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Wu J, Gao S, Liao G, Lin H, Nie A. Diastereoselective Synthesis of N,N-Dibenzyl-Protected Aminoalkyl Hydroxyethylamines: Key Building Blocks for Hydroxyethylamine-Based BACE1 Inhibitor. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.572217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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2
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Salter EA, Forbes DC, Wierzbicki A. Relative Stabilities of Transition States Determine Diastereocontrol in Sulfur Ylide Additions onto Chiral N-Sulfinyl Imines. INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY 2012; 112:509-518. [PMID: 22345824 PMCID: PMC3278079 DOI: 10.1002/qua.23020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Additions of methylphenylsulfonium methylide onto chiral non-racemic N-sulfinyl imines (R'-SO-N=CH-R, R'=t-butyl, R=protected diol), followed by ring closure, yield terminal aziridines with high diastereoselectivity. Control reactions have established that both N- and C- iminyl substituents impact product preference, and when properly matched, one addition product is selected almost exclusively. Using solution-phase density functional computational methods, minima and transition state searches have been performed to reveal the structural origins of the diastereoselectivity. Our computational findings indicate that ring closure is fast and irreversible, and consequently, the relative energies of the transition states for the competing Re/Si addition steps determine the product diastereomeric ratios. Analysis of addition transition state structures reveals the causes of selectivity as arising from the N- and C- iminyl substituents, and we identify the S (R) configuration of the N-sulfinyl sulfur atom as the dominant director of Si (Re) addition. The control attributed to the sulfur configuration is tied to an important favorable internal interaction between the sulfinyl oxygen and the iminyl hydrogen. The protected diol acts as a secondary director, owing to steric/electrostatic interactions with the approaching ylide.
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Affiliation(s)
| | | | - Andrzej Wierzbicki
- Author for correspondence: Department of Chemistry, University of South Alabama, Mobile, AL 36688, (251) 460-7436, FAX: (251) 460-7359,
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Forbes DC, Bettigeri SV, Pischek SC. Highly stereoselective methylene transfers onto butanediacetal-protected chiral non-racemic sulfinyl imines using S-ylide technology. Chem Commun (Camb) 2009:1882-4. [PMID: 19319433 DOI: 10.1039/b822779a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diastereomeric ratios of >95 : 5 were obtained when performing methylene transfers onto imines originating from d-mannitol and (S)-(-)-2-methyl-2-propane sulfinamide or ascorbic acid and (R)-(-)-2-methyl-2-propane sulfinamide.
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Affiliation(s)
- David C Forbes
- Department of Chemistry, University of South Alabama, Mobile, AL 36688, USA.
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4
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Torrado A. Stereoselective synthesis of aminoethylamine aspartyl protease transition state isosteres. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.07.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Chakraborty TK, Dutta S. Synthesis of a New C2-Symmetric Molecule with Dimeric Hydroxyethylene Isosteric Moiety. SYNTHETIC COMMUN 2006. [DOI: 10.1080/00397919708005464] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- T. K. Chakraborty
- a Indian Institute of Chemical Technology , Hyderabad , 500 007 , India
| | - S. Dutta
- a Indian Institute of Chemical Technology , Hyderabad , 500 007 , India
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6
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Suzuki T, Honda Y, Izawa K. An efficient synthesis of N-protected threo (2R,3S)-3-amino-1,2-epoxy phenylbutane. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.06.134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Mena M, Bonjoch J. Model studies in the lepadin series: synthesis of enantiopure decahydroquinolines by aminocyclization of 2-(3-aminoalkyl)cyclohexenones. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.06.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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9
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Badorrey R, Cativiela C, Dı́az-de-Villegas MD, Gálvez JA. Highly convergent stereoselective synthesis of chiral key intermediates in the synthesis of Palinavir from imines derived from l-glyceraldehyde. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(01)01152-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Hoffman RV, Weiner WS, Maslouh N. Highly stereoselective synthesis of anti-N-protected-alpha-amino epoxides. J Org Chem 2001; 66:5790-5. [PMID: 11511253 DOI: 10.1021/jo010319h] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple and efficient method for the synthesis of anti-N-protected amino epoxides from carbamate-protected amino acids is described. The two key steps are the monobromination of a beta-ketoester and chelation-controlled reduction of a bromomethyl ketone intermediate. Good overall yields, high diastereoselectivity, and excellent functional group compatibility are characteristic.
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Affiliation(s)
- R V Hoffman
- Department of Chemistry and Biochemistry, New Mexico State University, North Horseshoe Drive, Las Cruces, New Mexico 88003-8001, USA.
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11
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Perlman N, Livneh M, Albeck A. Epoxidation of Peptidyl Olefin Isosteres. Stereochemical Induction Effect of Chiral Centers at Four Adjacent Cα Positions. Tetrahedron 2000. [DOI: 10.1016/s0040-4020(00)00036-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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12
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Kurihara M, Ishii K, Kasahara Y, Miyata N. Stereoselective synthesis of an erythro N-protected α-amino epoxide derivative. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00409-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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14
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Reetz MT, Schmitz A. Stereoselective reductive amination of chiral N,N-dibenzylamino ketones. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00360-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Gau AH, Lin GL, Uang BJ, Liao FL, Wang SL. Regio- and Diastereoselective Ene Reaction of 4-Phenyl-1,2,4-triazoline-3,5-dione with Chiral Allylic Alcohols and Their Derivatives. J Org Chem 1999. [DOI: 10.1021/jo980835g] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ay-Hua Gau
- Department of Chemistry, and Instrumentation Center, National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China
| | - Guey-Liang Lin
- Department of Chemistry, and Instrumentation Center, National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China
| | - Biing-Jiun Uang
- Department of Chemistry, and Instrumentation Center, National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China
| | - Fen-Ling Liao
- Department of Chemistry, and Instrumentation Center, National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China
| | - Sue-Lein Wang
- Department of Chemistry, and Instrumentation Center, National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China
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Concellón JM, Bernad PL, Pérez-Andrés JA. Iodomethylation of Chiral α-Amino Aldehydes by Means of Samarium/Diiodomethane. Application to the Synthesis of Various Enantiomerically Pure Compounds. J Org Chem 1997. [DOI: 10.1021/jo970318i] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- José M. Concellón
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica, Facultad de Química, Universidad de Oviedo, Julián Clavería, 8, 33071 Oviedo, Spain
| | - Pablo L. Bernad
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Julián Clavería, 8, 33071 Oviedo, Spain
| | - Juan A. Pérez-Andrés
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Julián Clavería, 8, 33071 Oviedo, Spain
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Aggarwal VK, Ali A, Coogan MP. A Novel Procedure for the Synthesis of Epoxides: Application of Simmons−Smith Reagents toward Epoxidation. J Org Chem 1997. [DOI: 10.1021/jo971773h] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Varinder K. Aggarwal
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
| | - Amjad Ali
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
| | - Michael P. Coogan
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
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Li AH, Dai LX, Aggarwal VK. Asymmetric Ylide Reactions: Epoxidation, Cyclopropanation, Aziridination, Olefination, and Rearrangement. Chem Rev 1997; 97:2341-2372. [PMID: 11848902 DOI: 10.1021/cr960411r] [Citation(s) in RCA: 663] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- An-Hu Li
- Department of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, The United Kingdom
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Bonjoch J, Catena J, Terricabras D, Fernàndez JC, López-Canet M, Valls N. Synthesis of enantiopure (2R,3aS,7aS)-2-ethyloctahydroindol-6-one and its fischer indolization. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0957-4166(97)00379-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Albeck A, Estreicher GI. Functionalized erythro N-protected α-amino epoxides. Stereocontrolled synthesis and biological activity. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)00195-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Asymmetric dihydroxylation of chiral γ-amino α,β-unsaturated esters: Turning the mismatched into the matched case via protective group tuning. Tetrahedron Lett 1996. [DOI: 10.1016/s0040-4039(97)82945-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Beaulieu PL, Wernic D. Preparation of Aminoalkyl Chlorohydrin Hydrochlorides: Key Building Blocks for Hydroxyethylamine-Based HIV Protease Inhibitors. J Org Chem 1996; 61:3635-3645. [PMID: 11667209 DOI: 10.1021/jo960109i] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enantiomerically pure N,N-dibenzyl-alpha-amino aldehydes reacted with (chloromethyl)lithium, generated in situ from bromochloromethane and lithium metal, to give predominantly erythro aminoalkyl epoxides. Treatment of the crude epoxides with aqueous hydrochloric acid gave crystalline (2S,3S)-N,N-dibenzylamino chlorohydrin hydrochlorides in 32-56% overall yield and high isomeric purity. These compounds are versatile synthetic intermediates for the preparation of hydroxyethylamine-based HIV protease inhibitors, either directly as such, or via conversion to the corresponding N-Boc-(2S,3S)-aminoalkyl epoxides. The processes described do not make use of hazardous reagents or intermediates, do not require chromatographic purifications, and are thus amenable to the preparation of large quantities of these versatile building blocks.
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Affiliation(s)
- Pierre L. Beaulieu
- Bio-Méga/Boehringer Ingelheim Research Inc., 2100 Cunard Street, Laval (Québec), Canada, H7S 2G5
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23
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Hanessian S, Devasthale PV. Generation of functional diversity via nitroaldol condensations of α-aminoacid aldehydes — A new and stereocontrolled route to acyclic 1,3-diamino-2-alcohols. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(95)02359-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Beaulieu PL, Wernic D, Duceppe JS, Guindon Y. Large scale preparation of (2S,3S)-N-Boc-3-amino-1,2-epoxy-4-phenylbutane: A key building block for HIV-protease inhibitors. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00533-i] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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25
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Pégorier L, Larchevêque M. A general stereocontrolled synthesis of hydroxyethylene dipeptide isosteres. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00357-i] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Castejón P, Pastó M, Moyano A, Pericàs MA, Riera A. A convenient, stereodivergent approach to the enantioselective synthesis of N-Boc-aminoalkyl epoxides. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00415-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Pégorier L, Petit Y, Larchevêque M. A synthetic route to anti aminoalkyl epoxides by stereocontrolled reductive amination of ketoepoxides. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/c39940000633] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Barluenga J, BaragañA B, Alonso A, Concellón JM. The first direct preparation of chiral functionalised ketones and their synthetic uses. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/c39940000969] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Urabe H, Aoyama Y, Sato F. Ring opening of the epoxide moiety of (2S, 3S, 4S)-4-amino-2,3-epoxy-1-alkanol and its derivatives: A key role of Ti(O-i-Pr)4 as a mild catalyst. Tetrahedron 1992. [DOI: 10.1016/0040-4020(92)80014-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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30
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Reetz MT. Neue Wege zur Nutzung von Aminosäuren als chirale Bausteine in der organischen Synthese. Angew Chem Int Ed Engl 1991. [DOI: 10.1002/ange.19911031204] [Citation(s) in RCA: 103] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Gołȩbiowski A, Raczko J, Jacobsson U, Jurczak J. Influence of N-protecting groups on the stereochemical course of [4+2] cycloaddition of activated dienes to α-amino aldehydes. Tetrahedron 1991. [DOI: 10.1016/s0040-4020(01)80943-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Winterfeldt E. Preparation of Homochiral Organic Compounds. Chirality 1991. [DOI: 10.1007/978-3-642-76569-8_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Reetz M, Drewes M, Lennick K, Schmitz A, Holdgrün X. Non-racemizing synthesis and stereoselective reduction of chiral α-amino ketones. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0957-4166(90)90037-b] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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35
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Three-Membered Ring Systems. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/b978-0-08-037070-5.50007-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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37
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Newcomb M, Udaya Kumar M. N-Hydroxypyridine-2-thione carbamates. VII. Intermolecular addition and addition-cyclization reactions of aminium cation radicals. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)88851-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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