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Manna S, Paul S, Kong WY, Aich D, Sahoo R, Tantillo DJ, Panda S. Stereodivergent Zweifel Olefination and its Mechanistic Dichotomy. Angew Chem Int Ed Engl 2023; 62:e202309136. [PMID: 37495925 DOI: 10.1002/anie.202309136] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 07/28/2023]
Abstract
Stereoselective Zweifel olefination using boronate complexes carrying two different reactive π-systems was achieved to synthesize vinyl heteroarenes and conjugated 1,3-dienes in good yield and up to 100 % stereoselectivity, which remains unexplored until now. Most importantly, we report the unprecedented formation of E vs. Z-vinyl heteroarenes for different heteroarenes under identical conditions. Density functional theory (DFT) investigations unveil the mechanistic dichotomy between olefin and heteroarene activation followed by 1,2-migration, leading to E or Z-vinyl heteroarenes respectively. We also report a previously unknown reversal of stereoselectivity by using 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) as an electrophile. The Zweifel olefination using a boronate complex that carries two different olefins was previously unexplored due to significant challenges associated with the site-selective activation of olefins. We have solved this problem and reported the site-selective activation of olefins for the stereoselective synthesis of 1,3-dienes.
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Affiliation(s)
- Samir Manna
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Swagata Paul
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Debasis Aich
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Rupam Sahoo
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Santanu Panda
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
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2
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Novel stilbene analogues containing thiazole moiety: Synthesis, biological evaluation and docking study. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Jian W, He D, Song S. Synthesis, Biological Evaluation, and Molecular Modeling Studies of New Oxadiazole-Stilbene Hybrids against Phytopathogenic Fungi. Sci Rep 2016; 6:31045. [PMID: 27530962 PMCID: PMC4987640 DOI: 10.1038/srep31045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 07/12/2016] [Indexed: 02/08/2023] Open
Abstract
Natural stilbenes (especially resveratrol) play important roles in plant protection by acting as both constitutive and inducible defenses. However, their exogenous applications on crops as fungicidal agents are challenged by their oxidative degradation and limited availability. In this study, a new class of resveratrol-inspired oxadiazole-stilbene hybrids was synthesized via Wittig-Horner reaction. Bioassay results indicated that some of the compounds exhibited potent fungicidal activity against Botrytis cinerea in vitro. Among these stilbene hybrids, compounds 11 showed promising inhibitory activity with the EC50 value of 144.6 μg/mL, which was superior to that of resveratrol (315.6 μg/mL). Remarkably, the considerably abnormal mycelial morphology was observed in the presence of compound 11. The inhibitory profile was further proposed by homology modeling and molecular docking studies, which showed the possible interaction of resveratrol and oxadiazole-stilbene hybrids with the cytochrome P450-dependent sterol 14α-demethylase from B. cinerea (BcCYP51) for the first time. Taken together, these results would provide new insights into the fungicidal mechanism of stilbenes, as well as an important clue for biology-oriented synthesis of stilbene hybrids with improved bioactivity against plant pathogenic fungi in crop protection.
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Affiliation(s)
- Weilin Jian
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Daohang He
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Shaoyun Song
- State Key Lab of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong 510006, People's Republic of China
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Caruso F, Mendoza L, Castro P, Cotoras M, Aguirre M, Matsuhiro B, Isaacs M, Rossi M, Viglianti A, Antonioletti R. Antifungal activity of resveratrol against Botrytis cinerea is improved using 2-furyl derivatives. PLoS One 2011; 6:e25421. [PMID: 22022392 PMCID: PMC3191159 DOI: 10.1371/journal.pone.0025421] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 09/05/2011] [Indexed: 11/18/2022] Open
Abstract
The antifungal effect of three furyl compounds closely related to resveratrol, (E)-3,4,5-trimethoxy-β-(2-furyl)-styrene (1), (E)-4-methoxy-β-(2-furyl)-styrene (2) and (E)-3,5-dimethoxy-β-(2-furyl)-styrene (3) against Botrytis cinerea was analyzed. The inhibitory effect, at 100 µg ml(-1) of compounds 1, 2, 3 and resveratrol on conidia germination, was determined to be about 70%, while at the same concentration pterostilbene (a dimethoxyl derivative of resveratrol) produced complete inhibition. The title compounds were more fungitoxic towards in vitro mycelial growth than resveratrol and pterostilbene. Compound 3 was the most active and a potential explanation of this feature is given using density functional theory (DFT) calculations on the demethoxylation/demethylation process. Compound 3 was further evaluated for its effects on laccase production, oxygen consumption and membrane integrity of B. cinerea. An increase of the laccase activity was observed in the presence of compound 3 and, using Sytox Green nucleic acid stain, it was demonstrated that this compound altered B. cinerea membrane. Finally, compound 3 partially affected conidia respiration.
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Affiliation(s)
- Francesco Caruso
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, University of Rome, Istituto Chimico, Rome, Italy
- * E-mail: (FC); (MR)
| | - Leonora Mendoza
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Paulo Castro
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Milena Cotoras
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Maria Aguirre
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Betty Matsuhiro
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Mauricio Isaacs
- Facultad de Ciencias, Departamento de Química, Universidad de Chile, Santiago, Chile
| | - Miriam Rossi
- Vassar College, Department of Chemistry, Poughkeepsie, New York, United States of America
- * E-mail: (FC); (MR)
| | | | - Roberto Antonioletti
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, University of Rome, Istituto Chimico, Rome, Italy
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Thangaraj S, Tsao WS, Luo YW, Lee YJ, Chang CF, Lin CC, Uang BJ, Yu CC, Guh JH, Teng CM. Total synthesis of moniliformediquinone and calanquinone A as potent inhibitors for breast cancer. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.06.054] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Lim C, Lee M, Park EJ, Cho R, Park HJ, Lee SJ, Cho H, Lee SK, Kim S. Sulfonamide derivatives of styrylheterocycles as a potent inhibitor of COX-2-mediated prostaglandin E2 production. Bioorg Med Chem Lett 2010; 20:6938-41. [PMID: 20970329 DOI: 10.1016/j.bmcl.2010.09.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 09/16/2010] [Accepted: 09/28/2010] [Indexed: 11/25/2022]
Abstract
The overproduction of prostaglandin E(2) (PGE(2)) plays an important role in a variety of pathophysiological processes including inflammation and carcinogenesis. Therefore, the modulation of PGE(2) production is a promising target in the design of chemotherapeutic agents. In the present study, the inhibitory effects of a series of styrylheterocycles having either a p-SO(2)NH(2) or p-SO(2)Me group on the production of cyclooxygenase-2-mediated PGE(2) were evaluated in lipopolysaccharide-stimulated RAW264.7 murine macrophages. Among the series of styrylheterocycle derivatives, (E)-4-(2-(thiophen-3-yl)vinyl)benzenesulfonamide exhibited a potent inhibitory activity, with an IC(50) value of 0.013 μM. The inhibitory activity against the overproduction of PGE(2) by the active compound was found to be due in part to the suppression of COX-2 mRNA expression.
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Affiliation(s)
- Chaemin Lim
- College of Pharmacy, Seoul National University, Seoul, Republic of Korea
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Li NG, Shi ZH, Tang YP, Yang JP, Wang ZJ, Song SL, Lu TL, Duan JA. Targeting the development of resveratrol as a chemopreventive agent. Drug Dev Res 2010. [DOI: 10.1002/ddr.20380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Zarghi A, Arfaee S, Rao PNP, Knaus EE. Design, synthesis, and biological evaluation of 1,3-diarylprop-2-en-1-ones : A novel class of cyclooxygenase-2 inhibitors. Bioorg Med Chem 2006; 14:2600-5. [PMID: 16356730 DOI: 10.1016/j.bmc.2005.11.041] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2005] [Revised: 11/16/2005] [Accepted: 11/21/2005] [Indexed: 10/25/2022]
Abstract
A group of regioisomeric (E)-1,3-diarylprop-2-en-1-one derivatives possessing a COX-2 SO2Me pharmacophore at the para position of the C-1 or C-3 phenyl ring, in conjunction with a C-3 or C-1 phenyl (4-H) or substituted-phenyl ring (4-F, 4-OMe and 4-Me), were designed for evaluation as selective cyclooxygenase-2 (COX-2) inhibitors. These target (E)-1,3-diarylprop-2-en-1-ones were synthesized via a Claisen-Schmidt condensation reaction. In vitro COX-1/COX-2 isozyme inhibition structure-activity studies identified (E)-1-(4-methanesulfonylphenyl)-3-(4-methylphenyl)prop-2-en-1-one (9f) as a potent COX-2 inhibitor (IC50=0.3 microM) with a high COX-2 selectivity index (SI=106) comparable to that of the reference drug rofecoxib (COX-2 IC50=0.5 microM; COX-2 SI>200). A molecular modeling study where 9f was docked in the binding site of COX-2 showed that the para-SO2Me substituent on the C-1 phenyl ring is oriented in the vicinity of the secondary COX-2 binding site near Val523. The structure-activity data acquired indicate that the propenone moiety constitutes a suitable scaffold to design novel acyclic 1,3-diarylprop-2-en-1-ones with selective COX-2 inhibitory activity.
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Affiliation(s)
- Afshin Zarghi
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
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Park EJ, Min HY, Ahn YH, Bae CM, Pyee JH, Lee SK. Synthesis and inhibitory effects of pinosylvin derivatives on prostaglandin E2 production in lipopolysaccharide-induced mouse macrophage cells. Bioorg Med Chem Lett 2004; 14:5895-8. [PMID: 15501064 DOI: 10.1016/j.bmcl.2004.09.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2004] [Revised: 09/08/2004] [Accepted: 09/09/2004] [Indexed: 11/21/2022]
Abstract
A series of natural stilbenoids, pinosylvin and its derivatives, were synthesized and evaluated for the inhibitory activity of prostaglandin E(2) production in lipopolysaccharide-induced RAW 264.7 cells. Potential inhibitors, including 3,5-dimethoxy-trans-stilbene and 3-hydroxy-5-benzyloxy-trans-stilbene, have been newly identified, and thus providing chemical leads for the further development of anti-inflammatory or cancer chemopreventive agents.
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Affiliation(s)
- Eun-Jung Park
- College of Pharmacy, Ewha Womans University, 11-1 Daehyun-dong, Seodaemun-ku, Seoul 120-750, Republic of Korea
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Uddin MJ, Rao PNP, Rahim MA, McDonald R, Knaus EE. A new class of acyclic 2-alkyl-1,2-diaryl (E)-olefins as selective cyclooxygenase-2 (COX-2) inhibitors. Bioorg Med Chem Lett 2004; 14:4911-4. [PMID: 15341950 DOI: 10.1016/j.bmcl.2004.07.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2004] [Revised: 07/13/2004] [Accepted: 07/14/2004] [Indexed: 11/25/2022]
Abstract
A new class of (E)-2-alkyl-2-(4-methanesulfonylphenyl)-1-phenylethenes were designed for evaluation as selective cyclooxygense-2 (COX-2) inhibitors. The target olefins were synthesized, via a Takeda olefination reaction, followed by oxidation of the respective thiomethyl olefinic intermediate. In vitro COX-1/COX-2 inhibition studies identified (E)-2-(4-methanesulfonylphenyl)-1-phenyloct-1-ene (8d) as a potent (IC(50)=0.77 microM) and selective (Selectivity Index>130) COX-2 inhibitor.
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Affiliation(s)
- Md Jashim Uddin
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2N8, Canada
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