1
|
Koroniak-Szejn K, Salamon-Krokosz K, Gołdyn M, Siodła T, Bartoszak-Adamska E, Koroniak H. Fluorinated Olefinic Lactams: The Case of Amino Acids – Preparation and Mechanistic Studies. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0041-1737346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractHerein, we report the synthesis of analogues of amino acids with a monofluorovinyl moiety. Interestingly, we have found that cyclization of the obtained products proceeds easily in all cases. The cyclization process has not previously been observed at this reaction stage, and such fluorinated lactams derived from phenylalanine, valine, alanine have not been described before.
Collapse
|
2
|
Huang J, Zheng J, Wu W, Li J, Ma Z, Ren Y, Jiang H. Palladium-Catalyzed Intermolecular Oxidative Cyclization of Allyltosylamides with AcOH: Assembly of 3-Pyrrolin-2-ones. J Org Chem 2017; 82:8191-8198. [PMID: 28686019 DOI: 10.1021/acs.joc.7b00804] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first example of Pd-catalyzed oxidative cyclization of allyltosylamides with acetic acid is reported. This transformation involved C-N/C-C bond formation and provided 3-pyrrolin-2-ones in a one-pot manner with easy-operation, excellent atom economy and good yields. Mechanistic studies indicate that the reaction proceeds through intermolecular aminopalladation, migratory insertion, reinsertion and β-hydride elimination processes.
Collapse
Affiliation(s)
- Jiuzhong Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Jia Zheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Zhiqiang Ma
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Yanwei Ren
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| |
Collapse
|
3
|
Han SJ, Stoltz BM. A mild and efficient approach to enantioenriched α-hydroxyethyl α,β-unsaturated δ-lactams. Tetrahedron Lett 2016; 57:2233-2235. [PMID: 27182092 DOI: 10.1016/j.tetlet.2016.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A straightforward approach toward enantioenriched α-substituted α,β-unsaturated δ-lactams is described. Although a considerable number of approches toward α,β-unsaturated δ-lactams have been reported, there are relatively few examples of enantioenriched α,δ-disubstituted α,β-unsaturated δ-lactams formation. The δ-stereocenter was formed by addition of allylmagnesium bromide to an N-tert-butylsulfinyl imine. The α,β-unsaturated δ-lactam was furnished by ring-closing metathesis. Although Baylis-Hillman chemistry failed on this cyclic compound, introduction of the hydroxyethyl group prior to ring-closing metathesis was successful. A Baylis-Hillman reaction was used to introduce the substituent at the α-position of the α,β-unsaturated lactam.
Collapse
Affiliation(s)
- Seo-Jung Han
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engi neering, California Institute of Technology, 1200 E California Boulevard, MC 101-20, Pasadena, CA 91125, USA
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engi neering, California Institute of Technology, 1200 E California Boulevard, MC 101-20, Pasadena, CA 91125, USA
| |
Collapse
|
4
|
Malde AK, Khedkar SA, Coutinho EC. The B(OH)-NH Analog Is a Surrogate for the Amide Bond (CO-NH) in Peptides: An ab Initio Study. J Chem Theory Comput 2015; 3:619-27. [PMID: 26637040 DOI: 10.1021/ct600256s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The conformational preferences of N-methyl-methylboronamide (NMB), a B(OH)-NH analog of the amide CO-NH in natural peptides, have been investigated at the Hartree-Fock; Becke's three-parameter exchange functional and the gradient-corrected functional of Lee, Yang, and Parr; and second-order Møller-Plesset levels of theory with the 6-31+G* basis set. The minima, saddle points, and rotation barriers on the potential energy surface of NMB have been located and the energy barriers estimated. Besides the global minimum, there are three local minima within 2.0 kcal mol(-)(1) of the global minimum characterized by specific ω and τ torsion values. The energy barriers for rotation about the "ω angle" are 16.4-18.8 kcal mol(-)(1) and are a consequence of the double-bond character of the B-N bond as revealed by natural bond orbitals calculations. The "ω angle" and the ω rotation barrier are nearly the same as those seen in natural peptides. The τ rotation barriers (B-O bond) are relatively low because of the single-bond character of the B-O bond. Ala-BON, the Ala-dipeptide derived from NMB, has been constructed as a model peptide to study the conformational preferences about the φ and ψ torsion angles. The study reveals a strong preference for α-helix, type-II β-turn, 2.27 ribbon, and antiparallel β-sheet conformations, and mirror images of both type-II β-turn and 2.27 ribbon motifs whose φ and ψ values fall in the "disfavored regions" of the Ramachandran map. Thus, the replacement of the carbonyl group by B-OH retains the geometry and barrier around the "ω angle" and induces a strong preference for regular secondary structure motifs and also structures with positive φ values. This makes the B(OH)-NH analog an important surrogate for the peptide bond, with the additional advantage of stability to proteolytic enzymes.
Collapse
Affiliation(s)
- Alpeshkumar K Malde
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai 400 098, India
| | - Santosh A Khedkar
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai 400 098, India
| | - Evans C Coutinho
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai 400 098, India
| |
Collapse
|
5
|
Pelkey ET, Pelkey SJ, Greger JG. De Novo Synthesis of 3-Pyrrolin-2-Ones. ADVANCES IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/bs.aihch.2015.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
6
|
Jebali K, Arfaoui A, Saâdi F, Lebreton J, Amri H. Direct Synthesis of 4-Acetyl-1-alkyl- 1H-pyrrol-2( 5H)-ones from Difunctionalized Allyl Bromide. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.938273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
7
|
α-Acryloylamidoalkyl Sulfones in a Synthetic Approach for the Preparation of 6-Alkyltetrahydropyridin-2-ones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
8
|
Aginagalde M, Bello T, Masdeu C, Vara Y, Arrieta A, Cossío FP. Formation of γ-Oxoacids and 1H-Pyrrol-2(5H)-ones from α,β-Unsaturated Ketones and Ethyl Nitroacetate. J Org Chem 2010; 75:7435-8. [DOI: 10.1021/jo101388x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Maialen Aginagalde
- Kimika Fakultatea, Kimika Organikoa I Saila, Universidad del País Vasco-Euskal Herriko Uniberstitatea, Manuel de Lardizabal Etorbidea 3, 20018 San Sebastián-Donostia, Spain
| | - Tamara Bello
- Kimika Fakultatea, Kimika Organikoa I Saila, Universidad del País Vasco-Euskal Herriko Uniberstitatea, Manuel de Lardizabal Etorbidea 3, 20018 San Sebastián-Donostia, Spain
| | - Carme Masdeu
- IkerChem, Ltd., Tolosa Etorbidea 72, 20018 San Sebastián-Donostia, Spain
| | - Yosu Vara
- IkerChem, Ltd., Tolosa Etorbidea 72, 20018 San Sebastián-Donostia, Spain
| | - Ana Arrieta
- Kimika Fakultatea, Kimika Organikoa I Saila, Universidad del País Vasco-Euskal Herriko Uniberstitatea, Manuel de Lardizabal Etorbidea 3, 20018 San Sebastián-Donostia, Spain
| | - Fernando P. Cossío
- Kimika Fakultatea, Kimika Organikoa I Saila, Universidad del País Vasco-Euskal Herriko Uniberstitatea, Manuel de Lardizabal Etorbidea 3, 20018 San Sebastián-Donostia, Spain
| |
Collapse
|
9
|
Arthuis M, Lecup A, Roulland E. Pd0-Catalyzed carbonylation of 1,1-dichloro-1-alkenes, a new selective access to Z-α-chloroacrylates. Chem Commun (Camb) 2010; 46:7810-2. [DOI: 10.1039/c0cc02517h] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
10
|
Jung SI, Tam NT, Cho CG. Bromination/Hydrolytic Fragmentation Reactions of α,β-Unsaturated N-Boc Lactams for the Synthesis of ω-Amino-trisubstituted (E)-Vinyl Bromides. B KOREAN CHEM SOC 2009. [DOI: 10.5012/bkcs.2009.30.12.2863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
11
|
Patel AB, Malpass JR. Potential Nicotinic Acetylcholine Receptor Ligands from 2,4-Methanoproline Derivatives. J Med Chem 2008; 51:7005-9. [DOI: 10.1021/jm800537a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anup B. Patel
- Department of Chemistry, University of Leicester, Leicester LE1 7RH, United Kingdom
| | - John R. Malpass
- Department of Chemistry, University of Leicester, Leicester LE1 7RH, United Kingdom
| |
Collapse
|
12
|
Samarat A, Ben Kraïem J, Ben Ayed T, Amri H. An efficient synthetic route to functionalized δ-lactams. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.057] [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]
|
13
|
Grison C, Olszewski TK. Lithiated alkylidenebis(phosphonates): Reactive phosphorus intermediates in the synthesis of 3‐amino‐1‐alkenylphosphonates. HETEROATOM CHEMISTRY 2008. [DOI: 10.1002/hc.20450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
14
|
Etxebarria J, Vicario JL, Badía D, Carrillo L. A general and enantiodivergent method for the asymmetric synthesis of piperidine alkaloids: concise synthesis of (R)-pipecoline, (S)-coniine and other 2-alkylpiperidines. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.08.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
15
|
Shrestha-Dawadi PB, Lugtenburg J. Efficient Preparation of [2-13C]- and [3-13C]-3-Cyano-4-methyl-3-pyrrolin-2-one. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600830] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
16
|
Coutrot P, Claudel S, Didierjean C, Grison C. Stereoselective synthesis and glycosidase inhibitory activity of 3,4-dihydroxy-pyrrolidin-2-one, 3,4-dihydroxy-piperidin-2-one and 1,2-dihydroxy-pyrrolizidin-3-one. Bioorg Med Chem Lett 2006; 16:417-20. [PMID: 16271473 DOI: 10.1016/j.bmcl.2005.09.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2005] [Revised: 09/23/2005] [Accepted: 09/23/2005] [Indexed: 11/16/2022]
Abstract
3,4-Dihydroxy-pyrrolidin-2-one, 3,4-dihydroxy-piperidin-2-one and 1,2-dihydroxy-pyrrolizidin-3-one have been synthesized, using a simple strategy based on the asymmetric dihydroxylation of vinylogous aminoesters and subsequent mild intramolecular cyclization. All these compounds show a partial inhibition of alpha-glucosidase, but were inactive towards other glycosidases.
Collapse
Affiliation(s)
- Philippe Coutrot
- Laboratoire de Chimie Organique Biomoléculaire, UMR 7565, Université Henri Poincaré, Nancy 1, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | | | | | | |
Collapse
|
17
|
Zask A, Birnberg G, Cheung K, Kaplan J, Niu C, Norton E, Yamashita A, Beyer C, Krishnamurthy G, Greenberger LM, Loganzo F, Ayral-Kaloustian S. D-piece modifications of the hemiasterlin analog HTI-286 produce potent tubulin inhibitors. Bioorg Med Chem Lett 2005; 14:4353-8. [PMID: 15261301 DOI: 10.1016/j.bmcl.2004.05.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2004] [Accepted: 05/05/2004] [Indexed: 10/26/2022]
Abstract
Modifications of the D-piece carboxylic acid group of the hemiasterlin analog HTI-286 gave tubulin inhibitors which were potent cytotoxic agents in taxol resistant cell lines expressing P-glycoprotein. Amides derived from proline had potency comparable to HTI-286. Reduction of the carboxylic acid to ketones and alcohols or its conversion to acidic heterocycles also gave potent analogs. Synthetic modifications of the carboxylic acid could be carried out selectively using a wide range of synthetic reagents. Proline analog 3 was found to be effective in a human xenograft model in athymic mice.
Collapse
Affiliation(s)
- Arie Zask
- Wyeth Research, Chemical and Screening Sciences, 401 North Middletown Road, Pearl River, NY 10965, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
|
19
|
Synthesis of 5-methoxylated 3-pyrrolin-2-ones via the rearrangement of chlorinated pyrrolidin-2-ones. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00044-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
20
|
|