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Ide K, Furuta M, Tokuyama H. Photoredox-catalyzed intramolecular cyclopropanation of alkenes with α-bromo-β-keto esters. Org Biomol Chem 2021; 19:9172-9176. [PMID: 34664610 DOI: 10.1039/d1ob01733k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A mild photoredox-catalyzed intramolecular cyclopropanation of alkenes with α-bromo-β-keto esters in an aqueous medium was developed. The sequential reaction process comprising the intramolecular radical addition of α-bromo-β-keto esters to olefins under photoredox catalysis, and subsequent cyclization to form cyclopropane proceeds in one-pot under exceptionally mild conditions at room temperature in the presence of 2,6-lutidine. A broad range of substrates consisting of various alkenes and both base- and acid-sensitive functionalized esters were feasible under the reaction conditions, resulting in a wide range of functionalized bicyclic cyclopropanes.
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Affiliation(s)
- Kohta Ide
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Miyu Furuta
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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2
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Sengupta S, Kim HJ, Cho KS, Song WY, Sim T. Highly stereoselective synthesis of mupirocin H. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.01.017] [Citation(s) in RCA: 5] [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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3
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González-Calderón D, Mejía-Dionicio MG, Morales-Reza MA, Aguirre-de Paz JG, Ramírez-Villalva A, Morales-Rodríguez M, Fuentes-Benítes A, González-Romero C. Antifungal activity of 1'-homo-N-1,2,3-triazol-bicyclic carbonucleosides: A novel type of compound afforded by azide-enolate (3+2) cycloaddition. Bioorg Chem 2016; 69:1-6. [PMID: 27656774 DOI: 10.1016/j.bioorg.2016.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/01/2016] [Accepted: 09/14/2016] [Indexed: 01/06/2023]
Abstract
The first report of 1'-homo-N-1,2,3-triazol-bicyclic carbonucleosides (7a and 7b) is described herein. Azide-enolate (3+2) cycloaddition afforded the synthesis of this novel type of compound. Antifungal activity was evaluated in vitro against four filamentous fungi (Aspergillus fumigatus, Trichosporon cutaneum, Rhizopus oryzae and Mucor hiemalis) as well as nine species of Candida spp. as yeast specimens. These pre-clinical studies suggest that compounds 7a and 7b are promising candidates for complementary biological studies due to their good activity against Candida spp.
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Affiliation(s)
- Davir González-Calderón
- Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico.
| | - María G Mejía-Dionicio
- Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico
| | - Marco A Morales-Reza
- Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico
| | - José G Aguirre-de Paz
- Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico
| | - Alejandra Ramírez-Villalva
- Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico
| | - Macario Morales-Rodríguez
- Departamento de Microbiología, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico
| | - Aydeé Fuentes-Benítes
- Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico
| | - Carlos González-Romero
- Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón/Paseo Tollocan s/n, Toluca, Estado de México 50120, Mexico.
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4
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Lv Y, Sun K, Wang T, Wu Y, Li G, Pu W, Mao S. Intermolecular C−N Cross-Coupling Reactions Catalyzed by Tetra-n-butylammonium Iodide: Synthesis of AllylicN-Heterocycles. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500517] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yunhe Lv
- College of Chemistry and Chemical Engineering; Anyang Normal University; 436 Xian'ge Road Anyang City Henan 455000 China
| | - Kai Sun
- College of Chemistry and Chemical Engineering; Anyang Normal University; 436 Xian'ge Road Anyang City Henan 455000 China
| | - Tingting Wang
- College of Chemistry and Chemical Engineering; Anyang Normal University; 436 Xian'ge Road Anyang City Henan 455000 China
| | - Yingtao Wu
- College of Chemistry and Chemical Engineering; Anyang Normal University; 436 Xian'ge Road Anyang City Henan 455000 China
| | - Gang Li
- College of Chemistry and Chemical Engineering; Anyang Normal University; 436 Xian'ge Road Anyang City Henan 455000 China
| | - Weiya Pu
- College of Chemistry and Chemical Engineering; Anyang Normal University; 436 Xian'ge Road Anyang City Henan 455000 China
| | - Shukuan Mao
- College of Chemistry and Chemical Engineering; Anyang Normal University; 436 Xian'ge Road Anyang City Henan 455000 China
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5
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Stereocontrolled total synthesis and biological evaluation of (−)- and (+)-petrosin and its derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Sengupta S, Sim T. A Concise Synthesis of Mupirocin H Using a Cross-Metathesis-Based Strategy. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402442] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Hashimoto T, Tashiro T, Sasaki M, Takikawa H. Synthesis of (±)-Sundiversifolide Based on Lewis Acid-Mediated Claisen Rearrangement. Biosci Biotechnol Biochem 2014; 71:2046-51. [PMID: 17690458 DOI: 10.1271/bbb.70283] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A new and concise synthesis of (+/-)-sundiversifolide (1), an allelopathic bisnor-sesquiterpene lactone isolated from germinating sunflower (Helianthus annuus L.) seeds, was achieved by employing Lewis acid-mediated Claisen rearrangement as the key step.
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Affiliation(s)
- Takashi Hashimoto
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Rokkodai, Kobe, Japan
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Wan ZL, Zhang GL, Chen HJ, Wu Y, Li Y. A Chiral Pool and Cross Metathesis Based Synthesis of Gingerdiols. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301727] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Schmidt B, Hauke S. Cross metathesis of allyl alcohols: how to suppress and how to promote double bond isomerization. Org Biomol Chem 2013; 11:4194-206. [PMID: 23676990 DOI: 10.1039/c3ob40167g] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under standard conditions the cross metathesis of allyl alcohols and methyl acrylate is accompanied by the formation of ketones, resulting from uncontrolled and undesired double bond isomerization. By conducting the CM in the presence of phenol, the catalyst loading and the reaction time required for quantiative conversion can be reduced, and isomerization can be suppressed. On the other hand, consecutive isomerization can be deliberately promoted by evaporating excess methyl acrylate after completing cross metathesis and by adding a base or silane as chemical triggers.
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Affiliation(s)
- Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie, Organische Synthesechemie, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm, Germany.
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10
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Wang WG, Du X, Li XN, Wu HY, Liu X, Shang SZ, Zhan R, Liang CQ, Kong LM, Li Y, Pu JX, Sun HD. New bicyclo[3.1.0]hexane unit ent-kaurane diterpene and its seco-derivative from Isodon eriocalyx var. laxiflora. Org Lett 2011; 14:302-5. [PMID: 22181015 DOI: 10.1021/ol203061z] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Neolaxiflorin A (1), an unprecedented ent-kaurane diterpenoid with a bicyclo[3.1.0]hexane unit, and its seco-derivative, neolaxiflorin B (2), along with two known compounds 3 and 4 were isolated from the leaves of Isodon eriocalyx var. laxiflora. The absolute configuration of 1 was determined by spectral methods and single crystal X-ray diffraction analysis. Compound 4 and the synthesized compound 5 exhibited significant cytotoxicity.
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Affiliation(s)
- Wei-Guang Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, PR China
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11
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Wardrop DJ, Bowen EG. Nitrenium ion-mediated alkene bis-cyclofunctionalization: total synthesis of (-)-swainsonine. Org Lett 2011; 13:2376-9. [PMID: 21486077 PMCID: PMC3100185 DOI: 10.1021/ol2006117] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The total synthesis of (-)-swainsonine from 2,3-O-isopropylidene-D-erythrose in 12 steps and an overall yield of 28% is reported. The pivotal transformation in our route to this indolizidine alkaloid is the formation of the pyrrolidine ring and C-8a/8 stereodiad through the diastereoselective, bis-cyclofunctionalization of an γ,δ-unsaturated O-alkyl hydroxamate. This transformation is believed to proceed via the intramolecular capture of an N-acyl-N-alkoxyaziridinium ion generated by the diastereoselective addition of a singlet acylnitrenium ion to the pendant alkene.
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Affiliation(s)
- Duncan J Wardrop
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States.
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12
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Toya H, Okano K, Takasu K, Ihara M, Takahashi A, Tanaka H, Tokuyama H. Enantioselective Total Synthesis of (−)- and (+)-Petrosin. Org Lett 2010; 12:5196-9. [DOI: 10.1021/ol1022257] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroki Toya
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Faculty of Pharmacy and College of Science and Engineering, Iwaki Meisei University, Iwaki, Fukushima 970-8551, Japan
| | - Kentaro Okano
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Faculty of Pharmacy and College of Science and Engineering, Iwaki Meisei University, Iwaki, Fukushima 970-8551, Japan
| | - Kiyosei Takasu
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Faculty of Pharmacy and College of Science and Engineering, Iwaki Meisei University, Iwaki, Fukushima 970-8551, Japan
| | - Masataka Ihara
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Faculty of Pharmacy and College of Science and Engineering, Iwaki Meisei University, Iwaki, Fukushima 970-8551, Japan
| | - Atsushi Takahashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Faculty of Pharmacy and College of Science and Engineering, Iwaki Meisei University, Iwaki, Fukushima 970-8551, Japan
| | - Haruo Tanaka
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Faculty of Pharmacy and College of Science and Engineering, Iwaki Meisei University, Iwaki, Fukushima 970-8551, Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Faculty of Pharmacy and College of Science and Engineering, Iwaki Meisei University, Iwaki, Fukushima 970-8551, Japan
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13
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Sabitha G, Vangala B, Reddy S, Yadav J. Total Synthesis of (+)-Cryptocaryalactone and of a Diastereoisomer of (+)-StrictifolioneviaRing-Closing Metathesis (RCM) and Olefin Cross-Metathesis (CM). Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900170] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Ho CY, Chan CW, Wo SK, Zuo Z, Chan LY. Nitrile assisted, Brønsted acid catalyzed regio and stereoselective diarylphosphonylation of allyl silyl ethers. Org Biomol Chem 2010; 8:3480-7. [DOI: 10.1039/c001660h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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15
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Michel BY, Strazewski P. Total syntheses of a conformationally locked North-type methanocarba puromycin analogue and a dinucleotide derivative. Chemistry 2009; 15:6244-57. [PMID: 19441002 DOI: 10.1002/chem.200802629] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An original synthetic approach for the first synthesis of an enantiopure methanocarba puromycin (3'-alpha-aminoacylamino-3'-deoxyadenosine) analogue and its cytidine dinucleotide derivative is described. Each compound is conformationally locked in a North-type pucker and exhibits both a pseudoaxial hydroxy group and a pseudoequatorial aminoacyl group. The syntheses were accomplished from D-ribose in 18 and 19 steps, respectively, with key steps being a ring-closing metathesis, a Luche reduction, a Simmons-Smith cyclopropanation, a Mitsunobu coupling, a Mattocks bromoacetylation, a regioselective and a stereoselective nucleophilic substitution, a chemoselective phosphoramidite coupling and a Staudinger-Vilarrasa coupling. Both molecules are being tested for peptidyl transfer efficiency in ribosomes for comparison with the peptidyl transfer kinetics of natural puromycin and other natural and synthetic ribosomal A site substrates.
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Affiliation(s)
- Benoît Y Michel
- UMR 5246, CNRS, Laboratoire de Synthèse de Biomolécules, Université Claude Bernard Lyon 1, Villeurbanne, Université de Lyon, 69622 Lyon, France
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Sabitha G, Fatima N, Gopal P, Reddy CN, Yadav JS. Stereoselective total synthesis of (+)-strictifolione and (6R)-6-[(4R,6R)-4,6-dihydroxy-10-phenyldec-1-enyl]-5,6-dihydro-2H-pyran-2-one by Prins reaction and olefin cross-metathesis. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2008.12.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Aubin Y, Audran G, Monti H, De Clercq E. Chemoenzymatic synthesis and antiviral evaluation of conformationally constrained and 3′-methyl-branched carbanucleosides using both enantiomers of the same building block. Bioorg Med Chem 2008; 16:374-81. [PMID: 17905585 DOI: 10.1016/j.bmc.2007.09.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Revised: 09/10/2007] [Accepted: 09/14/2007] [Indexed: 10/22/2022]
Abstract
Starting from both enantiomers of a readily available building block, a straightforward enantioselective approach to constrained 3'-methyl-2',3'-alpha-oxirane-fused and 3'-methyl-3',4'-alpha-oxirane-fused carbanucleosides bearing different purine base analogues is described. The title compounds were evaluated as potential antiviral agents against important viruses. None of the new compounds had significant antiviral activity at a concentration of 100 microg/mL, which was the highest concentration tested.
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Affiliation(s)
- Yoann Aubin
- Laboratoire de Réactivité Organique Sélective, U.M.R. 6180 Chirotechnologies: catalyse et biocatalyse, Université Paul Cézanne, Aix-Marseille III, 13397 Marseille Cedex 20, France
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Aubin Y, Audran G, Vanthuyne N, Monti H. Chemoenzymatic synthesis of novel adenosine carbanucleoside analogues containing a locked 3′-methyl-2′,3′-β-oxirane-fused system. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Van de Weghe P, Bisseret P, Blanchard N, Eustache J. Metathesis of heteroatom-substituted olefins and alkynes: Current scope and limitations. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.07.022] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nowak I, Robins MJ. Addition of Difluorocarbene to 4‘,5‘-Unsaturated Nucleosides: Synthesis and Deoxygenation Reactions of Difluorospirocyclopropane Nucleosides1. J Org Chem 2006; 71:8876-83. [PMID: 17081018 DOI: 10.1021/jo061606u] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Synthetic routes to 4'-(2,2-difluorospirocyclopropane) analogues of adenosine, cytidine, and uridine are described. Treatment of 2',3'-O-isopropylidene-4',5'-unsaturated compounds derived from adenosine and uridine with difluorocarbene (generated from PhHgCF3 and NaI) gave diastereomeric mixtures of the 2,2-difluorospirocyclopropane adducts. Stereoselectivity resulting from hindrance by the isopropylidene group favored addition at the beta face. Removal of base and sugar protecting groups gave new difluorospirocyclopropane nucleoside analogues. The protected uridine analogue was converted into its cytidine counterpart via a 4-(1,2,4-triazol-1-yl) intermediate. Stannyl radical-mediated deoxygenation of the 3'-O-TBS-2'-thionocarbamate derivatives gave the 2'-deoxy products of direct hydrogen transfer. In contrast, identical treatment of the 2'-O-TBS-3'-thionocarbamate isomers resulted in opening of the vicinal difluorocyclopropane ring upon generation of a C3' radical followed by homoallylic hydrogen transfer to give 4'-(1,1-difluoroethyl)-3',4'-unsaturated nucleoside derivatives. Structural aspects and biological effect considerations are discussed.
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Affiliation(s)
- Ireneusz Nowak
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602-5700, USA
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