | - Travis A Hammerstad
- Department of Chemistry, University of Michigan, Ann Arbor, 930 N University Ave, Ann Arbor, MI 48109, USA
| | - Matthew S Galliher
- Department of Chemistry, University of Michigan, Ann Arbor, 930 N University Ave, Ann Arbor, MI 48109, USA
| | - Mitchell H Keylor
- Department of Chemistry, University of Michigan, Ann Arbor, 930 N University Ave, Ann Arbor, MI 48109, USA
| | - Derek A Pratt
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Corey R J Stephenson
- Department of Chemistry, University of Michigan, Ann Arbor, 930 N University Ave, Ann Arbor, MI 48109, USA
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4
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Insightful Improvement in the Design of Potent Uropathogenic E. coli FimH Antagonists. Pharmaceutics 2023; 15:pharmaceutics15020527. [PMID: 36839848 PMCID: PMC9962304 DOI: 10.3390/pharmaceutics15020527] [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] [Received: 01/10/2023] [Revised: 01/25/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
Selective antiadhesion antagonists of Uropathogenic Escherichia coli (UPEC) type-1 Fimbrial adhesin (FimH) are attractive alternatives for antibiotic therapies and prophylaxes against acute or recurrent urinary tract infections (UTIs) caused by UPECs. A rational small library of FimH antagonists based on previously described C-linked allyl α-D-mannopyranoside was synthesized using Heck cross-coupling reaction using a series of iodoaryl derivatives. This work reports two new members of FimH antagonist amongst the above family with sub nanomolar affinity. The resulting hydrophobic aglycones, including constrained alkene and aryl groups, were designed to provide additional favorable binding interactions with the so-called FimH "tyrosine gate". The newly synthesized C-linked glycomimetic antagonists, having a hydrolytically stable anomeric linkage, exhibited improved binding when compared to previously published analogs, as demonstrated by affinity measurement through interactions by FimH lectin. The crystal structure of FimH co-crystallized with one of the nanomolar antagonists revealed the binding mode of this inhibitor into the active site of the tyrosine gate. In addition, selected mannopyranoside constructs neither affected bacterial growth or cell viability nor interfered with antibiotic activity. C-linked mannoside antagonists were effective in decreasing bacterial adhesion to human bladder epithelial cells (HTB-9). Therefore, these molecules constituted additional therapeutic candidates' worth further development in the search for potent anti-adhesive drugs against infections caused by UPEC.
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Agbadua OG, Kúsz N, Berkecz R, Gáti T, Tóth G, Hunyadi A. Oxidized Resveratrol Metabolites as Potent Antioxidants and Xanthine Oxidase Inhibitors. Antioxidants (Basel) 2022; 11:antiox11091832. [PMID: 36139906 PMCID: PMC9495788 DOI: 10.3390/antiox11091832] [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: 08/03/2022] [Revised: 09/07/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Resveratrol is a well-known natural polyphenol with a plethora of pharmacological activities. As a potent antioxidant, resveratrol is highly oxidizable and readily reacts with reactive oxygen species (ROS). Such a reaction not only leads to a decrease in ROS levels in a biological environment but may also generate a wide range of metabolites with altered bioactivities. Inspired by this notion, in the current study, our aim was to take a diversity-oriented chemical approach to study the chemical space of oxidized resveratrol metabolites. Chemical oxidation of resveratrol and a bioactivity-guided isolation strategy using xanthine oxidase (XO) and radical scavenging activities led to the isolation of a diverse group of compounds, including a chlorine-substituted compound (2), two iodine-substituted compounds (3 and 4), two viniferins (5 and 6), an ethoxy-substituted compound (7), and two ethoxy-substitute,0d dimers (8 and 9). Compounds 4, 7, 8, and 9 are reported here for the first time. All compounds without ethoxy substitution exerted stronger XO inhibition than their parent compound, resveratrol. By enzyme kinetic and in silico docking studies, compounds 2 and 4 were identified as potent competitive inhibitors of the enzyme, while compound 3 and the viniferins acted as mixed-type inhibitors. Further, compounds 2 and 9 had better DPPH scavenging activity and oxygen radical absorbing capacity than resveratrol. Our results suggest that the antioxidant activity of resveratrol is modulated by the effect of a cascade of chemically stable oxidized metabolites, several of which have significantly altered target specificity as compared to their parent compound.
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Affiliation(s)
| | - Norbert Kúsz
- Institute of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary
| | - Róbert Berkecz
- Institute of Pharmaceutical Analysis, University of Szeged, H-6720 Szeged, Hungary
| | - Tamás Gáti
- Servier Research Institute of Medicinal Chemistry (SRIMC), H-1031 Budapest, Hungary
| | - Gábor Tóth
- NMR Group, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Attila Hunyadi
- Institute of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Hungary
- Correspondence: ; Tel.: +36-62545557
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6
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Chemistry, Biosynthesis and Pharmacology of Viniferin: Potential Resveratrol-Derived Molecules for New Drug Discovery, Development and Therapy. Molecules 2022; 27:molecules27165072. [PMID: 36014304 PMCID: PMC9414909 DOI: 10.3390/molecules27165072] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/20/2022] [Accepted: 08/03/2022] [Indexed: 11/20/2022] Open
Abstract
Viniferin is a resveratrol derivative. Resveratrol is the most prominent stilbenoid synthesized by plants as a defense mechanism in response to microbial attack, toxins, infections or UV radiation. Different forms of viniferin exist, including alpha-viniferin (α-viniferin), beta-viniferin (β-viniferin), delta-viniferin (δ-viniferin), epsilon-viniferin (ε-viniferin), gamma-viniferin (γ-viniferin), R-viniferin (vitisin A), and R2-viniferin (vitisin B). All of these forms exhibit a range of important biological activities and, therefore, have several possible applications in clinical research and future drug development. In this review, we present a comprehensive literature search on the chemistry and biosynthesis of and the diverse studies conducted on viniferin, especially with regards to its anti-inflammatory, antipsoriasis, antidiabetic, antiplasmodic, anticancer, anti-angiogenic, antioxidant, anti-melanogenic, neurodegenerative effects, antiviral, antimicrobial, antifungal, antidiarrhea, anti-obesity and anthelminthic activities. In addition to highlighting its important chemical and biological activities, coherent and environmentally acceptable methods for establishing vinferin on a large scale are highlighted to allow the development of further research that can help to exploit its properties and develop new phyto-pharmaceuticals. Overall, viniferin and its derivatives have the potential to be the most effective nutritional supplement and supplementary medication, especially as a therapeutic approach. More researchers will be aware of viniferin as a pharmaceutical drug as a consequence of this review, and they will be encouraged to investigate viniferin and its derivatives as pharmaceutical drugs to prevent future health catastrophes caused by a variety of serious illnesses.
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7
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Zhu Q, Teng B, Chen Y, Su F, Li Y, Yang Q, Yao C. A concise and efficient total synthetic route of active stilbene dimer (±)- ε-viniferin. RSC Adv 2022; 12:11100-11103. [PMID: 35425053 PMCID: PMC8992221 DOI: 10.1039/d2ra01385a] [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: 03/02/2022] [Accepted: 03/21/2022] [Indexed: 11/21/2022] Open
Abstract
A concise and efficient procedure for the total synthesis of natural stilbene dimer (±)-ε-viniferin was accomplished with high overall yield. Demethylation of the key intermediate methyl 3-arylbenzofuran-4-carboxylate was achieved successfully through bromination followed by BBr3-or BCl3/TBAI-mediated ether cleavage reaction. Pd/C and bromobenzene-catalyzed MOM ether cleavage was successfully carried out to aquire (±)-ε-viniferin.
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Affiliation(s)
- Qibin Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 P. R. China
| | - Binhao Teng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 P. R. China
| | - Ying Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 P. R. China
| | - Fubao Su
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 P. R. China
| | - Yanqiu Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 P. R. China
| | - Qingyun Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 P. R. China
| | - Chunsuo Yao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 P. R. China
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8
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Dapkekar AB, Sreenivasulu C, Kishore DR, Satyanarayana G. Recent Advances Towards the Synthesis of Dihydrobenzofurans and Dihydroisobenzofurans. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | | | | | - Gedu Satyanarayana
- Indian Institute of Technology Hyderabad Chemistry KandiSangareddy District 502 285 Hyderabad INDIA
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9
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Practical and efficient total synthetic route of the resveratrol dimer (±)-ε-viniferin. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Mattio LM, Pinna C, Catinella G, Musso L, Pedersen KJ, Krogfelt KA, Dallavalle S, Pinto A. Synthesis and Antimicrobial Activity of δ-Viniferin Analogues and Isosteres. Molecules 2021; 26:7594. [PMID: 34946674 PMCID: PMC8703454 DOI: 10.3390/molecules26247594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/08/2021] [Accepted: 12/12/2021] [Indexed: 12/17/2022] Open
Abstract
The natural stilbenoid dehydro-δ-viniferin, containing a benzofuran core, has been recently identified as a promising antimicrobial agent. To define the structural elements relevant to its activity, we modified the styryl moiety, appended at C5 of the benzofuran ring. In this paper, we report the construction of stilbenoid-derived 2,3-diaryl-5-substituted benzofurans, which allowed us to prepare a focused collection of dehydro-δ-viniferin analogues. The antimicrobial activity of the synthesized compounds was evaluated against S. aureus ATCC29213. The simplified analogue 5,5'-(2-(4-hydroxyphenyl)benzofuran-3,5-diyl)bis(benzene-1,3-diol), obtained in three steps from 4-bromo-2-iodophenol (63% overall yield), emerged as a promising candidate for further investigation (MIC = 4 µg/mL).
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Affiliation(s)
- Luce Micaela Mattio
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Cecilia Pinna
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Giorgia Catinella
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Loana Musso
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Kasandra Juliet Pedersen
- Institute of Molecular and Medical Biology, Roskilde University, 4000 Roskilde, Denmark; (K.J.P.); (K.A.K.)
| | - Karen Angeliki Krogfelt
- Institute of Molecular and Medical Biology, Roskilde University, 4000 Roskilde, Denmark; (K.J.P.); (K.A.K.)
| | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
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D'Orsi R, Morrongiello F, Laurita T, Funicello M, Lupattelli P, Chiummiento L. Regio‐ and Diastereo‐Selective Biomimetic Synthesis of (±)‐
ϵ
‐Viniferin by NIS and Resveratrol. ChemistrySelect 2021. [DOI: 10.1002/slct.202101678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Rosarita D'Orsi
- Department of Science University of Basilicata Via dell'ateneo lucano, 10 85100 Potenza ITALY
| | - Francesca Morrongiello
- Department of Science University of Basilicata Via dell'ateneo lucano, 10 85100 Potenza ITALY
| | - Teresa Laurita
- Department of Science University of Basilicata Via dell'ateneo lucano, 10 85100 Potenza ITALY
| | - Maria Funicello
- Department of Science University of Basilicata Via dell'ateneo lucano, 10 85100 Potenza ITALY
| | - Paolo Lupattelli
- Department of Science University of Basilicata Via dell'ateneo lucano, 10 85100 Potenza ITALY
| | - Lucia Chiummiento
- Department of Science University of Basilicata Via dell'ateneo lucano, 10 85100 Potenza ITALY
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Fan JH, Hu YJ, Li LX, Wang JJ, Li SP, Zhao J, Li CC. Recent advances in total syntheses of natural products containing the benzocycloheptane motif. Nat Prod Rep 2021; 38:1821-1851. [PMID: 33650613 DOI: 10.1039/d1np00003a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering: 2010 to 2020Benzocycloheptane is a fundamental and unique structural motif found in pharmaceuticals and natural products. The total syntheses of natural products bearing the benzocycloheptane subunit are challenging and there are only a few efficient approaches to access benzocycloheptane. Thus, new methods and innovative strategies for preparing such natural products need to be developed. In this review, recent progress in the total syntheses of natural products bearing the benzocycloheptane motif is presented, and key transformations for the construction of benzocycloheptane are highlighted. This review provides a useful guide for those engaged in the syntheses of natural products containing the benzocycloheptane motif.
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Affiliation(s)
- Jian-Hong Fan
- Institute of Chinese Medical Sciences, University of Macau, Macau, China. and Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Ya-Jian Hu
- Institute of Chinese Medical Sciences, University of Macau, Macau, China. and Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Li-Xuan Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Jing-Jing Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Shao-Ping Li
- Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Jing Zhao
- Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
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13
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Chiummiento L, D’Orsi R, Caivano I, Funicello M, Lupattelli P. Structural Insights into the TES/TFA Reduction of Differently Substituted Benzofurans: Dihydrobenzofurans or Bibenzyls? Synlett 2021. [DOI: 10.1055/s-0040-1705949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractVarious polysubstituted benzofurans were reduced by using triethylsilane in trifluoracetic acid. 2,3-Dihydrobenzofurans or bibenzyl compounds were obtained in high yields, depending on the nature of the substituents at C2 and on the benzene ring of the core structure. A p-anisole substituent at C2 of benzofurans always led to the corresponding bibenzyls.
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14
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Jia R, Zhang J, Bertagnin C, Cherukupalli S, Ai W, Ding X, Li Z, Zhang J, Ju H, Ma X, Loregian A, Huang B, Zhan P, Liu X. Discovery of highly potent and selective influenza virus neuraminidase inhibitors targeting 150-cavity. Eur J Med Chem 2020; 212:113097. [PMID: 33385836 DOI: 10.1016/j.ejmech.2020.113097] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 10/22/2022]
Abstract
Encouraged by our earlier discovery of N1-selective inhibitors, the 150-cavity of influenza virus neuraminidases (NAs) could be further exploited to yield more potent oseltamivir derivatives. Herein, we report the design, synthesis and biological evaluation of a series of novel oseltamivir derivatives via the structural modifications at C5-NH2 of oseltamivir targeting 150-cavity. Among them, compound 5c bearing 4-(3-methoxybenzyloxy)benzyl group exhibited the most potent activity, which was lower or modestly improved activities than oseltamivir carboxylate (OSC) against N1 (H1N1), N1 (H5N1) and N1 (H5N1-H274Y). Specifically, there was 30-fold loss of activity against the wild-type strain H1N1. However, 5c displayed 4.85-fold more potent activity than OSC against H5N1-H274Y NA. Also, 5c demonstrated low cytotoxicity in vitro and no acute toxicity in mice. Molecular docking studies provided insights into the high potency of 5c against N1 and N1-H274Y mutant NAs. Besides, the in silico prediction of physicochemical properties and CYP enzymatic inhibitory ability of representative compounds were conducted to evaluate their drug-like properties.
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Affiliation(s)
- Ruifang Jia
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China
| | - Jian Zhang
- Institute of Medical Sciences, The Second Hospital, Cheeloo College of Medicine, Shandong University, 250033, PR China
| | - Chiara Bertagnin
- Department of Molecular Medicine, University of Padova, via Gabelli 63, 35121, Padova, Italy
| | - Srinivasulu Cherukupalli
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China
| | - Wei Ai
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China
| | - Xiao Ding
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China
| | - Zhuo Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China
| | - Jiwei Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China
| | - Han Ju
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China
| | - Xiuli Ma
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, 1 Jiaoxiao Road, Jinan, Shandong, 250023, PR China
| | - Arianna Loregian
- Department of Molecular Medicine, University of Padova, via Gabelli 63, 35121, Padova, Italy
| | - Bing Huang
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, 1 Jiaoxiao Road, Jinan, Shandong, 250023, PR China.
| | - Peng Zhan
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China; China-Belgium Collaborative Research Center for Innovative Antiviral Drugs of Shandong Province, 44 West Culture Road, 250012, Jinan, Shandong, PR China.
| | - Xinyong Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, 250012, Jinan, Shandong, PR China; China-Belgium Collaborative Research Center for Innovative Antiviral Drugs of Shandong Province, 44 West Culture Road, 250012, Jinan, Shandong, PR China.
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15
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Mattio LM, Catinella G, Pinto A, Dallavalle S. Natural and nature-inspired stilbenoids as antiviral agents. Eur J Med Chem 2020; 202:112541. [PMID: 32652408 PMCID: PMC7335248 DOI: 10.1016/j.ejmech.2020.112541] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/24/2020] [Accepted: 06/04/2020] [Indexed: 12/12/2022]
Abstract
Viruses continue to be a major threat to human health. In the last century, pandemics occurred and resulted in significant mortality and morbidity. Natural products have been largely screened as source of inspiration for new antiviral agents. Within the huge class of plant secondary metabolites, resveratrol-derived stilbenoids present a wide structural diversity and mediate a great number of biological responses relevant for human health. However, whilst the antiviral activity of resveratrol has been extensively studied, little is known about the efficacy of its monomeric and oligomeric derivatives. The purpose of this review is to provide an overview of the achievements in this field, with particular emphasis on the source, chemical structures and the mechanism of action of resveratrol-derived stilbenoids against the most challenging viruses. The collected results highlight the therapeutic versatility of stilbene-containing compounds and provide a prospective insight into their potential development as antiviral agents.
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Affiliation(s)
- Luce M Mattio
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Via Celoria 2, 20133, Milano, Italy
| | - Giorgia Catinella
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Via Celoria 2, 20133, Milano, Italy
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Via Celoria 2, 20133, Milano, Italy
| | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Via Celoria 2, 20133, Milano, Italy.
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16
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Romero KJ, Keylor MH, Griesser M, Zhu X, Strobel EJ, Pratt DA, Stephenson CRJ. Synthesis of Vitisins A and D Enabled by a Persistent Radical Equilibrium. J Am Chem Soc 2020; 142:6499-6504. [PMID: 32156107 DOI: 10.1021/jacs.0c01714] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first total synthesis of the resveratrol tetramers vitisin A and vitisin D is reported. Electrochemical generation and selective dimerization of persistent radicals is followed by thermal isomerization of the symmetric C8b-C8c dimer to the C3c-C8b isomer, providing rapid entry into the vitisin core. Computational results suggest that this synthetic approach mimics Nature's strategy for constructing these complex molecules. Sequential acid-mediated rearrangements consistent with the proposed biogenesis of these compounds afford vitisin A and vitisin D. The rapid synthesis of these complex molecules will enable further study of their pharmacological potential.
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Affiliation(s)
- Kevin J Romero
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Mitchell H Keylor
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Markus Griesser
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Xu Zhu
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Ethan J Strobel
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Derek A Pratt
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Corey R J Stephenson
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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17
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Catinella G, Mattio LM, Musso L, Arioli S, Mora D, Beretta GL, Zaffaroni N, Pinto A, Dallavalle S. Structural Requirements of Benzofuran Derivatives Dehydro- δ- and Dehydro- ε-Viniferin for Antimicrobial Activity Against the Foodborne Pathogen Listeria monocytogenes. Int J Mol Sci 2020; 21:E2168. [PMID: 32245220 PMCID: PMC7139904 DOI: 10.3390/ijms21062168] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 02/07/2023] Open
Abstract
In a recent study, we investigated the antimicrobial activity of a collection of resveratrol-derived monomers and dimers against a series of foodborne pathogens. Out of the tested molecules, dehydro-δ-viniferin and dehydro-ε-viniferin emerged as the most promising derivatives. To define the structural elements essential to the antimicrobial activity against the foodborne pathogen L. monocytogenes Scott A as a model Gram-positive microorganism, the synthesis of a series of simplified benzofuran-containing derivatives was carried out. The systematic removal of the aromatic moieties of the parent molecules allowed a deeper insight into the most relevant structural features affecting the activity. While the overall structure of compound 1 could not be altered without a substantial loss of antimicrobial activity, the structural simplification of compound 2 (minimal inhibitory concentration (MIC) 16 µg/mL, minimal bactericidal concentration (MBC) >512 µg/mL) led to the analogue 7 with increased activity (MIC 8 µg/mL, MBC 64 µg/mL).
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Affiliation(s)
- Giorgia Catinella
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (G.C.); (L.M.M.); (L.M.); (S.A.); (D.M.); (S.D.)
| | - Luce M. Mattio
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (G.C.); (L.M.M.); (L.M.); (S.A.); (D.M.); (S.D.)
| | - Loana Musso
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (G.C.); (L.M.M.); (L.M.); (S.A.); (D.M.); (S.D.)
| | - Stefania Arioli
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (G.C.); (L.M.M.); (L.M.); (S.A.); (D.M.); (S.D.)
| | - Diego Mora
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (G.C.); (L.M.M.); (L.M.); (S.A.); (D.M.); (S.D.)
| | - Giovanni Luca Beretta
- Molecular Pharmacology Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale Tumori, Via Amadeo 42, 20133 Milan, Italy; (G.L.B.); (N.Z.)
| | - Nadia Zaffaroni
- Molecular Pharmacology Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale Tumori, Via Amadeo 42, 20133 Milan, Italy; (G.L.B.); (N.Z.)
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (G.C.); (L.M.M.); (L.M.); (S.A.); (D.M.); (S.D.)
| | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (G.C.); (L.M.M.); (L.M.); (S.A.); (D.M.); (S.D.)
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18
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Exploring resveratrol dimers as virulence blocking agents - Attenuation of type III secretion in Yersinia pseudotuberculosis and Pseudomonas aeruginosa. Sci Rep 2020; 10:2103. [PMID: 32034212 PMCID: PMC7005745 DOI: 10.1038/s41598-020-58872-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 01/20/2020] [Indexed: 12/25/2022] Open
Abstract
Bacterial infections continue to threaten humankind and the rapid spread of antibiotic resistant bacteria is alarming. Current antibiotics target essential bacterial processes and thereby apply a strong selective pressure on pathogenic and non-pathogenic bacteria alike. One alternative strategy is to block bacterial virulence systems that are essential for the ability to cause disease but not for general bacterial viability. We have previously show that the plant natural product (-)-hopeaphenol blocks the type III secretion system (T3SS) in the Gram-negative pathogens Yersinia pseudotuberculosis and Pseudomonas aeruginosa. (-)-Hopeaphenol is a resveratrol tetramer and in the present study we explore various resveratrol dimers, including partial structures of (-)-hopeaphenol, as T3SS inhibitors. To allow rapid and efficient assessment of T3SS inhibition in P. aeruginosa, we developed a new screening method by using a green fluorescent protein reporter under the control of the ExoS promoter. Using a panel of assays we showed that compounds with a benzofuran core structure i.e. viniferifuran, dehydroampelopsin B, anigopreissin A, dehydro-δ-viniferin and resveratrol-piceatannol hybrid displayed significant to moderate activities towards the T3SS in Y. pseudotuberculosis and P. aeruginosa.
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19
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Zwingelstein M, Draye M, Besombes JL, Piot C, Chatel G. Viticultural wood waste as a source of polyphenols of interest: Opportunities and perspectives through conventional and emerging extraction methods. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 102:782-794. [PMID: 31812093 DOI: 10.1016/j.wasman.2019.11.034] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/08/2019] [Accepted: 11/21/2019] [Indexed: 05/28/2023]
Abstract
Viticultural waste has been widely demonstrated to contain high-added value compounds named the stilbenes. Among them, trans-resveratrol (Rsv) and trans-ε-viniferin (Vf) are the most abundant in particular in grape canes. Various emerging methods such as ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE) or pressurized solvent extraction (PSE) have been studied to recover Rsv and Vf from grape canes in order to enhance their extraction. This paper gives a critical overview of the techniques used to this end, integrating conventional and non-conventional methods investigated in the literature as well as those used in industrial processes. It finally highlights that the unconventional technics are usually less time-consuming than conventional extraction ones but further investigations for the discussed compounds and biomass are needed to optimize and understand the influence of the individual parameters of each extraction process.
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Affiliation(s)
- Marion Zwingelstein
- Univ. Savoie Mont Blanc, LCME, F-73000 Chambéry, France; Agence de l'Environnement et de Maîtrise de l'Energie (ADEME), F-49004 Angers, France
| | | | | | | | - Gregory Chatel
- Univ. Savoie Mont Blanc, LCME, F-73000 Chambéry, France.
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20
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Yadav MK, Mailar K, Nagarajappa Masagalli J, Chae SW, Song JJ, Choi WJ. Ruthenium Chloride-Induced Oxidative Cyclization of Trans-Resveratrol to (±)-ε-Viniferin and Antimicrobial and Antibiofilm Activity Against Streptococcus pneumoniae. Front Pharmacol 2019; 10:890. [PMID: 31474855 PMCID: PMC6702469 DOI: 10.3389/fphar.2019.00890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 07/15/2019] [Indexed: 01/08/2023] Open
Abstract
Polyphenol ε-viniferin (2) is a protective phytochemical found in several plant families. Here, we report a simple and effective method for the synthesis of (±)-ε-viniferin (2) as major product and (±)-(E)-ω-viniferin (3) as a minor product. Synthesized viniferin compounds and standard viniferin were analyzed for antibacterial and antibiofilm activity against Gram-positive bacteria Streptococcus pneumoniae. The minimum inhibitory concentrations (MICs) of (±)-ε-viniferin (2) and standard viniferin were 20 µm. However, the MICs of (±)-(E)-ω-viniferin (3) and compound 8 were 40 µm. Although viniferin significantly (p < 0.05) reduced pre-established in vitro biofilms and killed bacteria within the biofilm, it was unable to prevent biofilm formation at sub-MIC concentrations. The time kill experiment revealed that viniferin killed bacteria and reduced 2.8 log10 bacteria at 2 × MIC concentration after 24 h. Scanning electron microscope (SEM) analysis and live/dead biofilm staining of pre-established biofilms revealed that viniferin treatment disrupts membrane integrity of biofilm bacteria. Crystal violet absorption, total protein, and DNA and RNA release revealed that viniferin alters bacterial cell permeability, eventually killing bacteria.
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Affiliation(s)
- Mukesh Kumar Yadav
- Department of Otorhinolaryngology–Head and Neck Surgery, Korea University Guro Hospital, Seoul, South Korea
- Institute for Medical Device Clinical Trials, Korea University College of Medicine, Seoul, South Korea
| | - Karabasappa Mailar
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University, Seoul, South Korea
| | | | | | - Jae-Jun Song
- Department of Otorhinolaryngology–Head and Neck Surgery, Korea University Guro Hospital, Seoul, South Korea
| | - Won Jun Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University, Seoul, South Korea
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21
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Laurita T, Chiummiento L, Funicello M, D'Orsi R, Sallemi D, Tofani D, Lupattelli P. Regio- and Diastereoselective Organo-Zinc-Promoted Arylation oftrans-2,3-Diaryloxiranes by Arylboronic Acids: Stereoselective Access totrans-2,3-Diphenyl-2,3-dihydrobenzofuran. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900588] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Teresa Laurita
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Lucia Chiummiento
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Maria Funicello
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Rosarita D'Orsi
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Deborah Sallemi
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
| | - Daniela Tofani
- Department of Sciences; University of Roma3; via della vasca navale 79 00146 Roma Italy
| | - Paolo Lupattelli
- Department of Sciences; University of Basilicata; via dell'ateneo lucano 10 85100 Potenza Italy
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22
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Kumar A, Saleeb M, Werz D, Elofsson M. Cyclopropylmethyl Protection of Phenols: Total Synthesis of the Resveratrol Dimers Anigopreissin A and Resveratrol-Piceatannol Hybrid. ChemistryOpen 2018; 7:953-956. [PMID: 30524921 PMCID: PMC6276102 DOI: 10.1002/open.201800214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Indexed: 12/11/2022] Open
Abstract
We demonstrate the versatile use of the cyclopropylmethyl group to protect phenols through the total synthesis of two benzofuran-based natural products, that is, anigopreissin A and the resveratrol-piceatannol hybrid. This protecting group is a good alternative to the conventional methyl group, owing to the feasibility of introduction, stability under a variety of conditions, and its relative ease of removal under different acidic conditions.
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Affiliation(s)
- Arvind Kumar
- Department of ChemistryUmeå University90187UmeåSweden
| | | | - Dominik Werz
- Department of ChemistryUmeå University90187UmeåSweden
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23
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Krzyzanowski A, Saleeb M, Elofsson M. Synthesis of Indole-, Benzo[ b]thiophene-, and Benzo[ b]selenophene-Based Analogues of the Resveratrol Dimers Viniferifuran and (±)-Dehydroampelopsin B. Org Lett 2018; 20:6650-6654. [PMID: 30350667 DOI: 10.1021/acs.orglett.8b02638] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A convenient synthetic strategy to obtain viniferifuran and (±)-dehydroampelopsin B analogues based on the heterocyclic cores of indole, benzo[ b]thiophene, and benzo[ b]selenophene is presented. The key transformations utilized in the described syntheses include Sonogashira couplings, Cacchi and alkyne electrophilic cyclizations, Horner-Wadsworth-Emmons (HWE) reaction, chemoselective Suzuki-Miyaura couplings, and acid-promoted intramolecular cyclization to form the seven-membered ring of (±)-dehydroampelopsin B.
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Affiliation(s)
| | - Michael Saleeb
- Department of Chemistry , Umeå University , Umeå 90187 , Sweden
| | - Mikael Elofsson
- Department of Chemistry , Umeå University , Umeå 90187 , Sweden
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24
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Regioselective biomimetic oxidation of halogenated resveratrol for the synthesis of (±)-ε-viniferin and its analogues. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.06.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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25
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Yamane S, Hinoue T, Usuki Y, Itazaki M, Nakazawa H, Hayashi Y, Kawauchi S, Miura M, Satoh T. Iridium-Catalyzed Aerobic Coupling of Salicylaldehydes with Alkynes: A Remarkable Switch of Oxacyclic Product. Chemistry 2018; 24:7852-7855. [PMID: 29573094 DOI: 10.1002/chem.201801245] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 12/12/2022]
Abstract
The iridium(III)/copper(II)-catalyzed dehydrogenative coupling of salicylaldehydes with internal alkynes proceeds efficiently under atmospheric oxygen through aldehyde C-H bond cleavage and decarbonylation. A variety of benzofuran derivatives can be synthesized by the environmentally benign procedure. DFT calculations suggest that this unique transformation involves the facile deinsertion of CO in the key metallacycle intermediate, which is in marked contrast to the corresponding rhodium(III) catalysis that leads to CO-retentive chromone derivatives.
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Affiliation(s)
- Shintaro Yamane
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Tomoaki Hinoue
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yoshinosuke Usuki
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Masumi Itazaki
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Hiroshi Nakazawa
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Yoshihiro Hayashi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 (E4-6), Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Susumu Kawauchi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 (E4-6), Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Tetsuya Satoh
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
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26
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Gangireddy Venkata SR, Narkhede UC, Jadhav VD, Gangu Naidu C. First total synthesis of medicinally important 3,4,7-trimethoxy-9,10-dihydrophenanthrene-1,5-diol. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Vo DD, Elofsson M. Synthesis of 4-Formyl-2-arylbenzofuran Derivatives by PdCl(C3H5)dppb-Catalyzed Tandem Sonogashira Coupling-Cyclization under Microwave Irradiation - Application to the Synthesis of Viniferifuran Analogues. ChemistrySelect 2017. [DOI: 10.1002/slct.201701490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Duy D. Vo
- Department of Chemistry; Umeå University; SE90187 Umeå Sweden
| | - Mikael Elofsson
- Department of Chemistry; Umeå University; SE90187 Umeå Sweden
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28
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Qin L, Vo DD, Nakhai A, Andersson CD, Elofsson M. Diversity-Oriented Synthesis of Libraries Based on Benzofuran and 2,3-Dihydrobenzofuran Scaffolds. ACS COMBINATORIAL SCIENCE 2017; 19:370-376. [PMID: 28306238 DOI: 10.1021/acscombsci.7b00014] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Benzofuran and 2,3-dihydrobenzofuran scaffolds are core components in a large number of biologically active natural and synthetic compounds including approved drugs. Herein, we report efficient synthetic protocols for preparation of libraries based on 3-carboxy 2-aryl benzofuran and 3-carboxy 2-aryl trans-2,3-dihydrobenzofuran scaffolds using commercially available salicylaldehydes, aryl boronic acids or halides and primary or secondary amines. The building blocks were selected to achieve variation in physicochemical properties and statistical molecular design and subsequent synthesis resulted in 54 lead-like compounds with molecular weights of 299-421 and calculated octanol/water partition coefficients of 1.9-4.7.
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Affiliation(s)
- Liena Qin
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | - Duc-Duy Vo
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | - Azadeh Nakhai
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | | | - Mikael Elofsson
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
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29
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Biomimetic Synthesis of Resveratrol Trimers Catalyzed by Horseradish Peroxidase. Molecules 2017; 22:molecules22050819. [PMID: 28513542 PMCID: PMC6154677 DOI: 10.3390/molecules22050819] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/11/2017] [Accepted: 05/11/2017] [Indexed: 01/05/2023] Open
Abstract
Biotransformation of trans-resveratrol and synthetic (±)-ε-viniferin in aqueous acetone using horseradish peroxidase and hydrogen peroxide as oxidants resulted in the isolation of two new resveratrol trimers (3 and 4), one new resveratrol derivative (5) with a dihydrobenzofuran skeleton, together with two known stilbene trimers (6 and 7), and six known stilbene dimers (8-13). Their structures and relative configurations were identified through spectral analysis and possible formation mechanisms were also discussed. Among these oligomers, trimers 6 and 7 were obtained for the first time through direct transformation from resveratrol. Results indicated that this reaction is suitable for the preparation of resveratrol oligomers with a complex structure.
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30
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Vo DD, Elofsson M. Total Synthesis of Viniferifuran, Resveratrol-Piceatannol Hybrid, Anigopreissin A and Analogues - Investigation of Demethylation Strategies. Adv Synth Catal 2016; 358:4085-4092. [PMID: 28701908 PMCID: PMC5484382 DOI: 10.1002/adsc.201601089] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Indexed: 12/11/2022]
Abstract
Resveratrol-based natural products constitute a valuable source of unique compounds with diverse biological activities. In this report we investigate demethylation strategies to minimize formation of cyclized and dimerized products during the synthesis of viniferifuran and analogues. We found that boron trichloride/tetra-n-butylammonium iodide (BCl3/TBAI) is typically more effective than boron tribromide (BBr3). Based on these findings we carried out the first syntheses of dehydro-δ-viniferin, resveratrol-piceatannol hybrid and anigopreissin A. In addition, we have developed a short and efficient route to viniferifuran that was obtained in 13% yield over six steps.
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Affiliation(s)
- Duc Duy Vo
- Department of ChemistryUmeå UniversitySE90187UmeåSweden
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Liu JT, Simmons CJ, Xie H, Yang F, Zhao XL, Tang Y, Tang W. Synthesis of Highly Substituted Benzofuran-containing Natural Products via Rh-catalyzed Carbonylative Benzannulation. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600992] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ji-tian Liu
- School of Pharmacy; University of Wisconsin-Madison; Madison, WI 53705 USA
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 P. R. China
| | - Christopher J. Simmons
- School of Pharmacy; University of Wisconsin-Madison; Madison, WI 53705 USA
- Department of Chemistry; University of Wisconsin-Madison; Madison, WI 53706 USA
| | - Haibo Xie
- School of Pharmacy; University of Wisconsin-Madison; Madison, WI 53705 USA
| | - Fan Yang
- School of Pharmacy; University of Wisconsin-Madison; Madison, WI 53705 USA
| | - Xian-liang Zhao
- School of Pharmacy; University of Wisconsin-Madison; Madison, WI 53705 USA
- School of Biological and Chemical Engineering; Zhejiang University of Science and Technology; Hangzhou 310023 P. R. China
| | - Yu Tang
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 P. R. China
- Key Laboratory of Marine Drugs; Chinese Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
| | - Weiping Tang
- School of Pharmacy; University of Wisconsin-Madison; Madison, WI 53705 USA
- Department of Chemistry; University of Wisconsin-Madison; Madison, WI 53706 USA
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