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Long J, Liu R, Mu X, Song Z, Zhang Z, Yang Z. Development of a Strategy for the Total Synthesis of Aspidosperma Alkaloids via the Cyclobutenone-Based PET-Initiated Cationic Radical-Driven [2+2]/Retro-Mannich Reaction. Org Lett 2024; 26:2960-2964. [PMID: 38592965 DOI: 10.1021/acs.orglett.4c00540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
A novel strategy for the synthesis of Aspidosperma alkaloids has been achieved via a photoredox-initiated [2+2]/retro-Mannich reaction of tryptamine-substituted enaminones as a key step. The developed chemistry has been applied to the construction of the core tetracycle of Aspidosperma alkaloids (±)-aspidospermidine and (±)-limaspermidine.
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Affiliation(s)
- Jianyu Long
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Rudong Liu
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xinpeng Mu
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Zhilin Song
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Zhongchao Zhang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS) and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
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Hamilton DJ, Ábrányi-Balogh P, Keeley A, Petri L, Hrast M, Imre T, Wijtmans M, Gobec S, de Esch IJP, Keserű GM. Bromo-Cyclobutenaminones as New Covalent UDP- N-Acetylglucosamine Enolpyruvyl Transferase (MurA) Inhibitors. Pharmaceuticals (Basel) 2020; 13:ph13110362. [PMID: 33153141 PMCID: PMC7692735 DOI: 10.3390/ph13110362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 01/08/2023] Open
Abstract
Drug discovery programs against the antibacterial target UDP-N-acetylglucosamine enolpyruvyl transferase (MurA) have already resulted in covalent inhibitors having small three- and five-membered heterocyclic rings. In the current study, the reactivity of four-membered rings was carefully modulated to obtain a novel family of covalent MurA inhibitors. Screening a small library of cyclobutenone derivatives led to the identification of bromo-cyclobutenaminones as new electrophilic warheads. The electrophilic reactivity and cysteine specificity have been determined in a glutathione (GSH) and an oligopeptide assay, respectively. Investigating the structure-activity relationship for MurA suggests a crucial role for the bromine atom in the ligand. In addition, MS/MS experiments have proven the covalent labelling of MurA at Cys115 and the observed loss of the bromine atom suggests a net nucleophilic substitution as the covalent reaction. This new set of compounds might be considered as a viable chemical starting point for the discovery of new MurA inhibitors.
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Affiliation(s)
- David J. Hamilton
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (D.J.H.); (M.W.); (I.J.P.d.E.)
- Medicinal Chemistry Research Group, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary; (P.Á.-B.); (A.K.); (L.P.)
| | - Péter Ábrányi-Balogh
- Medicinal Chemistry Research Group, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary; (P.Á.-B.); (A.K.); (L.P.)
| | - Aaron Keeley
- Medicinal Chemistry Research Group, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary; (P.Á.-B.); (A.K.); (L.P.)
| | - László Petri
- Medicinal Chemistry Research Group, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary; (P.Á.-B.); (A.K.); (L.P.)
| | - Martina Hrast
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, SI-1000 Ljubljana, Slovenia; (M.H.); (S.G.)
| | - Tímea Imre
- MS Metabolomics Research Group, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary;
| | - Maikel Wijtmans
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (D.J.H.); (M.W.); (I.J.P.d.E.)
| | - Stanislav Gobec
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, SI-1000 Ljubljana, Slovenia; (M.H.); (S.G.)
| | - Iwan J. P. de Esch
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (D.J.H.); (M.W.); (I.J.P.d.E.)
| | - György Miklós Keserű
- Medicinal Chemistry Research Group, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary; (P.Á.-B.); (A.K.); (L.P.)
- Correspondence: ; Tel.: +36-1-382-6821
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Carreira EM, Fessard TC. Four-Membered Ring-Containing Spirocycles: Synthetic Strategies and Opportunities. Chem Rev 2014; 114:8257-322. [DOI: 10.1021/cr500127b] [Citation(s) in RCA: 364] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Erick M. Carreira
- Laboratorium für Organische Chemie, and ‡SpiroChem AG, ETH-Zürich, Vladimir-Prelog-Weg
3, 8093 Zürich, Switzerland
| | - Thomas C. Fessard
- Laboratorium für Organische Chemie, and ‡SpiroChem AG, ETH-Zürich, Vladimir-Prelog-Weg
3, 8093 Zürich, Switzerland
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Nagai A, Okabe Y. Charge transfer (CT) mechanochromism: dramatic CT absorption change of crystalline π-conjugated oligomers containing TCNQ upon mechanical grinding. Chem Commun (Camb) 2014; 50:10052-4. [DOI: 10.1039/c4cc03879g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
New π-conjugated oligomers with high crystallinity were prepared from the simple solvothermal reaction of squaric acid and diaminopyrenes.
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Affiliation(s)
- Atsushi Nagai
- Department of Materials Molecular Science
- Institute for Molecular Science
- National Institutes of Natural Sciences
- Okazaki 444-8787, Japan
| | - Yuki Okabe
- Department of Structural Molecular Science
- School of Physical Sciences
- Graduate University for Advanced Studies
- Okazaki 444-8787, Japan
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López C, Vega M, Sanna E, Rotger C, Costa A. Efficient microwave-assisted preparation of squaric acid monoamides in water. RSC Adv 2013. [DOI: 10.1039/c3ra41369a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Liu D, Yu W, Li J, Pang C, Zhao L. Novel 2-(E)-substituted benzylidene-6-(N-substituted aminomethyl)cyclohexanones and cyclohexanols as analgesic and anti-inflammatory agents. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0362-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Melaimi M, Soleilhavoup M, Bertrand G. Stable cyclic carbenes and related species beyond diaminocarbenes. Angew Chem Int Ed Engl 2010; 49:8810-49. [PMID: 20836099 PMCID: PMC3130005 DOI: 10.1002/anie.201000165] [Citation(s) in RCA: 912] [Impact Index Per Article: 65.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The success of homogeneous catalysis can be attributed largely to the development of a diverse range of ligand frameworks that have been used to tune the behavior of various systems. Spectacular results in this area have been achieved using cyclic diaminocarbenes (NHCs) as a result of their strong σ-donor properties. Although it is possible to cursorily tune the structure of NHCs, any diversity is still far from matching their phosphorus-based counterparts, which is one of the great strengths of the latter. A variety of stable acyclic carbenes are known, but they are either reluctant to bind metals or they give rise to fragile metal complexes. During the last five years, new types of stable cyclic carbenes, as well as related carbon-based ligands (which are not NHCs), and which feature even stronger σ-donor properties have been developed. Their synthesis and characterization as well as the stability, electronic properties, coordination behavior, and catalytic activity of the ensuing complexes are discussed, and comparisons with their NHC cousins are made.
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Affiliation(s)
- Mohand Melaimi
- UCR-CNRS Joint Research Chemistry Laboratory (UMI 2957), Departement of Chemistry, University of California, Riverside, CA 92521-0403, USA
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Melaimi M, Soleilhavoup M, Bertrand G. Stabile cyclische Carbene und verwandte Spezies jenseits der Diaminocarbene. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201000165] [Citation(s) in RCA: 351] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Zhao YL, Yang SC, Di CH, Han XD, Liu Q. Highly efficient synthesis of 3-amino-/alkylthio-cyclobut-2-en-1-ones based on the cyclization of acyl ketene dithioacetals. Chem Commun (Camb) 2010; 46:7614-6. [DOI: 10.1039/c0cc02470h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Melaimi M, Parameswaran P, Donnadieu B, Frenking G, Bertrand G. Synthesis and Ligand Properties of a Persistent, All-Carbon Four-Membered-Ring Allene. Angew Chem Int Ed Engl 2009; 48:4792-5. [DOI: 10.1002/anie.200901117] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Melaimi M, Parameswaran P, Donnadieu B, Frenking G, Bertrand G. Synthesis and Ligand Properties of a Persistent, All‐Carbon Four‐Membered‐Ring Allene. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200901117] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Phillips DJ, Davenport RJ, Demaude TA, Galleway FP, Jones MW, Knerr L, Perry BG, Ratcliffe AJ. Imidazopyridines as VLA-4 integrin antagonists. Bioorg Med Chem Lett 2008; 18:4146-9. [DOI: 10.1016/j.bmcl.2008.05.075] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2008] [Revised: 05/20/2008] [Accepted: 05/20/2008] [Indexed: 11/30/2022]
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13
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Li J, Han Y, Freedman TB, Zhu S, Kerwood DJ, Luk YY. Utilizing the high dielectric constant of water: efficient synthesis of amino acid-derivatized cyclobutenones. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.01.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kohnen AL, Mak XY, Lam TY, Dunetz JR, Danheiser RL. [2+2] Cycloaddition of ketenes with ynamides. A general method for the synthesis of 3-aminocyclobutenone derivatives. Tetrahedron 2006; 62:3815-3822. [PMID: 21394235 DOI: 10.1016/j.tet.2005.11.088] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ynamides react with ketenes in [2+2] cycloadditions leading to a variety of substituted 3-aminocyclobut-2-en-1-ones. The ynamides employed in these reactions are readily available via the copper-promoted N-alkynylation of carbamates and sulfonamides with alkynyl bromides and iodides. The scope of the [2+2] cycloaddition with regard to both the ketene and ynamide component is described.
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Affiliation(s)
- Amanda L Kohnen
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Koldobskii GI. Strategies and prospects in functionalization of tetrazoles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2006. [DOI: 10.1134/s1070428006040014] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Xu Y, Yamamoto N, Ruiz DI, Kubitz DS, Janda KD. Squaric monoamide monoester as a new class of reactive immunization hapten for catalytic antibodies. Bioorg Med Chem Lett 2005; 15:4304-7. [PMID: 16046128 DOI: 10.1016/j.bmcl.2005.06.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2005] [Revised: 06/15/2005] [Accepted: 06/16/2005] [Indexed: 11/16/2022]
Abstract
A squaric monoester monoamide motif was employed as an effective reactive immunogen for the discovery of monoclonal antibodies with reactive residue(s) in their combining sites. Two antibodies, 2D4 and 3C8, were uncovered that enhance paraoxon hydrolysis over background. Kinetic analysis of these antibodies was performed and interestingly both undergo a single turnover event due to covalent modification within the antibody combining site. Because antibodies 2D4 and 3C8 result in covalent attachment and thus inactivation of paraoxon, they could be useful probes for investigating paraoxon intoxication.
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Affiliation(s)
- Yang Xu
- The Skaggs Institute for Chemical Biology, Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
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Reactions of 5-Methylsulfinyl-1-(4-nitrophenyl)tetrazole with N-Nucleophiles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2005. [DOI: 10.1007/s11178-005-0356-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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