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Yuki Y, Touge T, Nara H, Matsumura K, Fujiwhara M, Kayaki Y, Ikariya T. Selective Asymmetric Transfer Hydrogenation of α-Substituted Acetophenones with Bifunctional Oxo-Tethered Ruthenium(II) Catalysts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701227] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yamato Yuki
- Corporate Research & Development Division; Takasago International Corporation; 1-4-11 Nishi-Yawata Hiratsuka, Kanagawa 254-0043 Japan
| | - Taichiro Touge
- Corporate Research & Development Division; Takasago International Corporation; 1-4-11 Nishi-Yawata Hiratsuka, Kanagawa 254-0043 Japan
| | - Hideki Nara
- Corporate Research & Development Division; Takasago International Corporation; 1-4-11 Nishi-Yawata Hiratsuka, Kanagawa 254-0043 Japan
| | - Kazuhiko Matsumura
- Corporate Research & Development Division; Takasago International Corporation; 1-4-11 Nishi-Yawata Hiratsuka, Kanagawa 254-0043 Japan
| | - Mitsuhiko Fujiwhara
- Corporate Research & Development Division; Takasago International Corporation; 1-4-11 Nishi-Yawata Hiratsuka, Kanagawa 254-0043 Japan
| | - Yoshihito Kayaki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology; Tokyo Institute of Technology; 2-12-1-E4-1 O-okayama Meguro-ku, Tokyo 152-8552 Japan
| | - Takao Ikariya
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology; Tokyo Institute of Technology; 2-12-1-E4-1 O-okayama Meguro-ku, Tokyo 152-8552 Japan
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2
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Moynihan HA, Horgan DE. Impurity Occurrence and Removal in Crystalline Products from Process Reactions. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.6b00403] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Humphrey A. Moynihan
- Department of Chemistry/Analytical
and Biological Chemistry Research Facility/Synthesis and Solid-State
Pharmaceutical Centre, University College Cork, Cork, Ireland
| | - Danielle E. Horgan
- Department of Chemistry/Analytical
and Biological Chemistry Research Facility/Synthesis and Solid-State
Pharmaceutical Centre, University College Cork, Cork, Ireland
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3
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A general method for the direct transformation of common tertiary amides into ketones and amines by addition of Grignard reagents. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.074] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Camerino MA, Chalmers DK, Thompson PE. (+)-Fluorenylethylchloroformate (FLEC) – improved synthesis for application in chiral analysis and peptidomimetic synthesis. Org Biomol Chem 2013; 11:2571-3. [DOI: 10.1039/c3ob40218e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Magano J, Dunetz JR. Large-Scale Carbonyl Reductions in the Pharmaceutical Industry. Org Process Res Dev 2012. [DOI: 10.1021/op2003826] [Citation(s) in RCA: 292] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Javier Magano
- Chemical Research and Development, Pharmaceutical Sciences, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Joshua R. Dunetz
- Chemical Research and Development, Pharmaceutical Sciences, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
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6
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A perspective on synthetic and solid-form enablement of inhalation candidates. Future Med Chem 2011; 3:1679-701. [DOI: 10.4155/fmc.11.125] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The administration of compounds by a dry-powder inhaler presents significant challenges to the development and discovery chemist, owing to the stringent requirements placed upon the physical characteristics of the active pharmaceutical ingredient and the high complexity of the molecules concerned. The current state of synthetic chemistry technology is such that commercial syntheses of these compounds are demanding but achievable. While synthetic chemistry will remain a major component of the development of inhaled therapies, the main challenge facing practitioners in this area is the early identification of a suitable solid form. Further advances in the prediction of solid-form properties would significantly enable this field and may allow triage of molecules to be carried out at the design stage of projects.
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7
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de Koning PD, Gladwell IR, Moses IB, Panesar MS, Pettman AJ, Thomson NM. Development of an Enabling Route to PF-00610355: A Novel Inhaled β2-Adrenoreceptor Agonist. Org Process Res Dev 2011. [DOI: 10.1021/op2001904] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pieter D. de Koning
- Research API, Pfizer Global Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
| | - Iain R. Gladwell
- Research API, Pfizer Global Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
| | - Ian B. Moses
- Research API, Pfizer Global Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
| | - Maninder S. Panesar
- Research API, Pfizer Global Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
| | - Alan J. Pettman
- Research API, Pfizer Global Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
| | - Nicholas M. Thomson
- Research API, Pfizer Global Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
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8
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Thiverny M, Demory E, Baptiste B, Philouze C, Chavant PY, Blandin V. Inexpensive, multigram-scale preparation of an enantiopure cyclic nitrone via resolution at the hydroxylamine stage. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Huang K, Ortiz-Marciales M, Correa W, Pomales E, López XY. Spiroborate ester-mediated asymmetric synthesis of beta-hydroxy ethers and its conversion to highly enantiopure beta-amino ethers. J Org Chem 2009; 74:4195-202. [PMID: 19413288 PMCID: PMC2767257 DOI: 10.1021/jo900666r] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Borane-mediated reduction of aryl and alkyl ketones with alpha-aryl- and alpha-pyridyloxy groups affords beta-hydroxy ethers in high enantiomeric purity (up to 99% ee) and in good yield, using as catalyst 10 mol % of spiroborate ester 1 derived from (S)-diphenylprolinol. Representative beta-hydroxy ethers are successfully converted to beta-amino ethers, with minor epimerization, by phthalimide substitution under Mitsunobu's conditions followed by hydrazinolysis to obtain primary amino ethers or by imide reduction with borane to afford beta-2,3-dihydro-1H-isoindol ethers. Nonracemic Mexiletine and nAChR analogues with potential biological activity are also synthesized in excellent yield by mesylation of key beta-hydroxy pyridylethers and substitution with five-, six-, and seven-membered ring heterocyclic amines.
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Affiliation(s)
- Kun Huang
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico
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10
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Catalytic enantioselective borane reduction of arylketones with pinene-derived amino alcohols. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.12.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Farina V, Reeves JT, Senanayake CH, Song JJ. Asymmetric synthesis of active pharmaceutical ingredients. Chem Rev 2007; 106:2734-93. [PMID: 16836298 DOI: 10.1021/cr040700c] [Citation(s) in RCA: 384] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vittorio Farina
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, USA
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12
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Vicennati P, Cozzi PG. Facile Access to Optically Active Ferrocenyl Derivatives with Direct Substitution of the Hydroxy Group Catalyzed by Indium Tribromide. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700146] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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13
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Kloetzing RJ, Krasovskiy A, Knochel P. The Mg-Oppenauer Oxidation as a Mild Method for the Synthesis of Aryl and Metallocenyl Ketones. Chemistry 2006; 13:215-27. [PMID: 17024705 DOI: 10.1002/chem.200600738] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Magnesium alkoxides undergo a hydride-transfer oxidation with benzaldehyde as the oxidant. This magnesium variant of the Oppenauer oxidation was used for the synthesis of polyfunctional biaryl ketones. LiCl was found to promote this reaction by enhancing the solubility of magnesium alkoxides. This mild oxidation method was especially useful for preparing ketones bearing a metallocenyl unit as well as various new ferrocenyl ketones and tricarbonylchromium complexes. This last class of ketones was reduced with the CBS catalyst (CBS=Corey-Bakshi-Shibata, diphenyl oxazaborolidine) to chiral benzhydrol complexes with high enantioselectivity enabling an asymmetric synthesis of electron-rich or -poor benzhydryl alcohols (up to 94 % ee).
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Affiliation(s)
- Ralf J Kloetzing
- Universität Zürich, Organisch-chemisches Institut, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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14
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Bandini M, Bottoni A, Cozzi PG, Miscione GP, Monari M, Pierciaccante R, Umani-Ronchi A. ChiralC2-Boron-Bis(oxazolines) in Asymmetric Catalysis – A Theoretical Study of the Catalyzed Enantioselective Reduction of Ketones Promoted by Catecholborane. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600133] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Affiliation(s)
- William J. Atkins
- BASF Corporation, 1424 Mars-Evans City Road, Evans City, Pennsylvania 16033, U.S.A
| | | | - Karl Matos
- BASF Corporation, 1424 Mars-Evans City Road, Evans City, Pennsylvania 16033, U.S.A
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16
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Cho BT. Recent advances in the synthetic applications of the oxazaborolidine-mediated asymmetric reduction. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.05.036] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Burkhardt ER, Matos K. Boron Reagents in Process Chemistry: Excellent Tools for Selective Reductions. Chem Rev 2006; 106:2617-50. [PMID: 16836295 DOI: 10.1021/cr0406918] [Citation(s) in RCA: 166] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Wang F, Liu H, Cun L, Zhu J, Deng J, Jiang Y. Asymmetric Transfer Hydrogenation of Ketones Catalyzed by Hydrophobic Metal−Amido Complexes in Aqueous Micelles and Vesicles. J Org Chem 2005; 70:9424-9. [PMID: 16268617 DOI: 10.1021/jo0514826] [Citation(s) in RCA: 143] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[Reaction: see text]. Asymmetric transfer hydrogenation of ketones, especially alpha-bromomethyl aromatic ketones, catalyzed by unmodified, hydrophobic transition metal-amido complexes (TsDPEN-M), was performed successfully with significant enhancement of activity, chemoselectivity, and enantioselectivity (up to 99% ee) in aqueous media containing micelles and vesicles. The hydrophobic catalyst, embedded in micelles constructed from the surfactant cetyltrimethylammonium bromide (CTAB), could be separated from the organic phase along with the products and was recycled for at least six times.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Asymmetric Synthesis & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
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19
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Gilmore NJ, Jones S, Muldowney MP. Synthetic Applicability and in Situ Recycling of a B-Methoxy Oxazaborolidine Catalyst Derived from cis-1-Amino-indan-2-ol. Org Lett 2004; 6:2805-8. [PMID: 15281774 DOI: 10.1021/ol048916o] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A procedure is described that greatly simplifies the use of an oxazaborolidine catalyst derived from (1R,2S) cis-1-amino-indan-2-ol. This B-OMe catalyst has been employed in the asymmetric reduction of a number of structurally diverse prochiral ketones, in particular the reduction of alpha-amino acetophenone and its derivatives. A method for reducing the effective catalyst loading by "in situ recycling" is also presented. [structure: see text]
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Affiliation(s)
- Nathan J Gilmore
- Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, Brook Hill, Sheffield S3 7HF, UK
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20
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Hoogenraad M, Klaus GM, Elders N, Hooijschuur SM, McKay B, Smith AA, Damen EW. Oxazaborolidine mediated asymmetric ketone reduction: prediction of enantiomeric excess based on catalyst structure. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.tetasy.2003.12.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Ma Y, Liu H, Chen L, Cui X, Zhu J, Deng J. Asymmetric transfer hydrogenation of prochiral ketones in aqueous media with new water-soluble chiral vicinal diamine as ligand. Org Lett 2003; 5:2103-6. [PMID: 12790539 DOI: 10.1021/ol0345125] [Citation(s) in RCA: 179] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] An easily accessible water-soluble chiral o-sulfonated 1,2-diphenylethlenediamine 2 and its mono-N-tosylated derivative 3 were synthesized for the first time. The ruthenium-complex-catalyzed reduction of prochiral ketones in aqueous media has been examined by using 3 as ligand and sodium formate as the source of hydrogen. The asymmetric transfer hydrogenation of omega-bromo acetophenones was achieved, in which only formate displacement occurred when formic acid/triethylamine azeotrope was used as the hydrogen donor.
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Affiliation(s)
- Yaping Ma
- Union Laboratory of Asymmetric Synthesis, Chengdu Institute of Organic Chemistry, the Chinese Academy of Sciences, Chengdu 610041, China
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22
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Armstrong A. 2 Synthetic methods : Part (ii) Oxidation and reduction methods. ACTA ACUST UNITED AC 2003. [DOI: 10.1039/b212010k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Tanoury GJ, Hett R, Kessler DW, Wald SA, Senanayake CH. Taking Advantage of Polymorphism To Effect an Impurity Removal: Development of a Thermodynamic Crystal Form of (R,R)-Formoterol Tartrate. Org Process Res Dev 2002. [DOI: 10.1021/op025531h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gerald J. Tanoury
- Chemical Research and Development, Sepracor Inc., 111 Locke Drive, Marlborough, Massachusetts 01752, U.S.A
| | - Robert Hett
- Chemical Research and Development, Sepracor Inc., 111 Locke Drive, Marlborough, Massachusetts 01752, U.S.A
| | - Donald W. Kessler
- Chemical Research and Development, Sepracor Inc., 111 Locke Drive, Marlborough, Massachusetts 01752, U.S.A
| | - Stephen A. Wald
- Chemical Research and Development, Sepracor Inc., 111 Locke Drive, Marlborough, Massachusetts 01752, U.S.A
| | - Chris H. Senanayake
- Chemical Research and Development, Sepracor Inc., 111 Locke Drive, Marlborough, Massachusetts 01752, U.S.A
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24
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The enantioselective reduction of 2′-fluoroacetophenone utilizing a simplified CBS-reduction procedure. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0957-4166(02)00373-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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