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Xie L, Zhao C, Wang Z, Chen Z, Zhao Y, Liu X, Xu X, Liu W, Li X, Wu L. Synthesis of Polycyclic Imidazolidinones via Cascade [3 + 2]-Annulation of β-Oxo-acrylamides with Cyclic N-Sulfonyl Imines. J Org Chem 2023; 88:15805-15816. [PMID: 37906181 DOI: 10.1021/acs.joc.3c01878] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
An Et3N-catalyzed cascade [3 + 2]-annulation of β-oxo-acrylamides with cyclic N-sulfonyl ketimines or sulfamate-derived imines is developed under mild reaction conditions, which provides a concise and efficient route to access valuable sultam- or sulfamidate-fused imidazolidinone derivatives in good to excellent yields (80-95% yields) with excellent diastereoselectivities (>20:1 drs). The current protocol features atom economy, a transition-metal-free process, and broad functional group tolerance. Moreover, the asymmetric variant of the [3 + 2]-cycloaddition reaction was achieved in the presence of diphenylethanediamine or quinine-based bifunctional squaramide organocatalysts C-1 and C-11, giving the corresponding chiral polycyclic imidazolidinones in 68-90% yields with 25-94% ees and >20:1 drs in all cases.
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Affiliation(s)
- Lei Xie
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
| | - Chenyi Zhao
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
| | - Zhaoxue Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
| | - Zirui Chen
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
| | - Yingying Zhao
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
| | - Xinghan Liu
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
| | - Xiangdong Xu
- Liaocheng Inspection and Testing Center, Liaocheng 252000, Shandong, P. R. China
| | - Wanxing Liu
- The Non-Public Enterprise Service Center of Liaocheng, Liaocheng 252000, Shandong, P. R. China
| | - Xiaojing Li
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
| | - Lingang Wu
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng 252000, Shandong, P. R. China
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2
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Lan W, Lei R, Luo J, Qin Z, Fu B, Xie L. A Facile Approach to Benzosultam‐fused 4‐Imidazolidinone Derivatives from N‐Sulfonyl Ketimine and α‐Halogenated Hydroxamates. ChemistrySelect 2022. [DOI: 10.1002/slct.202103670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenjie Lan
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Rong‐chao Lei
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Jiayu Luo
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Zhaohai Qin
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Bin Fu
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Lei Xie
- School of Pharmacy Liaocheng University Shandong 252000 P. R. China
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3
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Eagling L, Leonard DJ, Schwarz M, Urruzuno I, Boden G, Wailes JS, Ward JW, Clayden J. 'Reverse biomimetic' synthesis of l-arogenate and its stabilized analogues from l-tyrosine. Chem Sci 2021; 12:11394-11398. [PMID: 34667547 PMCID: PMC8447241 DOI: 10.1039/d1sc03554a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 07/12/2021] [Indexed: 11/21/2022] Open
Abstract
l-Arogenate (also known as l-pretyrosine) is a primary metabolite on a branch of the shikimate biosynthetic pathway to aromatic amino acids. It plays a key role in the synthesis of plant secondary metabolites including alkaloids and the phenylpropanoids that are the key to carbon fixation. Yet understanding the control of arogenate metabolism has been hampered by its extreme instability and the lack of a versatile synthetic route to arogenate and its analogues. We now report a practical synthesis of l-arogenate in seven steps from O-benzyl l-tyrosine methyl ester in an overall yield of 20%. The synthetic route also delivers the fungal metabolite spiroarogenate, as well as a range of stable saturated and substituted analogues of arogenate. The key step in the synthesis is a carboxylative dearomatization by intramolecular electrophilic capture of tyrosine's phenolic ring using an N-chloroformylimidazolidinone moiety, generating a versatile, functionalizable spirodienone intermediate. l-Tyrosine provides a precursor for a practical synthesis of the unstable primary metabolite l-arogenate and some stabilised arogenate analogues.![]()
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Affiliation(s)
- Louise Eagling
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Daniel J Leonard
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Maria Schwarz
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Iñaki Urruzuno
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Grace Boden
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - J Steven Wailes
- Jealott's Hill International Research Centre Bracknell RG42 6EY UK
| | - John W Ward
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
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4
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Schofield K, Foley C, Hulme C. 5- Endo Trig Oxidative Radical Cyclizations of Ugi-3CR Products toward 1,4-Imidazolidinones. Org Lett 2020; 23:107-112. [PMID: 33306404 DOI: 10.1021/acs.orglett.0c03785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A 5-endo trig oxidative radical cyclization of benzylamine-derived Ugi three-component reaction products rapidly affords imidazolidinones with three diversity elements. This adaptation of our previously described multicomponent reaction-oxidation methodology further showcases manipulation of the diversity elements in multicomponent reaction products via oxidative radical cyclizations, which generates highly decorated privileged heterocycles.
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Affiliation(s)
- Kevin Schofield
- Department of Chemistry and Biochemistry, College of Science, The University of Arizona, Tucson, Arizona 85721, United States
| | - Christopher Foley
- Department of Chemistry and Biochemistry, College of Science, The University of Arizona, Tucson, Arizona 85721, United States
| | - Christopher Hulme
- Department of Chemistry and Biochemistry, College of Science, The University of Arizona, Tucson, Arizona 85721, United States.,Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, Arizona 85721, United States
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Neerbye Berntsen L, Nova A, Wragg DS, Sandtorv AH. Cu-catalyzed N-3-Arylation of Hydantoins Using Diaryliodonium Salts. Org Lett 2020; 22:2687-2691. [PMID: 32202123 PMCID: PMC7309330 DOI: 10.1021/acs.orglett.0c00642] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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A general Cu-catalyzed,
regioselective method for the N-3-arylation of hydantoins
is described. The protocol utilizes aryl(trimethoxyphenyl)iodonium
tosylate as the arylating agent in the presence of triethylamine and
a catalytic amount of a simple Cu-salt. The method is compatible with
structurally diverse hydantoins and operates well with neutral aryl
groups or aryl groups bearing weakly donating/withdrawing elements.
It is also applicable for the rapid diversification of pharmaceutically
relevant hydantoins.
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Affiliation(s)
- Linn Neerbye Berntsen
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| | - Ainara Nova
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| | - David S Wragg
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| | - Alexander H Sandtorv
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
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Amer MM, Olaizola O, Carter J, Abas H, Clayden J. An Aliphatic Bischler-Napieralski Reaction: Dihydropyridones by Cyclocarbonylation of 3-Allylimidazolidin-4-ones. Org Lett 2020; 22:253-256. [PMID: 31846338 DOI: 10.1021/acs.orglett.9b04250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The N-chloroformylimidazolidinone derivative of enantiopure l-alanine was deprotonated to form an enolate and functionalized with a series of allylic halides. Treatment of the resulting carbamoyl chlorides with potassium iodide led to cyclization of the allylic substituent onto the carbonyl group in an intramolecular aliphatic Friedel-Crafts-type acylation that corresponds to an aliphatic Bischler-Napieralski reaction. The product 3,4-dihydropyridinones were amenable to further functionalization, and finally hydrolysis, to deliver a series of enantio-enriched pipecolic acid derivatives.
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Affiliation(s)
- Mostafa M Amer
- School of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom
| | - Olatz Olaizola
- School of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom
| | - Jennifer Carter
- School of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom
| | - Hossay Abas
- School of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom
| | - Jonathan Clayden
- School of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom
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