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Sienkiewicz M, Pawelski D, Podgorska K, Lazny R. Retro-aza-Michael reaction in continuous flow. Approaches to synthesis of adaline and euphococcinine related products. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Rodriguez S, Uria U, Reyes E, Prieto L, Rodríguez‐Rodríguez M, Tejero T, Merino P, Vicario JL. The Pseudotransannular Ring Opening of 1‐Aminocyclohept‐4‐ene‐derived Epoxides in the Synthesis of Tropane Alkaloids: Total Synthesis of (±)‐Ferrugine. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sandra Rodriguez
- Department of Organic and Inorganic Chemistry University of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Uxue Uria
- Department of Organic and Inorganic Chemistry University of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Efraim Reyes
- Department of Organic and Inorganic Chemistry University of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Liher Prieto
- Department of Organic and Inorganic Chemistry University of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Marta Rodríguez‐Rodríguez
- Department of Organic and Inorganic Chemistry University of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Tomás Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Universidad de Zaragoza, CSIC 50009 Zaragoza Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) Universidad de Zaragoza 50009 Zaragoza Spain
| | - Jose L. Vicario
- Department of Organic and Inorganic Chemistry University of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
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Rodriguez S, Uria U, Reyes E, Prieto L, Rodríguez-Rodríguez M, Carrillo L, Vicario JL. Enantioselective construction of the 8-azabicyclo[3.2.1]octane scaffold: application in the synthesis of tropane alkaloids. Org Biomol Chem 2021; 19:3763-3775. [PMID: 33949549 DOI: 10.1039/d1ob00143d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 8-azabicyclo[3.2.1]octane scaffold is the central core of the family of tropane alkaloids, which display a wide array of interesting biological activities. As a consequence, research directed towards the preparation of this basic structure in a stereoselective manner has attracted attention from many research groups worldwide across the years. Despite this, most of the approaches rely on the enantioselective construction of an acyclic starting material that contains all the required stereochemical information to allow the stereocontrolled formation of the bicyclic scaffold. As an alternative, there are a number of important methodologies reported in which the stereochemical control is achieved directly in the same transformation that generates the 8-azabicyclo[3.2.1]octane architecture or in a desymmetrization process starting from achiral tropinone derivatives. This review compiles the most relevant achievements in these areas.
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Affiliation(s)
- Sandra Rodriguez
- Department of Organic and Inorganic Chemistry, University of the Basque Country, P. O. Box 644, 48080 Bilbao, Spain.
| | - Uxue Uria
- Department of Organic and Inorganic Chemistry, University of the Basque Country, P. O. Box 644, 48080 Bilbao, Spain.
| | - Efraim Reyes
- Department of Organic and Inorganic Chemistry, University of the Basque Country, P. O. Box 644, 48080 Bilbao, Spain.
| | - Liher Prieto
- Department of Organic and Inorganic Chemistry, University of the Basque Country, P. O. Box 644, 48080 Bilbao, Spain.
| | - Marta Rodríguez-Rodríguez
- Department of Organic and Inorganic Chemistry, University of the Basque Country, P. O. Box 644, 48080 Bilbao, Spain.
| | - Luisa Carrillo
- Department of Organic and Inorganic Chemistry, University of the Basque Country, P. O. Box 644, 48080 Bilbao, Spain.
| | - Jose L Vicario
- Department of Organic and Inorganic Chemistry, University of the Basque Country, P. O. Box 644, 48080 Bilbao, Spain.
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Nodzewska A, Wadolowska A, Podgorska K, Pawelski D, Lazny R. Synthesis of Solid-phase Supported Chiral Amines and Investigation of Stereoselectivity of Aldol Reactions of Amine-free Tropinone Enolate. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190916145332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Seven selected chiral mono-, di-, and tridentate amines supported on insoluble
polymer were effectively prepared from corresponding primary amines or secondary
amino alcohols and Merrifield resin. The reaction of the polymer-supported amines with
excess n-butyllithium gave the corresponding lithium amide bases, which were tested in
the aldol reactions of tropinone with benzaldehyde. The deprotonation reactions were carried
out with or without separation of the lithium enolate from polymer-supported reagents.
Using the procedure with separation of lithium enolate from supported chiral reagent
different results were obtained with or without the addition of LiCl despite the fact
that aggregate formation of Merrifield resin supported Li-amides is hindered. Without the
additive, the aldol products were obtained in low diastereoselectivity and enantioselectivity,
whereas the addition of LiCl resulted in a significant increase of de and ee even when LiCl was added after
the deprotonation step and separation of the chiral amine.
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Affiliation(s)
- Aneta Nodzewska
- Institute of Chemistry, University of Bialystok, Bialystok, Poland
| | | | | | - Damian Pawelski
- Institute of Chemistry, University of Bialystok, Bialystok, Poland
| | - Ryszard Lazny
- Institute of Chemistry, University of Bialystok, Bialystok, Poland
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An Investigation of the Enolization and Isomeric Products Distribution in the Water Promoted Aldol Reaction of Tropinone and Granatanone. J CHEM-NY 2016. [DOI: 10.1155/2016/4674901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The exo,anti/exo,syn-diastereoselectivity of water promoted direct aldol reactions of tropinone and granatanone (pseudopelletierine) is strongly dependent on the amount of water added and aromatic aldehyde used. DFT methods were applied to calculate the free energies of tropinone and granatanone enols, transition states, and isomeric aldol products. A theoretical model was verified by comparison of results from several DFT methods and functionals with experiments. The 6-31g(d)/CPCM method proved most suited to the problem, although all methods tested predicted similar trends. Explicit inclusion of a water molecule bonded to the amino ketones resulted in increased stability of the enol forms. The dependence of the anti/syn-diastereoselectivity on the amount of water used may be rationalized on the basis of change in the polarity of the reaction medium. The predicted stabilities of competing products agreed with experimental results supporting the notion of thermodynamic control. The isomeric products distributions for the aldol reaction of several aromatic aldehydes in solventless (neat) conditions were accurately calculated from free energies of the aldol addition step in the gas phase using B3LYP/6-31g(d) method and in aqueous conditions using the CPCM-B3LYP/6-31g(d) model. Our methodology can be useful for predicting the outcome of this type of aldol reactions.
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Sidorowicz K, Ratkiewicz A, Nodzewska A, Lazny R. Determination of the N-invertomer stereochemistry in N-substituted nortropanones and norgranatanones using computational and NMR methods. CR CHIM 2015. [DOI: 10.1016/j.crci.2014.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nodzewska A, Bokina A, Romanowska K, Lazny R. Environmentally benign diastereoselective synthesis of granatane and tropane aldol derivatives. RSC Adv 2014. [DOI: 10.1039/c4ra02834a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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8
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Deoxygenation at the C3 position of d- and l-arabinofuranose: stereospecific access to enantiomeric cordycepose derivatives. Carbohydr Res 2013; 380:143-8. [DOI: 10.1016/j.carres.2013.07.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/17/2013] [Accepted: 07/31/2013] [Indexed: 11/22/2022]
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9
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Yu Y, Yang XF, Xu CF, Ding CH, Hou XL. Desymmetrization of Bicyclo[3.n.1]-3-one Derivatives by Palladium-Catalyzed Asymmetric Allylic Alkylation. Org Lett 2013; 15:3880-3. [DOI: 10.1021/ol4016207] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Yu
- State Key Laboratory of Organometallic Chemistry, Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiao-Fei Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Chao-Fan Xu
- State Key Laboratory of Organometallic Chemistry, Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Chang-Hua Ding
- State Key Laboratory of Organometallic Chemistry, Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry, Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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Brzezinski K, Lazny R, Nodzewska A, Sidorowicz K. Relative configuration, absolute configuration and absolute structure of three isomeric 8-benzyl-2-[(4-bromophenyl)(hydroxy)methyl]-8-azabicyclo[3.2.1]octan-3-ones. Acta Crystallogr C 2013; 69:303-6. [DOI: 10.1107/s0108270113002503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 01/24/2013] [Indexed: 11/10/2022] Open
Abstract
The title compounds, C21H22BrNO2, are isomeric 8-benzyl-2-[(4-bromophenyl)(hydroxy)methyl]-8-azabicyclo[3.2.1]octan-3-ones. Compound (I), the (±)-exo,syn-(1RS,2SR,5SR,9SR) isomer, crystallizes in the hexagonal space groupR\overline{3}, while compounds (II) [the (+)-exo,anti-(1R,2S,5S,9R) isomer] and (III) [the (±)-exo,anti-(1RS,2SR,5SR,9RS) isomer] crystallize in the orthorhombic space groupsP212121andPna21, respectively. The absolute configuration was determined for enantiomerically pure (II). For the noncentrosymmetric crystal of (III), its absolute structure was established. In the crystal structures of (I) and (II), an intramolecular hydrogen bond is formed between the hydroxy group and the heterocyclic N atom. In the crystal structure of racemic (III), hydrogen-bonded chains of molecules are formedviaintermolecular O—H...O interactions. Additionally, face-to-edge π–π interactions are present in the crystal structures of (I) and (II). In all three structures, the piperidinone rings adopt chair conformations and theN-benzyl substituents occupy the equatorial positions.
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Lazny R, Nodzewska A, Sidorowicz K, Kalicki P. Determination of the relative configuration of tropinone and granatanone aldols by using TBDMS ethers. Beilstein J Org Chem 2012; 8:1877-83. [PMID: 23209525 PMCID: PMC3511025 DOI: 10.3762/bjoc.8.216] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 10/02/2012] [Indexed: 11/23/2022] Open
Abstract
The relative configurations of tert-butyldimethylsilyl (TBDMS) ethers of all four diastereomers of the aldols of tropinone (8-methyl-8-azabicyclo[3.2.1]octan-3-one), as well as of granatanone (9-methyl-9-azabicyclo[3.3.1]nonan-3-one), were determined from NMR data, and from the observed interconversion of the diastereomers (exo,anti to endo,syn and exo,syn to endo,anti). The exo forms invert to endo isomers in the presence of silica gel. The relative configuration of a new isomer of tropinone aldol accessible synthetically through the direct solventless reaction of tropinone and benzaldehyde in the presence of water was determined as exo,syn by comparison of NMR data of the aldol isomers, in particular vicinal coupling constants and shifts corresponding to the side-chain CH group, with data of related TBDMS derivatives and confirmed by single-crystal X-ray diffraction.
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Affiliation(s)
- Ryszard Lazny
- Institute of Chemistry, University of Bialystok, ul. Hurtowa 1, 15-339 Bialystok, Poland
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Lazny R, Ratkiewicz A, Nodzewska A, Wysocka J. A DFT study of the origins of the stereoselectivity in the aldol reaction of bicyclic amino ketones in the presence of water. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Lazny R, Sienkiewicz M, Olenski T, Urbanczyk-Lipkowska Z, Kalicki P. Approaches to the enantioselective synthesis of ferrugine and its analogues. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Lazny R, Ratkiewicz A, Nodzewska A, Wynimko A, Siergiejczyk L. Determination of the N-methyl stereochemistry in tropane and granatane derivatives in solution: a computational and NMR spectroscopic study. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.05.076] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Lazny R, Wolosewicz K, Dauter Z, Brzezinski K. (1RS,2SR,5SR)-9-Benzyl-2-[(1RS)-1-hy-droxy-benz-yl]-9-aza-bicyclo-[3.3.1]nonan-3-one from synchrotron data. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1367. [PMID: 22590261 PMCID: PMC3344499 DOI: 10.1107/s1600536812014754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 04/04/2012] [Indexed: 11/10/2022]
Abstract
In the crystal structure of the racemic title compound, C(22)H(25)NO(2), solved and refined against sychrotron diffraction data, the hy-droxy group and the carbonyl O atom participate in the formation of O-H⋯O hydrogen bonds between pairs of enanti-omers related by a crystallographic centre of symmetry.
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Affiliation(s)
- Ryszard Lazny
- Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - Karol Wolosewicz
- Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - Zbigniew Dauter
- Synchrotron Radiation Research Section, MCL, National Cancer Institute, Argonne National Laboratory, Biosciences Division, Bldg 202, Argonne, IL 60439, USA
| | - Krzysztof Brzezinski
- Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
- Synchrotron Radiation Research Section, MCL, National Cancer Institute, Argonne National Laboratory, Biosciences Division, Bldg 202, Argonne, IL 60439, USA
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Brzezinski K, Lazny R, Sienkiewicz M, Wojtulewski S, Dauter Z. (2R)-8-Benzyl-2-[(S)-hy-droxy(phen-yl)meth-yl]-8-aza-bicyclo-[3.2.1]octan-3-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o149-50. [PMID: 22259435 PMCID: PMC3254493 DOI: 10.1107/s1600536811053190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 12/09/2011] [Indexed: 11/10/2022]
Abstract
The crystal of the title compound, C(21)H(23)NO(2), was chosen from a conglomerate formed by a racemic mixture. An intra-molecular hydrogen bond is formed between hy-droxy group and heterocyclic N atom of the aza-bicyclo-[3.2.1]octan-3-one system. The crystal structure is stabilized by C-H⋯O inter-actions between aliphatic C-H groups and the carbonyl O atom. For the title chiral crystal, the highly redundant and accurate diffraction data set collected with low energy copper radiation gave a Flack parameter of 0.12 (18) for anomalous scattering effects originating from O atoms.
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Affiliation(s)
- Krzysztof Brzezinski
- Synchrotron Radiation Research Section, MCL, National Cancer Institute, Argonne National Laboratory, Biosciences Division, Bldg. 202, Argonne, IL 60439, USA
| | - Ryszard Lazny
- Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - Michal Sienkiewicz
- Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - Sławomir Wojtulewski
- Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - Zbigniew Dauter
- Synchrotron Radiation Research Section, MCL, National Cancer Institute, Argonne National Laboratory, Biosciences Division, Bldg. 202, Argonne, IL 60439, USA
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Lazny R, Wolosewicz K, Zielinska P, Urbanczyk-Lipkowska Z, Kalicki P. Diastereo- and enantioselective aldol reaction of granatanone (pseudopelletierine). Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.096] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Lazny R, Nodzewska A, Tomczuk I. Spontaneous and diastereoselective aldol reactions of cyclic β-amino ketones in the presence of water. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.107] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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