1
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Dong X, Sun X, Yang Y, Liu W, Zheng B, Li X, Zhang D, Wang F, Liu H. Pd/Et 3N·HI-Catalyzed Intramolecular C-H Alkylation to Access [ a]-Annulated Indoles via Highly Regioselective Ring-Opening of Epoxides. J Org Chem 2022; 87:7995-8004. [PMID: 35671111 DOI: 10.1021/acs.joc.2c00630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Pd/Et3N·HI-catalyzed intramolecular C-H alkylation of indoles with epoxides was achieved to furnish N-fused indole frameworks (5-, 6-, and 7-membered rings) bearing an alcohol group. The conversion proceeded smoothly in the presence of a catalytic amount of Et3N·HI together with a palladium catalyst and exhibited great functional group tolerance. The employment of Et3N·HI not only avoids the prior preparation of alkyl halide substrates but also is the key to the high chemoselective ring-opening of epoxides. Preliminary mechanism explorations strongly support a radical pathway, and the catalytic cycle was established tentatively according to the mechanism investigation experiments.
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Affiliation(s)
- Xu Dong
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Xi Sun
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Yi Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Weiwei Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Bowen Zheng
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Xinjin Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Daopeng Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Fagang Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Hui Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
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2
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Miaskiewicz S, Weibel JM, Pale P, Blanc A. A gold( i)-catalysed approach towards harmalidine an elusive alkaloid from Peganum harmala. RSC Adv 2022; 12:26966-26974. [PMID: 36275169 PMCID: PMC9490519 DOI: 10.1039/d2ra05685b] [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: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/21/2022] Open
Abstract
Upon gold catalysis, the 2,3-dihydropyrrolo[1,2-a]indole motif, encountered in few but interesting bioactive natural products, was efficiently obtained from N-aryl 2-alkynylazetidine derivatives. In an attempt to apply this methodology to the synthesis of harmalidine, isolated from the seeds of Peganum harmala, advanced amino 2,3-hydropyrrolo[1,2-a]indol(one) derivatives were readily obtained in only 11 steps from but-3-yn-1-ol. While the reported structure of harmalidine could not be reached from these intermediates, a surprising 12-membered diimino dimer was isolated. Extensive comparison of the reported harmalidine NMR data to the experimental and calculated data of our synthetic molecules, harmaline or the synthetised N-methylharmaline show discrepancies with the proposed natural product structure. Upon gold catalysis, the 2,3-dihydropyrrolo[1,2-a]indole motif, encountered in few but interesting bioactive natural products, was efficiently obtained from N-aryl 2-alkynylazetidine derivatives.![]()
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Affiliation(s)
- Solène Miaskiewicz
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 - CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg, France
| | - Jean-Marc Weibel
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 - CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg, France
| | - Patrick Pale
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 - CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg, France
| | - Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 - CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg, France
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3
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Du L, Han Y, Zhang H, Zhang Y, Zhao J, Liang Y. Synthesis of 1
H
‐Pyrrolo[1,2‐
a
]indoles
via
Lewis Acid‐Catalyzed Annulation of Propargylic Alcohols with 2‐Ethynylanilines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901409] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Li‐Juan Du
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 People's Republic of China
| | - Ya‐Ping Han
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 People's Republic of China
| | - Hong‐Yu Zhang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 People's Republic of China
| | - Yuecheng Zhang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 People's Republic of China
| | - Jiquan Zhao
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 People's Republic of China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic ChemistryLanzhou University Lanzhou 730000 People's Republic of China
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4
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Ziegler DS, Karaghiosoff K, Knochel P. Generation of Aryl and Heteroaryl Magnesium Reagents in Toluene by Br/Mg or Cl/Mg Exchange. Angew Chem Int Ed Engl 2018; 57:6701-6704. [PMID: 29656503 DOI: 10.1002/anie.201802123] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Indexed: 11/10/2022]
Abstract
The alkylmagnesium alkoxide sBuMgOR⋅LiOR (R=2-ethylhexyl), which was prepared as a 1.5 m solution in toluene, undergoes very fast Br/Mg exchange with aryl and heteroaryl bromides, producing aryl and heteroaryl magnesium alkoxides (ArMgOR⋅LiOR) in toluene. These Grignard reagents react with a broad range of electrophiles, including aldehydes, ketones, allyl bromides, acyl chlorides, epoxides, and aziridines, in good yields. Remarkably, the related reagent sBu2 Mg⋅2 LiOR (R=2-ethylhexyl) undergoes Cl/Mg exchange with various electron-rich aryl chlorides in toluene, producing diorganomagnesium species of type Ar2 Mg⋅2 LiOR, which react well with aldehydes and allyl bromides.
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Affiliation(s)
- Dorothée S Ziegler
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, Haus F, 81377, München, Germany
| | - Konstantin Karaghiosoff
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, Haus F, 81377, München, Germany
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, Haus F, 81377, München, Germany
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5
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Ziegler DS, Karaghiosoff K, Knochel P. Generierung von Aryl‐ und Heteroarylmagnesium‐Reagenzien in Toluol mittels Br/Mg‐ oder Cl/Mg‐Austausch. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802123] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dorothée S. Ziegler
- Department ChemieLudwig-Maximilians-Universität München Butenandtstraße 5–13, Haus F 81377 München Deutschland
| | - Konstantin Karaghiosoff
- Department ChemieLudwig-Maximilians-Universität München Butenandtstraße 5–13, Haus F 81377 München Deutschland
| | - Paul Knochel
- Department ChemieLudwig-Maximilians-Universität München Butenandtstraße 5–13, Haus F 81377 München Deutschland
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6
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Ganiek MA, Becker MR, Berionni G, Zipse H, Knochel P. Barbier Continuous Flow Preparation and Reactions of Carbamoyllithiums for Nucleophilic Amidation. Chemistry 2017; 23:10280-10284. [PMID: 28590518 DOI: 10.1002/chem.201702593] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Indexed: 11/05/2022]
Abstract
An ambient temperature continuous flow method for nucleophilic amidation and thioamidation is described. Deprotonation of formamides by lithium diisopropylamine (LDA) affords carbamoyllithium intermediates that are quenched in situ with various electrophiles such as ketones, allyl bromides, Weinreb and morpholino amides. The nature of the reactive lithium intermediates and the thermodynamics of the metalation were further investigated by ab initio calculations and kinetic experiments.
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Affiliation(s)
- Maximilian A Ganiek
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Matthias R Becker
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Guillaume Berionni
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Hendrik Zipse
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
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7
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Hoang GL, Takacs JM. Enantioselective γ-borylation of unsaturated amides and stereoretentive Suzuki-Miyaura cross-coupling. Chem Sci 2017; 8:4511-4516. [PMID: 28758006 PMCID: PMC5514528 DOI: 10.1039/c7sc01093a] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 04/19/2017] [Indexed: 01/06/2023] Open
Abstract
The rhodium-catalyzed, directed catalytic asymmetric hydroboration of γ,δ-unsaturated amides affords a direct route to chiral acyclic secondary γ-borylated carbonyl derivatives in high enantiomeric purity. In contrast to a similar β-borylated amide derivative, the γ-borylated amide undergoes Suzuki-Miyaura cross-coupling with stereoretention. The utility of the boronic ester products is further illustrated by other stereospecific C-B bond transformations leading to γ-amino acid derivatives, 1,4-amino alcohols, and 5-substituted-γ-lactone and γ-lactam ring systems.
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Affiliation(s)
- Gia L Hoang
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588-0304 , USA .
| | - James M Takacs
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588-0304 , USA .
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8
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Tran G, Hesp KD, Mascitti V, Ellman JA. Base-Controlled Completely Selective Linear or Branched Rhodium(I)-Catalyzed C−H ortho
-Alkylation of Azines without Preactivation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702409] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Gaël Tran
- Department of Chemistry; Yale University; 225 Prospect St. New Haven CT 06520 USA
| | - Kevin D. Hesp
- Pfizer, Inc.; Medicinal Sciences; Groton CT 06340 USA
| | | | - Jonathan A. Ellman
- Department of Chemistry; Yale University; 225 Prospect St. New Haven CT 06520 USA
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9
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Tran G, Hesp KD, Mascitti V, Ellman JA. Base-Controlled Completely Selective Linear or Branched Rhodium(I)-Catalyzed C-H ortho-Alkylation of Azines without Preactivation. Angew Chem Int Ed Engl 2017; 56:5899-5903. [PMID: 28429455 DOI: 10.1002/anie.201702409] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Indexed: 01/23/2023]
Abstract
A [RhI ]/bisphosphine/base catalytic system for the ortho-selective C-H alkylation of azines by acrylates and acrylamides is reported. This catalytic system features an unprecedented complete linear or branched selectivity that is solely dependent on the catalytic base that is used. Complete branched selectivity is even achieved for ethyl methacrylate, which enables the introduction of a quaternary carbon center. Excellent functional group compatibility is demonstrated for both linear and branched alkylations. The operational simplicity and broad scope of this transformation allow for rapid access to functionalized azines of direct pharmaceutical and agrochemical relevance.
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Affiliation(s)
- Gaël Tran
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT, 06520, USA
| | - Kevin D Hesp
- Pfizer, Inc., Medicinal Sciences, Groton, CT, 06340, USA
| | | | - Jonathan A Ellman
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT, 06520, USA
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10
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Dunetz JR, Magano J, Weisenburger GA. Large-Scale Applications of Amide Coupling Reagents for the Synthesis of Pharmaceuticals. Org Process Res Dev 2016. [DOI: 10.1021/op500305s] [Citation(s) in RCA: 411] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Joshua R. Dunetz
- Process
Chemistry, Gilead Sciences, 333 Lakeside Drive, Foster City, California 94404, United States
| | - Javier Magano
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Gerald A. Weisenburger
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
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11
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Trabbic CJ, Overmeyer JH, Alexander EM, Crissman EJ, Kvale HM, Smith MA, Erhardt PW, Maltese WA. Synthesis and biological evaluation of indolyl-pyridinyl-propenones having either methuosis or microtubule disruption activity. J Med Chem 2015; 58:2489-512. [PMID: 25654321 PMCID: PMC4360382 DOI: 10.1021/jm501997q] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Methuosis is a form of nonapoptotic cell death characterized by an accumulation of macropinosome-derived vacuoles with eventual loss of membrane integrity. Small molecules inducing methuosis could offer significant advantages compared to more traditional anticancer drug therapies that typically rely on apoptosis. Herein we further define the effects of chemical substitutions at the 2- and 5-indolyl positions on our lead compound 3-(5-methoxy-2-methyl-1H-indol-3-yl)-1-(4-pyridinyl)-2-propene-1-one (MOMIPP). We have identified a number of compounds that induce methuosis at similar potencies, including an interesting analogue having a hydroxypropyl substituent at the 2-position. In addition, we have discovered that certain substitutions on the 2-indolyl position redirect the mode of cytotoxicity from methuosis to microtubule disruption. This switch in activity is associated with an increase in potency as large as 2 orders of magnitude. These compounds appear to represent a new class of potent microtubule-active anticancer agents.
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Affiliation(s)
- Christopher J Trabbic
- Department of Biochemistry and Cancer Biology, University of Toledo College of Medicine and Life Sciences , 3000 Arlington Avenue, Toledo, Ohio 43614, United States
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12
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Sutariya TR, Labana BM, Parmar NJ, Kant R, Gupta VK, Plata GB, Padrón JM. Efficient synthesis of some new antiproliferative N-fused indoles and isoquinolines via 1,3-dipolar cycloaddition reaction in an ionic liquid. NEW J CHEM 2015. [DOI: 10.1039/c4nj02308k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Triethylammonium acetate (TEAA) as a new, recyclable and environmentally friendly reaction medium for the intramolecular[3+2] cycloaddition reaction.
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Affiliation(s)
| | | | | | - Rajni Kant
- Post-Graduate Department of Physics
- University of Jammu
- Jammu
- India
| | - Vivek K. Gupta
- Post-Graduate Department of Physics
- University of Jammu
- Jammu
- India
| | - Gabriela B. Plata
- BioLab
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG)
- Centro de Investigaciones Biomédicas de Canarias (CIBICAN)
- 38206 La Laguna
- Spain
| | - José M. Padrón
- BioLab
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG)
- Centro de Investigaciones Biomédicas de Canarias (CIBICAN)
- 38206 La Laguna
- Spain
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13
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Weiss M, Peters R. Catalytic Direct Dehydrogenative Cross-Couplings of C–H (Pro)Nucleophiles and Allylic Alcohols without an Additional Oxidant. ACS Catal 2014. [DOI: 10.1021/cs501495g] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Marcel Weiss
- Institut für Organische
Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - René Peters
- Institut für Organische
Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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14
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Zacuto MJ, Dunn RF, Figus M. One-Step Synthesis of 1-Chloro-3-arylacetone Derivatives from Arylacetic Acids. J Org Chem 2014; 79:8917-25. [DOI: 10.1021/jo5016486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael J. Zacuto
- Department of Process Research, Merck Research Laboratory, Rahway, New Jersey 07065, United States
| | - Robert F. Dunn
- Department of Process Research, Merck Research Laboratory, Rahway, New Jersey 07065, United States
| | - Margaret Figus
- Department of Process Research, Merck Research Laboratory, Rahway, New Jersey 07065, United States
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15
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Nuhant P, Allais C, Roush WR. Diisopinocampheylborane-Mediated Reductive Aldol Reactions: Highly Enantio- and Diastereoselective Synthesis ofsynAldols fromN-Acryloylmorpholine. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302535] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Nuhant P, Allais C, Roush WR. Diisopinocampheylborane-mediated reductive aldol reactions: highly enantio- and diastereoselective synthesis of syn aldols from N-acryloylmorpholine. Angew Chem Int Ed Engl 2013; 52:8703-7. [PMID: 23818095 DOI: 10.1002/anie.201302535] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Philippe Nuhant
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, 3A2, Jupiter, FL 33458, USA
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17
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Hegde S, Jayashankaran J, Ghosal A, Prasanna T, Shivaraj Y, Mohana Raju K. A Facile One-Pot Synthesis of Pyrrolo[1, 2-a] Indoles by Intramolecular1,3-Dipolar Cycloaddition under Neat-Microwave Irradiation. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1661] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Atanu Ghosal
- Department of Chemistry; Kalyani University; Kolkota; India
| | - T.S.R Prasanna
- Department of Polymer Science & Technology; S.K. University; Anantapur; Andhra Pradesh; India
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18
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Kern N, Hoffmann M, Blanc A, Weibel JM, Pale P. Gold(I)-catalyzed rearrangement of N-aryl 2-alkynylazetidines to pyrrolo[1,2-a]indoles. Org Lett 2013; 15:836-9. [PMID: 23350973 DOI: 10.1021/ol303518n] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Various N-aryl-2-alkynylazetidines were very efficiently converted to pyrrolo[1,2-a]indoles with gold catalysts, especially the 2-biphenyl-dicyclohexylphosphino-gold(I) hexafluoroantimonate, in dichloromethane at room temperature. Additionally, two formal syntheses of bioactive non-natural compounds, i.e. 7-methoxymitosene and an 5-HT(2C) receptor agonist, have been achieved.
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Affiliation(s)
- Nicolas Kern
- Laboratoire de Synthèse, Réactivité Organiques & Catalyse, associé au CNRS, Institut de Chimie, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
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19
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Schrader TO, Johnson BR, Lopez L, Kasem M, Gharbaoui T, Sengupta D, Buzard D, Basmadjian C, Jones RM. Complementary Asymmetric Routes to (R)-2-(7-Hydroxy-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate. Org Lett 2012; 14:6306-9. [DOI: 10.1021/ol303070k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Thomas O. Schrader
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Benjamin R. Johnson
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Luis Lopez
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Michelle Kasem
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Tawfik Gharbaoui
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Dipanjan Sengupta
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Daniel Buzard
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Christine Basmadjian
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
| | - Robert M. Jones
- Department of Medicinal Chemistry, Arena Pharmaceuticals, 6154 Nancy Ridge Drive, San Diego, California 92121, United States
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20
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Stanley LM, Hartwig JF. Iridium-catalyzed regio- and enantioselective N-allylation of indoles. Angew Chem Int Ed Engl 2009; 48:7841-4. [PMID: 19760689 DOI: 10.1002/anie.200904338] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Levi M Stanley
- Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
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21
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Fuchibe K, Kaneko T, Mori K, Akiyama T. Expedient Synthesis of N-Fused Indoles: A CF Activation and CH Insertion Approach. Angew Chem Int Ed Engl 2009; 48:8070-3. [DOI: 10.1002/anie.200901986] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Fuchibe K, Kaneko T, Mori K, Akiyama T. Expedient Synthesis of N-Fused Indoles: A CF Activation and CH Insertion Approach. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200901986] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Stanley L, Hartwig J. Iridium-Catalyzed Regio- and Enantioselective N-Allylation of Indoles. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200904338] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Pesti J, Chen CK, Spangler L, DelMonte AJ, Benoit S, Berglund D, Bien J, Brodfuehrer P, Chan Y, Corbett E, Costello C, DeMena P, Discordia RP, Doubleday W, Gao Z, Gingras S, Grosso J, Haas O, Kacsur D, Lai C, Leung S, Miller M, Muslehiddinoglu J, Nguyen N, Qiu J, Olzog M, Reiff E, Thoraval D, Totleben M, Vanyo D, Vemishetti P, Wasylak J, Wei C. The Process Development of Ravuconazole: An Efficient Multikilogram Scale Preparation of an Antifungal Agent. Org Process Res Dev 2009. [DOI: 10.1021/op900065c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jaan Pesti
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Chien-Kuang Chen
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Lori Spangler
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Albert J. DelMonte
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Serge Benoit
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Derek Berglund
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Jeffrey Bien
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Paul Brodfuehrer
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Yeung Chan
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Elisabeth Corbett
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Carrie Costello
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Paul DeMena
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Robert P. Discordia
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Wendel Doubleday
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Zhinong Gao
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Stephane Gingras
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - John Grosso
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Oscar Haas
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - David Kacsur
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Chiajen Lai
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Simon Leung
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Melanie Miller
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Jale Muslehiddinoglu
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Nina Nguyen
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Jun Qiu
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Martina Olzog
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Emily Reiff
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Dominique Thoraval
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Michael Totleben
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Dale Vanyo
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Purushotham Vemishetti
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - John Wasylak
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
| | - Chenkou Wei
- Process Research and Development, Bristol-Myers Squibb Pharmaceutical Co., One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey, 08903-0191, U.S.A
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Hogan AML, Tricotet T, Meek A, Khokhar SS, O’Shea DF. Applications of Enantioselective Carbolithiation of Ortho-Substituted β-Methylstyrenes. J Org Chem 2008; 73:6041-4. [DOI: 10.1021/jo800941h] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne-Marie L. Hogan
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Thomas Tricotet
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Alastair Meek
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Shaista S. Khokhar
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Donal F. O’Shea
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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26
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Jautze S, Seiler P, Peters R. Synthesis of Nearly Enantiopure Allylic Amines by Aza-Claisen Rearrangement ofZ-Configured Allylic Trifluoroacetimidates Catalyzed by Highly Active Ferrocenylbispalladacycles. Chemistry 2008; 14:1430-44. [DOI: 10.1002/chem.200701642] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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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.
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Affiliation(s)
- Masahiro Tanaka
- Central Pharmaceutical Research Institute, Japan Tobacco Inc., Takatsuki Osaka 569-1125, Japan
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28
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Affiliation(s)
- Guy R Humphrey
- Department of Process Research, Merck & Co., Inc., Rahway, New Jersey 07065, USA.
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29
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Peters R, Diolez C, Rolland A, Manginot E, Veyrat M. Practical Racemic and Asymmetric Formal Total Syntheses of the Homocamptothecin Derivative and Anticancer Agent Diflomotecan via Tertiary Homoallylic Alcohols as Masked Aldol Equivalents. HETEROCYCLES 2007. [DOI: 10.3987/com-06-s(k)10] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Smith BM, Thomsen WJ, Grottick AJ. The potential use of selective 5-HT2C agonists in treating obesity. Expert Opin Investig Drugs 2006; 15:257-66. [PMID: 16503763 DOI: 10.1517/13543784.15.3.257] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Activation of central 5-HT2C receptors as a strategy for appetite suppression and weight control is supported by animal pharmacology and human clinical studies. Considerable evidence comes from the weight-loss effects of fenfluramine, a non-selective 5-HT2C agonist. Advances in molecular pharmacology have led to an understanding of the effects of 5-HT2C receptor activation on food intake and satiety, in addition to providing insight into the causes of cardiac valvular insufficiency and pulmonary hypertension associated with the use of fenfluramine. However, clinically validated animal models of drug-induced disease and knowledge of the molecular mechanisms of these safety issues is lacking. For this reason, the development of selective 5-HT2C agonists for the treatment of obesity has remained a challenge.
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Affiliation(s)
- Brian M Smith
- Arena Pharmaceuticals Research & Development, San Diego, CA 92121, USA.
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