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Chen Z, Zhao K, Jia Y. Bioinspired Total Synthesis of (+)-Euphorikanin A. Angew Chem Int Ed Engl 2022; 61:e202200576. [PMID: 35165997 DOI: 10.1002/anie.202200576] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Indexed: 11/12/2022]
Abstract
We have achieved a bioinspired total synthesis of (+)-euphorikanin A, which possesses an intriguing and complex 5/6/7/3-fused tetracyclic skeleton bearing a bridged [3.2.1]-γ-lactone moiety. Key transformations include stereoselective alkylation and aldol condensation to install the main stereocenters, an intramolecular nucleophile-catalyzed aldol lactonization of carboxylic acid-ketone to assemble the five-membered ring, a McMurry coupling to construct the seven-membered ring, and a biomimetic benzilic acid type rearrangement to form the bridged [3.2.1]-γ-lactone moiety.
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Affiliation(s)
- Zhuang Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Kuan Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
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Chen Z, Zhao K, Jia Y. Bioinspired Total Synthesis of (+)‐Euphorikanin A. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhuang Chen
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences and Chemical Biology Center Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Kuan Zhao
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences and Chemical Biology Center Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences and Chemical Biology Center Peking University Xue Yuan Rd. 38 Beijing 100191 China
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THATIKONDA NARENDERREDDY, CHEBOLU NAGASESHASAIPAVANKUMAR, BUDDE MAHENDAR, VAIDYA JAYATHIRTHARAO. Triphosgene mediated chlorination of Baylis–Hillman adducts. J CHEM SCI 2012. [DOI: 10.1007/s12039-012-0243-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Basavaiah D, Reddy BS, Badsara SS. Recent contributions from the Baylis-Hillman reaction to organic chemistry. Chem Rev 2010; 110:5447-674. [PMID: 20735052 DOI: 10.1021/cr900291g] [Citation(s) in RCA: 753] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Deevi Basavaiah
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India.
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Das B, Damodar K, Bhunia N, Shashikanth B. Mild and practical stereoselective synthesis of (Z)- and (E)-allyl bromides from Baylis–Hillman adducts using Appel agents (PPh3/CBr4): a facile synthesis of semiplenamides C and E. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.132] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang X, Rao W, Sally, Chan PWH. Iron(III) chloride-catalysed direct nucleophilic α-substitution of Morita-Baylis-Hillman alcohols with alcohols, arenes, 1,3-dicarbonyl compounds, and thiols. Org Biomol Chem 2009; 7:4186-93. [DOI: 10.1039/b908447a] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Das B, Kanth BS, Reddy KR, Satyalakshmi G, Kumar RA. A Simple and Efficient Protocol for Chlorination of Baylis–Hillman Adducts Using PPh3/CCl4. CHEM LETT 2008. [DOI: 10.1246/cl.2008.512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Liu Y, Xu D, Xu Z, Zhang Y. Stereoselective synthesis of trisubstituted alkenes containing (Z)-allylthio units from the acetates of Baylis–Hillman adducts. HETEROATOM CHEMISTRY 2008. [DOI: 10.1002/hc.20394] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Das B, Venkateswarlu K, Damodar K, Suneel K. Ammonium acetate catalyzed improved method for the regioselective conversion of olefins into halohydrins and haloethers at room temperature. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.12.041] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu Y, Zheng H, Xu D, Xu Z, Zhang Y. AN EFFICIENT AND STEREOSELECTIVE SYNTHESIS OF (Z)-ALLYL CHLORIDES FROM BAYLIS-HILLMAN ADDUCTS USING VILSMEIER-HAACK REAGENT. ORG PREP PROCED INT 2007. [DOI: 10.1080/00304940709356011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Das B, Majhi A, Reddy KR, Venkateswarlu K. I2–SiO2: An efficient heterogeneous catalyst for the Johnson–Claisen rearrangement of Baylis–Hillman adducts. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.08.090] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Das B, Chowdhury N, Damodar K, Banerjee J. A Mild and Efficient Stereoselective Synthesis of (Z)- and (E)-Allyl Sulfides and Potent Antifungal Agent, (Z)-3-(4-Methoxybenzylidene)thiochroman-4-one from Morita-Baylis-Hillman Acetates. Chem Pharm Bull (Tokyo) 2007; 55:1274-6. [PMID: 17666860 DOI: 10.1248/cpb.55.1274] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A facile stereoselective synthesis of (Z)- and (E)-allyl sulfides has been accomplished from Morita-Baylis-Hillman acetates in one-pot by treatment with benzene thiol in the presence of catalytic amounts of 15% aqueous NaOH and TBAI in DMSO at room temperature. The method has been applied for the synthesis of (Z)-3-(4-methoxybenzylidene)thiochroman-4-one, a potent antifungal compound.
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Affiliation(s)
- Biswanath Das
- Organic Chemistry Division-I, Indian Institute of Chemical Technology, Hyderabad, India.
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Zhu Q, Tremblay MS. Allyl and benzyl iodides by the anomalous action of iodotrimethylsilane. Bioorg Med Chem Lett 2006; 16:6170-2. [PMID: 17049854 DOI: 10.1016/j.bmcl.2006.09.087] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Revised: 09/11/2006] [Accepted: 09/14/2006] [Indexed: 11/19/2022]
Abstract
Iodotrimethylsilane (TMSI), routinely used for the dealkylation of ethers and esters, has been found to efficiently convert allyl and benzyl phosphotriesters into the corresponding iodides under mild, Brønsted-neutral conditions. In contrast, alkyl and aryl phosphotriesters were dealkylated to the corresponding phosphates under identical conditions.
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Affiliation(s)
- Qing Zhu
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang Province 310014, PR China.
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Treatment of Baylis–Hillman adducts with triethyl orthoacetate in the presence of heterogeneous catalysts: a method for the stereoselective synthesis of two different types of trisubstituted alkenes. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.08.060] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Das B, Chowdhury N, Banerjee J, Majhi A. A facile one-pot stereoselective synthesis of trisubstituted (E)-2-methylalk-2-enoic acids from unactivated Baylis–Hillman adducts and a simple access to some important insect pheromones. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.07.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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(Bromodimethyl)sulfonium bromide catalyzed efficient multicomponent one-pot synthesis of homoallylic amines. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.05.101] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Das B, Krishnaiah M, Venkateswarlu K. Highly regioselective ring opening of epoxides and aziridines using (bromodimethyl)sulfonium bromide. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.04.059] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chandrasekhar S, Chandrashekar G, Vijeender K, Reddy MS. Synthesis of trisubstituted alkenes by reductive dehydroxylation of Baylis–Hillman adducts using polymethylhydrosiloxane (PMHS) and catalytic B(C6F5)3. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Liu YK, Xu DQ, Xu ZY, Zhang YM. A convenient and stereoselective synthesis of (Z)-allyl selenides via Sm/TMSCl system-promoted coupling of Baylis-Hillman adducts with diselenides. J Zhejiang Univ Sci B 2006; 7:393-6. [PMID: 16615170 PMCID: PMC1462932 DOI: 10.1631/jzus.2006.b0393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A simple and convenient procedure for stereoselective synthesis of (Z)-allyl selenides has been developed by a one-pot reaction of diselenides with Baylis-Hillman adducts in the presence of samarium metal-trimethylsilyl chloride under mild conditions. Presumably, the diselenides are cleaved by Sm/TMSCl system to form selenide anions, which then undergo S(N)2' substitution of Baylis-Hillman adducts to produce the (Z)-allyl selenides.
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Das B, Banerjee J, Chowdhury N, Majhi A. Synthetic Applications of Baylis-Hillman Chemistry: An Efficient and Solely Stereoselective Synthesis of (E)-.ALPHA.-Methylcinnamic Acids and Potent Hypolipidemic Agent LK-903 from Unmodified Baylis-Hillman Adducts. Chem Pharm Bull (Tokyo) 2006; 54:1725-7. [PMID: 17139111 DOI: 10.1248/cpb.54.1725] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An efficient and solely stereoselective synthesis of (E)-alpha-methylcinnamic acids has been accomplished in single pot by reduction of the unmodified Baylis-Hillman adducts, methyl-3-hydroxy-3-aryl-2-methylenepropanoates with I(2)/NaBH(4) reagent system at room temperature followed by hydrolysis. The efficacy of this method has been proved in the total synthesis of 1-[p-(myristyloxy)-alpha-methylcinnamoyl]glycerol, LK-903, a highly active hypolipidemic agent.
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Affiliation(s)
- Biswanath Das
- Organic Chemistry Division-I, Indian Institute of Chemical Technology.
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