1
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Háznagy MB, Csámpai A, Ugrai I, Molnár B, Haukka M, Szakonyi Z. Stereoselective Synthesis and Catalytical Application of Perillaldehyde-Based 3-Amino-1,2-diol Regioisomers. Int J Mol Sci 2024; 25:4325. [PMID: 38673908 PMCID: PMC11050431 DOI: 10.3390/ijms25084325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/06/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
A library of regioisomeric monoterpene-based aminodiols was synthesised and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. The synthesis of the first type of aminodiols was achieved starting from (-)-8,9-dihydroperillaldehyde via reductive amination, followed by Boc protection and dihydroxylation with the OsO4/NMO system. Separation of formed stereoisomers resulted in a library of aminodiol diastereoisomers. The library of regioisomeric analogues was obtained starting from (-)-8,9-dihydroperillic alcohol, which was transformed into a mixture of allylic trichloroacetamides via Overman rearrangement. Changing the protecting group to a Boc function, the protected enamines were subjected to dihydroxylation with the OsO4/NMO system, leading to a 71:16:13 mixture of diastereoisomers, which were separated, affording the three isomers in isolated form. The obtained primary aminodiols were transformed into secondary derivatives. The regioselectivity of the ring closure of the N-benzyl-substituted aminodiols with formaldehyde was also investigated, resulting in 1,3-oxazines in an exclusive manner. To explain the stability difference between diastereoisomeric 1,3-oxazines, a series of comparative theoretical modelling studies was carried out. The obtained potential catalysts were applied in the reaction of aromatic aldehydes and diethylzinc with moderate to good enantioselectivities (up to 94% ee), whereas the opposite chiral selectivity was observed between secondary aminodiols and their ring-closed 1,3-oxazine analogues.
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Affiliation(s)
- Márton Benedek Háznagy
- Institute of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary;
- Institute of Pharmaceutical Chemistry, Interdisciplinary Excellence Center, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary;
| | - Antal Csámpai
- Institute of Chemistry, Eötvös Loránd University, P.O. Box 32, H-1518 Budapest, Hungary;
| | - Imre Ugrai
- Institute of Pharmaceutical Chemistry, Interdisciplinary Excellence Center, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary;
| | - Barnabás Molnár
- Department of Molecular and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm Tér 7-8, H-6720 Szeged, Hungary;
| | - Matti Haukka
- Department of Chemistry, University of Jyväskylä, P.O. Box 35, 40351 Jyväskylä, Finland;
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, Interdisciplinary Excellence Center, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary;
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2
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Bai D, Schelz Z, Erdős D, Kis AK, Nagy V, Zupkó I, Balogh GT, Szakonyi Z. Stereoselective Synthesis and Antiproliferative Activities of Tetrafunctional Diterpene Steviol Derivatives. Int J Mol Sci 2023; 24:ijms24021121. [PMID: 36674639 PMCID: PMC9861858 DOI: 10.3390/ijms24021121] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
A new family of diterpene-type aminotriol derivatives has been synthesised from stevioside in a stereoselective manner. The key intermediate spiro-epoxide was prepared through the methyl ester of the allilyc diol derived from steviol. The oxirane ring was opened with primary and secondary amines, providing a versatile library of aminotriols. The corresponding primary aminotriol was formed by palladium-catalysed hydrogenation, and an N,O-heterocyclic compound was synthesised in a regioselective reaction. All new compounds were characterised by 1D- and 2D-NMR techniques and HRMS measurements. In our in vitro investigations, we found that the aromatic N-substituted derivatives exhibited high inhibition of cell growth on human cancer cell lines (HeLa, SiHa, A2780, MCF-7 and MDA-MB-231). The antiproliferative activities were assayed by the MTT method. Furthermore, the introduction of an additional hydroxy group slightly increased the biological activity. The drug-likeness of the compounds was assessed by in silico and experimental physicochemical characterisations, completed by kinetic aqueous solubility and in vitro intestinal-specific parallel artificial membrane permeability assay (PAMPA-GI) measurements.
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Affiliation(s)
- Dorottya Bai
- Interdisciplinary Excellence Center, Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
| | - Zsuzsanna Schelz
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
| | - Dóra Erdős
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Muegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Anna K. Kis
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Muegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Viktória Nagy
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
| | - István Zupkó
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
- Interdisciplinary Centre of Natural Products, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
| | - György T. Balogh
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Muegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Zsolt Szakonyi
- Interdisciplinary Excellence Center, Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
- Interdisciplinary Centre of Natural Products, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary
- Correspondence: ; Tel.: +36-62-546-809
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3
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Raji M, Le TM, Huynh T, Szekeres A, Nagy V, Zupkó I, Szakonyi Z. Divergent Synthesis, Antiproliferative and Antimicrobial Studies of 1,3-Aminoalcohol and 3-Amino-1,2-Diol Based Diaminopyrimidines. Chem Biodivers 2022; 19:e202200077. [PMID: 35349207 DOI: 10.1002/cbdv.202200077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/18/2022] [Indexed: 12/22/2022]
Abstract
A series of novel diaminopyrimidines containing pinane moieties were synthesized via an efficient methodology starting from pinane-based aminoalcohols, aminodiols and 2,4-dichloropyrimidines. Bioassay tests demonstrated that compound 18a displayed much stronger antiproliferative activities against four human cancer cell lines (HeLa, Siha, MDA-MB-231, MCF-7 and A2780) than positive control cisplatin. In particular, compound 22a was found to be selective in inhibiting HeLa cell proliferation with cancer cell growth inhibition values higher than 95 %. Moreover, the in vitro screening of prepared compounds against different bacterial and fungal strains is reported. The results revealed that 12b and 17a, the most promising compounds, displayed selective inhibition for the Gram-positive bacteria (B. subtilis and S. aureus) with percent inhibition values ranging from 75 to 95 % at 10 μg/mL concentration. Both selective inhibition and the in vitro activity values demonstrated that these compounds have the potential to be developed into clinically important therapeutic choices for the treatment of infections caused by B. subtilis and S. aureus.
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Affiliation(s)
- Mounir Raji
- Institute of Pharmaceutical Chemistry, University of Szeged, 6720, Szeged, Eötvös u. 6, Hungary
| | - Tam Minh Le
- Institute of Pharmaceutical Chemistry, University of Szeged, 6720, Szeged, Eötvös u. 6, Hungary.,Stereochemistry Research Group of the Hungarian Academy of Sciences, 6720, Szeged, Eötvös u. 6, Hungary
| | - Thu Huynh
- Department of Microbiology, University of Szeged, 6726, Szeged, Közép fasor 52, Hungary
| | - András Szekeres
- Department of Microbiology, University of Szeged, 6726, Szeged, Közép fasor 52, Hungary
| | - Viktória Nagy
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, 6720, Szeged, Eötvös utca 6, Hungary
| | - István Zupkó
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, 6720, Szeged, Eötvös utca 6, Hungary.,Interdisciplinary Center of Natural Products, University of Szeged, 6720, Szeged, Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, 6720, Szeged, Eötvös u. 6, Hungary.,Interdisciplinary Center of Natural Products, University of Szeged, 6720, Szeged, Hungary
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4
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Synthesis and Investigation of Pinane-Based Chiral Tridentate Ligands in the Asymmetric Addition of Diethylzinc to Aldehydes. Catalysts 2020. [DOI: 10.3390/catal10050474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A library of pinane-based chiral aminodiols, derived from natural (−)-β-pinene, were prepared and applied as chiral catalysts in the addition of diethylzinc to aldehydes. (−)-β-Pinene was reacted to provide 3-methylenenopinone, followed by a reduction of the carbonyl function to give a key allylic alcohol intermediate. Stereoselective epoxidation of the latter and subsequent ring opening of the resulting oxirane with primary and secondary amines afforded aminodiols. The regioselectivity of the ring closure of the N-substituted secondary aminodiols with formaldehyde was examined and exclusive formation of oxazolidines was observed. Treatment of the allylic alcohol with benzyl bromide provided the corresponding O-benzyl derivative, which was transformed into O-benzyl aminodiols by aminolysis. Ring closure of the N-isopropyl aminodiol derivative with formaldehyde resulted in spirooxazolidine. The obtained potential catalysts were applied in the reaction of both aromatic and aliphatic aldehydes to diethylzinc providing moderate to good enantioselectivities (up to 87% ee). Through the use of molecular modeling at an ab initio level, this phenomenon was interpreted in terms of competing reaction pathways. Molecular modeling at the RHF/LANL2DZ level of theory was successfully applied for interpretation of the stereochemical outcome of the reactions leading to display excellent (R) enantioselectivity in the examined transformation.
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5
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Le TM, Huynh T, Endre G, Szekeres A, Fülöp F, Szakonyi Z. Stereoselective synthesis and application of isopulegol-based bi- and trifunctional chiral compounds. RSC Adv 2020; 10:38468-38477. [PMID: 35517552 PMCID: PMC9057261 DOI: 10.1039/d0ra07739a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 10/10/2020] [Indexed: 12/15/2022] Open
Abstract
A new family of isopulegol-based bi- and trifunctional chiral ligands such as triols, tetrols, aminodiols and aminotriols was developed from commercially available (−)-isopulegol with antibacterial, antifungal and antioxidant activities.
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Affiliation(s)
- Tam Minh Le
- Institute of Pharmaceutical Chemistry
- University of Szeged
- Interdisciplinary Excellence Centre
- H-6720 Szeged
- Hungary
| | - Thu Huynh
- Department of Microbiology
- University of Szeged
- 6726 Szeged
- Hungary
| | - Gábor Endre
- Department of Microbiology
- University of Szeged
- 6726 Szeged
- Hungary
| | - András Szekeres
- Department of Microbiology
- University of Szeged
- 6726 Szeged
- Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry
- University of Szeged
- Interdisciplinary Excellence Centre
- H-6720 Szeged
- Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry
- University of Szeged
- Interdisciplinary Excellence Centre
- H-6720 Szeged
- Hungary
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6
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Ozsvár D, Nagy V, Zupkó I, Szakonyi Z. Stereoselective Synthesis and Antiproliferative Activity of Steviol-Based Diterpen Aminodiols. Int J Mol Sci 2019; 21:ijms21010184. [PMID: 31888049 PMCID: PMC6981646 DOI: 10.3390/ijms21010184] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 12/20/2019] [Accepted: 12/22/2019] [Indexed: 11/16/2022] Open
Abstract
A library of steviol-based trifunctional chiral ligands was developed from commercially available natural stevisoide and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. The key intermediate steviol methyl ester was prepared according to literature procedure. Depending on the epoxidation process, both cis- and trans-epoxyalcohols were obtained. Subsequent oxirane ring opening with primary and secondary amines afforded 3-amino-1,2-diols. The ring opening with sodium azide followed by a “click” reaction with alkynes resulted in dihydroxytriazoles. The regioselective ring closure of N-substituted aminodiols with formaldehyde was also investigated. The resulting steviol-type aminodiols were tested against a panel of human adherent cancer cell lines (A2780, SiHa, HeLa, and MDA-MB-231). It was consistently found that the N-benzyl substituent is an essential part within the molecule and the ring closure towards N-benzyl substituted oxazolidine ring system increased the antiproliferative activity to a level comparable with that of cisplatine. In addition, structure–activity relationships were examined by assessing substituent effects on the aminodiol systems.
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Affiliation(s)
- Dániel Ozsvár
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary Excellent Center, H-6720 Szeged, Hungary;
| | - Viktória Nagy
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, H-6720 Szeged, Hungary; (V.N.); (I.Z.)
| | - István Zupkó
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, H-6720 Szeged, Hungary; (V.N.); (I.Z.)
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary Excellent Center, H-6720 Szeged, Hungary;
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Hungary
- Correspondence: ; Tel.: +36-62-546809; Fax: +36-62-545705
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7
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Synthesis and Application of 1,2-Aminoalcohols with Neoisopulegol-Based Octahydrobenzofuran Core. Molecules 2019; 25:molecules25010021. [PMID: 31861609 PMCID: PMC6982906 DOI: 10.3390/molecules25010021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/05/2019] [Accepted: 12/16/2019] [Indexed: 11/17/2022] Open
Abstract
A library of 1,2-aminoalcohol derivatives with a neoisopulegol-based octahydrobenzofuran core was developed and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. The allylic chlorination of (+)-neoisopulegol, derived from natural (–)-isopulegol followed by cyclization, gave the key methyleneoctahydrobenzofuran intermediate. The stereoselective epoxidation of the key intermediate and subsequent oxirane ring opening with primary amines afforded the required 1,2-aminoalcohols. The ring closure of the secondary amine analogues with formaldehyde provided spiro-oxazolidine ring systems. The dihydroxylation of the methylenetetrahydrofuran moiety with OsO4/NMO (4-methylmorpholine N-oxide) resulted in the formation of a neoisopulegol-based diol in a highly stereoselective reaction. The antimicrobial activity of both the aminoalcohol derivatives and the diol was also explored.
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8
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Curlat S. Recent Studies of (+)-3-Carene Transformations with the Retention of the Native Framework. CHEMISTRY JOURNAL OF MOLDOVA 2019. [DOI: 10.19261/cjm.2019.616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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9
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Wang Q, Li S, Hou C, Chu T, Hu X. Chiral P,N‐ligands for the highly enantioselective addition of diethylzinc to aromatic aldehydes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qiang Wang
- School of Light Industry and Chemical EnginerringDalian Polytechnic University Dalian 116034 China
| | - Shuang Li
- School of Light Industry and Chemical EnginerringDalian Polytechnic University Dalian 116034 China
| | - Chuan‐Jin Hou
- School of Light Industry and Chemical EnginerringDalian Polytechnic University Dalian 116034 China
| | - Ting‐Ting Chu
- School of Light Industry and Chemical EnginerringDalian Polytechnic University Dalian 116034 China
| | - Xiang‐Ping Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
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10
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Le TM, Szilasi T, Volford B, Szekeres A, Fülöp F, Szakonyi Z. Stereoselective Synthesis and Investigation of Isopulegol-Based Chiral Ligands. Int J Mol Sci 2019; 20:ijms20164050. [PMID: 31430981 PMCID: PMC6719113 DOI: 10.3390/ijms20164050] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/05/2019] [Accepted: 08/15/2019] [Indexed: 01/18/2023] Open
Abstract
A library of isopulegol-based bi-, tri- and tetrafunctional chiral ligands has been developed from commercially available (−)-isopulegol and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. Michael addition of primary amines towards α-methylene-γ-butyrolactone, followed by reduction, was accomplished to provide aminodiols in highly stereoselective transformations. Stereoselective epoxidation of (+)-neoisopulegol, derived from natural (−)-isopulegol, and subsequent oxirane ring opening with primary amines afforded aminodiols. The regioselective ring closure of N-substituted aminodiols with formaldehyde was also investigated. Hydroxylation of (+)-neoisopulegol resulted in diol, which was then transformed into aminotriols by aminolysis of its epoxides. Dihydroxylation of (+)-neoisopulegol or derivatives with OsO4/NMO gave neoisopulegol-based di-, tri- and tetraols in highly stereoselective reactions. The antimicrobial activity of aminodiol and aminotriol derivatives as well as di-, tri- and tetraols was also explored. In addition, structure–activity relationships were examined by assessing substituent effects on the aminodiol and aminotriol systems.
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Affiliation(s)
- Tam Minh Le
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary excellent center, H-6720 Szeged, Eötvös utca 6, Hungary
- Stereochemistry Research Group of the Hungarian Academy of Sciences, H-6720 Szeged, Eötvös utca 6, Hungary
| | - Tamás Szilasi
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary excellent center, H-6720 Szeged, Eötvös utca 6, Hungary
| | - Bettina Volford
- Department of Microbiology, University of Szeged, 6726 Szeged, Közép fasor 52, Hungary
| | - András Szekeres
- Department of Microbiology, University of Szeged, 6726 Szeged, Közép fasor 52, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary excellent center, H-6720 Szeged, Eötvös utca 6, Hungary
- Stereochemistry Research Group of the Hungarian Academy of Sciences, H-6720 Szeged, Eötvös utca 6, Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary excellent center, H-6720 Szeged, Eötvös utca 6, Hungary.
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
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11
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Le TM, Csámpai A, Fülöp F, Szakonyi Z. Regio- and Stereoselective Synthesis of Bicyclic Limonene-Based Chiral Aminodiols and Spirooxazolidines. Chemistry 2018; 24:13607-13615. [PMID: 29924432 DOI: 10.1002/chem.201802484] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/12/2018] [Indexed: 01/24/2023]
Abstract
A library of monoterpene-based aminodiols was synthesized and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. The reduction of a bicyclic α-methylene ketone, derived from natural (-)-limonene followed by epoxidation, gave the key epoxy alcohol intermediate. Ring opening of the oxirane ring with primary amines induced by lithium perchlorate afforded the required aminodiols. Substituent-dependent ring closure of the secondary aminodiols with formaldehyde resulted in both spirooxazolidines and a fused 1,3-oxazine. Cyclization reactions of the studied aminodiols, resulting in spirocyclic oxazolidines and an isomeric perhydro-1,3-oxazine-fused compound along with the possible iminium intermediates, were analyzed by a systematic series of comparative DFT models performed at the B3LYP/6-31+G(d,p) level of theory.
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Affiliation(s)
- Tam Minh Le
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged Eötvös utca 6, Hungary
| | - Antal Csámpai
- Institute of Chemistry, Eötvös Loránd University, P.O. Box 32, H-1518, Budapest-112, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged Eötvös utca 6, Hungary.,MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Science, Eötvös u. 6, H-6720, Szeged, Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged Eötvös utca 6, Hungary.,Interdisciplinary Centre of Natural Products, University of Szeged, H 6720, Szeged, Hungary
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12
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Tashenov Y, Daniels M, Robeyns K, Van Meervelt L, Dehaen W, Suleimen YM, Szakonyi Z. Stereoselective Syntheses and Application of Chiral Bi- and Tridentate Ligands Derived from (+)-Sabinol. Molecules 2018; 23:molecules23040771. [PMID: 29584708 PMCID: PMC6017647 DOI: 10.3390/molecules23040771] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 12/16/2022] Open
Abstract
A library of bidentate diols, as well as tridentate triols and aminodiols, derived from (+)-sabinol, was synthesized in a stereoselective manner. Sabinol was transformed into allylic trichloroacetamide via Overman rearrangement of the corresponding trichloroacetimidate. After changing the protecting group to Boc, the enamine was subjected to stereospecific dihydroxylation with OsO4/NMO, resulting in the (1R,2R,3R,5R)-aminodiol diastereomer. The obtained primary aminodiol was transformed to a secondary analogue. The ring closure of the N-benzyl-substituted aminodiol with formaldehyde was investigated and regioselective formation of the spiro-oxazolidine ring was observed. Hydroboration or dihydroxylation of sabinol or its benzyl ether with OsO4/NMO resulted in the formation of sabinane-based diols and triols following a highly stereospecific reaction. Treatment of sabinol with m-CPBA afforded O-benzoyl triol as a diastereoisomer of the directly dihydroxylated product, instead of the expected epoxy alcohol. The resulting aminodiols, diol, and triols were applied as chiral catalysts in the reaction of diethylzinc and benzaldehyde from moderate to good selectivity.
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Affiliation(s)
- Yerbolat Tashenov
- Institute of Applied Chemistry, Chemistry Department of L.N. Gumilyov Eurasian National University, Munaitpassov st., 5, 010008 Astana, Kazakhstan.
| | - Mathias Daniels
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Koen Robeyns
- IMCN, Molecules Solids and Reactivity division (MOST), Université catholique de Louvain, Place Pasteur 1, B-1348 Louvain-la-Neuve, Belgium.
| | - Luc Van Meervelt
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Wim Dehaen
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Yerlan M Suleimen
- Institute of Applied Chemistry, Chemistry Department of L.N. Gumilyov Eurasian National University, Munaitpassov st., 5, 010008 Astana, Kazakhstan.
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary.
- Interdisciplinary Centre of Natural Products, University of Szeged, H 6720 Szeged, Hungary.
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13
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Gonda T, Bérdi P, Zupkó I, Fülöp F, Szakonyi Z. Stereoselective Synthesis, Synthetic and Pharmacological Application of Monoterpene-Based 1,2,4- and 1,3,4-Oxadiazoles. Int J Mol Sci 2017; 19:ijms19010081. [PMID: 29283373 PMCID: PMC5796031 DOI: 10.3390/ijms19010081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 12/21/2017] [Accepted: 12/22/2017] [Indexed: 12/18/2022] Open
Abstract
Stereoselective synthesis of monoterpene-based 1,2,4- and 1,3,4-oxadiazole derivatives was accomplished starting from α,β-unsaturated carboxylic acids, obtained by the oxidation of (−)-2-carene-3-aldehyde and commercially available (−)-myrtenal. 1,2,4-Oxadiazoles were prepared in two steps via the corresponding O-acylamidoxime intermediates, which then underwent cyclisation induced by tetrabutylammonium fluoride (TBAF) under mild reaction conditions. Stereoselective dihydroxylation in highly stereospecific reactions with the OsO4/NMO (N-methylmorpholine N-oxide) system produced α,β-dihydroxy 1,2,4-oxadiazoles. Pinane-based 1,3,4-oxadiazoles were obtained similarly from acids by coupling with acyl hydrazines followed by POCl3-mediated dehydrative ring closure. In the case of the arane counterpart, the rearrangement of the constrained carane system occurred with the loss of chirality under the same conditions. Stereoselective dihydroxylation with OsO4/NMO produced α,β-dihydroxy 1,3,4-oxadiazoles. The prepared diols were applied as chiral catalysts in the enantioselective addition of diethylzinc to aldehydes. All compounds were screened in vitro for their antiproliferative effects against four malignant human adherent cell lines by means of the MTT assay with the O-acylated amidoxime intermediates exerting remarkable antiproliferative action.
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Affiliation(s)
- Tímea Gonda
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
| | - Péter Bérdi
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
| | - István Zupkó
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
- Stereochemistry Research Group of the Hungarian Academy of Sciences, H-6720 Szeged, Eötvös utca 6, Hungary.
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Eötvös utca 6, Hungary.
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Le Minh T, Fülöp F, Szakonyi Z. Stereoselective Synthesis of Limonene-Based Chiral 1,3-Amino Alcohols and Aminodiols. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tam Le Minh
- 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
- Stereochemistry Research Group of the Hungarian Academy of Sciences; Eötvös u. 6 6720 Szeged Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
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15
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Carane amino alcohols as organocatalysts in asymmetric aldol reaction of isatin with acetone. Russ Chem Bull 2017. [DOI: 10.1007/s11172-017-1730-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Gonda T, Balázs A, Tóth G, Fülöp F, Szakonyi Z. Stereoselective synthesis and transformations of pinane-based 1,3-diaminoalcohols. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Enantioselective addition of diethylzinc to aldehydes catalyzed by o-xylylene-type chiral 1,4-amino alcohols with an aminal structure. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.03.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Szakonyi Z, Csőr Á, Csámpai A, Fülöp F. Stereoselective Synthesis and Modelling-Driven Optimisation of Carane-Based Aminodiols and 1,3-Oxazines as Catalysts for the Enantioselective Addition of Diethylzinc to Benzaldehyde. Chemistry 2016; 22:7163-73. [PMID: 27072603 DOI: 10.1002/chem.201600749] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 11/12/2022]
Abstract
The reductive amination of (-)-2-carene-3-aldehyde, prepared in two steps from (-)-perillaldehyde, furnished 2-carene-based allylamines. tert-Butyloxycarbonyl (Boc) or carbobenzyloxy (Cbz) protection of the resulting amines, followed by stereoselective dihydroxylation in highly stereospecific reactions with OsO4 and subsequent deprotection, resulted in N-benzylaminodiols, which were transformed to primary and tertiary aminodiols. The reactions of the N-benzyl- and N-(1-phenylethyl)-substituted derivatives with formaldehyde led to highly regioselective ring closure, resulting in carane-fused 1,3-oxazines. The aminodiols and their 1,3-oxazine derivatives were applied as chiral catalysts in the enantioselective addition of diethylzinc to aldehydes. The best (R) enantioselectivity was observed in the case of the N-((R)-1-phenylethyl)-substituted aminodiol, whereas the opposite chiral direction was preferred when the 1,3-oxazines were applied. Through the use of molecular modelling at an ab initio level, this phenomenon was interpreted in terms of competing reaction pathways. Molecular modelling at the RHF/LANL2DZ level of theory was successfully applied for a mechanism-based interpretation of the stereochemical outcome of the reactions leading to the development of further 1,3-oxazine-based ligands, which display excellent (S) enantioselectivity (95 and 98 % ee) in the examined transformation.
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Affiliation(s)
- Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, 6720, Szeged, Hungary
| | - Árpád Csőr
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, 6720, Szeged, Hungary
| | - Antal Csámpai
- Institute of Chemistry, Eötvös Loránd University, P.O. Box 32, 1518, Budapest-112, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, 6720, Szeged, Hungary.
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Salgado PRR, da Fonsêca DV, Braga RM, de Melo CGF, Andrade LN, de Almeida RN, de Sousa DP. Comparative Anticonvulsant Study of Epoxycarvone Stereoisomers. Molecules 2015; 20:19660-73. [PMID: 26528962 PMCID: PMC6332048 DOI: 10.3390/molecules201119649] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 10/12/2015] [Accepted: 10/20/2015] [Indexed: 01/13/2023] Open
Abstract
Stereoisomers of the monoterpene epoxycarvone (EC), namely (+)-cis-EC, (-)-cis-EC, (+)-trans-EC, and (-)-trans-EC, were comparatively evaluated for anticonvulsant activity in specific methodologies. In the pentylenetetrazole (PTZ)-induced anticonvulsant test, all of the stereoisomers (at 300 mg/kg) increased the latency to seizure onset, and afforded 100% protection against the death of the animals. In the maximal electroshock-induced seizures (MES) test, prevention of tonic seizures was also verified for all of the isomers tested. However, the isomeric forms (+) and (-)-trans-EC showed 25% and 12.5% inhibition of convulsions, respectively. In the pilocarpine-induced seizures test, all stereoisomers demonstrated an anticonvulsant profile, yet the stereoisomers (+) and (-)-trans-EC (at 300 mg/kg) showed a more pronounced effect. A strychnine-induced anticonvulsant test was performed, and none of the stereoisomers significantly increased the latency to onset of convulsions; the stereoisomers probably do not act in this pathway. However, the stereoisomers (+)-cis-EC and (+)-trans-EC greatly increased the latency to death of the animals, thus presenting some protection. The four EC stereoisomers show promise for anticonvulsant activity, an effect emphasized in the isomers (+)-cis-EC, (+)-trans-EC, and (-)-trans-EC for certain parameters of the tested methodologies. These results serve as support for further research and development of antiepileptic drugs from monoterpenes.
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Affiliation(s)
- Paula Regina Rodrigues Salgado
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil; (P.R.R.S.); (D.V.F.); (R.M.B.); (C.G.F.M.); (R.N.A.)
| | - Diogo Vilar da Fonsêca
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil; (P.R.R.S.); (D.V.F.); (R.M.B.); (C.G.F.M.); (R.N.A.)
| | - Renan Marinho Braga
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil; (P.R.R.S.); (D.V.F.); (R.M.B.); (C.G.F.M.); (R.N.A.)
| | - Cynthia Germoglio Farias de Melo
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil; (P.R.R.S.); (D.V.F.); (R.M.B.); (C.G.F.M.); (R.N.A.)
| | - Luciana Nalone Andrade
- Departamento de Farmácia, Universidade Federal de Sergipe, São Cristóvão-SE, CEP 49100-000, Brazil;
| | - Reinaldo Nóbrega de Almeida
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil; (P.R.R.S.); (D.V.F.); (R.M.B.); (C.G.F.M.); (R.N.A.)
- Departamento de Fisiologia e Patologia, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil
| | - Damião Pergentino de Sousa
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil; (P.R.R.S.); (D.V.F.); (R.M.B.); (C.G.F.M.); (R.N.A.)
- Departamento de Ciências Farmacêuticas, Universidade Federal da Paraíba, CP 5009, João Pessoa, CEP 58051-900, PB, Brazil
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Lee DS, Chang SM, Ho CY, Lu TJ. Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by ChiralO,N,O-tridentate Phenol Ligands Derived From Camphor. Chirality 2015; 28:65-71. [DOI: 10.1002/chir.22543] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/20/2015] [Accepted: 07/22/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Dong-Sheng Lee
- Department of Chemistry; National Chung-Hsing University; Taichung Taiwan R.O.C
| | - Shu-Ming Chang
- Department of Chemistry; National Chung-Hsing University; Taichung Taiwan R.O.C
| | - Chun-Ying Ho
- Department of Chemistry; National Chung-Hsing University; Taichung Taiwan R.O.C
| | - Ta-Jung Lu
- Department of Chemistry; National Chung-Hsing University; Taichung Taiwan R.O.C
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21
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Enantioselective addition of diethylzinc to aldehydes catalyzed by (R)-1-phenylethylamine-derived 1,4-amino alcohols. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Li F, Huang H, Zong H, Bian G, Song L. Investigation on the asymmetric addition reactions between varied nonaromatic aldehydes and diethylzinc catalyzed by chiral phosphoramide and thiophosphorodiamide ligands. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Asami M, Nagai A, Sasahara Y, Ichikawa KI, Ito S, Hosoda N. Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by Diastereomeric 1,4-Amino Alcohols with o-Xylylene Skeleton. CHEM LETT 2015. [DOI: 10.1246/cl.141113] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masatoshi Asami
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University
| | - Atsushi Nagai
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University
| | - Yukihiro Sasahara
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University
| | - Ken-ichi Ichikawa
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University
| | - Suguru Ito
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University
| | - Naoya Hosoda
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University
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El Alami MSI, El Amrani MA, Agbossou-Niedercorn F, Suisse I, Mortreux A. Chiral ligands derived from monoterpenes: application in the synthesis of optically pure secondary alcohols via asymmetric catalysis. Chemistry 2014; 21:1398-413. [PMID: 25359663 DOI: 10.1002/chem.201404303] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The preparation of optically pure secondary alcohols in the presence of catalysts based on chiral ligands derived from monoterpenes, such as pinenes, limonenes and carenes, is reviewed. A wide variety of these ligands has been synthesized and used in several catalytic reactions, including hydrogen transfer, C-C bond formation via addition of organozinc compounds to aldehydes, hydrosilylation, and oxazaborolidine reduction, leading to high activities and enantioselectivities.
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Affiliation(s)
- Mohammed Samir Ibn El Alami
- Laboratoire de Chimie Organique Appliquée, Université Abdelmalek Essaadi, Faculté des Sciences, BP 2121-93002 Tetouan (Morocco), Fax: (+212) 5-39-99-45-00
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Human metabolism of Δ3-carene and renal elimination of Δ3-caren-10-carboxylic acid (chaminic acid) after oral administration. Arch Toxicol 2014; 89:381-92. [DOI: 10.1007/s00204-014-1251-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/15/2014] [Indexed: 10/25/2022]
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26
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Shih YS, Boobalan R, Chen C, Lee GH. Novel C2-symmetric chiral O,N,N,O-tetradentate 2,2-bipyridyldiolpropane ligands: synthesis and application in asymmetric diethylzinc addition to aldehydes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2013.12.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Csillag K, Szakonyi Z, Fülöp F. Stereoselective syntheses of pinane-based 1,3-diamines and their application as chiral ligands in the enantioselective addition of diethylzinc to benzaldehyde. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Mayans E, Gargallo A, Álvarez-Larena Á, Illa O, Ortuño RM. Diastereodivergent Synthesis of Chiralvic-Disubstituted-Cyclobutane Scaffolds: 1,3-Amino Alcohol and 1,3-Diamine Derivatives - Preliminary Use in Organocatalysis. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201307] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Csillag K, Németh L, Martinek TA, Szakonyi Z, Fülöp F. Stereoselective synthesis of pinane-type tridentate aminodiols and their application in the enantioselective addition of diethylzinc to benzaldehyde. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.01.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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