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Laha JK, Panday S, Tomar M, Patel KV. Possible competitive modes of decarboxylation in the annulation reactions of ortho-substituted anilines and arylglyoxylates. Org Biomol Chem 2021; 19:845-853. [DOI: 10.1039/d0ob00360c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Annulation reactions of ortho-substituted anilines and arylglyoxylates to the tandem synthesis of nitrogen heterocycles in the presence of K2S2O8 have been investigated, which occur via decarboxylation before or after the reaction with anilines.
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Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical Technology (Process Chemistry)
- National Institute of Pharmaceutical Education and Research
- S. A. S. Nagar
- India
| | - Surabhi Panday
- Department of Pharmaceutical Technology (Process Chemistry)
- National Institute of Pharmaceutical Education and Research
- S. A. S. Nagar
- India
| | - Monika Tomar
- Department of Pharmaceutical Technology (Process Chemistry)
- National Institute of Pharmaceutical Education and Research
- S. A. S. Nagar
- India
| | - Ketul V. Patel
- Department of Pharmaceutical Technology (Process Chemistry)
- National Institute of Pharmaceutical Education and Research
- S. A. S. Nagar
- India
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2
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Alazet S, Preindl J, Simonet-Davin R, Nicolai S, Nanchen A, Meyer T, Waser J. Cyclic Hypervalent Iodine Reagents for Azidation: Safer Reagents and Photoredox-Catalyzed Ring Expansion. J Org Chem 2018; 83:12334-12356. [DOI: 10.1021/acs.joc.8b02068] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sebastien Alazet
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, CH-1015 Lausanne, Switzerland
| | - Johannes Preindl
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, CH-1015 Lausanne, Switzerland
| | - Raphael Simonet-Davin
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, CH-1015 Lausanne, Switzerland
| | - Stefano Nicolai
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, CH-1015 Lausanne, Switzerland
| | - Annik Nanchen
- Process Safety, TÜV SÜD Schweiz AG, CH-4002 Basel, Switzerland
| | - Thierry Meyer
- Group of Chemical and Physical Safety, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, CH-1015 Lausanne, Switzerland
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3
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Aderibigbe BA, Green IR, Mabank T, Janse van Rensburg M, Morgans GL, Fernandes MA, Michael JP, van Otterlo WA. Observations concerning the synthesis of heteroatom-containing 9-membered benzo-fused rings by ring-closing metathesis. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Temperini A, Piazzolla F, Minuti L, Curini M, Siciliano C. General, Mild, and Metal-Free Synthesis of Phenyl Selenoesters from Anhydrides and Their Use in Peptide Synthesis. J Org Chem 2017; 82:4588-4603. [PMID: 28414443 DOI: 10.1021/acs.joc.7b00173] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A mild, practical, and simple procedure for phenyl selenoesters synthesis from several anhydrides and diphenyl diselenide was developed. This transition-metal-free method provides a straightforward entry to storable Fmoc-amino acid selenoesters which are effective chemoselective acylating reagents. An application to oligopeptide synthesis was illustrated.
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Affiliation(s)
- Andrea Temperini
- Dipartimento di Scienze Farmaceutiche, Università di Perugia , Via del Liceo 1, 06123 Perugia, Italy
| | - Francesca Piazzolla
- Dipartimento di Scienze Farmaceutiche, Università di Perugia , Via del Liceo 1, 06123 Perugia, Italy
| | - Lucio Minuti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Massimo Curini
- Dipartimento di Scienze Farmaceutiche, Università di Perugia , Via del Liceo 1, 06123 Perugia, Italy
| | - Carlo Siciliano
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria, Edificio Polifunzionale , 87030 Arcavacata di Rende, Cosenza, Italy
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5
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Guérin D, Dez I, Gaumont AC, Pannecoucke X, Couve-Bonnaire S. Access to Constrained Fluoropseudopeptides via Ring-Closing Metathesis of Fluoroalkenes. Org Lett 2016; 18:3606-9. [DOI: 10.1021/acs.orglett.6b01631] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David Guérin
- Normandie Université, ENSICAEN, Unicaen, CNRS,
LCMT, 14000 Caen, France
| | - Isabelle Dez
- Normandie Université, ENSICAEN, Unicaen, CNRS,
LCMT, 14000 Caen, France
| | | | - Xavier Pannecoucke
- Normandie Université, INSA Rouen, UNIROUEN,
CNRS, COBRA, 76000 Rouen, France
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Loeffler JR, Ehmki ESR, Fuchs JE, Liedl KR. Kinetic barriers in the isomerization of substituted ureas: implications for computer-aided drug design. J Comput Aided Mol Des 2016; 30:391-400. [PMID: 27272323 PMCID: PMC4912590 DOI: 10.1007/s10822-016-9913-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 05/02/2016] [Indexed: 11/25/2022]
Abstract
Urea derivatives are ubiquitously found in many chemical disciplines. N,N'-substituted ureas may show different conformational preferences depending on their substitution pattern. The high energetic barrier for isomerization of the cis and trans state poses additional challenges on computational simulation techniques aiming at a reproduction of the biological properties of urea derivatives. Herein, we investigate energetics of urea conformations and their interconversion using a broad spectrum of methodologies ranging from data mining, via quantum chemistry to molecular dynamics simulation and free energy calculations. We find that the inversion of urea conformations is inherently slow and beyond the time scale of typical simulation protocols. Therefore, extra care needs to be taken by computational chemists to work with appropriate model systems. We find that both knowledge-driven approaches as well as physics-based methods may guide molecular modelers towards accurate starting structures for expensive calculations to ensure that conformations of urea derivatives are modeled as adequately as possible.
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Affiliation(s)
- Johannes R Loeffler
- Institute of General, Inorganic and Theoretical Chemistry, Faculty of Chemistry and Pharmacy, University of Innsbruck, Innrain 82, 6020, Innsbruck, Austria
| | - Emanuel S R Ehmki
- Institute of General, Inorganic and Theoretical Chemistry, Faculty of Chemistry and Pharmacy, University of Innsbruck, Innrain 82, 6020, Innsbruck, Austria
| | - Julian E Fuchs
- Institute of General, Inorganic and Theoretical Chemistry, Faculty of Chemistry and Pharmacy, University of Innsbruck, Innrain 82, 6020, Innsbruck, Austria.
| | - Klaus R Liedl
- Institute of General, Inorganic and Theoretical Chemistry, Faculty of Chemistry and Pharmacy, University of Innsbruck, Innrain 82, 6020, Innsbruck, Austria
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7
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Nguyen HH, Pham CT, Abram U. Rhenium and Technetium Complexes with Pentadentate Thiocarbamoylbenzamidines: Steps toward Bioconjugation. Inorg Chem 2015; 54:5949-59. [DOI: 10.1021/acs.inorgchem.5b00769] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hung Huy Nguyen
- Department of Chemistry, Hanoi University of Science, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Chien Thang Pham
- Department of Chemistry, Hanoi University of Science, 19 Le Thanh Tong, Hanoi, Vietnam
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany
| | - Ulrich Abram
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany
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Brady RM, Vom A, Roy MJ, Toovey N, Smith BJ, Moss RM, Hatzis E, Huang DCS, Parisot JP, Yang H, Street IP, Colman PM, Czabotar PE, Baell JB, Lessene G. De-novo designed library of benzoylureas as inhibitors of BCL-XL: synthesis, structural and biochemical characterization. J Med Chem 2014; 57:1323-43. [PMID: 24456288 DOI: 10.1021/jm401948b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The prosurvival BCL-2 proteins are attractive yet challenging targets for medicinal chemists. Their involvement in the initiation and progression of many, if not all, tumors makes them prime targets for developing new anticancer therapies. We present our approach based on de novo structure-based drug design. Using known structural information from complexes engaging opposing members of the BCL-2 family of proteins, we designed peptidomimetic compounds using a benzoylurea scaffold to reproduce key interactions between these proteins. A library stemming from the initial de novo designed scaffold led to the discovery of ligands with low micromolar potency (KD = 4 μM) and selectivity for BCL-XL. These compounds bind in the canonical BH3 binding groove in a binding mode distinct from previously known BCL-2 inhibitors. The results of our study provide insight into the design of a new class of antagonists targeting a challenging class of protein-protein interactions.
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Affiliation(s)
- Ryan M Brady
- The Walter and Eliza Hall Institute of Medical Research , 1G Royal Parade, Parkville, Victoria 3052, Australia
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2011. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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De novo design and synthesis of a μ-conotoxin KIIIA peptidomimetic. Bioorg Med Chem Lett 2013; 23:4892-5. [DOI: 10.1016/j.bmcl.2013.06.086] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 06/14/2013] [Accepted: 06/27/2013] [Indexed: 11/20/2022]
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12
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Bergen A, Bohne C, Fuentealba D, Ihmels H, Pace TCS, Waidelich M, Yihwa C, Willem Bats J. Studies of the solvatochromic emission properties of N-aroylurea derivatives I: Influence of the substitution pattern. Photochem Photobiol Sci 2012; 11:752-67. [DOI: 10.1039/c2pp05386a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Brady RM, Hatzis E, Connor T, Street IP, Baell JB, Lessene G. Synthesis of conformationally constrained benzoylureas as BH3-mimetics. Org Biomol Chem 2012; 10:5230-7. [DOI: 10.1039/c2ob25618e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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