1
|
Quevedo-Acosta Y, Jurberg ID, Gamba-Sánchez D. Cyclization Strategies Using Imide Derivatives for the Synthesis of Polycyclic Nitrogen‐Containing Compounds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Igor D. Jurberg
- Universidade Estadual de Campinas Institute of Chemistry 13083 BRAZIL
| | - Diego Gamba-Sánchez
- Universidad de Los Andes Chemistry Department Cra 1 No. 18A-12 Q:305 111711 Bogota COLOMBIA
| |
Collapse
|
2
|
Zhu J, Zhang C, Liu L, Xue C, Cai Y, Liu XY, Xue F, Qin Y. Total Synthesis of Sarpagine Alkaloid (-)-Normacusine B. Org Lett 2022; 24:3515-3520. [PMID: 35544733 DOI: 10.1021/acs.orglett.2c01177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An asymmetric total synthesis of the sarpagine alkaloid (-)-normacusine B is presented. Salient features of this synthesis include a photocatalytic nitrogen-centered radical cascade reaction to assemble the tetrahydrocarbolinone skeleton, a titanium-mediated intramolecular amide-alkene coupling to construct the bridged azabicyclo[3.3.1]nonane moiety, and a nickel-catalyzed reductive Heck coupling to assemble the azabicyclo[2.2.2]octane ring system.
Collapse
Affiliation(s)
- Jianquan Zhu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chao Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Luyi Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chaoyun Xue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yukun Cai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiao-Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Fei Xue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| |
Collapse
|
3
|
Carneros H, Sánchez D, Vilarrasa J. Transfer of 1-Alkenyl Groups between Secondary Amines. Relative Stability and Reactivity of Enamines from Popular Organocatalysts. Org Lett 2014; 16:2900-3. [DOI: 10.1021/ol501044u] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Héctor Carneros
- Departament
de Química
Orgànica, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Dani Sánchez
- Departament
de Química
Orgànica, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Jaume Vilarrasa
- Departament
de Química
Orgànica, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
| |
Collapse
|
4
|
Cheng L, Liu L, Li C, Jia H, Wang D, Chen YJ. Nucleophilic addition of regioselectively lithiated indoline with aldimines for the syntheses of 2- and 7-indolinyl methanamine derivatives. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
5
|
Kamimura A, Takeuchi R, Ikeda K, Moriyama T, Sumimoto M. Stereoselective Synthesis of 1-Nitrobicyclo[3.1.0]hexanes and Fused Isoxazoline-N-oxides from Primary Nitro Compounds. J Org Chem 2012; 77:2236-45. [DOI: 10.1021/jo202489v] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akio Kamimura
- Department of Applied Molecular
Bioscience, Graduate School of Medicine, Yamaguchi University, Ube 755-8611, Japan
| | - Ryota Takeuchi
- Department of Applied Molecular
Bioscience, Graduate School of Medicine, Yamaguchi University, Ube 755-8611, Japan
| | - Kosuke Ikeda
- Department of Applied Molecular
Bioscience, Graduate School of Medicine, Yamaguchi University, Ube 755-8611, Japan
| | - Takaaki Moriyama
- Department of Applied Molecular
Bioscience, Graduate School of Medicine, Yamaguchi University, Ube 755-8611, Japan
| | - Michinori Sumimoto
- Department of Material Chemistry,
Graduate School of Science and Engineering, Yamaguchi University, Ube 755-8611, Japan
| |
Collapse
|
6
|
Lee J, Berritt S, Prier CK, Joullié MM. Facile ring-opening of azabicyclic [3.1.0]- and [4.1.0]aminocyclopropanes to afford 3-piperidinone and 3-azepinone. Org Lett 2011; 13:1083-5. [PMID: 21271686 DOI: 10.1021/ol103105q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Azabicyclic [3.1.0] and [4.1.0] Kulinkovich products underwent a facile reduction/fragmentation to afford a variety of 3-piperidinones and 3-azepinones, respectively, in the presence of catalytic palladium on carbon and formic acid in an atmosphere of hydrogen.
Collapse
Affiliation(s)
- Jisun Lee
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | | | | | | |
Collapse
|
7
|
Saneyoshi H, Vu BC, Hughes SH, Boyer PL, Sarafianos SG, Marquez VE. Synthesis of conformationally locked carbocyclic nucleoside phosphonates to probe the active site of HIV-1 RT. ACTA ACUST UNITED AC 2010:623-4. [PMID: 18776534 DOI: 10.1093/nass/nrn315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The conformationally locked carbocyclic nucleoside phosphonates 2 and 2' and key intermediates for the synthesis of 3 and 3' were prepared from a chiral cyclopentene derivative and epicholorohydrine, respectively. The structure of the nucleoside precursor 6 was confirmed by X-ray crystallography. These carbocyclic nucleoside phosphonates were designed to probe their binding interactions at the active site of HIV-1-RT.
Collapse
Affiliation(s)
- Hisao Saneyoshi
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute at Frederick, National Institutes of Health, Frederick, MD 21702, USA
| | | | | | | | | | | |
Collapse
|
8
|
de Meijere A, Chaplinski V, Winsel H, Kordes M, Stecker B, Gazizova V, Savchenko AI, Boese R, Schill née Brackmann F. Cyclopropylamines from N,N-Dialkylcarboxamides and Grignard Reagents in the Presence of Titanium Tetraisopropoxide or Methyltitanium Triisopropoxide. Chemistry 2010; 16:13862-75. [DOI: 10.1002/chem.201001550] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
9
|
Synthetic transformations mediated by the combination of titanium(IV) alkoxides and grignard reagents: selectivity issues and recent applications. Part 1: reactions of carbonyl derivatives and nitriles. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.10.050] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
10
|
Kamimura A, Kadowaki A, Yoshida T, Takeuchi R, Uno H. Stereoselective Synthesis of Bicyclic Nitrocyclopropanes by a Radical-Anion Domino Reaction. Chemistry 2009; 15:10330-4. [DOI: 10.1002/chem.200901920] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
11
|
Diastereoselective Ti-mediated preparation of bicyclic aminocyclopropanes from N-alkenyl amides. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
12
|
Jerome L, Sheppard TD, Aliev AE, Motherwell WB. Intramolecular amidocyclopropanation reactions using diethoxymethyl-functionalised lactams as organozinc carbenoid precursors. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
13
|
Albano VG, Gualandi A, Monari M, Savoia D. Asymmetric Synthesis of 8-Aminoindolizidine from Chiral 2-Pyrroleimines. J Org Chem 2008; 73:8376-81. [DOI: 10.1021/jo8014598] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vincenzo Giulio Albano
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Andrea Gualandi
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Magda Monari
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Diego Savoia
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| |
Collapse
|
14
|
|
15
|
Tanaka M, Ubukata M, Matsuo T, Yasue K, Matsumoto K, Kajimoto Y, Ogo T, Inaba T. One-Step Synthesis of Heteroaromatic-Fused Pyrrolidines via Cyclopropane Ring-Opening Reaction: Application to the PKCβ Inhibitor JTT-010. Org Lett 2007; 9:3331-4. [PMID: 17655251 DOI: 10.1021/ol071336h] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A ring-opening reaction of cyclopropanes with five-membered heteroaromatics having a leaving group at C(2) was found to provide heteroaromatic-fused pyrrolidines in one step. This reaction was successfully applied to the synthesis of the protein kinase C-beta inhibitor JTT-010, which possesses a dihydropyrrolo[1,2-a]indole core.
Collapse
Affiliation(s)
- Masahiro Tanaka
- Central Pharmaceutical Research Institute, Japan Tobacco Inc., Takatsuki Osaka 569-1125, Japan
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Masschelein KG, Stevens CV, Dieltiens N, Claeys DD. Exploiting the regioselectivity of pyroglutamate alkylations for the synthesis of 6-azabicyclo[3.2.1]octanes and 4-azabicyclo[3.3.0]octanes. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
17
|
|
18
|
Brackmann F, Schill H, de Meijere A. An Access to 3,4-(Aminomethano)proline in Racemic and Enantiomerically Pure Form. Chemistry 2005; 11:6593-600. [PMID: 16118823 DOI: 10.1002/chem.200500384] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Protected racemic and enantiomerically pure 3,4-(aminomethano)prolines rac-9 and (2S,2'R,3R,4R)-9 have been prepared applying a titanium-mediated reductive cyclopropanation as a key step. Thus, cyclopropanations of N,N-dibenzylformamide with titanacyclopropanes generated in situ from racemic or enantiomerically pure tert-butyl N-Boc-3,4-dehydroprolinates rac-8 or (S)-8 proceed diastereoselectively, and furnish the protected racemic and enantiomerically pure diamino acid 9. The latter was incorporated into three tripeptides containing glycyl, alanyl and phenylalanyl moieties.
Collapse
Affiliation(s)
- Farina Brackmann
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | | | | |
Collapse
|
19
|
Larquetoux L, Ouhamou N, Chiaroni A, Six Y. The Intramolecular Aromatic Electrophilic Substitution of Aminocyclopropanes Prepared by the Kulinkovich-de Meijere Reaction. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500428] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
20
|
Halbach TS, Mix S, Fischer D, Maechling S, Krause JO, Sievers C, Blechert S, Nuyken O, Buchmeiser MR. Novel Ruthenium-Based Metathesis Catalysts Containing Electron- Withdrawing Ligands: Synthesis, Immobilization, and Reactivity. J Org Chem 2005; 70:4687-94. [PMID: 15932306 DOI: 10.1021/jo0477594] [Citation(s) in RCA: 121] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The syntheses and reactivity of seven different ruthenium-based metathesis catalysts are described. Ru(CF3COO)2(PCy3)(=CH-2-(2-PrO)C6H4) (1), Ru(CF3COO)2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) (2), and Ru(CF3COO)2(PCy(3))(1,3-dimesityldihydroimidazolin-2-ylidene)(=CHC6H5) (3) were prepared via chlorine exchange by reacting RuCl2(PCy3)2(=CH-2-(2-PrO)C6H4), RuCl2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4), and RuCl2(PCy3)(1,3-dimesityldihydroimidazolin-2-ylidene)(=CHC6H5), respectively, with silver trifluoroacetate (Cy =cyclohexyl). In analogy, Ru(CF3CF2COO)2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) (4) and Ru(CF3CF2CF2COO)2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) (5) were prepared from RuCl2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) via reaction with CF3CF2COOAg and CF3CF2CF2COOAg, respectively. Ru(C6F5COO)2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) (6) and Ru(C6F5O)2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) (7) were prepared from RuCl2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) via reaction with C6F5COOTl and C6F5OTl, respectively. Supported catalysts Ru(PS-DVB-CH2OOCCF2CF2CF2COO)(CF3COO)(PCy3)(1,3-dimesityldihydroimidazolin-2-ylidene)(=CHC6H5) (8), Ru(PS-DVB-CH2OOCCF2CF2CF2COO)(CF3COO)(PCy3)(=CH-2-(2-PrO)C6H4) (9), and Ru(PS-DVB-CH2OOCCF2CF2CF2COO)(CF3COO)(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4) (10) were synthesized by reaction of RuCl2(PCy3)(1,3-dimesityldihydroimidazolin-2-ylidene)(=CHC6H5), RuCl2(PCy3)(=CH-2-(2-PrO)C6H4), and RuCl2(1,3-dimesityldihydroimidazolin-2-ylidene)(=CH-2-(2-PrO)C6H4), respectively, with a perfluoroglutaric acid-derivatized poly(styrene-co-divinylbenzene) (PS-DVB) support (silver form). Halogen exchange in PCy3-containing systems had to be carried out in dichloromethane in order to suppress precipitation of AgCl.PCy3. The reactivity of all new catalysts in ring-closing metathesis (RCM) of hindered electron-rich and -poor substrates, respectively, at elevated temperature (45 degrees C) was compared with that of existing systems. Diethyl diallylmalonate (DEDAM, 11), diethyl allyl(2-methylallyl)malonate (12), N,N-diallyl-p-toluenesulfonamide (13), N-benzyl-N-but-1-en-4-ylbut-2-enecarboxylic amide (14), and N-allyl-N-(1-carboxymethyl)but-3-en-1-yl-p-toluenesulfonamide (15) were used as educts. Supported catalysts were prepared with high loadings (2.4, 22.1, and 160 mg of catalyst/g PS-DVB for 8, 9, and 10, respectively). Catalyst 8 showed higher and catalysts 9 and 10 sowed significantly reduced activities in RCM compared to their homogeneous analogues. Thus, with 8, turnover numbers (TONs) up to 4200 were realized in stirred-batch (carousel) RCM experiments. To elucidate the nature of the bound species, catalysts 8-10 were subjected to 13C- and 31P-MAS NMR spectroscopy. These investigations provided evidence for the proposed structures. Leaching of ruthenium into the reaction mixture was low, resulting in ruthenium contents <85 ppb (ng/g) in the final RCM-derived products.
Collapse
Affiliation(s)
- Tobias S Halbach
- Lehrstuhl für Makromolekulare Stoffe, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
|