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Singh R, Kumar S, Patil MT, Sun C, Salunke DB. Post‐Pictet‐Spengler Cyclization (PPSC): A Strategy to Synthesize Polycyclic β‐Carboline‐Derived Natural Products and Biologically Active N‐Heterocycles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000549] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Rahul Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
| | - Sunil Kumar
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
| | - Madhuri T. Patil
- Mehr Chand Mahajan DAV College for Women, Sector 36 Chandigarh 160036 India
| | - Chung‐Ming Sun
- Department of Applied Chemistry National Chiao-Tung University Hsinchu Taiwan
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung 807-08 Taiwan
| | - Deepak B. Salunke
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
- National Interdisciplinary Centre of Vaccine Immunotherapeutics and Antimicrobials Panjab University Chandigarh 160014 India
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2
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Structural Diversity in Ruthenium-Catalyzed Asymmetric Transfer Hydrogenation Reactions. TOP ORGANOMETAL CHEM 2019. [DOI: 10.1007/3418_2019_27] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Megyesi R, Mándi A, Kurtán T, Forró E, Fülöp F. Dynamic Kinetic Resolution of Ethyl 1,2,3,4-Tetrahydro-β-carboline-1-carboxylate: Use of Different Hydrolases for Stereocomplementary Processes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700571] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Rita Megyesi
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
| | - Attila Mándi
- Department of Organic Chemistry; University of Debrecen; P. O. Box 400 4002 Debrecen Hungary
| | - Tibor Kurtán
- Department of Organic Chemistry; University of Debrecen; P. O. Box 400 4002 Debrecen Hungary
| | - Enikő Forró
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
- MTA-SZTE Stereochemistry Research Group; Hungarian Academy of Sciences; Eötvös u. 6 6720 Szeged Hungary
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Demmans KZ, Seo CSG, Lough AJ, Morris RH. From imine to amine: an unexpected left turn. Cis-β iron(ii) PNNP' precatalysts for the asymmetric transfer hydrogenation of acetophenone. Chem Sci 2017; 8:6531-6541. [PMID: 28989679 PMCID: PMC5627452 DOI: 10.1039/c7sc02558k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/13/2017] [Indexed: 11/21/2022] Open
Abstract
A slight change in the iron catalyst structure (amine arm with PEt2 to imine arm with PPh2) results in a complete reversal of the enantioselectivity toward ketone reduction.
A novel PNN ligand bearing an orthophenylene group and a primary amine was synthesized with the aid of a palladium-catalyzed amination and reacted with phosphonium dimers [–PR2CH2CH(OH)–]2[Br]2 R = Et, iPr, Cy, Ph, xylyl, and o-Tol, and [Fe(OH2)6]2+ to produce a new series of cis-β iron(ii) PNNP′ precatalysts cis-β-[Fe(Br)(CO)(PNNP′)]BPh4 as a pair of diastereomers. The more stable orthophenylene amido group was chosen to imitate and replace the enamido moiety of a highly active iron precatalyst for the asymmetric transfer hydrogenation (ATH) of ketones in an attempt to prevent its deactivation caused by reduction of the enamido group. This objective was partially achieved using the complex with a PEt2 group which catalyzed the transfer hydrogenation in isopropanol of 150 000 equivalents of acetophenone to racemic 1-phenylethanol. With a low acetophenone to catalyst ratio of 500 to 1, the catalytic activity was moderate and the enantiomeric excess (ee) of the product 1-phenylethanol ranged surprisingly from 94% (R) to 95% (S) depending on the nature of PR2 and whether the precatalyst contained an imine or amine donor. The amine precatalyst with a PEt2-group produced a more stable hydride species when activated, allowing the reaction mixture to be heated to 75 °C to obtain a TON of 8821 for acetophenone while retaining the high ee of 95% (S). The activation pathway in basic isopropanol (iPrOH) was studied for three precatalysts to elucidate that the cis-β precatalysts rearrange to form trans hydride complexes. The study suggests that the enantioselectivity of these complexes is determined by from which side of the PNNP′ plane the hydride transfer occurs.
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Affiliation(s)
- Karl Z Demmans
- Department of Chemistry , University of Toronto , 80 Saint George Street , Toronto , Ontario M5S 3H6 , Canada .
| | - Chris S G Seo
- Department of Chemistry , University of Toronto , 80 Saint George Street , Toronto , Ontario M5S 3H6 , Canada .
| | - Alan J Lough
- Department of Chemistry , University of Toronto , 80 Saint George Street , Toronto , Ontario M5S 3H6 , Canada .
| | - Robert H Morris
- Department of Chemistry , University of Toronto , 80 Saint George Street , Toronto , Ontario M5S 3H6 , Canada .
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5
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Wills M. Imino Transfer Hydrogenation Reductions. Top Curr Chem (Cham) 2016; 374:14. [DOI: 10.1007/s41061-016-0013-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 02/13/2016] [Indexed: 10/22/2022]
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6
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Perez M, Wu Z, Scalone M, Ayad T, Ratovelomanana-Vidal V. Enantioselective Synthesis of 1-Aryl-Substituted Tetrahydroisoquinolines Through Ru-Catalyzed Asymmetric Transfer Hydrogenation. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500951] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Hu S, Wang B, Zhang Y, Tang W, Fang M, Lu T, Du D. N-Heterocyclic carbene-catalyzed annulation of cyclic β-enamino esters with enals: access to functionalized indolo[2,3-a]quinolizidines. Org Biomol Chem 2015; 13:4661-7. [DOI: 10.1039/c5ob00176e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel synthetic approach to functionalized indolo[2,3-a]quinolizidines is developed via an N-heterocyclic carbene-catalyzed annulation of cyclic β-enamino esters with enals.
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Affiliation(s)
- Shihe Hu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Bingyang Wang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Yu Zhang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Weifang Tang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Mengyuan Fang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
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8
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Wei J, Zhang X, Zhang X, Zhao Y, Li R, Yang Q. Facile Synthesis of Hybrid Core-Shell Nanospheres for the Asymmetric Transfer Hydrogenation of Aromatic Ketones. ChemCatChem 2014. [DOI: 10.1002/cctc.201301011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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9
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Verzijl GKM, de Vries AHM, de Vries JG, Kapitan P, Dax T, Helms M, Nazir Z, Skranc W, Imboden C, Stichler J, Ward RA, Abele S, Lefort L. Catalytic Asymmetric Reduction of a 3,4-Dihydroisoquinoline for the Large-Scale Production of Almorexant: Hydrogenation or Transfer Hydrogenation? Org Process Res Dev 2013. [DOI: 10.1021/op400268f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - Peter Kapitan
- DSM Fine Chemicals Austria, St. Peter Strasse 25, 4021 Linz, Austria
| | - Thomas Dax
- DSM Fine Chemicals Austria, St. Peter Strasse 25, 4021 Linz, Austria
| | - Matthias Helms
- DSM Fine Chemicals Austria, St. Peter Strasse 25, 4021 Linz, Austria
| | - Zarghun Nazir
- DSM Fine Chemicals Austria, St. Peter Strasse 25, 4021 Linz, Austria
| | - Wolfgang Skranc
- DSM Fine Chemicals Austria, St. Peter Strasse 25, 4021 Linz, Austria
| | - Christoph Imboden
- Actelion Pharmaceuticals Ltd., Gewerbestrasse 16, 4123 Allschwil, Switzerland
| | - Juergen Stichler
- Actelion Pharmaceuticals Ltd., Gewerbestrasse 16, 4123 Allschwil, Switzerland
| | - Richard A. Ward
- GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage SG1 2NY, United Kingdom
| | - Stefan Abele
- Actelion Pharmaceuticals Ltd., Gewerbestrasse 16, 4123 Allschwil, Switzerland
| | - Laurent Lefort
- DSM Innovative Synthesis BV, P.O. Box 18, 6160 MD Geleen, The Netherlands
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10
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Liu Y, Wang Q, Zhang Y, Huang J, Nie L, Chen J, Cao W, Wu X. Enantioselective synthesis of indoloquinolizidines via asymmetric catalytic hydrogenation/lactamization of imino diesters. J Org Chem 2013; 78:12009-17. [PMID: 24195678 DOI: 10.1021/jo4020547] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have developed a highly efficient cascade sequence for asymmetric synthesis of indoloquinolizidines with absolute control of cis-H2/H12b relative geometry in good to excellent yields and excellent enantioselectivities. This cascade was triggered by the Ru(II)-TsDPEN-catalyzed asymmetric transfer hydrogenation of imino diesters, with subsequent spontaneous lactamization with discrimination between the two diastereotopic 2-alkoxy-2-oxoethyl groups. The synthetic utility of this strategy was demonstrated by the asymmetric preparation of dihydrocorynantheol, geissoschizol, and isogeissoschizol.
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Affiliation(s)
- Yong Liu
- Department of Chemistry, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
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11
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Singh TP, Bhattarcharya S, Singh OM. Indium/TFA-Catalyzed Synthesis of Tetracyclic [6,5,5,6] Indole Ring, via a Tandem Cycloannulation of β-Oxodithioester with Tryptamine. Org Lett 2013; 15:1974-7. [DOI: 10.1021/ol400644m] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thokchom Prasanta Singh
- Department of Chemistry, Manipur University, Canchipur-795003, Manipur, India, and Department of Chemistry, Pondicherry University, Kalapet-605014, Puducherry, India
| | - Suman Bhattarcharya
- Department of Chemistry, Manipur University, Canchipur-795003, Manipur, India, and Department of Chemistry, Pondicherry University, Kalapet-605014, Puducherry, India
| | - Okram Mukherjee Singh
- Department of Chemistry, Manipur University, Canchipur-795003, Manipur, India, and Department of Chemistry, Pondicherry University, Kalapet-605014, Puducherry, India
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12
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Pesnot T, Gershater MC, Ward JM, Hailes HC. The Catalytic Potential ofCoptis japonicaNCS2 Revealed - Development and Utilisation of a Fluorescamine-Based Assay. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200641] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Enantioselective total synthesis of (S)-(+)-lennoxamine through asymmetric hydrogenation mediated by l-proline-tetrazole ruthenium catalyst. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Ružič M, Pečavar A, Prudič D, Kralj D, Scriban C, Zanotti-Gerosa A. The Development of an Asymmetric Hydrogenation Process for the Preparation of Solifenacin. Org Process Res Dev 2012. [DOI: 10.1021/op3000543] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miloš Ružič
- Krka, d.d., Novo Mesto, Šmarješka
cesta 6, 8501 Novo Mesto, Slovenia
| | - Anica Pečavar
- Krka, d.d., Novo Mesto, Šmarješka
cesta 6, 8501 Novo Mesto, Slovenia
| | - Darja Prudič
- Krka, d.d., Novo Mesto, Šmarješka
cesta 6, 8501 Novo Mesto, Slovenia
| | - David Kralj
- Krka, d.d., Novo Mesto, Šmarješka
cesta 6, 8501 Novo Mesto, Slovenia
| | - Corina Scriban
- Johnson Matthey, Catalysis and Chiral
Technologies, Unit 28, Cambridge Science Park,
Cambridge CB4 0FP, United Kingdom
| | - Antonio Zanotti-Gerosa
- Johnson Matthey, Catalysis and Chiral
Technologies, Unit 28, Cambridge Science Park,
Cambridge CB4 0FP, United Kingdom
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15
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Domínguez G, Pérez‐Castells J. Chemistry of β‐Carbolines as Synthetic Intermediates. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100931] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gema Domínguez
- Departamento de Química, Facultad de Farmacia, Universidad San Pablo‐CEU, Urb. Montepríncipe, 28668 Boadilla del Monte, Madrid, Spain, Fax: +34‐913‐510496
| | - Javier Pérez‐Castells
- Departamento de Química, Facultad de Farmacia, Universidad San Pablo‐CEU, Urb. Montepríncipe, 28668 Boadilla del Monte, Madrid, Spain, Fax: +34‐913‐510496
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Wu X, Nie L, Fang H, Chen J, Cao W, Zhao G. Organocatalyzed Cascade Reactions of Cyclic β-Enamino Esters and α,β-Unsaturated Aldehydes Leading to Indoloquinolizidines and Benzoquinolizidines. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Václavík J, Kačer P, Kuzma M, Červený L. Opportunities offered by chiral η⁶-arene/N-arylsulfonyl-diamine-RuII catalysts in the asymmetric transfer hydrogenation of ketones and imines. Molecules 2011; 16:5460-95. [PMID: 21712760 PMCID: PMC6264677 DOI: 10.3390/molecules16075460] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 06/14/2011] [Accepted: 06/17/2011] [Indexed: 11/22/2022] Open
Abstract
Methods for the asymmetric transfer hydrogenation (ATH) of ketones and imines are still being intensively studied and developed. Of foremost interest is the use of Noyori's [RuCl(η⁶-arene)(N-TsDPEN)] complexes in the presence of a hydrogen donor (i-PrOH, formic acid). These complexes have found numerous practical applications and have been extensively modified. The resulting derivatives have been heterogenized, used in ATH in water or ionic liquids and even some attempts have been made to approach the properties of biocatalysts. Therefore, an appropriate modification of the catalyst that suits the specific requirements for the reaction conditions is very often readily available. The mechanism of the reaction has also been explored to a great extent. Model substrates, acetophenone (a ketone) and 6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline (an imine), are both reduced by this Ru catalytic system with almost perfect selectivity. However, in each case the major product is a different enantiomer (S- for an alcohol, R- for an amine when the S,S-catalyst is used), which demanded an in-depth mechanistic investigation. Full-scale molecular modelling of this system enabled us to visualize the plausible 3D structures of the transition states, allowing the proposition of a viable explanation of previous experimental findings.
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Affiliation(s)
- Jiří Václavík
- Department of Organic Technology, Institute of Chemical Technology, Technická 5, CZ-166 28 Prague, Czech Republic
| | - Petr Kačer
- Department of Organic Technology, Institute of Chemical Technology, Technická 5, CZ-166 28 Prague, Czech Republic
| | - Marek Kuzma
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20, Prague, Czech Republic
| | - Libor Červený
- Department of Organic Technology, Institute of Chemical Technology, Technická 5, CZ-166 28 Prague, Czech Republic
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Priebbenow DL, Pfeffer FM, Stewart SG. A One-Pot, Three-Component Approach to Functionalised Tetrahydroisoquinolines Using Domino Heck-aza-Michael Reactions. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001621] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Shirakawa S, Liu K, Ito H, Maruoka K. Catalytic asymmetric synthesis of 1,1-disubstituted tetrahydro-β-carbolines by phase-transfer catalyzed alkylations. Chem Commun (Camb) 2011; 47:1515-7. [DOI: 10.1039/c0cc04447d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Singh V, Hutait S, Batra S. BaylisâHillman Reaction of 1-Formyl-β-carboline: One-Step Synthesis of the Canthin-6-one Framework by an Unprecedented Cascade Cyclization Reaction. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900962] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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da Silva WA, Rodrigues MT, Shankaraiah N, Ferreira RB, Andrade CKZ, Pilli RA, Santos LS. Novel Supramolecular Palladium Catalyst for the Asymmetric Reduction of Imines in Aqueous Media. Org Lett 2009; 11:3238-41. [DOI: 10.1021/ol9011772] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wender A. da Silva
- Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Universidad de Talca, Talca, PO Box 747, Talca, Chile, Institute of Chemistry, Universidade de Brasília, UnB, Brasília, Brazil, and Institute of Chemistry, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | - Manoel T. Rodrigues
- Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Universidad de Talca, Talca, PO Box 747, Talca, Chile, Institute of Chemistry, Universidade de Brasília, UnB, Brasília, Brazil, and Institute of Chemistry, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | - N. Shankaraiah
- Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Universidad de Talca, Talca, PO Box 747, Talca, Chile, Institute of Chemistry, Universidade de Brasília, UnB, Brasília, Brazil, and Institute of Chemistry, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | - Renan B. Ferreira
- Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Universidad de Talca, Talca, PO Box 747, Talca, Chile, Institute of Chemistry, Universidade de Brasília, UnB, Brasília, Brazil, and Institute of Chemistry, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | - Carlos Kleber Z. Andrade
- Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Universidad de Talca, Talca, PO Box 747, Talca, Chile, Institute of Chemistry, Universidade de Brasília, UnB, Brasília, Brazil, and Institute of Chemistry, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | - Ronaldo A. Pilli
- Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Universidad de Talca, Talca, PO Box 747, Talca, Chile, Institute of Chemistry, Universidade de Brasília, UnB, Brasília, Brazil, and Institute of Chemistry, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | - Leonardo S. Santos
- Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Universidad de Talca, Talca, PO Box 747, Talca, Chile, Institute of Chemistry, Universidade de Brasília, UnB, Brasília, Brazil, and Institute of Chemistry, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
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Martins JED, Clarkson GJ, Wills M. Ru(II) Complexes of N-Alkylated TsDPEN Ligands in Asymmetric Transfer Hydrogenation of Ketones and Imines. Org Lett 2009; 11:847-50. [DOI: 10.1021/ol802801p] [Citation(s) in RCA: 148] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Guy J. Clarkson
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Martin Wills
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
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Paál TA, Forró E, Fülöp F, Liljeblad A, Kanerva LT. Lipase-catalyzed kinetic resolution of 1,2,3,4-tetrahydroisoquinoline-1-acetic acid esters. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.11.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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26
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Ohba M, Natsutani I, Sakuma T. Intramolecular Diels–Alder reactions of oxazole–olefins: synthesis of the Rauwolfia alkaloids suaveoline and norsuaveoline. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.070] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Werner F, Blank N, Opatz T. Synthesis of (–)-(S)-Norlaudanosine, (+)-(R)-O,O-Dimethylcoclaurine, and (+)-(R)-Salsolidine by Alkylation of an α-Aminonitrile. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700261] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Szawkało J, Czarnocki SJ, Zawadzka A, Wojtasiewicz K, Leniewski A, Maurin JK, Czarnocki Z, Drabowicz J. Enantioselective synthesis of some tetrahydroisoquinoline and tetrahydro-β-carboline alkaloids. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.01.014] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
An asymmetric formal synthesis of fasicularin (1) is described. This natural product, isolated from the extracts of the marine invertebrate Nephteis fasicularis, has shown modest cytotoxicity towards Vero cells. Fasicularin is among only two members of the cylindricine family of natural products, along with lepadiformine (2), to possess a trans A-B ring junction. Key steps of this approach to 1 involve a siloxy-epoxide semipinacol rearrangement of 5 to 6, a B-alkyl Suzuki-Miyaura coupling reaction by using enol trifluoromethanesulfonate 19 and a substrate-directed hydrogenation reaction of 24. This formal synthesis also highlights the difficulty in the incorporation of the thiocyanate functionality present in 1.
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Roszkowski P, Maurin JK, Czarnocki Z. Enantioselective synthesis of (R)-(−)-praziquantel (PZQ). ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.04.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Saha B, Kumar R, Maulik PR, Kundu B. Synthesis of fused polycyclic nitrogen-containing heterocycles via cascade cyclization. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.02.072] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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32
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Wu J, Wang F, Ma Y, Cui X, Cun L, Zhu J, Deng J, Yu B. Asymmetric transfer hydrogenation of imines and iminiums catalyzed by a water-soluble catalyst in water. Chem Commun (Camb) 2006:1766-8. [PMID: 16609798 DOI: 10.1039/b600496b] [Citation(s) in RCA: 172] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first asymmetric transfer hydrogenation of cyclic imines and iminiums in water was successfully performed in high yields and enantioselectivities with sodium formate as the hydrogen source and CTAB as an additive catalyzed by a water-soluble and recyclable ruthenium(II) complex of the ligand (R,R)-2.
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Affiliation(s)
- Jiashou Wu
- Key Laboratory of Asymmetric & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.
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33
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Sunder-Plassmann N, Sarli V, Gartner M, Utz M, Seiler J, Huemmer S, Mayer TU, Surrey T, Giannis A. Synthesis and biological evaluation of new tetrahydro-β-carbolines as inhibitors of the mitotic kinesin Eg5. Bioorg Med Chem 2005; 13:6094-111. [PMID: 16084101 DOI: 10.1016/j.bmc.2005.06.027] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2005] [Revised: 06/05/2005] [Accepted: 06/10/2005] [Indexed: 10/25/2022]
Abstract
The mitotic kinesin Eg5 (or KSP) is a crucial player in the development and function of the mitotic spindle. Inhibition of this protein leads to cell cycle arrest and apoptosis without interfering with other microtubule-dependent processes. Therefore, it is a potential target in cancer therapy. Here, we report the synthesis and biological evaluation of a small library of molecules based on the structure of the known Eg5 inhibitor HR22C16. One of these derivatives (compound trans-24) proved to be a potent and specific Eg5 inhibitor.
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Affiliation(s)
- Nils Sunder-Plassmann
- University of Leipzig, Institute for Organic Chemistry, Johannisallee 29, 04103 Leipzig, Germany
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Enantioselective Synthesis of Some Tetracyclic Isoquinoline Alkaloids by Asymmetric Transfer Hydrogenation Catalysed by a Chiral Ruthenium Complex. MONATSHEFTE FUR CHEMIE 2005. [DOI: 10.1007/s00706-005-0341-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Kirkham JE, Courtney TD, Lee V, Baldwin JE. Asymmetric synthesis of cytotoxic sponge metabolites R-strongylodiols A and B and an analogue. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.05.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Kinderman SS, Wekking MMT, van Maarseveen JH, Schoemaker HE, Hiemstra H, Rutjes FPJT. Catalytic N-Sulfonyliminium Ion-Mediated Cyclizations to α-Vinyl-Substituted Isoquinolines and β-Carbolines and Applications in Metathesis. J Org Chem 2005; 70:5519-27. [PMID: 15989333 DOI: 10.1021/jo050503t] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Catalytic Sn(OTf)2-induced cyclization of linear, aryl-containing allylic N,O-acetals produced vinyl-substituted tetrahydroisoquinolines and tetrahydro-1H-beta-carbolines. The usefulness of the vinyl moiety in the resulting products was demonstrated via the synthesis of various key building blocks for alkaloid structures. The alpha-vinyl moiety was utilized in a [2,3] sigmatropic rearrangement, in ring-closing metathesis and a cross-metathesis-based synthesis of vincantril, an antianoxia agent, and a synthetic member of the vincamine type natural products.
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Affiliation(s)
- Sape S Kinderman
- J. H. van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 129, NL-1018 WS Amsterdam, The Netherlands
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37
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Roszkowski P, Wojtasiewicz K, Leniewski A, Maurin JK, Lis T, Czarnocki Z. Enantioselective synthesis of 1-substituted tetrahydro-β-carboline derivatives via the asymmetric transfer hydrogenation. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2005.01.044] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Williams GD, Wade CE, Wills M. One-pot formation of nitrogen-containing heterocyclic ring systems using a deprotection–cyclisation–asymmetric reduction sequence. Chem Commun (Camb) 2005:4735-7. [PMID: 16175309 DOI: 10.1039/b509231k] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot sequence of amine deprotection, intramolecular C=N bond formation and subsequent asymmetric reduction may be promoted by a ruthenium catalyst.
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Affiliation(s)
- Glynn D Williams
- Department of Chemistry, University of Warwick, Coventry, UK CV4 7AL
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39
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Chern MS, Shih YK, Dewang PM, Li WR. Traceless Solid-Phase Synthesis of Carbolinones. ACTA ACUST UNITED AC 2004; 6:855-8. [PMID: 15530109 DOI: 10.1021/cc049876i] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Meei-Shiou Chern
- Department of Chemistry, National Central University, Chung-Li, 32054, Taiwan
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40
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Santos LS, Pilli RA, Rawal VH. Enantioselective total syntheses of (+)-arborescidine A, (-)-arborescidine B, and (-)-arborescidine C. J Org Chem 2004; 69:1283-9. [PMID: 14961682 DOI: 10.1021/jo035165f] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Described are the first enantioselective total syntheses of (+)-arborescidine A ((+)-1), (-)-arborescidine B ((-)-2), and (-)-arborescidine C ((-)-3), via routes that proceeded in five steps and 50% overall yield, eight steps and 61% overall yield, and nine steps and 51% overall yield, respectively, from 6-bromotryptamine (7). The syntheses feature the use of the Noyori catalytic asymmetric hydrogen-transfer reaction to introduce chirality in dihydro-beta-carbolines 6 and 8. On the basis of an ample precedent from Noyori's work, the reduction produces dihydro-beta-carbolines, and ultimately the natural products, possessing the R absolute configuration. The synthetic arborescidines displayed optical rotations that were opposite in sign those of the natural products, thereby supporting the S configuration for natural arborescidines A (1) and B (2) and the (3S,17S) configuration for natural arborescidine C (3). Our results are in agreement with the initial stereochemical assignment by Païs and co-workers, and are counter to their recently revised assignment.
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41
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T. Wanner K, Weber U, Hoesl C, Ponikwar W, Suter M, Nöth H. Stereoselective Synthesis of 1-Substi- tuted 1,2,3,4-Tetrahydro-b-carbolines by Asymmetric Electrophilic a-Amido- alkylation Reactions. HETEROCYCLES 2004. [DOI: 10.3987/com-04-10213] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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42
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Solis-Maldonado C, Quintanilla-Licea R, Tamez-Guerra R, Rodríguez-Padilla C, Gomez-Flores R. Differential effects of synthetic indoloquinolizines on in vitro rat lymphocyte and macrophage functions. Int Immunopharmacol 2003; 3:1261-71. [PMID: 12890424 DOI: 10.1016/s1567-5769(03)00080-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Indoloquinolizines are natural alkaloid indole products grouped as beta-carbolines. These compounds are commonly associated with neurological activities, but little is known about their role as immunomodulating agents. The present study was undertaken to evaluate the effects of synthetic indoloquinolizines on in vitro parameters of rat lymphocyte and macrophage functions. It was observed that proliferation of thymic lymphocytes was significantly (p<0.05) increased (20-30% increase) by dihydro-indoloquinolizinium chloride (2). dihydro-indoloquinolizinyl-ethanone (3). and dimeric dihydro-indoloquinolizinium dichloride (6). whereas dimeric indoloquinolizine (7). caused up to 40% increase in lymphoproliferation at concentrations ranging from 10(-11) to 10(-5) M, compared with untreated control. In contrast, indoloquinolizinium chloride (4) and indoloquinolizine (5). were toxic for lymphocytes at concentrations from 10(-9) to 10(-5) M, and compounds 6 and 7 were toxic at 10(-5) M. In addition, nitric oxide production by LPS-treated peritoneal macrophages was significantly (p<0.05) increased (up to 30% increase) by compounds 4 and 5 at concentrations of 10(-11) to 10(-5) M, and 10(-5) M, respectively; however, compounds 6 and 7 were toxic for macrophages at all concentrations tested. Furthermore, TNF-alpha production was also significantly increased (p<0.01) by compounds 4 and 5 (up to 30-fold increase) compared with untreated control. These novel synthetic indoloquinolizines could serve as immunotherapeutic agents by selectively increasing the pool of activated T lymphocytes or stimulating macrophage functions, with potential use in the treatment of infectious diseases including AIDS and cancer.
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Affiliation(s)
- Carolina Solis-Maldonado
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, NL, Mexico
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43
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Itoh T, Miyazaki M, Ikeda S, Nagata K, Yokoya M, Matsuya Y, Enomoto Y, Ohsawa A. A general method for the asymmetric synthesis of both enantiomers of 1-substituted 1,2,3,4-tetrahydro-β-carbolines employing pyroglutamic acid derivatives as chiral auxiliaries. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00420-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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44
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Vicario JL, Badı́a D, Carrillo L, Anakabe E. A general procedure for the asymmetric synthesis of 3-aryl-1,2,3,4-tetrahydroisoquinolines. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0957-4166(02)00821-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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45
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Itoh T, Matsuya Y, Enomoto Y, Ohsawa A. Preparation of both enantiomers of 1-allyl-1,2,3,4-tetrahydro-β-carboline using allyltin reagents and a chiral auxiliary derived from l-proline. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00684-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Tietze LF, Evers H, Töpken E. Ein neues Konzept der kombinatorischen Chemie in Lösung mit den Vorteilen der Festphasensynthese: Bildung von N-Betainen durch Mehrkomponenten-Domino-Reaktionen. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20010302)113:5<927::aid-ange927>3.0.co;2-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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47
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Tietze LF, Evers H, Töpken E. A Novel Concept in Combinatorial Chemistry in Solution with the Advantages of Solid-Phase Synthesis: Formation of N-Betaines by Multicomponent Domino Reactions. Angew Chem Int Ed Engl 2001; 40:903-905. [DOI: 10.1002/1521-3773(20010302)40:5<903::aid-anie903>3.0.co;2-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2000] [Indexed: 11/07/2022]
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48
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Five Membered Ring Systems: Pyrroles and Benzo Derivatives. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0959-6380(01)80008-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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49
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Quintanilla-Licea R, Teuber HJ. Review on Reactions of Acetylacetaldehyde with Aromatic and Biogenic Amines and Indoles — Synthesis of Heterocycles via Hydroxymethylene Ketones. HETEROCYCLES 2001. [DOI: 10.3987/rev-01-539] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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