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Yu L, Ding Q, Song C, Chang J. Enantioselective Total Synthesis of (–)-Angustureine. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202101025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Berthold D, Breit B. Asymmetric Total Syntheses of (−)-Angustureine and (−)-Cuspareine via Rhodium-Catalyzed Hydroamination. Org Lett 2019; 22:565-568. [DOI: 10.1021/acs.orglett.9b04334] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dino Berthold
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstr. 21, 79104 Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstr. 21, 79104 Freiburg im Breisgau, Germany
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3
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Davies SG, Fletcher AM, Roberts PM, Thomson JE. The Hancock Alkaloids Angustureine, Cuspareine, Galipinine, and Galipeine: A Review of their Isolation, Synthesis, and Spectroscopic Data. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900493] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Stephen G. Davies
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - Ai M. Fletcher
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - Paul M. Roberts
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - James E. Thomson
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
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Davies SG, Fletcher AM, Houlsby ITT, Roberts PM, Thomson JE, Zimmer D. The Hancock Alkaloids (-)-Cuspareine, (-)-Galipinine, (-)-Galipeine, and (-)-Angustureine: Asymmetric Syntheses and Corrected 1H and 13C NMR Data. JOURNAL OF NATURAL PRODUCTS 2018; 81:2731-2742. [PMID: 30457859 DOI: 10.1021/acs.jnatprod.8b00672] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The asymmetric syntheses of all members of the Hancock alkaloid family based upon a 2-substituted N-methyl-1,2,3,4-tetrahydroquinoline core are delineated. The conjugate addition of enantiopure lithium N-benzyl- N-(α-methyl- p-methoxybenzyl)amide to 5-( o-bromophenyl)- N-methoxy- N-methylpent-2-enamide is used to generate the requisite C-2 stereogenic center of the targets, while an intramolecular Buchwald-Hartwig coupling is used to form the 1,2,3,4-tetrahydroquinoline ring. Late-stage diversification completes construction of the C-2 side chains. Thus, (-)-cuspareine, (-)-galipinine, (-)-galipeine, and (-)-angustureine were prepared in overall yields of 30%, 28%, 15%, and 39%, respectively, in nine steps from commercially available 3-( o-bromophenyl)propanoic acid in all cases. Unambiguously corrected 1H and 13C NMR data for the originally isolated samples of (-)-cuspareine, (-)-galipinine, and (-)-angustureine are also reported, representing a valuable reference resource for these popular synthetic targets.
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Affiliation(s)
- Stephen G Davies
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Ai M Fletcher
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Ian T T Houlsby
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Paul M Roberts
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - James E Thomson
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - David Zimmer
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
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Liao J, Drueckhammer DG. Diastereoselective conjugate addition/cyclization/bromination: Access to four stereocenters in a single step. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Li K, Wang J, Wu K, Zheng D, Zhou X, Han W, Wan N, Cui B, Chen Y. Enantioselective synthesis of 1,2,3,4-tetrahydroquinoline-4-ols and 2,3-dihydroquinolin-4(1H)-ones via a sequential asymmetric hydroxylation/diastereoselective oxidation process using Rhodococcus equi ZMU-LK19. Org Biomol Chem 2018; 15:3580-3584. [PMID: 28177033 DOI: 10.1039/c7ob00151g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A cascade biocatalysis system involving asymmetric hydroxylation and diastereoselective oxidation was developed using Rhodococcus equi ZMU-LK19, which gave chiral 2-substituted-1,2,3,4-tetrahydroquinoline-4-ols (2) (up to 57% isolated yield, 99 : 1 dr, and >99% ee) and chiral 2-substituted-2,3-dihydroquinolin-4(1H)-ones (3) (up to 25% isolated yield, and >99% ee) from (±)-2-substituted-tetrahydroquinolines (1). In addition, a possible mechanism for this cascade biocatalysis was tentatively proposed.
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Affiliation(s)
- Ke Li
- Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China.
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Madhubabu M, Shankar R, Krishna T, Kumar YS, Chiranjeevi Y, Muralikrishna C, Mohan HR, More SS, Rao MB, Akula R. A convergent approach towards the synthesis of the 2-alkyl-substituted tetrahydroquinoline alkaloid (−)-cuspareine. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.10.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Diaz-Muñoz G, Isidorio RG, Miranda IL, de Souza Dias GN, Diaz MAN. A concise and efficient synthesis of tetrahydroquinoline alkaloids using the phase transfer mediated Wittig olefination reaction. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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He Z, Liu H, Qian Q, Lu L, Guo W, Zhang L, Han B. N-methylation of quinolines with CO2 and H2 catalyzed by Ru-triphos complexes. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9024-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Brambilla M, Davies SG, Fletcher AM, Roberts PM, Thomson JE. Asymmetric syntheses of the 1-hydroxymethyl-2-hydroxy substituted pyrrolizidines (−)-macronecine, (−)-petasinecine, (−)-1- epi -macronecine, (+)-1- epi -petasinecine and (+)-2- epi -rosmarinecine. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
Arynes are important and versatile intermediates in a variety of transformations. Commonly used solvents for aryne chemistry include acetonitrile and dichloromethane. Although rarely reported, the reactive nature of aryne intermediates makes them prone to side reactions, which sometimes involve solvent participation. Acetonitrile and dichloromethane are not always innocent solvents and can participate in aryne-based reactions. These results are presented in the context of ongoing mechanistic investigations of the triple aryne-tetrazine reaction.
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Affiliation(s)
- Sung-Eun Suh
- Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - David M Chenoweth
- Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
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12
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Kafka F, Pohl R, Císařová I, Mackman R, Bahador G, Jahn U. N,2,3,4-Tetrasubstituted Pyrrolidines through Tandem Lithium Amide Conjugate Addition/Radical Cyclization/Oxygenation Reactions. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600621] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- František Kafka
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo namesti 2 16610 Prague Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo namesti 2 16610 Prague Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry; Faculty of Science; Charles University in Prague; Albertov 6 12843 Prague Czech Republic
| | - Richard Mackman
- Gilead Sciences, Inc.; 333 Lakeside Drive 94404 Foster City CA USA
| | - Gina Bahador
- Gilead Sciences, Inc.; 333 Lakeside Drive 94404 Foster City CA USA
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo namesti 2 16610 Prague Czech Republic
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Csatayová K, Davies SG, Figuccia AL, Fletcher AM, Ford JG, Lee JA, Roberts PM, Saward BG, Song H, Thomson JE. Asymmetric syntheses of polysubstituted homoprolines and homoprolinols. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Doušová H, Horák R, Růžičková Z, Šimůnek P. An intramolecular C-N cross-coupling of β-enaminones: a simple and efficient way to precursors of some alkaloids of Galipea officinalis. Beilstein J Org Chem 2015; 11:884-92. [PMID: 26124890 PMCID: PMC4464440 DOI: 10.3762/bjoc.11.99] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 04/22/2015] [Indexed: 01/22/2023] Open
Abstract
2-Aroylmethylidene-1,2,3,4-tetrahydroquinolines with the appropriate substituents can be suitable precursors for the synthesis of alkaloids from Galipea officinalis (cuspareine, galipeine, galipinine, angustureine). However, only two, rather low-yielding procedures for their synthesis are described in the literature. We have developed a simple and efficient protocol for an intramolecular, palladium or copper-catalysed amination of both chloro- and bromo-substituted 3-amino-1,5-diphenylpent-2-en-1-ones leading to the above-mentioned tetrahydroquinoline moiety. The methodology is superior to the methods published to date.
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Affiliation(s)
- Hana Doušová
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ 532 10, Pardubice, Czech Republic
| | - Radim Horák
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ 532 10, Pardubice, Czech Republic
| | - Zdeňka Růžičková
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ 532 10, Pardubice, Czech Republic
| | - Petr Šimůnek
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ 532 10, Pardubice, Czech Republic
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Muñoz GD, Dudley GB. Synthesis of 1,2,3,4-Tetrahydroquinolines including Angustureine and Congeneric Alkaloids. A Review. ORG PREP PROCED INT 2015. [DOI: 10.1080/00304948.2015.1025012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Garg Y, Gahalawat S, Pandey SK. An enantioselective approach to 2-alkyl substituted tetrahydroquinolines: total synthesis of (+)-angustureine. RSC Adv 2015. [DOI: 10.1039/c5ra05987a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and highly efficient synthetic approach to enantiopure 2-alkyl substituted tetrahydroquinoline 1 skeleton from aldehydes as starting materials and its application to the total synthesis of (+)-angustureine 2 is described.
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Affiliation(s)
- Yuvraj Garg
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147001
- India
| | - Suraksha Gahalawat
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147001
- India
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Chacko S, Ramapanicker R. Enantiospecific Synthesis of (-)-Cuspareine and (-)-Galipinine. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2112] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shibin Chacko
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur India 208016
| | - Ramesh Ramapanicker
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur India 208016
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20
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Bulman Page PC, Day DP, Chan Y. Enantioselective Epoxidation of Dihydroquinolines by Using Iminium Salt Organocatalysts. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403132] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Davies SG, Fletcher AM, Foster EM, Lee JA, Roberts PM, Thomson JE, Waul MA. Asymmetric syntheses of the methyl glycosides of 2-deoxy-2-aminohexoses: d-allosamine, d-mannosamine, d-idosamine and d-talosamine. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Davies SG, Fletcher AM, Foster EM, Houlsby ITT, Roberts PM, Schofield TM, Thomson JE. The asymmetric syntheses of pyrrolizidines, indolizidines and quinolizidines via two sequential tandem ring-closure/N-debenzylation processes. Org Biomol Chem 2014; 12:9223-35. [DOI: 10.1039/c4ob01737d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Davies SG, Fletcher AM, Frost AB, Roberts PM, Thomson JE. Trading N and O. Part 2: Exploiting aziridinium intermediates for the synthesis of β-hydroxy-α-amino acids. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nieto CT, Díez D, Garrido NM. To be or not to be butterfly: New mechanistic insights in the Aza-Michael asymmetric addition of lithium (R)-N-benzyl-N-(α-methylbenzyl)amide. J Comput Chem 2014; 35:1846-53. [PMID: 25052741 DOI: 10.1002/jcc.23694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/07/2014] [Accepted: 07/09/2014] [Indexed: 11/08/2022]
Abstract
The asymmetric Aza-Michael addition of homochiral lithium benzylamides to α,β-unsaturated esters represents an extended protocol to obtain enantioenriched β-amino esters. An exhaustive mechanistic revision of the originally proposed mechanism is reported, developing a quantum mechanics/molecular mechanics protocol for the asymmetric Aza-Michael reaction of homochiral lithium benzylamides. Explicit and implicit solvent schemes were considered, together with a proper account of long-range dispersion forces, evaluated through a density functional theory benchmark of different functionals. Theoretical results showed that the diastereoselectivity is mainly controlled by the N-α-methylbenzyl moiety placing, deriving a Si/Re 99:1 diastereoselective ratio, in good agreement with reported experimental results. The main transition state geometries are two transition state conformers in a "V-stacked" orientation of the amide's phenyl rings, differing in the tetrahydrofuran molecule arrangement coordinated to the metal center. Extensive conformational sampling and quantum-level refinement give reasonable good speed/accuracy results, allowing this protocol to be extended to other similar Aza-Michael reaction systems.
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Affiliation(s)
- Carlos T Nieto
- Departamento de Química Orgánica, Universidad de Salamanca, Pza de la Merced 1-5, 37007, Salamanca, Spain
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Davies SG, Figuccia AL, Fletcher AM, Roberts PM, Thomson JE. Asymmetric syntheses of 2,5-dideoxy-2,5-imino-d-glucitol [(+)-DGDP] and 1,2,5-trideoxy-1-amino-2,5-imino-d-glucitol [(+)-ADGDP]. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.100] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Yus M, Foubelo F, A. Sirvent J. Enantioselective Synthesis of Tetrahydroquinoline Alkaloids (-)-Angustureine and (-)-Cuspareine from Chiral tert-Butanesulfinyl Imines. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)75] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Davies SG, Fletcher AM, Lee JA, Roberts PM, Souleymanou MY, Thomson JE, Zammit CM. Diastereoselective Ireland–Claisen rearrangements of substituted allyl β-amino esters: applications in the asymmetric synthesis of C(5)-substituted transpentacins. Org Biomol Chem 2014; 12:2702-28. [DOI: 10.1039/c4ob00274a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Davies SG, Fletcher AM, Lee JA, Lorkin TJ, Roberts PM, Thomson JE. A diastereodivergent strategy for the asymmetric syntheses of (−)-martinellic acid and (−)-4-epi-martinellic acid. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Davies SG, Fletcher AM, Frost AB, Lee JA, Roberts PM, Thomson JE. Trading N and O: asymmetric syntheses of β-hydroxy-α-amino acids via α-hydroxy-β-amino esters. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.08.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Davies SG, Foster EM, Lee JA, Roberts PM, Thomson JE. Asymmetric syntheses of dihydroxyhomoprolines via doubly diastereoselective lithium amide conjugate addition reactions. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.096] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Davies SG, Fletcher AM, Lee JA, Lorkin TJA, Roberts PM, Thomson JE. Asymmetric synthesis of (-)-martinellic acid. Org Lett 2013; 15:2050-3. [PMID: 23556476 DOI: 10.1021/ol4007508] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A high-yielding total asymmetric synthesis of (-)-martinellic acid is reported. The conjugate addition of lithium (R)-N-allyl-N-(α-methyl-4-methoxybenzyl)amide to tert-butyl (E)-3-[2'-(N,N-diallylamino)-5'-bromophenyl]propenoate and alkylation of the resultant β-amino ester have been used as the key steps to install the C(9b) and C(3a) stereogenic centers, respectively, and a highly diastereoselective Wittig reaction/intramolecular Michael addition was then used to create the C(4) stereogenic center within this tricyclic molecular architecture.
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Affiliation(s)
- Stephen G Davies
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford , Mansfield Road, Oxford OX1 3TA, UK.
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34
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Kanagaraj K, Pitchumani K. Per-6-amino-β-cyclodextrin as a chiral base catalyst promoting one-pot asymmetric synthesis of 2-aryl-2,3-dihydro-4-quinolones. J Org Chem 2012; 78:744-51. [PMID: 23245355 DOI: 10.1021/jo302173a] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly efficient one-pot synthesis of enantiomerically enriched 2-aryl-2,3-dihydroquinolin-4(1H)-ones has been carried out for the first time using per-6-ABCD as a supramolecular host, chiral base catalyst, and a reusable promoter to give the corresponding scaffold with high yield (up to 99%) and enantiomeric excess (up to 99%). The catalyst is recovered and reused without loss in its activity.
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Davies SG, Lee JA, Roberts PM, Stonehouse JP, Thomson JE. Absolute Configuration Assignment by Asymmetric Syntheses of the Homalium Alkaloids (−)-(R,R,R)-Hoprominol and (−)-(4′S,4″R,2‴R)-Hopromalinol. J Org Chem 2012; 77:9724-37. [DOI: 10.1021/jo301830j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stephen G. Davies
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - James A. Lee
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Paul M. Roberts
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Jeffrey P. Stonehouse
- Novartis Institutes for Biomedical Research, Horsham, West Sussex RH12 5AB,
United Kingdom
| | - James E. Thomson
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
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Davies SG, Lee JA, Roberts PM, Stonehouse JP, Thomson JE. Asymmetric Syntheses of the Homalium Alkaloids (−)-(S,S)-Homaline and (−)-(R,R)-Hopromine. J Org Chem 2012; 77:7028-45. [DOI: 10.1021/jo3012732] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stephen G. Davies
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - James A. Lee
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Paul M. Roberts
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | | | - James E. Thomson
- Department
of Chemistry, Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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37
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The conjugate addition of enantiomerically pure lithium amides as chiral ammonia equivalents part II: 2005−2011. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.08.009] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Davies SG, Fletcher AM, Lv L, Roberts PM, Thomson JE. Asymmetric synthesis of (−)-(R)-sitagliptin. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.04.025] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Davies SG, Huckvale R, Lee JA, Lorkin TJ, Roberts PM, Thomson JE. Asymmetric syntheses of 3,4-syn- and 3,4-anti-3-substituted-4-aminopiperidin-2-ones: application to the asymmetric synthesis of (+)-(3S,4R)-cisapride. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.084] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Taylor LL, Goldberg FW, Hii KK(M. Asymmetric synthesis of 2-alkyl-substituted tetrahydroquinolines by an enantioselective aza-Michael reaction. Org Biomol Chem 2012; 10:4424-32. [DOI: 10.1039/c2ob25122a] [Citation(s) in RCA: 32] [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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Davies SG, Fletcher AM, Hughes DG, Lee JA, Price PD, Roberts PM, Russell AJ, Smith AD, Thomson JE, Williams OM. Asymmetric synthesis of piperidines and octahydroindolizines using a one-pot ring-closure/N-debenzylation procedure. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.038] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Ye KY, He H, Liu WB, Dai LX, Helmchen G, You SL. Iridium-Catalyzed Allylic Vinylation and Asymmetric Allylic Amination Reactions with o-Aminostyrenes. J Am Chem Soc 2011; 133:19006-14. [DOI: 10.1021/ja2092954] [Citation(s) in RCA: 166] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Ke-Yin Ye
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Hu He
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Wen-Bo Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Günter Helmchen
- Organisch-Chemisches Institut der Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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Satyanarayana G, Pflästerer D, Helmchen G. Enantioselective Syntheses of Tetrahydroquinolines Based on Iridium-Catalyzed Allylic Substitutions: Total Syntheses of (+)-Angustureine and (-)-Cuspareine. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100981] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ghorai MK, Nanaji Y, Yadav AK. Ring Opening/C–N Cyclization of Activated Aziridines with Carbon Nucleophiles: Highly Diastereo- and Enantioselective Synthesis of Tetrahydroquinolines. Org Lett 2011; 13:4256-9. [DOI: 10.1021/ol2016077] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Y. Nanaji
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - A. K. Yadav
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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