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Hiraki M, Okuno K, Nishiyori R, Noser AA, Shirakawa S. Efficient asymmetric syntheses of α-quaternary lactones and esters through chiral bifunctional sulfide-catalyzed desymmetrizing bromolactonization of α,α-diallyl carboxylic acids. Chem Commun (Camb) 2021; 57:10907-10910. [PMID: 34590630 DOI: 10.1039/d1cc03874e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Asymmetric halolactonizations are powerful methods for the syntheses of chiral lactones. Catalytic and highly enantioselective halolactonizations of α-allyl carboxylic acids, however, continue to present a formidable challenge. Herein, we report the chiral bifunctional sulfide-catalyzed desymmetrizing bromolactonizations of α,α-diallyl carboxylic acids. These reactions efficiently produced chiral α-quaternary lactones and esters.
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Affiliation(s)
- Mana Hiraki
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Ken Okuno
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Ryuichi Nishiyori
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Ahmed A Noser
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan. .,Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Seiji Shirakawa
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
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Czekelius C. Total Synthesis of Mesembrine - The Construction of Quaternary Stereocenters by Gold-Catalyzed Diyne Desymmetrization. Isr J Chem 2018. [DOI: 10.1002/ijch.201700060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Constantin Czekelius
- Institute for Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-Universität Düsseldorf; Universitätsstrasse 1 D-40225 Düsseldorf
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Nagao Y, Hisanaga T, Egami H, Kawato Y, Hamashima Y. Desymmetrization of Bisallylic Amides through Catalytic Enantioselective Bromocyclization with BINAP Monoxide. Chemistry 2017; 23:16758-16762. [PMID: 29044749 DOI: 10.1002/chem.201704847] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 01/12/2023]
Abstract
We report the first desymmetrization of bisallylic amides by enantioselective bromocyclization with BINAP monoxide as a catalyst. Depending upon the substitution pattern of the alkene moieties, densely functionalized, optically active oxazoline or dihydrooxazine compounds were obtained in a highly stereoselective manner. The remaining alkene moiety was subjected to various functional group manipulations to afford a diverse array of chiral molecules with multiple stereogenic centers.
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Affiliation(s)
- Yoshihiro Nagao
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Tatsunari Hisanaga
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Hiromichi Egami
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Yuji Kawato
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
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Krstenansky JL. Mesembrine alkaloids: Review of their occurrence, chemistry, and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2017; 195:10-19. [PMID: 27939420 DOI: 10.1016/j.jep.2016.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 11/06/2016] [Accepted: 12/05/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mesembrine alkaloids are considered to be the primary active constituents of the South African medicinal plant Sceletium tortuosum (L.) N.E.Br. (Aizoaceae), and it is used as the dried or fermented aerial material from the plant, which is known as kanna (aka, channa, kougoed). Traditional regional use ranged from relieving thirst, mild analgesia, and alteration of mood. Current interest has focused primarily on the antidepressant action of preparations based on the plant and commercialization is expanding the recognition and availability of these preparations. MATERIALS AND METHODS Searches for the keywords "Sceletium or mesembrine" were performed in "PubMed-NCBI", "Chemical Abstracts SciFinder" and "Thomson Reuters Web of Science" databases in addition to the inclusion of references cited within prior reviews and scientific reports. Additionally the "SciFinder" database was searched using 3a-phenyl-cis-octahydroindole in the SciFinder Substructure Module (SSM). Plant taxonomy was validated by the database "The Plant List". RESULTS This review focuses on the chemistry, analysis, and pharmacology of the mesembrine alkaloids. Despite a long history of medicinal used and research investigation, there has been a renewed interest in the pharmacological properties of the mesembrine alkaloids and much of the pharmacology has only recently been published. The two major active alkaloids mesembrine and mesembrenone are still in the process of being more fully characterized pharmacologically. They are serotonin reuptake inhibitors, which provides a rationale for the plant's traditional use as an antidepressant, but other actions are beginning to appear in the literature. Additionally, mesembrenone has reasonably potent PDE4 inhibitory activity. This review intends to provide an overview of the available literature, summarize the current findings, and put them in perspective with earlier studies and reviews.
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Spittler M, Lutsenko K, Czekelius C. Total Synthesis of (+)-Mesembrine Applying Asymmetric Gold Catalysis. J Org Chem 2016; 81:6100-5. [DOI: 10.1021/acs.joc.6b00985] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael Spittler
- Institute for Organic Chemistry
and Macromolecular Chemistry, Universität Düsseldorf, Universitätsstr.
1, D-40225 Düsseldorf, Germany
| | - Kiril Lutsenko
- Institute for Organic Chemistry
and Macromolecular Chemistry, Universität Düsseldorf, Universitätsstr.
1, D-40225 Düsseldorf, Germany
| | - Constantin Czekelius
- Institute for Organic Chemistry
and Macromolecular Chemistry, Universität Düsseldorf, Universitätsstr.
1, D-40225 Düsseldorf, Germany
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Bhosale VA, Ukale DU, Waghmode SB. Total synthesis of Sceletium alkaloids (±)-joubertinamine, (±)-epijoubertinamine, (±)-tortuosamine and formal synthesis of (±)-mesembrine, (±)-N-formyltortuosamine. NEW J CHEM 2016. [DOI: 10.1039/c6nj00630b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient collective formal/total synthesis of Sceletium alkaloids achieved by employing the Wittig olefination–Claisen rearrangement protocol.
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Affiliation(s)
- Viraj A. Bhosale
- Garware Research Center
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune 411007
- India
| | - Dattatraya U. Ukale
- Garware Research Center
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune 411007
- India
| | - Suresh B. Waghmode
- Garware Research Center
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune 411007
- India
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Ozaki T, Kobayashi Y. Synthesis of (−)-mesembrine using the quaternary carbon-constructing allylic substitution. Org Chem Front 2015. [DOI: 10.1039/c4qo00353e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wei MX, Wang CT, Du JY, Qu H, Yin PR, Bao X, Ma XY, Zhao XH, Zhang GB, Fan CA. Enantioselective synthesis of Amaryllidaceae alkaloids (+)-vittatine, (+)-epi-vittatine, and (+)-buphanisine. Chem Asian J 2013; 8:1966-71. [PMID: 23788411 DOI: 10.1002/asia.201300595] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Indexed: 11/10/2022]
Abstract
Cat. on a hot tin roof: Enantioselective catalytic Michael addition of α-cyanoketones to acrylates under bifunctional organocatalysis was used to construct the unique arylic all-carbon quaternary stereocenter, which is synthetically crucial in the chemical synthesis of optically pure cis-aryl hydroindole alkaloids. The protocol offers an asymmetric route to (+)-vittatine, (+)-epi-vittatine, and (+)-buphanisine.
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Affiliation(s)
- Meng-Xue Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
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Liu H, Zheng K, Lu X, Wang X, Hong R. Study on the total synthesis of velbanamine: Chemoselective dioxygenation of alkenes with PIFA via a stop-and-flow strategy. Beilstein J Org Chem 2013; 9:983-90. [PMID: 23766815 PMCID: PMC3678578 DOI: 10.3762/bjoc.9.113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 04/18/2013] [Indexed: 11/23/2022] Open
Abstract
A "stop-and-flow" strategy was developed for the chemoselective dioxygenation of alkenes with a PIFA-initiated cyclization. This method is conceived for the desymmetrization of seco-diene, and a series of substituted 5-hydroxymethyl-γ-lactones were constructed after hydrolysis. This strategy also differentiates terminally substituted alkenes and constitutes a potentially novel synthetic approach for the efficient synthesis toward velbanamine.
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Affiliation(s)
- Huili Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhengjiang 321004, China
| | - Kuan Zheng
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiang Lu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiaoxia Wang
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhengjiang 321004, China
| | - Ran Hong
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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Gu Q, You SL. Desymmetrization of cyclohexadienones via cinchonine derived thiourea-catalyzed enantioselective aza-Michael reaction and total synthesis of (-)-Mesembrine. Chem Sci 2011. [DOI: 10.1039/c1sc00083g] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Diastereoselective Desymmetrization of Symmetric Dienes and its Synthetic Application. Symmetry (Basel) 2010. [DOI: 10.3390/sym2020437] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Guérard KC, Sabot C, Racicot L, Canesi S. Oxidative Friedel−Crafts Reaction and its Application to the Total Syntheses of Amaryllidaceae Alkaloids. J Org Chem 2009; 74:2039-45. [DOI: 10.1021/jo802728u] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kimiaka C. Guérard
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal, C.P. 8888, Succursale Centre-Ville, Montréal, H3C 3P8, Québec, Canada
| | - Cyrille Sabot
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal, C.P. 8888, Succursale Centre-Ville, Montréal, H3C 3P8, Québec, Canada
| | - Léanne Racicot
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal, C.P. 8888, Succursale Centre-Ville, Montréal, H3C 3P8, Québec, Canada
| | - Sylvain Canesi
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal, C.P. 8888, Succursale Centre-Ville, Montréal, H3C 3P8, Québec, Canada
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Facile formation of tetrahydrofurans with multiple chiral centers using double iodoetherification of σ-symmetric diene acetals: short asymmetric total synthesis of rubrenolide and rubrynolide. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.088] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Imao D, Itoi A, Yamazaki A, Shirakura M, Ohtoshi R, Ogata K, Ohmori Y, Ohta T, Ito Y. Easy Access to Esters with a Benzylic Quaternary Carbon Center from Diallyl Malonates by Palladium-Catalyzed Decarboxylative Allylation. J Org Chem 2007; 72:1652-8. [PMID: 17261068 DOI: 10.1021/jo0621569] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Diallyl 2-alkyl-2-arylmalonates underwent palladium-catalyzed decarboxylative allylation quickly under mild conditions. In contrast, no reaction took place with diallyl 2,2-dialkylmalonates under the same conditions. Electron-donating phosphine ligands were found to be vital for this reaction. Most of the solvents used did not affect the catalytic cycle. Catalysis in [bmim][BF4], a well-known ionic liquid, was inhibited as a result of formation of a hydrogen bond between a carboxylate anion and a [bmim]+ cation; however, the reaction in [bdmim][BF4], in which the acidic proton of [bmim][BF4] was replaced with a methyl group, proceeded smoothly. The catalytic mechanism was investigated using a tetradeuterated substrate and an enzymatically synthesized enantio-enriched allyl methyl 2-methyl-2-phenylmalonate. Even the electron-deficient phosphite ligand was found to be active for catalysis of diallyl 2-methyl-2-(2- or 4-nitrophenyl)malonates.
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Affiliation(s)
- Daisuke Imao
- Department of Molecular Science and Technology, Faculty of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan
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Fujioka H, Ohba Y, Hirose H, Murai K, Kita Y. A double iodoetherification of sigma-symmetric diene acetals for installing four stereogenic centers in a single operation: short asymmetric total synthesis of rubrenolide. Angew Chem Int Ed Engl 2006; 44:734-7. [PMID: 15612067 DOI: 10.1002/anie.200461584] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hiromichi Fujioka
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan.
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Fujioka H, Ohba Y, Hirose H, Murai K, Kita Y. A Double Iodoetherification of ?-Symmetric Diene Acetals for Installing Four Stereogenic Centers in a Single Operation: Short Asymmetric Total Synthesis of Rubrenolide. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200461584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Fujioka H, Kotoku N, Sawama Y, Kitagawa H, Ohba Y, Wang TL, Nagatomi Y, Kita Y. Asymmetric Synthesis by the Intramolecular Haloetherification Reaction of Ene Acetal: Discrimination of Prochiral Dienes in Cyclohexane Systems. Chem Pharm Bull (Tokyo) 2005; 53:952-7. [PMID: 16079527 DOI: 10.1248/cpb.53.952] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel asymmetric synthesis of the cyclohexane derivative functionalized by some substituents has been developed from the diene acetals (1), prepared from the corresponding diene aldehyde and (+)-hydrobenzoin. The treatment of 1 with NBS in the presence of MeOCH2CH2OH predominantly afforded 2 in a stereoselective manner. Subsequent alkylation of the methoxyethoxy group produced the optically active cyclohexene compounds (3) in good yields. The stereoselective chemical modification of the remaining olefin in 3 was made by OsO4-oxidation.
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Affiliation(s)
- Hiromichi Fujioka
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan.
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Synthesis of enantiomerically pure constrained γ-hydroxy-α-amino acids by directed hydroxylation. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0957-4166(97)00083-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Denmark SE, Marcin LR. Asymmetric Construction of a Quaternary Carbon Center by Tandem [4 + 2]/[3 + 2] Cycloaddition of a Nitroalkene. The Total Synthesis of (−)-Mesembrine. J Org Chem 1997. [DOI: 10.1021/jo970079z] [Citation(s) in RCA: 75] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Scott E. Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801
| | - Lawrence R. Marcin
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801
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Maligres P, Weissman S, Upadhyay V, Cianciosi S, Reamer R, Purick R, Sager J, Rossen K, Eng K, Askin D, Volante R, Reider P. Cyclic imidate salts in acyclic stereochemistry: Diastereoselective syn-epoxidation of 2-alkyl-4-enamides to epoxyamides. Tetrahedron 1996. [DOI: 10.1016/0040-4020(95)01114-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Diastereoselective syn-epoxidation of 2-alkyl-4-enamides to epoxyamides: Synthesis of the Merck HIV-1 protease inhibitor epoxide intermediate. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00273-f] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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