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Zhang WQ, Lin Z, Wu D, Wang Y, Hirao H, Gong LZ. Nickel-Catalyzed Enantioconvergent Allenylic Amination of Allenols Activated by Hydrogen-Bonding Interaction with Methanol. Angew Chem Int Ed Engl 2024; 63:e202410743. [PMID: 38963024 DOI: 10.1002/anie.202410743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 06/30/2024] [Accepted: 07/03/2024] [Indexed: 07/05/2024]
Abstract
The ubiquitous nature of amines in drug compounds, bioactive molecules and natural products has fueled intense interest in their synthesis. Herein, we introduce a nickel-catalyzed enantioconvergent allenylic amination of methanol-activated allenols. This protocol affords a diverse array of functionalized allenylic amines in high yields and with excellent enantioselectivities. The synthetic potential of this method is demonstrated by employing bioactive amines as nucleophiles and conducting gram-scale reactions. Furthermore, mechanistic investigations and DFT calculations elucidate the role of methanol as an activator in the nickel-catalyzed reaction, facilitating the oxidative addition of the C-O bond of allenols through hydrogen-bonding interactions. The remarkable outcomes arise from a rapid racemization of allenols enabled by the nickel catalyst and from highly enantioselective dynamic kinetic asymmetric transformation of η3-alkadienylnickel intermediates.
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Affiliation(s)
- Wen-Qian Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Zihan Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Danxing Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Yuhao Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Hajime Hirao
- Warshel Institute for Computational Biology, School of Medicine, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
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2
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de Dios SMR, Hass JL, Graham DL, Kumar N, Antony AE, Morton MD, Berkowitz DB. Information-Rich, Dual-Function 13C/ 2H-Isotopic Crosstalk NMR Assay for Human Serine Racemase (hSR) Provides a PLP-Enzyme "Partitioning Fingerprint" and Reveals Disparate Chemotypes for hSR Inhibition. J Am Chem Soc 2023; 145:3158-3174. [PMID: 36696670 PMCID: PMC11103274 DOI: 10.1021/jacs.2c12774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The first dual-function assay for human serine racemase (hSR), the only bona fide racemase in human biology, is reported. The hSR racemization function is essential for neuronal signaling, as the product, d-serine (d-Ser), is a potent N-methyl d-aspartate (NMDA) coagonist, important for learning and memory, with dysfunctional d-Ser-signaling being observed in some neuronal disorders. The second hSR function is β-elimination and gives pyruvate; this activity is elevated in colorectal cancer. This new NMR-based assay allows one to monitor both α-proton-exchange chemistry and β-elimination using only the native l-Ser substrate and hSR and is the most sensitive such assay. The assay judiciously employs segregated dual 13C-labeling and 13C/2H crosstalk, exploiting both the splitting and shielding effects of deuterium. The assay is deployed to screen a 1020-compound library and identifies an indolo-chroman-2,4-dione inhibitor family that displays allosteric site binding behavior (noncompetitive inhibition vs l-Ser substrate; competitive inhibition vs adenosine 5'-triphosphate (ATP)). This assay also reveals important mechanistic information for hSR; namely, that H/D exchange is ∼13-fold faster than racemization, implying that K56 protonates the carbanionic intermediate on the si-face much faster than does S84 on the re-face. Moreover, the 13C NMR peak pattern seen is suggestive of internal return, pointing to K56 as the likely enamine-protonating residue for β-elimination. The 13C/2H-isotopic crosstalk assay has also been applied to the enzyme tryptophan synthase and reveals a dramatically different partition ratio in this active site (β-replacement: si-face protonation ∼6:1 vs β-elimination: si-face protonation ∼1:3.6 for hSR), highlighting the value of this approach for fingerprinting the pyridoxal phosphate (PLP) enzyme mechanism.
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Affiliation(s)
| | | | | | - Nivesh Kumar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 USA
| | - Aina E. Antony
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 USA
| | - Martha D. Morton
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 USA
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3
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Ramos De Dios SM, Tiwari VK, McCune CD, Dhokale RA, Berkowitz DB. Biomacromolecule-Assisted Screening for Reaction Discovery and Catalyst Optimization. Chem Rev 2022; 122:13800-13880. [PMID: 35904776 DOI: 10.1021/acs.chemrev.2c00213] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reaction discovery and catalyst screening lie at the heart of synthetic organic chemistry. While there are efforts at de novo catalyst design using computation/artificial intelligence, at its core, synthetic chemistry is an experimental science. This review overviews biomacromolecule-assisted screening methods and the follow-on elaboration of chemistry so discovered. All three types of biomacromolecules discussed─enzymes, antibodies, and nucleic acids─have been used as "sensors" to provide a readout on product chirality exploiting their native chirality. Enzymatic sensing methods yield both UV-spectrophotometric and visible, colorimetric readouts. Antibody sensors provide direct fluorescent readout upon analyte binding in some cases or provide for cat-ELISA (Enzyme-Linked ImmunoSorbent Assay)-type readouts. DNA biomacromolecule-assisted screening allows for templation to facilitate reaction discovery, driving bimolecular reactions into a pseudo-unimolecular format. In addition, the ability to use DNA-encoded libraries permits the barcoding of reactants. All three types of biomacromolecule-based screens afford high sensitivity and selectivity. Among the chemical transformations discovered by enzymatic screening methods are the first Ni(0)-mediated asymmetric allylic amination and a new thiocyanopalladation/carbocyclization transformation in which both C-SCN and C-C bonds are fashioned sequentially. Cat-ELISA screening has identified new classes of sydnone-alkyne cycloadditions, and DNA-encoded screening has been exploited to uncover interesting oxidative Pd-mediated amido-alkyne/alkene coupling reactions.
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Affiliation(s)
| | - Virendra K Tiwari
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Christopher D McCune
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Ranjeet A Dhokale
- Higuchi Biosciences Center, University of Kansas, Lawrence, Kansas 66047, United States
| | - David B Berkowitz
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
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4
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Ghorai D, Cristòfol À, Kleij AW. Nickel‐Catalyzed Allylic Substitution Reactions: An Evolving Alternative. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Debasish Ghorai
- Institute of Chemical Research of Catalonia (ICIQ) the Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007– Tarragona Spain
| | - Àlex Cristòfol
- Institute of Chemical Research of Catalonia (ICIQ) the Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007– Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ) the Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007– Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluis Companys 23 08010– Barcelona Spain
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6
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Frontier AJ, Sinclair PP. Merging Strategy, Improvisation, and Conversation to Solve Problems in Target Synthesis. Acc Chem Res 2021; 54:1817-1829. [PMID: 33705115 DOI: 10.1021/acs.accounts.0c00804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Total synthesis has long been depicted as the quest to conquer the structures created by nature, requiring an unflinching, single-minded devotion to the task. The goal is achieved by chemists with grit, strength of will, and a competitive spirit. While there is some truth to this viewpoint, it does not fully capture the rich experiences gained in this research realm. In our lab, strategic planning, improvisation, and conversation have worked in concert to enable progress. This Account summarizes our efforts to synthesize four different bioactive targets: merrilactone A, rocaglamide, phomactin A, and tetrapetalone A. Certain missteps were integral to success in these synthetic projects. As such, we include the hiccups, and their roles in the evolution of the strategies, along with the results that aligned with our expectations.Two of these projects (merrilactone A and rocaglamide) culminated in the total synthesis of the targets. The challenges presented by merrilactone A spawned a new design strategy for pentannulation using Nazarov cyclization chemistry. This work demonstrated that Lewis acid catalysis is often a viable electrocyclization strategy in activated, polarized pentadienyl cation intermediates. We sought to apply the same logic to the rocaglamide target, but precursors we prepared did not behave according to plan. This situation pushed us to adapt our approach to match the innate reactivity of the substrate, resulting in an on-the-spot improvisation that was not only integral to the success of the project but also expanded our understanding of pentadienyl cation chemistry. In the other two projects (phomactin A and tetrapetalone A), we did not complete a total synthesis but did build the polycyclic core of the target. Even though the hetero [4 + 2] cycloaddition plan for assembling the macrocyclic oxadecalin ring system of phomactin A failed, the original experimental design still enabled us to solve the problem. Through a wholly unanticipated series of events, our focus on the oxadecalin ring system primed us for the discovery of a sequential iodoaldol/oxa-Michael sequence, using the original [4 + 2] building blocks. Then, the bridging ring present in phomactin A demanded we implement this sequence in a transannular fashion. Finally, our successful synthesis of the tetrapetalone core was enabled by consultations with others in the community. Each bond formation seemed to require different expertise, and in three separate instances (C-N cross-coupling, diastereoselective ring-closing metathesis, and oxidative dearomatization) synthetic challenges were overcome through conversation and collaboration.In our experience, the amount of creative power we summon during a target synthesis project correlates directly with the magnitude of the structural challenges we face. When reactivity surprises us, we analyze the problem anew, consult with colleagues, and improvise with the tools at hand. The inevitable misbehavior of a complex system is a strong motivating force, and one that has helped to shape our research program for nearly two decades.
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Affiliation(s)
- Alison J. Frontier
- Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester New York 14611, United States
| | - Paul P. Sinclair
- Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester New York 14611, United States
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7
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Liu Y, Yi Z, Yang X, Wang H, Yin C, Wang M, Dong XQ, Zhang X. Efficient Access to Chiral 2-Oxazolidinones via Ni-Catalyzed Asymmetric Hydrogenation: Scope Study, Mechanistic Explanation, and Origin of Enantioselectivity. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02569] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yuanhua Liu
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Zhiyuan Yi
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xuanliang Yang
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Heng Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China
| | - Congcong Yin
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Xiu-Qin Dong
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China
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8
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Clevenger AL, Stolley RM, Aderibigbe J, Louie J. Trends in the Usage of Bidentate Phosphines as Ligands in Nickel Catalysis. Chem Rev 2020; 120:6124-6196. [DOI: 10.1021/acs.chemrev.9b00682] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Andrew L. Clevenger
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
| | - Ryan M. Stolley
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
| | - Justis Aderibigbe
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
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9
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Zhang HJ, Gu Q, You SL. Ni-Catalyzed Intermolecular Allylic Dearomatization Reaction of Tryptophols and Tryptamines. Org Lett 2019; 21:9420-9424. [DOI: 10.1021/acs.orglett.9b03633] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Hui-Jun Zhang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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10
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Swyka RA, Berkowitz DB. The In Situ Enzymatic Screening (ISES) Approach to Reaction Discovery and Catalyst Identification. CURRENT PROTOCOLS IN CHEMICAL BIOLOGY 2017; 9:285-305. [PMID: 29241292 PMCID: PMC5734113 DOI: 10.1002/cpch.30] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The importance of discovering new chemical transformations and/or optimizing catalytic combinations has led to a flurry of activity in reaction screening. The in situ enzymatic screening (ISES) approach described here utilizes biological tools (enzymes/cofactors) to advance chemistry. The protocol interfaces an organic reaction layer with an adjacent aqueous layer containing reporting enzymes that act upon the organic reaction product, giving rise to a spectroscopic signal. ISES allows the experimentalist to rapidly glean information on the relative rates of a set of parallel organic/organometallic reactions under investigation, without the need to quench the reactions or draw aliquots. In certain cases, the real-time enzymatic readout also provides information on sense and magnitude of enantioselectivity and substrate specificity. This article contains protocols for single-well (relative rate) and double-well (relative rate/enantiomeric excess) ISES, in addition to a colorimetric ISES protocol and a miniaturized double-well procedure. © 2017 by John Wiley & Sons, Inc.
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Affiliation(s)
- Robert A Swyka
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska
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11
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Malik G, Swyka RA, Tiwari VK, Fei X, Applegate GA, Berkowitz DB. A thiocyanopalladation/carbocyclization transformation identified through enzymatic screening: stereocontrolled tandem C-SCN and C-C bond formation. Chem Sci 2017; 8:8050-8060. [PMID: 29568453 PMCID: PMC5855125 DOI: 10.1039/c7sc04083k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 09/29/2017] [Indexed: 12/31/2022] Open
Abstract
Herein we describe a formal thiocyanopalladation/carbocyclization transformation and its parametrization and optimization using a new elevated temperature plate-based version of our visual colorimetric enzymatic screening method for reaction discovery. The carbocyclization step leads to C-SCN bond formation in tandem with C-C bond construction and is highly stereoselective, showing nearly absolute 1,2-anti-stereoinduction (5 examples) for substrates bearing allylic substitution, and nearly absolute 1,3-syn-stereoinduction (16 examples) for substrates bearing propargylic substitution. Based upon these high levels of stereoinduction, the dependence of the 1,2-stereoinduction upon cyclization substrate geometry, and the generally high preference for the transoid vinyl thiocyanate alkene geometry, a mechanistic model is proposed, involving (i) Pd(ii)-enyne coordination, (ii) thiocyanopalladation, (iii) migratory insertion and (iv) β-elimination. Examples of transition metal-mediated C-SCN bond formation that proceed smoothly on unactivated substrates and allow for preservation of the SCN moiety are lacking. Yet, the thiocyanate functionality is of great value for biophysical chemistry (vibrational Stark effect) and medicinal chemistry (S,N-heterocycle construction). The title transformation accommodates C-, O-, N- and S-bridged substrates (6 examples), thereby providing the corresponding carbocyclic or heterocyclic scaffolds. The reaction is also shown to be compatible with a significant range of substituents, varying in steric and electronic demand, including a wide range of substituted aromatics, fused bicyclic and heterocyclic systems, and even biaryl systems. Combination of this new transformation with asymmetric allylation and Grubbs ring-closing metathesis provides for a streamlined enantio- and diastereoselective entry into the oxabicyclo[3.2.1]octyl core of the natural products massarilactone and annuionone A, as also evidenced by low temperature X-ray crystal structure determination. Utilizing this bicyclic scaffold, we demonstrate the versatility of the thiocyanate moiety for structural diversification post-cyclization. Thus, the bridging vinyl thiocyanate moiety is smoothly elaborated into a range of derivative functionalities utilizing transformations that cleave the S-CN bond, add the elements of RS-CN across a π-system and exploit the SCN moiety as a cycloaddition partner (7 diverse examples). Among the new functionalities thereby generated are thiotetrazole and sulfonyl tetrazole heterocycles that serve as carboxylate and phosphate surrogates, respectively, highlighting the potential of this approach for future applications in medicinal chemistry or chemical biology.
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Affiliation(s)
- G Malik
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - R A Swyka
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - V K Tiwari
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - X Fei
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - G A Applegate
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - D B Berkowitz
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
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12
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McCune CD, Beio ML, Sturdivant JM, de la Salud-Bea R, Darnell BM, Berkowitz DB. Synthesis and Deployment of an Elusive Fluorovinyl Cation Equivalent: Access to Quaternary α-(1'-Fluoro)vinyl Amino Acids as Potential PLP Enzyme Inactivators. J Am Chem Soc 2017; 139:14077-14089. [PMID: 28906111 PMCID: PMC6052324 DOI: 10.1021/jacs.7b04690] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Developing specific chemical functionalities to deploy in biological environments for targeted enzyme inactivation lies at the heart of mechanism-based inhibitor development but also is central to other protein-tagging methods in modern chemical biology including activity-based protein profiling and proteolysis-targeting chimeras. We describe here a previously unknown class of potential PLP enzyme inactivators; namely, a family of quaternary, α-(1'-fluoro)vinyl amino acids, bearing the side chains of the cognate amino acids. These are obtained by the capture of suitably protected amino acid enolates with β,β-difluorovinyl phenyl sulfone, a new (1'-fluoro)vinyl cation equivalent, and an electrophile that previously eluded synthesis, capture and characterization. A significant variety of biologically relevant AA side chains are tolerated including those for alanine, valine, leucine, methionine, lysine, phenylalanine, tyrosine, and tryptophan. Following addition/elimination, the resulting transoid α-(1'-fluoro)-β-(phenylsulfonyl)vinyl AA-esters undergo smooth sulfone-stannane interchange to stereoselectively give the corresponding transoid α-(1'-fluoro)-β-(tributylstannyl)vinyl AA-esters. Protodestannylation and global deprotection then yield these sterically encumbered and densely functionalized quaternary amino acids. The α-(1'-fluoro)vinyl trigger, a potential allene-generating functionality originally proposed by Abeles, is now available in a quaternary AA context for the first time. In an initial test of this new inhibitor class, α-(1'-fluoro)vinyllysine is seen to act as a time-dependent, irreversible inactivator of lysine decarboxylase from Hafnia alvei. The enantiomers of the inhibitor could be resolved, and each is seen to give time-dependent inactivation with this enzyme. Kitz-Wilson analysis reveals similar inactivation parameters for the two antipodes, L-α-(1'-fluoro)vinyllysine (Ki = 630 ± 20 μM; t1/2 = 2.8 min) and D-α-(1'-fluoro)vinyllysine (Ki = 470 ± 30 μM; t1/2 = 3.6 min). The stage is now set for exploration of the efficacy of this trigger in other PLP-enzyme active sites.
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Affiliation(s)
| | | | | | | | - Brendan M. Darnell
- Department of Chemistry, University of Nebraska, Lincoln, NE, 68588-0304
| | - David B. Berkowitz
- Department of Chemistry, University of Nebraska, Lincoln, NE, 68588-0304
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Bernhard Y, Thomson B, Ferey V, Sauthier M. Nickel-Catalyzed α-Allylation of Aldehydes and Tandem Aldol Condensation/Allylation Reaction with Allylic Alcohols. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703486] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yann Bernhard
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide; 59000 Lille France
| | - Brodie Thomson
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide; 59000 Lille France
| | - Vincent Ferey
- Chemistry and Biotechnology Development; SANOFI; 371 rue du Professeur Blayac 34184 Montpellier Cedex 04 France
| | - Mathieu Sauthier
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide; 59000 Lille France
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14
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Bernhard Y, Thomson B, Ferey V, Sauthier M. Nickel-Catalyzed α-Allylation of Aldehydes and Tandem Aldol Condensation/Allylation Reaction with Allylic Alcohols. Angew Chem Int Ed Engl 2017; 56:7460-7464. [DOI: 10.1002/anie.201703486] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Yann Bernhard
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide; 59000 Lille France
| | - Brodie Thomson
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide; 59000 Lille France
| | - Vincent Ferey
- Chemistry and Biotechnology Development; SANOFI; 371 rue du Professeur Blayac 34184 Montpellier Cedex 04 France
| | - Mathieu Sauthier
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide; 59000 Lille France
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15
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Blieck R, Azizi MS, Mifleur A, Roger M, Persyn C, Sauthier M, Bonin H. Nickel-Catalysed Bis-Allylation of Activated Nucleophiles with Allyl Alcohol. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501556] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Lamborelle N, Simon JF, Luxen A, Monbaliu JCM. Continuous-flow thermolysis for the preparation of vinylglycine derivatives. Org Biomol Chem 2015; 13:11602-6. [PMID: 26552900 DOI: 10.1039/c5ob02036k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Syn sulfoxide elimination was carried out under continuous-flow conditions in a mesofluidic thermolysis reactor. The design of the reactor enabled accurate control of reaction time and conditions, affording a convenient scale-independent procedure for the production of N,C-protected vinylglycine derivatives. Thermolysis at 270 °C under 1000 psi of pressure in superheated toluene enabled typical daily outputs ranging from 11 to 46 g per day with excellent selectivities and ee (>97%). The various competitive reaction pathways were studied and rationalized according to a computational study.
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Affiliation(s)
- Nicolas Lamborelle
- Center for Integrated Technology and Organic Synthesis, Department of Chemistry, University of Liège, 4000 Liège, Belgium.
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17
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Kita Y, Sakaguchi H, Hoshimoto Y, Nakauchi D, Nakahara Y, Carpentier JF, Ogoshi S, Mashima K. Pentacoordinated carboxylate π-allyl nickel complexes as key intermediates for the Ni-catalyzed direct amination of allylic alcohols. Chemistry 2015; 21:14571-8. [PMID: 26307334 DOI: 10.1002/chem.201502329] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Indexed: 01/01/2023]
Abstract
Direct amination of allylic alcohols with primary and secondary amines catalyzed by a system made of [Ni(1,5-cyclooctadiene)2 ] and 1,1'-bis(diphenylphosphino)ferrocene was effectively enhanced by adding nBu4 NOAc and molecular sieves, affording the corresponding allyl amines in high yield with high monoallylation selectivity for primary amines and high regioselectivity for monosubstituted allylic alcohols. Such remarkable additive effects of nBu4 NOAc were elucidated by isolating and characterizing some nickel complexes, manifesting the key role of a charge neutral pentacoordinated η(3) -allyl acetate complex in the present system, in contrast to usual cationic tetracoordinated complexes earlier reported in allylic substitution reactions.
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Affiliation(s)
- Yusuke Kita
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan)
| | - Hironobu Sakaguchi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
| | - Yoichi Hoshimoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
| | - Daisuke Nakauchi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan)
| | - Yasuhito Nakahara
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan)
| | - Jean-François Carpentier
- Institut des Sciences Chimiques de Rennes, Organometallics: Materials and Catalysis Dept. UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex (France).
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan).
| | - Kazushi Mashima
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan).
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18
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Karukurichi KR, Fei X, Swyka RA, Broussy S, Shen W, Dey S, Roy SK, Berkowitz DB. Mini-ISES identifies promising carbafructopyranose-based salens for asymmetric catalysis: Tuning ligand shape via the anomeric effect. SCIENCE ADVANCES 2015; 1:e1500066. [PMID: 26501130 PMCID: PMC4613784 DOI: 10.1126/sciadv.1500066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 05/11/2015] [Indexed: 05/24/2023]
Abstract
This study introduces new methods of screening for and tuning chiral space and in so doing identifies a promising set of chiral ligands for asymmetric synthesis. The carbafructopyranosyl-1,2-diamine(s) and salens constructed therefrom are particularly compelling. It is shown that by removing the native anomeric effect in this ligand family, one can tune chiral ligand shape and improve chiral bias. This concept is demonstrated by a combination of (i) x-ray crystallographic structure determination, (ii) assessment of catalytic performance, and (iii) consideration of the anomeric effect and its underlying dipolar basis. The title ligands were identified by a new mini version of the in situ enzymatic screening (ISES) procedure through which catalyst-ligand combinations are screened in parallel, and information on relative rate and enantioselectivity is obtained in real time, without the need to quench reactions or draw aliquots. Mini-ISES brings the technique into the nanomole regime (200 to 350 nmol catalyst/20 μml organic volume) commensurate with emerging trends in reaction development/process chemistry. The best-performing β-d-carbafructopyranosyl-1,2-diamine-derived salen ligand discovered here outperforms the best known organometallic and enzymatic catalysts for the hydrolytic kinetic resolution of 3-phenylpropylene oxide, one of several substrates examined for which the ligand is "matched." This ligand scaffold defines a new swath of chiral space, and anomeric effect tunability defines a new concept in shaping that chiral space. Both this ligand set and the anomeric shape-tuning concept are expected to find broad application, given the value of chiral 1,2-diamines and salens constructed from these in asymmetric catalysis.
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19
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Applegate GA, Berkowitz DB. Exploiting Enzymatic Dynamic Reductive Kinetic Resolution (DYRKR) in Stereocontrolled Synthesis. Adv Synth Catal 2015; 357:1619-1632. [PMID: 26622223 PMCID: PMC4662550 DOI: 10.1002/adsc.201500316] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Over the past two decades, the domains of both frontline synthetic organic chemistry and process chemistry and have seen an increase in crosstalk between asymmetric organic/organometallic approaches and enzymatic approaches to stereocontrolled synthesis. This review highlights the particularly auspicious role for dehydrogenase enzymes in this endeavor, with a focus on dynamic reductive kinetic resolutions (DYRKR) to "deracemize" building blocks, often setting two stereocenters in so doing. The scope and limitations of such dehydrogenase-mediated processes are overviewed, as are future possibilities for the evolution of enzymatic DYRKR.
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Affiliation(s)
| | - David B. Berkowitz
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588-0304 USA
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20
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Khan A, Xing J, Zhao J, Kan Y, Zhang W, Zhang YJ. Palladium-Catalyzed Enantioselective Decarboxylative Cycloaddition of Vinylethylene Carbonates with Isocyanates. Chemistry 2014; 21:120-4. [DOI: 10.1002/chem.201405830] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Indexed: 11/11/2022]
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21
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Wang XX, Quan ZJ, Wang XC. Lewis-Acid-Catalyzed Direct Allylation of Electron-Poor N-Heterocyclic Amides through an Amide-Aldehyde-Alkene Condensation. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402223] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Iodine-catalyzed three-component reaction of quinazoline-2,5-diones with aldehydes and styrenes for the synthesis of allylamine derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Contemporary screening approaches to reaction discovery and development. Nat Chem 2014; 6:859-71. [DOI: 10.1038/nchem.2062] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/13/2014] [Indexed: 12/24/2022]
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24
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Carlsen PN, Mann TJ, Hoveyda AH, Frontier AJ. Synthesis of (±)-tetrapetalone A-Me aglycon. Angew Chem Int Ed Engl 2014; 53:9334-8. [PMID: 25045072 PMCID: PMC4260470 DOI: 10.1002/anie.201404410] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Indexed: 11/07/2022]
Abstract
The first synthesis of (±)-tetrapetalone A-Me aglycon is described. Key bond-forming reactions include Nazarov cyclization, a ring-closing metathesis promoted with complete diastereoselectivity by a chiral molybdenum-based complex, tandem conjugate reduction/intramolecular aldol cyclization, and oxidative dearomatization.
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Affiliation(s)
- Peter N. Carlsen
- Department of Chemistry, University of Rochester, Rochester, NY, 14627 (USA)
| | - Tyler J. Mann
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Alison J. Frontier
- Department of Chemistry, University of Rochester, Rochester, NY, 14627 (USA)
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25
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Carlsen PN, Mann TJ, Hoveyda AH, Frontier AJ. Synthesis of (±)-Tetrapetalone A-Me Aglycon. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404410] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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Armanino N, Carreira EM. Ruthenium-Catalyzed Intramolecular Hydrocarbamoylation of Allylic Formamides: Convenient Access to Chiral Pyrrolidones. J Am Chem Soc 2013; 135:6814-7. [DOI: 10.1021/ja4026787] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nicolas Armanino
- Laboratorium für
Organische Chemie, ETH Zürich, CH-8093
Zürich, Switzerland
| | - Erick M. Carreira
- Laboratorium für
Organische Chemie, ETH Zürich, CH-8093
Zürich, Switzerland
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27
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Quan ZJ, Hu WH, Zhang Z, Da YX, Jia XD, Wang XC. One-Pot Synthesis of Allylamine Derivatives by Iodine- Catalyzed Three-Component Reaction of N-Heterocycles, Paraformaldehyde and Styrenes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201201097] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Zirakzadeh A, Groß MA, Wang Y, Mereiter K, Spindler F, Weissensteiner W. Biferrocene-Based Diphosphine Ligands: Synthesis and Application of Walphos Analogues in Asymmetric Hydrogenations. Organometallics 2013; 32:1075-1084. [PMID: 23457421 PMCID: PMC3584622 DOI: 10.1021/om3012147] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Indexed: 11/28/2022]
Abstract
A total of four biferrocene-based Walphos-type ligands have been synthesized, structurally characterized, and tested in the rhodium-, ruthenium- and iridium-catalyzed hydrogenation of alkenes and ketones. Negishi coupling conditions allowed the biferrocene backbone of these diphosphine ligands to be built up diastereoselectively from the two nonidentical and nonracemic ferrocene fragments (R)-1-(N,N-dimethylamino)ethylferrocene and (SFc)-2-bromoiodoferrocene. The molecular structures of (SFc)-2-bromoiodoferrocene, the coupling product, two ligands, and the two complexes ([PdCl2(L)] and [RuCl(p-cymene)(L)]PF6) were determined by X-ray diffraction. The structural features of complexes and the catalysis results obtained with the newly synthesized biferrocene-based ligands were compared with those of the corresponding Walphos ligands.
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Affiliation(s)
- Afrooz Zirakzadeh
- Institute of Organic Chemistry, University of Vienna , Währinger Straße 38, A-1090 Wien, Austria
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29
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Li Y, Xu MH. Lewis acid promoted highly diastereoselective Petasis Borono-Mannich reaction: efficient synthesis of optically active β,γ-unsaturated α-amino acids. Org Lett 2012; 14:2062-5. [PMID: 22480132 DOI: 10.1021/ol300581n] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient and straightforward method for the preparation of highly enantiomerically enriched β,γ-unsaturated α-amino acid derivatives by a Lewis acid promoted diastereoselective Petasis reaction of vinylboronic acid, N-tert-butanesulfinamide, and glyoxylic acid has been developed. The synthetic utilities of the approach were demonstrated by the rapid and convenient construction of challenging cyclopenta[c]proline derivatives.
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Affiliation(s)
- Yi Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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30
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Lafrance M, Roggen M, Carreira EM. Direkte, enantioselektive Iridium-katalysierte allylische Aminierung von racemischen Allylalkoholen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108287] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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31
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Lafrance M, Roggen M, Carreira EM. Direct, Enantioselective Iridium-Catalyzed Allylic Amination of Racemic Allylic Alcohols. Angew Chem Int Ed Engl 2012; 51:3470-3. [DOI: 10.1002/anie.201108287] [Citation(s) in RCA: 184] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Indexed: 01/14/2023]
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32
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Ginotra SK, Friest JA, Berkowitz DB. Halocarbocyclization entry into the oxabicyclo[4.3.1]decyl exomethylene-δ-lactone cores of linearifolin and zaluzanin A: exploiting combinatorial catalysis. Org Lett 2012; 14:968-71. [PMID: 22316136 DOI: 10.1021/ol203088g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A streamlined entry into the sesquiterpene lactone (SQL) cores of linearifolin and zaluzanin A is described. Stereochemistry is controlled through transformations uncovered by ISES (In Situ Enzymatic Screening). Absolute stereochemistry derives from kinetic resolution of 5-benzyloxypentene-1,2-oxide, utilizing a β-pinene-derived-Co(III)-salen. Relative stereochemistry (1,3-cis-fusion) is set via formal halometalation/carbocyclization, mediated by [Rh(O(2)CC(3)F(7))(2)](2)/LiBr. Subsequent ring-closing metathesis (RCM-Grubbs II) yields the title exomethylene-δ-lactone SQL cores. In complementary fashion, RCM with Grubbs-I catalyst provides the oxabicyclo[3.3.1]nonyl core of xerophilusin R and zinagrandinolide.
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Affiliation(s)
- Sandeep K Ginotra
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588-0304, USA
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33
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Skoda EM, Davis GC, Wipf P. Allylic Amines as Key Building Blocks in the Synthesis of (E)-Alkene Peptide Isosteres. Org Process Res Dev 2012; 16:26-34. [PMID: 22323894 PMCID: PMC3272643 DOI: 10.1021/op2002613] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Nucleophilic imine additions with vinyl organometallics have developed into efficient, high yielding, and robust methodologies to generate structurally diverse allylic amines. We have used the hydrozirconation-transmetalation-imine addition protocol in the synthesis of allylic amine intermediates for peptide bond isosteres, phosphatase inhibitors, and mitochondria-targeted peptide mimetics. The gramicidin S-derived XJB-5-131 and JP4-039 and their analogs have been prepared on up to 160 g scale for preclinical studies. These (E)-alkene peptide isosteres adopt type II' β-turn secondary structures and display impressive biological properties, including selective reactions with reactive oxygen species (ROS) and prevention of apoptosis.
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Affiliation(s)
- Erin M. Skoda
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Gary C. Davis
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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34
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Shi C, Geders TW, Park SW, Wilson DJ, Boshoff HI, Orisadipe A, Barry CE, Schnappinger D, Finzel BC, Aldrich CC. Mechanism-based inactivation by aromatization of the transaminase BioA involved in biotin biosynthesis in Mycobaterium tuberculosis. J Am Chem Soc 2011; 133:18194-201. [PMID: 21988601 PMCID: PMC3222238 DOI: 10.1021/ja204036t] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BioA catalyzes the second step of biotin biosynthesis, and this enzyme represents a potential target to develop new antitubercular agents. Herein we report the design, synthesis, and biochemical characterization of a mechanism-based inhibitor (1) featuring a 3,6-dihydropyrid-2-one heterocycle that covalently modifies the pyridoxal 5'-phosphate (PLP) cofactor of BioA through aromatization. The structure of the PLP adduct was confirmed by MS/MS and X-ray crystallography at 1.94 Å resolution. Inactivation of BioA by 1 was time- and concentration-dependent and protected by substrate. We used a conditional knock-down mutant of M. tuberculosis to demonstrate the antitubercular activity of 1 correlated with BioA expression, and these results provide support for the designed mechanism of action.
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Affiliation(s)
- Ce Shi
- Center for Drug Design, Academic Health Center, University of Minnesota, MN, 55455, United States
| | - Todd W. Geders
- Department of Medicinal Chemistry, University of Minnesota, MN, 55455, United States
| | - Sae Woong Park
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, NY, 10065, United States
| | - Daniel J. Wilson
- Center for Drug Design, Academic Health Center, University of Minnesota, MN, 55455, United States
| | - Helena I. Boshoff
- Tuberculosis Research Section, National Institute of Allergy and Infectious Diseases, Bethesda, MD, 20892, United States
| | - Abayomi Orisadipe
- Tuberculosis Research Section, National Institute of Allergy and Infectious Diseases, Bethesda, MD, 20892, United States
| | - Clifton E. Barry
- Tuberculosis Research Section, National Institute of Allergy and Infectious Diseases, Bethesda, MD, 20892, United States
| | - Dirk Schnappinger
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, NY, 10065, United States
| | - Barry C. Finzel
- Department of Medicinal Chemistry, University of Minnesota, MN, 55455, United States
| | - Courtney C. Aldrich
- Center for Drug Design, Academic Health Center, University of Minnesota, MN, 55455, United States
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35
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Friest JA, Broussy S, Chung WJ, Berkowitz DB. Combinatorial catalysis employing a visible enzymatic beacon in real time: synthetically versatile (pseudo)halometalation/carbocyclizations. Angew Chem Int Ed Engl 2011; 50:8895-9. [PMID: 21905180 PMCID: PMC3517167 DOI: 10.1002/anie.201103365] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Indexed: 01/10/2023]
Affiliation(s)
- Jacob A. Friest
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
| | - Sylvain Broussy
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
| | - Woo Jin Chung
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
| | - David B. Berkowitz
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
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36
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Friest JA, Broussy S, Chung WJ, Berkowitz DB. Combinatorial Catalysis Employing a Visible Enzymatic Beacon in Real Time: Synthetically Versatile (Pseudo)Halometalation/Carbocyclizations. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103365] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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37
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Frantz MC, Pierce JG, Pierce JM, Kangying L, Qingwei W, Johnson M, Wipf P. Large-scale asymmetric synthesis of the bioprotective agent JP4-039 and analogs. Org Lett 2011; 13:2318-21. [PMID: 21452836 DOI: 10.1021/ol200567p] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
JP4-039 is a novel nitroxide conjugate capable of crossing lipid bilayer membranes and scavenging reactive oxygen species (ROS). An efficient and scalable one-pot hydrozirconation-transmetalation-imine addition methodology has been developed for its asymmetric preparation. Furthermore, this versatile methodology allows for the synthesis of cyclopropyl and fluorinated analogs of the parent lead structure.
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Affiliation(s)
- Marie-Céline Frantz
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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38
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Applegate GA, Cheloha RW, Nelson DL, Berkowitz DB. A new dehydrogenase from Clostridium acetobutylicum for asymmetric synthesis: dynamic reductive kinetic resolution entry into the Taxotère side chain. Chem Commun (Camb) 2011; 47:2420-2. [PMID: 21173953 PMCID: PMC4882475 DOI: 10.1039/c0cc04585c] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An NADP-dependent alcohol dehydrogenase from Clostridium acetobutylicum (CaADH) has been expressed and characterized. CaADH enantioselectively reduces aromatic α-, β- and γ-keto esters to the corresponding D-hydroxy esters and provides a building block for the Taxotère side chain (95% yield, 95% de, 99% ee) by dynamic reductive kinetic resolution (DYRKR).
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Affiliation(s)
- Gregory A. Applegate
- Department of Chemistry &,Nebraska Center for Energy Sciences Research (NCESR), University of Nebraska, Lincoln, NE USA. Fax: 01 402 472 9402; 01 402 472 2738
| | - Ross W. Cheloha
- Department of Chemistry &,Nebraska Center for Energy Sciences Research (NCESR), University of Nebraska, Lincoln, NE USA. Fax: 01 402 472 9402; 01 402 472 2738
| | - David L. Nelson
- Department of Chemistry &,Nebraska Center for Energy Sciences Research (NCESR), University of Nebraska, Lincoln, NE USA. Fax: 01 402 472 9402; 01 402 472 2738
| | - David B. Berkowitz
- Department of Chemistry &,Nebraska Center for Energy Sciences Research (NCESR), University of Nebraska, Lincoln, NE USA. Fax: 01 402 472 9402; 01 402 472 2738
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39
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Begouin JM, Klein JEMN, Weickmann D, Plietker B. Allylic Substitutions Catalyzed by Miscellaneous Metals. TOP ORGANOMETAL CHEM 2011. [DOI: 10.1007/3418_2011_15] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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40
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Maleckis A, Klimovica K, Jirgensons A. Catalytic Enantioselective Synthesis of 4-Vinyl-2-trichloromethyloxazoline: An Access to Enantioenriched Vinylglycinol Surrogate. J Org Chem 2010; 75:7897-900. [DOI: 10.1021/jo101781y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ansis Maleckis
- Latvian Institute of Organic Synthesis, Riga, LV-1006, Latvia
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41
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Mayer M, Czaplik WM, Jacobi von Wangelin A. Practical Iron-Catalyzed Allylations of Aryl Grignard Reagents. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000228] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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42
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Roggen M, Carreira EM. Stereospecific Substitution of Allylic Alcohols To Give Optically Active Primary Allylic Amines: Unique Reactivity of a (P,alkene)Ir Complex Modulated by Iodide. J Am Chem Soc 2010; 132:11917-9. [DOI: 10.1021/ja105271z] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Markus Roggen
- Laboratorium für Organische Chemie, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Erick M. Carreira
- Laboratorium für Organische Chemie, ETH Zürich, CH-8093 Zürich, Switzerland
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43
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Riva R, Banfi L, Basso A, Cerulli V, Guanti G, Pani M. A Highly Convergent Synthesis of Tricyclic N-Heterocycles Coupling an Ugi Reaction with a Tandem SN2′-Heck Double Cyclization. J Org Chem 2010; 75:5134-43. [DOI: 10.1021/jo100859y] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Renata Riva
- Dipartimento di Chimica e Chimica Industriale, Via Docecaneso 31, 16146 Genova, Italy
| | - Luca Banfi
- Dipartimento di Chimica e Chimica Industriale, Via Docecaneso 31, 16146 Genova, Italy
| | - Andrea Basso
- Dipartimento di Chimica e Chimica Industriale, Via Docecaneso 31, 16146 Genova, Italy
| | - Valentina Cerulli
- Dipartimento di Chimica e Chimica Industriale, Via Docecaneso 31, 16146 Genova, Italy
| | - Giuseppe Guanti
- Dipartimento di Chimica e Chimica Industriale, Via Docecaneso 31, 16146 Genova, Italy
| | - Marcella Pani
- Dipartimento di Chimica e Chimica Industriale, Via Docecaneso 31, 16146 Genova, Italy
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Lumbroso A, Coeffard V, Le Grognec E, Beaudet I, Quintard JP. An efficient and scalable synthesis of N-(benzyloxycarbonyl)- and N-(methyloxycarbonyl)-(S)-vinylglycinol. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Regio- and stereoselective microwave-assisted synthesis of 5-alkyl-4-alkenyl-4-phenyl-1,3-oxazolidin-2-ones. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.12.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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46
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An improved protocol for the preparation of (S)-vinylglycine from (S)-methionine. Amino Acids 2010; 39:443-8. [DOI: 10.1007/s00726-009-0460-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2009] [Accepted: 12/21/2009] [Indexed: 10/19/2022]
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Development of a practical mass spectrometry based assay for determining enantiomeric excess. A fast and convenient method for the optimization of PLE-catalyzed hydrolysis of prochiral disubstituted malonates. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.05.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Miyabe H, Matsumura A, Yoshida K, Takemoto Y. Synthesis of chiral oxime ethers based on regio- and enantioselective allylic substitution catalyzed by iridium–pybox complex. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.04.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Broussy S, Cheloha RW, Berkowitz DB. Enantioselective, ketoreductase-based entry into pharmaceutical building blocks: ethanol as tunable nicotinamide reductant. Org Lett 2009; 11:305-8. [PMID: 19128188 PMCID: PMC6027600 DOI: 10.1021/ol802464g] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The use of NADH- and NADPH-dependent ketoreductases to access enantioenriched pharmaceutical building blocks is reported. Seven structurally diverse synthons are obtained, including those for atomoxetine (KRED 132), talampanel (RS1-ADH and CPADH), Dolastatin (KRED 132), and fluoxetine (KRED 108/132). Ethanol may be used as stoichiometric reductant, regenerating both nicotinamide cofactors, particularly under four-electron redox conditions. Its favorable thermodynamic and economic profile, coupled with its advantageous dual cosolvent role, suggests a new application for biomass-derived ethanol.
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Affiliation(s)
- Sylvain Broussy
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588-0304
| | - Ross W. Cheloha
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588-0304
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Narsireddy M, Yamamoto Y. Catalytic Asymmetric Intramolecular Hydroamination of Alkynes in the Presence of a Catalyst System Consisting of Pd(0)-Methyl Norphos (or Tolyl Renorphos)-Benzoic Acid. J Org Chem 2008; 73:9698-709. [DOI: 10.1021/jo801785r] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meda Narsireddy
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Yoshinori Yamamoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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