151
|
Aitken DJ, Drouin L, Goretta S, Guillot R, Ollivier J, Spiga M. Stereoselective preparation of β,γ-methano-GABA derivatives. Org Biomol Chem 2011; 9:7517-24. [DOI: 10.1039/c1ob06095c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
152
|
Mitsunuma H, Matsunaga S. Dinuclear Ni2–Schiff base complex-catalyzed asymmetric 1,4-addition of β-keto esters to nitroethylene toward γ2,2-amino acid synthesis. Chem Commun (Camb) 2011; 47:469-71. [DOI: 10.1039/c0cc02152k] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
153
|
Szakonyi Z, Balázs Á, Martinek TA, Fülöp F. Stereoselective synthesis of pinane-based β- and γ-amino acids via conjugate addition of lithium amides and nitromethane. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
154
|
Vasudev PG, Chatterjee S, Shamala N, Balaram P. Structural Chemistry of Peptides Containing Backbone Expanded Amino Acid Residues: Conformational Features of β, γ, and Hybrid Peptides. Chem Rev 2010; 111:657-87. [DOI: 10.1021/cr100100x] [Citation(s) in RCA: 273] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Prema. G. Vasudev
- Department of Physics and Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
| | - Sunanda Chatterjee
- Department of Physics and Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
| | - Narayanaswamy Shamala
- Department of Physics and Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
| | - Padmanabhan Balaram
- Department of Physics and Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
| |
Collapse
|
155
|
Felluga F, Ghelfi F, Pitacco G, Roncaglia F, Valentin E, Venneri CD. Esterase-mediated synthesis of optically active GABA analogues containing a stereogenic all-carbon quaternary carbon atom. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
156
|
Park SE, Nam EH, Jang HB, Oh JS, Some S, Lee YS, Song CE. Enantioselective Alcoholysis of meso-Glutaric Anhydrides Catalyzed by Cinchona-Based Sulfonamide Catalysts. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000289] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
157
|
|
158
|
Gajcy K, Pękala J, Frąckowiak-Wojtasek B, Librowski T, Lochyński S. Stereochemistry of terpene derivatives. Part 7: Novel rigidified amino acids from (+)-3-carene designed as chiral GABA analogues. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.06.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
159
|
Revilla-López G, Torras J, Curcó D, Casanovas J, Calaza MI, Zanuy D, Jiménez AI, Cativiela C, Nussinov R, Grodzinski P, Alemán C. NCAD, a database integrating the intrinsic conformational preferences of non-coded amino acids. J Phys Chem B 2010; 114:7413-22. [PMID: 20455555 PMCID: PMC2896893 DOI: 10.1021/jp102092m] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Peptides and proteins find an ever-increasing number of applications in the biomedical and materials engineering fields. The use of non-proteinogenic amino acids endowed with diverse physicochemical and structural features opens the possibility to design proteins and peptides with novel properties and functions. Moreover, non-proteinogenic residues are particularly useful to control the three-dimensional arrangement of peptidic chains, which is a crucial issue for most applications. However, information regarding such amino acids--also called non-coded, non-canonical, or non-standard--is usually scattered among publications specialized in quite diverse fields as well as in patents. Making all these data useful to the scientific community requires new tools and a framework for their assembly and coherent organization. We have successfully compiled, organized, and built a database (NCAD, Non-Coded Amino acids Database) containing information about the intrinsic conformational preferences of non-proteinogenic residues determined by quantum mechanical calculations, as well as bibliographic information about their synthesis, physical and spectroscopic characterization, conformational propensities established experimentally, and applications. The architecture of the database is presented in this work together with the first family of non-coded residues included, namely, alpha-tetrasubstituted alpha-amino acids. Furthermore, the NCAD usefulness is demonstrated through a test-case application example.
Collapse
Affiliation(s)
- Guillem Revilla-López
- Departament d’Enginyeria Química, E. T. S. d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
| | - Juan Torras
- Departament d’Enginyeria Química, EUETII, Universitat Politècnica de Catalunya, Pça Rei 15, Igualada 08700, Spain
| | - David Curcó
- Departament d’Enginyeria Química, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
| | - Jordi Casanovas
- Departament de Química, Escola Politècnica Superior, Universitat de Lleida, c/ Jaume II n°69, Lleida E-25001, Spain
| | - M. Isabel Calaza
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza – CSIC, 50009 Zaragoza, Spain
| | - David Zanuy
- Departament d’Enginyeria Química, E. T. S. d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
| | - Ana I. Jiménez
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza – CSIC, 50009 Zaragoza, Spain
| | - Carlos Cativiela
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza – CSIC, 50009 Zaragoza, Spain
| | - Ruth Nussinov
- Basic Science Program, SAIC-Frederick, Inc. Center for Cancer Research Nanobiology Program, NCI, Frederick, MD 21702, USA
- Department of Human Genetics Sackler, Medical School, Tel Aviv University, Tel Aviv 69978, Israel
| | - Piotr Grodzinski
- Alliance for Nanotechnology in Cancer, National Cancer Institute, Bethesda, MD 20892, USA
| | - Carlos Alemán
- Departament d’Enginyeria Química, E. T. S. d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
- Center for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Campus Sud, Edifici C’, C/Pasqual i Vila s/n, Barcelona E-08028, Spain
| |
Collapse
|
160
|
Synthesis of γ-aminobutyric acid analogs based on carbohydrate scaffolds. Carbohydr Res 2010; 345:1099-106. [DOI: 10.1016/j.carres.2010.03.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 03/18/2010] [Accepted: 03/25/2010] [Indexed: 11/23/2022]
|
161
|
Synthesis of conformationally restricted 1,2,3-triazole-substituted ethyl β- and γ-aminocyclopentanecarboxylate stereoisomers. Multifunctionalized alicyclic amino esters. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
162
|
|
163
|
|
164
|
|
165
|
Baschieri A, Bernardi L, Ricci A, Suresh S, Adamo M. Catalytic Asymmetric Conjugate Addition of Nitroalkanes to 4-Nitro-5-styrylisoxazoles. Angew Chem Int Ed Engl 2009; 48:9342-5. [DOI: 10.1002/anie.200905018] [Citation(s) in RCA: 126] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
166
|
Baschieri A, Bernardi L, Ricci A, Suresh S, Adamo M. Catalytic Asymmetric Conjugate Addition of Nitroalkanes to 4-Nitro-5-styrylisoxazoles. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200905018] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
167
|
Highly stereoselective aziridine ring-opening with phenylselenide anion and selective intramolecular aldol closure for the enantiopure synthesis of γ-aminocyclopentene derivatives. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.070] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
168
|
García JM, Maestro MA, Oiarbide M, Odriozola JM, Razkin J, Palomo C. Conjugate Addition of Nitroalkanes to an Acrylate Equivalent. Stereocontrol at C-α of the Nitro Group through Double Catalytic Activation. Org Lett 2009; 11:3826-9. [DOI: 10.1021/ol901351k] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jesús M. García
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía 31006 Pamplona, Spain, and Departamento de Química Fundamental, Facultad de Ciencias, Universidade da Coruña, Campus Zapateira s/n, 15071 A Coruña, Spain
| | - Miguel A. Maestro
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía 31006 Pamplona, Spain, and Departamento de Química Fundamental, Facultad de Ciencias, Universidade da Coruña, Campus Zapateira s/n, 15071 A Coruña, Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía 31006 Pamplona, Spain, and Departamento de Química Fundamental, Facultad de Ciencias, Universidade da Coruña, Campus Zapateira s/n, 15071 A Coruña, Spain
| | - José M. Odriozola
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía 31006 Pamplona, Spain, and Departamento de Química Fundamental, Facultad de Ciencias, Universidade da Coruña, Campus Zapateira s/n, 15071 A Coruña, Spain
| | - Jesús Razkin
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía 31006 Pamplona, Spain, and Departamento de Química Fundamental, Facultad de Ciencias, Universidade da Coruña, Campus Zapateira s/n, 15071 A Coruña, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía 31006 Pamplona, Spain, and Departamento de Química Fundamental, Facultad de Ciencias, Universidade da Coruña, Campus Zapateira s/n, 15071 A Coruña, Spain
| |
Collapse
|
169
|
Chavan AB, Maikap GC, Gurjar MK. An Efficient Process of Racemization of 3-(Carbamoylmethyl)-5-methylhexanoic acid: A Pregabalin Intermediate. Org Process Res Dev 2009. [DOI: 10.1021/op900064x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anil B. Chavan
- Emcure Pharmaceuticals Ltd, R & D Centre, Plot No.12/2, F-II Block, M.I.D.C., Pimpri, Pune - 411018, India
| | - Golak C. Maikap
- Emcure Pharmaceuticals Ltd, R & D Centre, Plot No.12/2, F-II Block, M.I.D.C., Pimpri, Pune - 411018, India
| | - Mukund K. Gurjar
- Emcure Pharmaceuticals Ltd, R & D Centre, Plot No.12/2, F-II Block, M.I.D.C., Pimpri, Pune - 411018, India
| |
Collapse
|
170
|
The efficient synthesis of (3R,4R,5R)-3-amino-4,5-dimethyl-octanoic acid, a chiral β-amino acid with potent affinity for the α2δ protein. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.111] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
171
|
|
172
|
Bassas O, Huuskonen J, Rissanen K, Koskinen AMP. A Simple Organocatalytic Enantioselective Synthesis of Pregabalin. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801220] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
173
|
Chatterjee S, Vasudev PG, Raghothama S, Shamala N, Balaram P. Solid state and solution conformations of a hybrid alphagammaalphaalphagammaalpha hexapeptide. Characterization of a backbone expanded analog of the alpha-polypeptide 3(10)-helix. Biopolymers 2009; 90:759-71. [PMID: 18767124 DOI: 10.1002/bip.21076] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The stereochemically constrained gamma amino acid residue gabapentin (1-(aminomethyl)cyclohexaneacetic acid, Gpn) has been incorporated into a host alpha-peptide sequence. The structure of a hybrid alphagammaalphaalphagammaalpha peptide, Boc-Leu-Gpn-Aib-Leu-Gpn-Aib-OMe in crystals reveals a continuous helical conformation stabilized by three intramolecular 4 --> 1 C(12) hydrogen bonds across the alphagamma/alphagamma segments and one C(10) hydrogen bond across the central alphaalpha segment. This conformation corresponds to an expanded analog of the canonical all-alpha polypeptide 3(10)-helix, with insertion of two additional backbone atoms at each gamma residue. Solvent dependence of NH chemical shifts in CDCl(3) solution are consistent with conformation in which the NH groups of Aib (3), Leu (4), Gpn (5), and Aib (6) are hydrogen bonded, a feature observed in the solid state. The nonsequential NOEs between Gpn (2) NH <--> Leu (4) NH and Gpn (2) NH <--> Gpn (5) NH support the presence of additional conformations in solution. Temperature-dependent line broadening of NH resonances confirms the occurrence of rapid exchange between multiple conformations at room temperature. Two conformational models which rationalize the observed nonsequential NOEs are presented, both of which contain three hydrogen bonds and are consistent with the known stereochemical preferences of the Gpn residue.
Collapse
Affiliation(s)
- Sunanda Chatterjee
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560 012, India
| | | | | | | | | |
Collapse
|
174
|
Friestad GK, Banerjee K. Synthesis of γ-Amino Esters via Mn-Mediated Radical Addition to Chiral γ-Hydrazonoesters. Org Lett 2009; 11:1095-8. [DOI: 10.1021/ol802932v] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Koushik Banerjee
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242
| |
Collapse
|
175
|
|
176
|
Enantioseparation of nonproteinogenic amino acids. Anal Bioanal Chem 2009; 393:1789-96. [DOI: 10.1007/s00216-008-2564-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 11/28/2008] [Accepted: 12/03/2008] [Indexed: 10/21/2022]
|
177
|
Aguilera J, Gutiérrez-Abad R, Mor À, Moglioni AG, Moltrasio GY, Ortuño RM. Stereoselective synthesis of cyclobutyl γ-amino acids leading to branched peptides with a cyclobutane core. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.12.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
178
|
Forró E, Fülöp F. Enzymatic Method for the Synthesis of Blockbuster Drug Intermediates - Synthesis of Five-Membered Cyclic γ-Amino Acid and γ-Lactam Enantiomers. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800723] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
179
|
Enders D, Wang C, Bats J. Organokatalytische asymmetrische Dominoreaktionen: eine Kaskade aus Michael-Addition und Aldehyd-α-Alkylierung. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802532] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
180
|
Enders D, Wang C, Bats J. Organocatalytic Asymmetric Domino Reactions: A Cascade Consisting of a Michael Addition and an Aldehyde α‐Alkylation. Angew Chem Int Ed Engl 2008; 47:7539-42. [DOI: 10.1002/anie.200802532] [Citation(s) in RCA: 209] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241–809–2127 http://www.oc.rwth‐aachen.de
| | - Chuan Wang
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241–809–2127 http://www.oc.rwth‐aachen.de
| | - Jan W. Bats
- Institute of Organic Chemistry and Chemical Biology, University of Frankfurt, Marie‐Curie‐Strasse 11, 60439 Frankfurt am Main (Germany)
| |
Collapse
|
181
|
Prazeres VFV, Castedo L, González-Bello C. Stereoselective Synthesis of Novel Cyclic γ-Amino Acids and Triazole Derivatives. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800480] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
182
|
Deng J, Hu XP, Huang JD, Yu SB, Wang DY, Duan ZC, Zheng Z. Enantioselective Synthesis of β-Aryl-γ-amino Acid Derivatives via Cu-Catalyzed Asymmetric 1,4-Reductions of γ-Phthalimido-Substituted α,β-Unsaturated Carboxylic Acid Esters. J Org Chem 2008; 73:6022-4. [DOI: 10.1021/jo800794p] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Deng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Jia-Di Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Sai-Bo Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Dao-Yong Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Zheng-Chao Duan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Zhuo Zheng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| |
Collapse
|
183
|
Photiadou AD, Stathakis CI, Gallos JK. Convenient preparations of 2-alkyl-5-oxopyrrolidine-3-carboxylic acids. J Heterocycl Chem 2008. [DOI: 10.1002/jhet.5570450454] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
184
|
Comesse S, Sanselme M, Daïch A. New and expeditious tandem sequence aza-Michael/intramolecular nucleophilic substitution route to substituted gamma-lactams: synthesis of the tricyclic core of (+/-)-martinellines. J Org Chem 2008; 73:5566-9. [PMID: 18549283 DOI: 10.1021/jo702752w] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new and highly diastereoselective tandem reaction aza-Michael/intramolecular nucleophilic substitution is presented. This unprecedented tandem reaction between N-substituted alpha-bromoacetamides and Michael acceptors proceeds with good yields and excellent diastereoselectivity to provide the corresponding trisubstituted gamma-lactam systems. An application to the concise synthesis of the tricyclic core of (+/-)-martinelline alkaloids is also described.
Collapse
Affiliation(s)
- Sébastien Comesse
- URCOM, EA 3221, UFR des Sciences & Techniques, Université du Havre, 25 rue Philippe Lebon, BP 540, F-76058 Le Havre Cedex, France.
| | | | | |
Collapse
|
185
|
Felluga F, Pitacco G, Valentin E, Venneri CD. A facile chemoenzymatic approach to chiral non-racemic β-alkyl-γ-amino acids and 2-alkylsuccinic acids. A concise synthesis of (S)-(+)-Pregabalin. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.03.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
186
|
Chi Y, Guo L, Kopf NA, Gellman SH. Enantioselective organocatalytic Michael addition of aldehydes to nitroethylene: efficient access to gamma2-amino acids. J Am Chem Soc 2008; 130:5608-9. [PMID: 18386925 PMCID: PMC3429127 DOI: 10.1021/ja800345r] [Citation(s) in RCA: 138] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Enantioselective organocatalytic Michael addition of aldehydes to nitroethylene catalyzed by (S)-diphenylprolinol silyl ether provides beta-substituted-delta-nitroalcohols in nearly optically pure form (96-99% ee). The Michael adducts bear a single substituent adjacent to the carbonyl and can be efficiently converted to protected gamma2-amino acids, which are essential for the systematic conformational studies of gamma-peptide foldamers.
Collapse
Affiliation(s)
- Yonggui Chi
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - Li Guo
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - Nathan A. Kopf
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - Samuel H. Gellman
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| |
Collapse
|
187
|
Wiesner M, Revell JD, Tonazzi S, Wennemers H. Peptide Catalyzed Asymmetric Conjugate Addition Reactions of Aldehydes to Nitroethylene—A Convenient Entry into γ2-Amino Acids. J Am Chem Soc 2008; 130:5610-1. [DOI: 10.1021/ja801027s] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Markus Wiesner
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Jefferson D. Revell
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Sandro Tonazzi
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Helma Wennemers
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| |
Collapse
|
188
|
Rodríguez-Soria V, Quintero L, Sartillo-Piscil F. A novel stereoselective tin-free radical protocol for the enantioselective synthesis of pyrrolidinones and its application to the synthesis of biologically active GABA-derivatives. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.063] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
189
|
Aguilera J, Moglioni AG, Moltrasio GY, Ortuño RM. Stereodivergent synthesis of the first bis(cyclobutane) γ-dipeptides and mixed γ-oligomers. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.01.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
190
|
A general and efficient stereoselective synthesis of γ-azido-tetrahydrofuran carboxylic acids from glycals. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.12.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
191
|
|
192
|
Meise M, Haag R. A highly active water-soluble cross-coupling catalyst based on dendritic polyglycerol N-heterocyclic carbene palladium complexes. CHEMSUSCHEM 2008; 1:637-642. [PMID: 18702166 DOI: 10.1002/cssc.200800042] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A new water-soluble polyglycerol derivative functionalized with N-heterocyclic carbene palladium complexes was prepared and applied as catalyst for Suzuki cross-coupling reactions in water. The complex displays a metal loading of around 65 metal centers per dendrimeric molecule, which is estimated to contain 130 chelating groups and thus corresponds approximately to the formation of 2:1 NHC/metal complexes. Monomeric analogues were also synthesized to validate the reactivity of the dendritic catalyst. Both types of catalysts were tested with various aryl bromides and arylboronic acids. Turnover frequencies of up to 2586 h(-1) at 80 degrees C were observed with the dendritic catalyst along with turnover numbers of up to 59 000, which are among the highest turnover numbers reported for polymer-supported catalysts in neat water. The dendritic catalyst could be used (reused) in five consecutive reactions without loss in activity.
Collapse
Affiliation(s)
- Markus Meise
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, Berlin, Germany
| | | |
Collapse
|
193
|
Deng J, Duan ZC, Huang JD, Hu XP, Wang DY, Yu SB, Xu XF, Zheng Z. Rh-Catalyzed Asymmetric Hydrogenation of γ-Phthalimido-Substituted α,β-Unsaturated Carboxylic Acid Esters: An Efficient Enantioselective Synthesis of β-Aryl-γ-amino Acids. Org Lett 2007; 9:4825-8. [DOI: 10.1021/ol702193v] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Deng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Zheng-Chao Duan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Jia-Di Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Dao-Yong Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Sai-Bo Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Xue-Feng Xu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Zhuo Zheng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| |
Collapse
|
194
|
Hameršak Z, Stipetić I, Avdagić A. An efficient synthesis of (S)-3-aminomethyl-5-methylhexanoic acid (Pregabalin) via quinine-mediated desymmetrization of cyclic anhydride. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.06.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
195
|
Köhler F, Gais HJ, Raabe G. Asymmetric Synthesis of Highly Substituted γ-Amino Acids from Allyltitanium Sulfoximines. Org Lett 2007; 9:1231-4. [PMID: 17326643 DOI: 10.1021/ol063082q] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text]. Asymmetric syntheses of the highly substituted protected gamma-amino acids 10a, 10b, 18, and 21 have been developed starting from the allyltitanium sulfoximines V and VI, respectively, and furan-2-carbaldehyde.
Collapse
Affiliation(s)
- Franz Köhler
- Institut für Organische Chemie der Rheinisch-Westfälischen Technischen Hochschule Aachen, Landoltweg 1, D-52056 Aachen, Germany
| | | | | |
Collapse
|
196
|
|