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Legnani L, Giofré SV, Iannazzo D, Celesti C, Veltri L, Chiacchio MA. Chemoselective Oxidation of Isoxazolidines with Ruthenium Tetroxide: A Successful Intertwining of Combined Theoretical and Experimental Data. Molecules 2022; 27:molecules27175390. [PMID: 36080160 PMCID: PMC9478963 DOI: 10.3390/molecules27175390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/22/2022] Open
Abstract
The direct oxidation reaction of isoxazolidines plays an important role in organic chemistry, leading to the synthesis of biologically active compounds. In this paper, we report a computational mechanistic study of RuO4-catalyzed oxidation of differently N-substituted isoxazolidines 1a–c. Attention was focused on the endo/exo oxidation selectivity. For all the investigated compounds, the exo attack is preferred to the endo one, showing exo percentages growing in parallel with the stability order of transient carbocations found along the reaction pathway. The study has been supported by experimental data that nicely confirm the modeling results.
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Affiliation(s)
- Laura Legnani
- Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
| | - Salvatore V. Giofré
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno D’Alcontres, 98166 Messina, Italy
| | - Daniela Iannazzo
- Dipartimento di Ingegneria, Università di Messina, Contrada di Dio, 98166 Messina, Italy
| | - Consuelo Celesti
- Dipartimento di Ingegneria, Università di Messina, Contrada di Dio, 98166 Messina, Italy
- Dipartimento di Medicina Clinica e Sperimentale, Università di Messina, Via Consolare Valeria, 98125 Messina, Italy
| | - Lucia Veltri
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via Pietro Bucci 12/C, 87036 Aracavacata di Rende, Italy
| | - Maria Assunta Chiacchio
- Dipartimento di Scienze del Farmaco e della Salute, Università di Catania, Viale A. Doria 6, 95125 Catania, Italy
- Correspondence:
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Assunta Chiacchio M, Iannazzo D, Giofrè SV, Romeo R, Legnani L. Ruthenium Tetroxide Oxidation of N-Methyl-Isoxazolidine: Computational Mechanistic Study. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Zhou CF, Zhang YQ, Ling Y, Ming L, Xi X, Liu GQ, Zhang Y. Time-economical synthesis of selenofunctionalized heterocycles via I 2O 5-mediated selenylative heterocyclization. Org Biomol Chem 2022; 20:420-426. [PMID: 34913464 DOI: 10.1039/d1ob02196f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A time-economical and robust synthesis of various selenofunctionalized heterocycles was accomplished via I2O5-mediated selenocyclizations of olefins with diselenides. Using this method, 116 selenomethyl-substituted heterocycles were synthesized with up to 97% isolated yield in minutes. Additional features of this new protocol include the use of an inorganic oxidant, mild conditions, and easy operation. Preliminary investigations suggest that the transformation operates through selenenyl iodide-induced electrophilic cyclization.
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Affiliation(s)
- Chen-Fan Zhou
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Yun-Qian Zhang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Yong Ling
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Liang Ming
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Xia Xi
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Gong-Qing Liu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Yanan Zhang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
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Romeo R, Iannazzo D, Veltri L, Gabriele B, Macchi B, Frezza C, Marino-Merlo F, Giofrè SV. Pyrimidine 2,4-Diones in the Design of New HIV RT Inhibitors. Molecules 2019; 24:E1718. [PMID: 31052607 PMCID: PMC6539630 DOI: 10.3390/molecules24091718] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/18/2019] [Accepted: 04/30/2019] [Indexed: 01/01/2023] Open
Abstract
The pyrimidine nucleus is a versatile core in the development of antiretroviral agents. On this basis, a series of pyrimidine-2,4-diones linked to an isoxazolidine nucleus have been synthesized and tested as nucleoside analogs, endowed with potential anti-HIV (human immunodeficiency virus) activity. Compounds 6a-c, characterized by the presence of an ethereal group at C-3, show HIV reverse transcriptase (RT) inhibitor activity in the nanomolar range as well as HIV-infection inhibitor activity in the low micromolar with no toxicity. In the same context, compound 7b shows only a negligible inhibition of RT HIV.
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Affiliation(s)
- Roberto Romeo
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche ed ambientali, Università di Messina, Via S.S. Annunziata, 98168 Messina, Italy.
| | - Daniela Iannazzo
- Dipartimento di Ingegneria, Università di Messina, Contrada Di Dio, 98166 Messina, Italy.
| | - Lucia Veltri
- Dipartimento di Chimica e tecnologie chimiche, Università della Calabria,Via P. Bucci 12/C, 87036 Arcavacata di Rende, Italy.
| | - Bartolo Gabriele
- Dipartimento di Chimica e tecnologie chimiche, Università della Calabria,Via P. Bucci 12/C, 87036 Arcavacata di Rende, Italy.
| | - Beatrice Macchi
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", 00133 Roma, Italy.
| | - Caterina Frezza
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", 00133 Roma, Italy.
| | | | - Salvatore V Giofrè
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche ed ambientali, Università di Messina, Via S.S. Annunziata, 98168 Messina, Italy.
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Sakamoto S, Miyamoto T, Usui K, Tanaka H, Morimoto S. Sodium-Periodate-Mediated Harringtonine Derivatives and Their Antiproliferative Activity against HL-60 Acute Leukemia Cells. JOURNAL OF NATURAL PRODUCTS 2018; 81:34-40. [PMID: 29286665 DOI: 10.1021/acs.jnatprod.7b00541] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Harringtonine (HT) is a naturally occurring alkaloid isolated from the plant genus Cephalotaxus. It possesses antileukemic activity and has been clinically utilized for the treatment of acute leukemia and lymphoma. Sodium periodate (NaIO4) was reacted with HT to produce five HT derivatives including four novel compounds. Their antiproliferative activity against HL-60 acute promyelocytic leukemia cells revealed that the presence of the C-5' methyl group enhances the antiproliferative activity because the IC50 values of the HT derivatives, including HT1 (5'-de-O-methylharringtonine), were at least 2000 times higher (>100 μM) than that of HT (∼47 nM). In addition, an indirect competitive enzyme-linked immunosorbent assay (icELISA) using a monoclonal antibody against HT (mAb 1D2) revealed that these antiproliferative activities were related to their cellular uptake. These results indicated that esterification of HT1 at the C-4' carboxylic acid group may enhance the antiproliferative activity of HT.
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Affiliation(s)
- Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Tomofumi Miyamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kazuteru Usui
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Egart B, Lentz D, Czekelius C. Diastereoselective Bromocyclization of O-Allyl-N-tosyl-hydroxylamines. J Org Chem 2013; 78:2490-9. [DOI: 10.1021/jo3026725] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Boris Egart
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195
Berlin, Germany
| | - Dieter Lentz
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195
Berlin, Germany
| | - Constantin Czekelius
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195
Berlin, Germany
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Romeo R, Giofrè SV, Macchi B, Balestrieri E, Mastino A, Merino P, Carnovale C, Romeo G, Chiacchio U. Truncated Reverse Isoxazolidinyl Nucleosides: A New Class of Allosteric HIV-1 Reverse Transcriptase Inhibitors. ChemMedChem 2012; 7:565-9. [DOI: 10.1002/cmdc.201200022] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 01/03/2023]
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Memeo MG, Mella M, Quadrelli P. The Chemoselective Reduction of Isoxazoline γ-Lactams Through Iminium Aza-Diels-Alder Reactions: A Short-Cut Synthesis of Aminols as Valuable Intermediates towards Nucleoside Derivatives. ScientificWorldJournal 2012; 2012:643647. [PMID: 22629174 PMCID: PMC3354679 DOI: 10.1100/2012/643647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 01/16/2012] [Indexed: 12/02/2022] Open
Abstract
Isoxazoline γ-lactams are prepared starting from the regioisomeric cycloadducts of benzonitrile oxide to the N-alkyl 2-azanorbornenes taking advantage of the efficient catalytic oxidation by RuO4. The reduction of the amide groups is easily conducted in the presence of LiAlH4 under mild conditions, which allowed for the chemoselective reduction of the amide moiety followed by ring opening to afford the desired conformationally locked isoxazoline-carbocyclic aminols, as valuable intermediates for nucleoside synthesis.
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Affiliation(s)
- Misal Giuseppe Memeo
- Dipartimento di Chimica, Università degli Studi di Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Mariella Mella
- Dipartimento di Chimica, Università degli Studi di Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Dipartimento di Chimica, Università degli Studi di Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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Moriyama K, Izumisawa Y, Togo H. Oxidative intramolecular bromo-amination of N-alkenyl sulfonamides via umpolung of alkali metal bromides. J Org Chem 2011; 76:7249-55. [PMID: 21823624 DOI: 10.1021/jo201113r] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The oxidative intramolecular bromo-amination of various N-alkenyl sulfonamides and N-alkenoxyl sulfonamides via umpolung of alkali metal bromides occurred exo-selectively to generate cyclic bromoamides in high yields with good diastereoselectivities. This method provided the desired products without elaborating the stoichiometric amount of corresponding organic waste.
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Affiliation(s)
- Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan.
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Memeo MG, Bovio B, Quadrelli P. RuO4-catalyzed oxidation reactions of isoxazolino-2-azanorbornane derivatives: a short-cut synthesis of tricyclic lactams and peptidomimetic γ-amino acids. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.01.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhou M, Crabtree RH. C–H oxidation by platinum group metal oxo or peroxo species. Chem Soc Rev 2011; 40:1875-84. [DOI: 10.1039/c0cs00099j] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Jiang D, Peng J, Chen Y. Palladium-catalyzed cascade one-pot synthesis of 5-arylmethylisoxazolidines from N-homoallylhydroxylamines with aryl bromides. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.12.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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