1
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Kodama Y, Imai S, Fujimoto J, Sato K, Mase N, Narumi T. Stereoselective synthesis of highly functionalized ( Z)-chloroalkene dipeptide isosteres containing an α,α-disubstituted amino acid. Chem Commun (Camb) 2021; 57:6915-6918. [PMID: 34152343 DOI: 10.1039/d1cc02952e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described here is the first stereoselective synthesis of highly functionalized chloroalkene dipeptide isosteres containing an α,α-disubstituted amino acid (ααAA). This synthesis requires the construction of a quaternary carbon center, and this challenge was overcome by the Aza-Darzens condensation of ketimine with α,α-dichloroenolate, producing 2-chloroaziridines with quaternary carbon centers including spirocyclic motifs, which are valuable for the previously elusive synthesis of various ααAA-containing chloroalkene isosteres.
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Affiliation(s)
- Yuki Kodama
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan.
| | - Saki Imai
- Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan
| | - Junko Fujimoto
- Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering, Shizuoka University, Shizuoka, 432-8561, Japan
| | - Kohei Sato
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan. and Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan and Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering, Shizuoka University, Shizuoka, 432-8561, Japan
| | - Nobuyuki Mase
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan. and Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan and Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering, Shizuoka University, Shizuoka, 432-8561, Japan and Green Energy Research Division, Research Institute of Green Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan
| | - Tetsuo Narumi
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan. and Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan and Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering, Shizuoka University, Shizuoka, 432-8561, Japan and Green Chemistry Research Division, Research Institute of Green Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 432-8561, Japan
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2
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Kerner MJ, Kuttruff CA, Chevliakov M, Buono FG, Gao DA, Krawiec M, Busacca CA, Senanayake CH, Wipf P, Reeves JT. Carbamoyl Anion Addition to Azirines. Org Lett 2021; 23:4396-4399. [PMID: 33988373 DOI: 10.1021/acs.orglett.1c01334] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The addition of carbamoyl anions to azirines affords synthetically useful 2-aziridinyl amide building blocks. The reaction scope was explored with respect to both formamide and azirine, and the addition was found to be highly diastereoselective. A one-pot conversion of a ketoxime to an aziridinyl amide was demonstrated. The method was employed to incorporate an aziridine residue into a dipeptide segment.
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Affiliation(s)
- Michael J Kerner
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Christian A Kuttruff
- Medicinal Chemistry, Boehringer Ingelheim Pharma GmbH & Co KG, 88397 Biberach an der Riss, Germany
| | - Maxim Chevliakov
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Frederic G Buono
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Donghong A Gao
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Mariusz Krawiec
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Carl A Busacca
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Chris H Senanayake
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jonathan T Reeves
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
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3
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A facile and efficient carbocatalytic route to quaternary C-bearing N-tosylaziridines from Morita-Baylis-Hillman adduct in water. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Boville CE, Romney DK, Almhjell PJ, Sieben M, Arnold FH. Improved Synthesis of 4-Cyanotryptophan and Other Tryptophan Analogues in Aqueous Solvent Using Variants of TrpB from Thermotoga maritima. J Org Chem 2018; 83:7447-7452. [PMID: 29651849 DOI: 10.1021/acs.joc.8b00517] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The use of enzymes has become increasingly widespread in synthesis as chemists strive to reduce their reliance on organic solvents in favor of more environmentally benign aqueous media. With this in mind, we previously endeavored to engineer the tryptophan synthase β-subunit (TrpB) for production of noncanonical amino acids that had previously been synthesized through multistep routes involving water-sensitive reagents. This enzymatic platform proved effective for the synthesis of analogues of the amino acid tryptophan (Trp), which are frequently used in pharmaceutical synthesis as well as chemical biology. However, certain valuable compounds, such as the blue fluorescent amino acid 4-cyanotryptophan (4-CN-Trp), could only be made in low yield, even at elevated temperature (75 °C). Here, we describe the engineering of TrpB from Thermotoga maritima that improved synthesis of 4-CN-Trp from 24% to 78% yield. Remarkably, although the final enzyme maintains high thermostability ( T50 = 93 °C), its temperature profile is shifted such that high reactivity is observed at ∼37 °C (76% yield), creating the possibility for in vivo 4-CN-Trp production. The improvements are not specific to 4-CN-Trp; a boost in activity at lower temperature is also demonstrated for other Trp analogues.
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Affiliation(s)
- Christina E Boville
- Division of Chemistry and Chemical Engineering 210-41 , California Institute of Technology , 1200 East California Boulevard , Pasadena , California 91125 , United States
| | - David K Romney
- Division of Chemistry and Chemical Engineering 210-41 , California Institute of Technology , 1200 East California Boulevard , Pasadena , California 91125 , United States
| | - Patrick J Almhjell
- Division of Chemistry and Chemical Engineering 210-41 , California Institute of Technology , 1200 East California Boulevard , Pasadena , California 91125 , United States
| | - Michaela Sieben
- Division of Chemistry and Chemical Engineering 210-41 , California Institute of Technology , 1200 East California Boulevard , Pasadena , California 91125 , United States
| | - Frances H Arnold
- Division of Chemistry and Chemical Engineering 210-41 , California Institute of Technology , 1200 East California Boulevard , Pasadena , California 91125 , United States
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5
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Tangara S, Kanazawa A, Py S. The Baldwin Rearrangement: Synthesis of 2-Acylaziridines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700920] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Salia Tangara
- Univ. Grenoble Alpes; DCM; CNRS; 38000 Grenoble France
| | | | - Sandrine Py
- Univ. Grenoble Alpes; DCM; CNRS; 38000 Grenoble France
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6
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Choi J, Yadav NN, Ha HJ. Preparation of a Stable Bicyclic Aziridinium Ion and Its Ring Expansion toward Piperidines and Azepanes. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jieun Choi
- Department of Chemistry; Hankuk University of Foreign Studies; Yongin 17035 Korea
| | - Nagendra Nath Yadav
- Department of Chemistry; North Eastern Regional Institute of Science and Technology, Nirjuli; Arunachal Pradesh 791109 India
| | - Hyun-Joon Ha
- Department of Chemistry; Hankuk University of Foreign Studies; Yongin 17035 Korea
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7
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Derivatives of 2-aziridinyl ketones and aziridinyl-2-carboxylates (microreview). Chem Heterocycl Compd (N Y) 2016. [DOI: 10.1007/s10593-016-1925-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Marsini MA, Reeves JT, Desrosiers JN, Herbage MA, Savoie J, Li Z, Fandrick KR, Sader CA, McKibben B, Gao DA, Cui J, Gonnella NC, Lee H, Wei X, Roschangar F, Lu BZ, Senanayake CH. Diastereoselective Synthesis of α-Quaternary Aziridine-2-carboxylates via Aza-Corey–Chaykovsky Aziridination of N-tert-Butanesulfinyl Ketimino Esters. Org Lett 2015; 17:5614-7. [DOI: 10.1021/acs.orglett.5b02838] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maurice A. Marsini
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jonathan T. Reeves
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jean-Nicolas Desrosiers
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Melissa A. Herbage
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jolaine Savoie
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Zhibin Li
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Keith R. Fandrick
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - C. Avery Sader
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Bryan McKibben
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Donghong A. Gao
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jianwen Cui
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nina C. Gonnella
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Heewon Lee
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Xudong Wei
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Frank Roschangar
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Bruce Z. Lu
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Chris H. Senanayake
- Departments of Chemical Development,
Medicinal Chemistry, and Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
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9
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Cytlak T, Saweliew M, Kubicki M, Koroniak H. Synthesis of trifluoromethyl γ-aminophosphonates by nucleophilic aziridine ring opening. Org Biomol Chem 2015; 13:10050-9. [PMID: 26299334 DOI: 10.1039/c5ob01411e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphonated derivatives of trifluoromethyl aziridine were obtained with good yield from aziridine-2-carbaldehyde by two distinct methods, which resulted in different diastereoselectivities. Using thiols as nucleophiles ring opening reactions of trifluoromethylated derivatives of aziridine-2-phosphonates proceeded regio- and diastereoselectively, giving rise to γ-amino-γ-trifluoromethyl phosphonates.
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Affiliation(s)
- T Cytlak
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 60614 Poznan, Poland.
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10
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Rasheed OK, Bailey PD, Lawrence A, Quayle P, Raftery J. A Modular Synthesis of Multidentate S-, N- and O-Containing Meta- and Paracyclophanes. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501058] [Citation(s) in RCA: 8] [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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11
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Affiliation(s)
- Jae-Hoon Jung
- Center for Directions in Organic Synthesis, Department of Chemistry; Hankuk University of Foreign Studies; Kyunggi-Do 449-719 Korea
| | - Hyun-Joon Ha
- Center for Directions in Organic Synthesis, Department of Chemistry; Hankuk University of Foreign Studies; Kyunggi-Do 449-719 Korea
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12
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Lee J, Lee JE, Ha HJ, Son SI, Lee WK. N-Methylative aziridine ring opening: asymmetric synthesis of hygroline, pseudohygroline, and hygrine. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.133] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Ring Expansions of Activated Aziridines and Azetidines. TOPICS IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1007/7081_2015_159] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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Chavan SP, Khairnar LB, Pawar KP, Chavan PN, Kawale SA. Enantioselective syntheses of (R)-pipecolic acid, (2R,3R)-3-hydroxypipecolic acid, β-(+)-conhydrine and (−)-swainsonine using an aziridine derived common chiral synthon. RSC Adv 2015. [DOI: 10.1039/c5ra06429e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Concise total syntheses of (R)-pipecolic acid, (2R,3R)-3-hydroxypipecolic acid and formal syntheses of β-(+)-conhydrine, (−)-lentiginosine, (−)-swainsonine and -1,2-di-epi-swainsonine have been accomplished starting from a common chiral synthon.
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15
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Fukuzumi M, Nakanishi W, Ishikawa T, Kumamoto T. Synthesis ofortho-Phenylenebis(guanidine) Derivatives with Potential Chirality. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201400053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Zhao W, Lu Z, Wulff WD. β-amino esters from the reductive ring opening of aziridine-2-carboxylates. J Org Chem 2014; 79:10068-80. [PMID: 25329528 PMCID: PMC4227569 DOI: 10.1021/jo501694h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Indexed: 11/30/2022]
Abstract
A general study is undertaken to examine the scope of the reductive ring opening of aziridine-2-carboxylates with samarium diiodide. The competition between C-C and C-N bond cleavage is examined as a function of the nature of the N-substituent of the aziridine, the nature of the substituent in the 3-position of the aziridine, and whether the substituent in the 3-position is in a cis or trans relationship with the carboxylate in the 2-position. The desired C-N bond cleavage leads to β-amino esters that are the predominant products for most aziridines with an N-activating group. However, C-C cleavage products are observed with an aryl group in the 3-position; this can be particularly pronounced with cis-aziridines where a nearly equal mixture of the two is observed. Exclusive formation of the C-N cleavage product is observed for all aziridines with the strongly N-activating p-toluene sulfonate group. Similarly high selectivity is observed for the 2-trimethylsilylethyl sulfonate group (SES), which is easier to remove. The utility of these methods is illustrated in the synthesis of protected forms of (R)-β(3)-DOPA and L-DOPA from the same aziridine, the former by SmI2-mediated reductive opening at C-2 and the latter by palladium-mediated reductive opening at C-3.
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Affiliation(s)
- Wenjun Zhao
- Department of Chemistry, Michigan
State University, East Lansing, Michigan 48824, United States
| | - Zhenjie Lu
- Department of Chemistry, Michigan
State University, East Lansing, Michigan 48824, United States
| | - William D. Wulff
- Department of Chemistry, Michigan
State University, East Lansing, Michigan 48824, United States
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17
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Chavan SP, Khairnar LB, Chavan PN, Dumare NB, Kalbhor DB, Gonnade RG. Chiron approach to formal synthesis of both antipodes of cis 3-hydroxypipecolic acid. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Chavan SP, Khairnar LB, Chavan PN, Kalbhor DB. A short enantioselective total synthesis of (R)- and (S)-pipecolic acid. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Ha HJ, Jung JH, Lee WK. Application of Regio- and Stereoselective Functional Group Transformations of Chiral Aziridine-2-carboxylates. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402098] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Moens M, De Kimpe N, D'hooghe M. Selective synthesis of cis- and trans-2-(methyl/phenyl)-3-(trifluoromethyl)aziridines and their regio- and stereospecific ring opening. J Org Chem 2014; 79:5558-68. [PMID: 24845942 DOI: 10.1021/jo5007448] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A convenient and stereoselective approach toward cis- and trans-1-alkyl-2-(methyl/phenyl)-3-(trifluoromethyl)aziridines was developed starting from the corresponding α,α,α-trifluoroketones via imination, α-chlorination, and hydride-induced ring closure. The reactivity of these newly synthesized nonactivated α-CF3-aziridines was evaluated by applying N-protonation or N-alkylation to effect regio- and stereospecific aziridine ring opening by oxygen, halogen, sulfur, and nitrogen nucleophiles. Furthermore, nonactivated α-CF3-aziridines were easily transformed into their activated analogues by replacing the N-benzyl protecting group with a N-tosyl group, rendering these α-CF3-aziridines much more susceptible to nucleophilic ring opening.
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Affiliation(s)
- Matthias Moens
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University , Coupure Links 653, B-9000 Ghent, Belgium
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21
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Callebaut G, Meiresonne T, De Kimpe N, Mangelinckx S. Synthesis and Reactivity of 2-(Carboxymethyl)aziridine Derivatives. Chem Rev 2014; 114:7954-8015. [DOI: 10.1021/cr400582d] [Citation(s) in RCA: 142] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Gert Callebaut
- Department of Sustainable
Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Tamara Meiresonne
- Department of Sustainable
Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Norbert De Kimpe
- Department of Sustainable
Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Sven Mangelinckx
- Department of Sustainable
Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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22
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Reddy AR, Zhou CY, Che CM. Ruthenium Porphyrin Catalyzed Three-Component Reaction of Diazo Compounds, Nitrosoarenes, and Alkynes: An Efficient Approach to Multifunctionalized Aziridines. Org Lett 2014; 16:1048-51. [DOI: 10.1021/ol4035098] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Annapureddy Rajasekar Reddy
- HKU
Shenzhen Institute of Research and Innovation, Shenzhen, China
- State
Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Cong-Ying Zhou
- HKU
Shenzhen Institute of Research and Innovation, Shenzhen, China
- State
Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chi-Ming Che
- HKU
Shenzhen Institute of Research and Innovation, Shenzhen, China
- State
Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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23
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Mlostoń G, Obijalska E, Ziębacz P, Matyszewski K, Urbaniak K, Linden A, Heimgartner H. Nucleophilic trifluoromethylation of aziridinyl ketones: A convenient access to fluorinated aziridinyl alcohols. J Fluor Chem 2013. [DOI: 10.1016/j.jfluchem.2013.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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de Loera D, Liu F, Houk KN, Garcia-Garibay MA. Aziridine Nitrogen Inversion by Dynamic NMR: Activation Parameters in a Fused Bicyclic Structure. J Org Chem 2013; 78:11623-6. [DOI: 10.1021/jo4022315] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Denisse de Loera
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Fang Liu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - K. N. Houk
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Miguel A. Garcia-Garibay
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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25
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Kattamuri PV, Xiong Y, Pan Y, Li G. N,N-DIIsopropyl-N-phosphonyl imines lead to efficient asymmetric synthesis of aziridine-2-carboxylic esters. Org Biomol Chem 2013; 11:3400-8. [PMID: 23563304 PMCID: PMC3653188 DOI: 10.1039/c3ob40251g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly diastereoselective asymmetric synthesis of chiral aziridine-2-carboxylic esters is reported for 20 examples with good yields (51-87%) and excellent diastereoselectivities (>99:1 dr for most cases). The modified N-phosphonyl imines have proven to be superior to previous imine auxiliaries for the aza Darzens reaction by using a secondary isopropyl group to replace the primary benzyl group for N,N-diamino protection. In the meanwhile, a special operation by slowly adding the pre-cooled imine solution at -78 °C into the preformed β-bromo lithium enolate mixture at this temperature in the presence of 4 Å molecular sieves was found to be crucial in terms of yields and diastereoselectivity. The present method can provide an easy and general access to β-hydroxy α-amino acids and other important amino building blocks.
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Affiliation(s)
- Padmanabha V. Kattamuri
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Yiwen Xiong
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Yi Pan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Guigen Li
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210093, P. R. China
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Three-Membered Ring Systems. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/b978-0-08-099406-2.00002-9] [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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