1
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Borrego LG, Recio R, Moreno N, Chelouan A, Álvarez E, Sánchez-Coronilla A, Caro C, Pearson JR, García-Martín ML, Khiar N, Fernández I. Enantioselective synthesis of 4-amino-3,4-dihydrocoumarins and their non-cyclic hydroxyester precursors: Biological evaluation for the treatment of glioblastoma multiforme. Eur J Med Chem 2022; 243:114730. [DOI: 10.1016/j.ejmech.2022.114730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/04/2022]
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2
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Zheng B, Ortiz A, Guerrero CA, Luzung MR, Zhu J, Schmidt MA, Eastgate MD. Stereoselective Synthesis of a Tubulysin Core for Antibody–Drug Conjugate Studies. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bin Zheng
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Adrian Ortiz
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Carlos A. Guerrero
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michael R. Luzung
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Jason Zhu
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michael A. Schmidt
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Martin D. Eastgate
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
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3
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Nie XD, Mao ZY, Zhou W, Si CM, Wei BG, Lin GQ. A diastereoselective approach to amino alcohols and application for divergent synthesis of dolastatin 10. Org Chem Front 2020. [DOI: 10.1039/c9qo01292c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A diastereoselective approach to obtain amino alcohols through SmI2-induced radical addition and divergent synthesis of dolastatin 10 are described.
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Affiliation(s)
- Xiao-Di Nie
- Institutes of Biomedical Sciences and School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Zhuo-Ya Mao
- Institutes of Biomedical Sciences and School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Wen Zhou
- Institutes of Biomedical Sciences and School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Chang-Mei Si
- Institutes of Biomedical Sciences and School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Bang-Guo Wei
- Institutes of Biomedical Sciences and School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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4
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Lahosa A, Foubelo F, Yus M. One-Pot Synthesis ofN-tert-Butylsulfinylimines and Homoallylamine Derivatives from Epoxides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600612] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Alejandro Lahosa
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Instituto de Síntesis Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Francisco Foubelo
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Instituto de Síntesis Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Miguel Yus
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
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5
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Coffinet M, Lamy S, Jaroschik F, Vasse JL. Cyclopent-2-enylaluminium as allylzinc precursor for the diastereoselective allylmetallation of non-racemic imines: applications to the synthesis of enantiomerically enriched heterocycles. Org Biomol Chem 2016; 14:69-73. [PMID: 26563731 DOI: 10.1039/c5ob02184g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The generation of cyclopent-2-enylzinc from cyclopentadiene based on a titanium-catalyzed hydroalumination/transmetallation sequence is described. Applied to the allylmetallation of phenylglycinol-derived imines, this sequence leads to homoallylic amines with moderate to good stereoselectivities. The synthesis of disubstituted azetidines and piperidines illustrates the potential of the method.
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Affiliation(s)
- Michaël Coffinet
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 7312) and Université de Reims, 51687 Reims Cedex 2, France.
| | - Samantha Lamy
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 7312) and Université de Reims, 51687 Reims Cedex 2, France.
| | - Florian Jaroschik
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 7312) and Université de Reims, 51687 Reims Cedex 2, France.
| | - Jean-Luc Vasse
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 7312) and Université de Reims, 51687 Reims Cedex 2, France.
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6
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Lau SH, Bourne SL, Martin B, Schenkel B, Penn G, Ley SV. Synthesis of a Precursor to Sacubitril Using Enabling Technologies. Org Lett 2015; 17:5436-9. [DOI: 10.1021/acs.orglett.5b02806] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shing-Hing Lau
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Samuel L. Bourne
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | | | | | - Gerhard Penn
- Novartis
Pharma
AG, Postfach, 4002 Basel, Switzerland
| | - Steven V. Ley
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
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7
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Highly diastereoselective addition of chiral H-phosphonate to tert-butylsulfinyl aldimines: a convenient approach to (R)-α-aminophosphonic acids. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Rousseau G, Lebeuf R, Schenk K, Castet F, Robert F, Landais Y. Base-catalyzed intramolecular hydroamination of cyclohexa-2,5-dienes: insights into the mechanism through DFT calculations and application to the total synthesis of epi-elwesine. Chemistry 2014; 20:14771-82. [PMID: 25223607 DOI: 10.1002/chem.201403662] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/10/2014] [Indexed: 11/08/2022]
Abstract
The base-catalyzed intramolecular hydroamination of 1-ethylaminocyclohexa-2,5-dienes is described. The transformation proceeds through isomerization of the cyclohexa-1,4-dienyl fragment into the corresponding conjugated 1,3-diene prior to the hydroamination step. Attaching a chiral glycinol ether auxiliary on the amino group allows the protonation to occur with complete diastereocontrol. The resulting lithium amide then adds onto the 1,3-dienyl moiety, affording the desired fused pyrrolidine ring along with the corresponding lithium allylic anion. Protonation of the latter then proceeds with high regiocontrol to favor the resulting allylic amines. In contrast, when the reaction was performed on primary amines, fused pyrrolidines bearing a homoallylic amino group were obtained. The stereochemical course of the process and determination of the reaction pathways were established based on calculations performed at the DFT level. Finally, application of the methodology to the enantioselective synthesis of (+)-epi-elwesine, a crinane alkaloid, is described.
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Affiliation(s)
- Géraldine Rousseau
- ISM, UMR 5255, University of Bordeaux and CNRS, 351, Cours de la liberation, 33400 Talence Cedex (France)
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9
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Fustero S, Herrera L, Lázaro R, Rodríguez E, Maestro MA, Mateu N, Barrio P. Base-dependent stereodivergent intramolecular aza-Michael reaction: asymmetric synthesis of 1,3-disubstituted isoindolines. Chemistry 2013; 19:11776-85. [PMID: 23852920 DOI: 10.1002/chem.201301591] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Indexed: 11/11/2022]
Abstract
The nucleophilic addition (A(N)) / intramolecular aza-Michael reaction (IMAMR) process on Ellman's tert-butylsulfinyl imines, bearing a Michael acceptor in the ortho position, is studied. This reaction affords 1,3-disubstituted isoindolines with a wide range of substituents in good yields and diastereoselectivities. Interestingly, careful choice of the base for the aza-Michael step allows either the cis or the trans diastereoisomers to be exclusively obtained. This stereodivergent cyclization has enabled the synthesis of C2-symmetric bisacetate-substituted isoindolines. In addition, bisacetate isoindolines bearing two well-differentiated ester moieties are also noteworthy because they may allow for the orthogonal synthesis of β,β'-dipeptides using a single nitrogen atom as a linchpin.
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Affiliation(s)
- Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain.
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10
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Xiong Y, Mei H, Xie C, Han J, Li G, Pan Y. Asymmetric synthesis of α-alkenyl homoallylic primary amines via 1,2-addition of Grignard reagent to α,β-unsaturated phosphonyl imines. RSC Adv 2013; 3:15820-15826. [PMID: 24159373 DOI: 10.1039/c3ra42927j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A series of chiral N-phosphonyl protected α-alkenyl homoallylic primary amines were synthesized by asymmetric addition of allylmagnesium bromide Grignard reagent towards chiral α,β-unsaturated imines. Only 1,2-adduct was obtained for all the imines with good yields and excellent diastereoselectivities. The chiral auxiliary could be easily removed under simple conditions, giving free multiple functionalized primary amines.
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Affiliation(s)
- Yiwen Xiong
- School of Chemistry and Chemical Engineering, State of Key Laboratory of Coordination, Nanjing University, Nanjing, 210093, China
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11
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Morris WJ, Muppalla KK, Cowden C, Ball RG. Stereoselective Addition of 2-Phenyloxazol-4-yl Trifluoromethanesulfonate to N-Sulfinyl Imines: Application to the Synthesis of the HCV Protease Inhibitor Boceprevir. J Org Chem 2012; 78:706-10. [DOI: 10.1021/jo301856f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- William J. Morris
- Department of Process Research, Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | - Kiran K. Muppalla
- Department of Process Research, Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | - Cameron Cowden
- Department of Process Research, Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | - Richard G. Ball
- Department of Process Research, Merck Research Laboratories, Rahway, New Jersey 07065,
United States
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12
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Collados JF, Toledano E, Guijarro D, Yus M. Microwave-Assisted Solvent-Free Synthesis of Enantiomerically Pure N-(tert-Butylsulfinyl)imines. J Org Chem 2012; 77:5744-50. [DOI: 10.1021/jo300919x] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juan F. Collados
- Departamento de Química Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - Estefanía Toledano
- Departamento de Química Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - David Guijarro
- Departamento de Química Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - Miguel Yus
- Departamento de Química Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
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13
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Murai T, Mutoh Y. Thioamides and Thioformamides for Sequential Reactions with Organolithium and Grignard Reagents. CHEM LETT 2012. [DOI: 10.1246/cl.2012.2] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Toshiaki Murai
- Department of Chemistry, Faculty of Engineering, Gifu University
| | - Yuichiro Mutoh
- Department of Chemistry, Faculty of Engineering, Gifu University
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14
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Bennett NJ, Elliott MC, Hewitt NL, Kariuki BM, Morton CA, Raw SA, Tomasi S. Diastereoselective alkylation reactions of 1-methylcyclohexa-2,5-diene-1-carboxylic acid. Org Biomol Chem 2012; 10:3859-65. [DOI: 10.1039/c2ob25211b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Asymmetric synthesis of diverse α,α-diarylmethylamines via aryl Grignard additions to chiral N-2,4,6-triisopropylbenzenesulfinylimines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.07.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Chou CM, Chatterjee I, Studer A. Stereospecific Palladium-Catalyzed Decarboxylative C(sp3)C(sp2) Coupling of 2,5-Cyclohexadiene-1-carboxylic Acid Derivatives with Aryl Iodides. Angew Chem Int Ed Engl 2011; 50:8614-7. [DOI: 10.1002/anie.201103450] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Indexed: 11/07/2022]
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17
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Cao HT, Roisnel T, Valleix A, Grée R. A Tandem Isomerization-Mannich Reaction for the Enantioselective Synthesis of β-Amino Ketones and β-Amino Alcohols with Applications as Key Intermediates for ent-Nikkomycins and ent-Funebrine. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100352] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Robak MT, Herbage MA, Ellman JA. Synthesis and applications of tert-butanesulfinamide. Chem Rev 2010; 110:3600-740. [PMID: 20420386 DOI: 10.1021/cr900382t] [Citation(s) in RCA: 904] [Impact Index Per Article: 64.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- MaryAnn T Robak
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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19
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Dunet J, Lebeuf R, Bose G, Robert F, Landais Y. Straightforward assembly of the octahydroisoquinoline core of morphinan alkaloids. Org Lett 2010; 12:2178-81. [PMID: 20405954 DOI: 10.1021/ol1004627] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The octahydroisoquinoline core of morphinan was assembled starting from readily available arylcyclohexadienes. Three different approaches were developed, including a metal- and an acid-mediated Mannich type process and an anionic-mediated cyclization. All provided the desired motif as a single diastereomer having a C9-C13-C14 trans-cis relative configuration.
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Affiliation(s)
- Julie Dunet
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351, cours de la libération, 33405 Talence cedex 05, France
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20
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Diastereoselective Desymmetrization of Symmetric Dienes and its Synthetic Application. Symmetry (Basel) 2010. [DOI: 10.3390/sym2020437] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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21
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Rousseau G, Robert F, Landais Y. Functionalization and Rearrangement of Spirocyclohexadienyl Oxindoles: Experimental and Theoretical Investigations. Chemistry 2009; 15:11160-73. [DOI: 10.1002/chem.200901434] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Errasti G, Koundé C, Mirguet O, Lecourt T, Micouin L. Desymmetrization of hydrazinocyclohexadienes: a new approach for the synthesis of polyhydroxylated aminocyclohexanes. Org Lett 2009; 11:2912-5. [PMID: 19469517 DOI: 10.1021/ol900779v] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydrazinocyclohexadienes, easily prepared by an ene-reaction between commercially available azodicarboxylate reagents and cyclohexadiene, are interesting substrates for desymmetrization reactions. Under Sharpless asymmetric dihydroxylation conditions, they can lead efficiently to several chiral building blocks as well as advanced precursors of biologically active compounds.
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Affiliation(s)
- Gauthier Errasti
- Laboratoire de Chimie Thérapeutique, UMR 8638 associée au CNRS et à l'Université Paris Descartes, Faculté des Sciences Pharmaceutiques et Biologiques, 4 av de l'Observatoire, 75270 Paris cedex 06, France
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23
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Ferreira F, Botuha C, Chemla F, Pérez-Luna A. tert-Butanesulfinimines: structure, synthesis and synthetic applications. Chem Soc Rev 2009; 38:1162-86. [PMID: 19421587 DOI: 10.1039/b809772k] [Citation(s) in RCA: 288] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since Ellman's seminal works, over the past ten years tert-butanesulfinimines have proved to be useful chiral amino intermediates for organic synthesis. Through highly stereoselective reactions, amongst which reductions, nucleophilic 1,2-additions and ylide condensations, a broad range of nitrogen-containing compounds has been synthesized. Although the stereoselectivity levels are high in most cases, the sense of the stereoinduction is generally not predictable. The object of this critical review is to present the models proposed to rationalize the stereochemical outcome of the reactions involving tert-butanesulfinimines and to point out an obvious lack of homogeneity amongst them (128 references).
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Affiliation(s)
- Franck Ferreira
- UPMC Univ Paris 06, UMR 7611, Laboratoire de Chimie Organique, Institut de Chimie Moléculaire (FR 2769), case 183, 4 place Jussieu, F-75005, Paris, France.
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24
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Viso A, Fernández de la Pradilla R, Ureña M, Colomer I. Highly Diastereoselective Addition of Lithio Vinyl Sulfoxides to N-Sulfinimines: An Entry to Enantiopure 3-Sulfinyl-2,5-cis-dihydropyrroles. Org Lett 2008; 10:4775-8. [DOI: 10.1021/ol801878f] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alma Viso
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | | | - Mercedes Ureña
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Ignacio Colomer
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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25
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Rousseau G, Robert F, Schenk K, Landais Y. Rearrangement of spirocyclic oxindoles with lithium amide bases. Org Lett 2008; 10:4441-4. [PMID: 18783229 DOI: 10.1021/ol8016885] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Spirocyclohexa-2,5-dienes were shown to rearrange at -40 degrees C, when treated with 1 equiv of LDA. Alkyl halides and aldehydes then reacted with the resulting phenanthridinone lithium enolate intermediates, with distinct regioselectivities and high diastereocontrol, to afford functionalized dearomatized phenanthridinones which were elaborated further. A mechanistic scheme involving a diisopropylamine-mediated proton transfer was proposed to rationalize the rearrangement.
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Affiliation(s)
- Géraldine Rousseau
- University Bordeaux 1, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351, cours de la libération, 33405 Talence cedex 05, France
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26
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Reddy LR, Hu B, Prashad M, Prasad K. Asymmetric Synthesis of Homoallylic Amines Bearing Adjacent Stereogenic Centers by Addition of Substituted Allylic Zinc Reagents to N-tert-Butanesulfinylimines. Org Lett 2008; 10:3109-12. [DOI: 10.1021/ol800998u] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Leleti Rajender Reddy
- Chemical and Analytical Development, Novartis Pharmaceuticals Corporation, One Health Plaza, East Hanover, New Jersey 07936
| | - Bin Hu
- Chemical and Analytical Development, Novartis Pharmaceuticals Corporation, One Health Plaza, East Hanover, New Jersey 07936
| | - Mahavir Prashad
- Chemical and Analytical Development, Novartis Pharmaceuticals Corporation, One Health Plaza, East Hanover, New Jersey 07936
| | - Kapa Prasad
- Chemical and Analytical Development, Novartis Pharmaceuticals Corporation, One Health Plaza, East Hanover, New Jersey 07936
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27
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Kang TR, Xie JW, Du W, Feng X, Chen YC. Stereoselective desymmetrisation of prochiral α,α-dicyanoalkenes via domino Michael–Michael addition reactions. Org Biomol Chem 2008; 6:2673-5. [DOI: 10.1039/b809308c] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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