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Khandare SP, Reddy PO, Prasad KR. Addition of Lithium Anion of (Acetylmethylene)triphenylphosphorane to Nonracemic Sulfinimines: Total Synthesis of (+)-241D and Formal Total Synthesis of (+)-Preussin. Org Lett 2020; 22:7273-7277. [PMID: 32852218 DOI: 10.1021/acs.orglett.0c02608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The addition of lithium anion of (acetylmethylene)triphenylphosphorane to nonracemic sulfinimines was investigated. It was found that the addition proceeded with good diastereoselectivity and further reaction of the formed sulfinimidophosphorane with several aldehydes afforded the β-sulfinamido substituted enones in good yields. The resultant enones were elaborated to the synthesis of alkaloid (+)-241D, to the formal total synthesis of (+)-preussin, and to the synthesis of aminocyclopentenol.
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Affiliation(s)
- Sopan P Khandare
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Polimera Obula Reddy
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Kavirayani R Prasad
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
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Srivastava N, Macha L, Ha HJ. Stereoselective synthesis of 2,6-disubstituted piperidine alkaloids. Org Biomol Chem 2020; 18:5493-5512. [PMID: 32478370 DOI: 10.1039/d0ob00918k] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Among the large number of structurally diverse alkaloids, 2,6-disubstituted piperidine and its analogs have often been targeted when exploiting new synthetic techniques perhaps because of their strong pharmacological properties. This review outlines synthetic strategies to build the 2,6-disubstituted piperidine structural motif with a focus on stereochemical control of two substituents at C2 and C6. The key reactions in this process are then classified on the basis of how the piperidine rings were built with specific examples of natural products that control the stereochemical outcomes and their transition states.
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Affiliation(s)
- Nikhil Srivastava
- Department of Chemistry, Hankuk University of Foreign Studies, Yongin 17035, Korea.
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3
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Ourhzif EM, Decombat C, Abrunhosa-Thomas I, Delort L, Khouili M, Akssira M, Caldefie-Chezet F, Chalard P, Troin Y. Synthesis and Biological Evaluation of New Naphthoquinones Derivatives. Curr Org Synth 2020; 17:224-229. [DOI: 10.2174/1570179417666200212111956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 01/31/2023]
Abstract
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New substituted 1,4-naphthoquinones have been prepared in good overall yields through the
naphthol route. The cytotoxicity of these compounds was tested in vitro on MCF-7 breast tumor cells. The
most active compound 14 displayed an IC50 of 15μM.
Objective:
To investigate the cytotoxicity of new naphthoquinones derivatives on MCF-7 cells.
Methods:
Synthesis of new naphtoquinones derivatives and in vitro evaluation of their cytotoxicity on MCF-7
cells (rezasurin cell-based assay).
Results:
Starting from Ethyl 4-hydroxy-6,7-dimethoxy-2-naphthoate, four naphthoquinones were prepared and
exhibited substantial cytotoxicity against MCF-7 cells.
Conclusion:
Preliminary studies of the structure-activity relationship have shown the influence of the structural
parameters and, in particular, the nature of the naphthoquinone side chain.
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Affiliation(s)
- El-Mahdi Ourhzif
- Universite Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
| | - Caroline Decombat
- Universite Clermont Auvergne, INRA, Unite de Nutrition Humaine, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | | | - Laetitia Delort
- Universite Clermont Auvergne, INRA, Unite de Nutrition Humaine, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Mostafa Khouili
- Universite Sultan Moulay Slimane, FST, Laboratoire de Chimie Organique et Analytique, BP 523 Beni-Mellal, Morocco
| | - Mohamed Akssira
- Universite Hassan II Casablanca, FST, Laboratoire de Chimie Physique et Chimie Bio organique BP 146,28800 Mohammedia, Morocco
| | - Florence Caldefie-Chezet
- Universite Clermont Auvergne, INRA, Unite de Nutrition Humaine, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Pierre Chalard
- Universite Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
| | - Yves Troin
- Universite Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
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Visseq A, Boibessot T, Nauton L, Théry V, Anizon F, Abrunhosa-Thomas I. Diastereoselective Synthesis of 2,6-Disubstituted-1,2,3,6-Tetrahydropyridines through a Palladium-Catalyzed Intramolecular Allylic Amination. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Alexia Visseq
- Université Clermont Auvergne; CNRS; SIGMA Clermont; Institut de Chimie de Clermont-Ferrand; 63000 Clermont-Ferrand France
| | - Thibaut Boibessot
- Université Clermont Auvergne; CNRS; SIGMA Clermont; Institut de Chimie de Clermont-Ferrand; 63000 Clermont-Ferrand France
| | - Lionel Nauton
- Université Clermont Auvergne; CNRS; SIGMA Clermont; Institut de Chimie de Clermont-Ferrand; 63000 Clermont-Ferrand France
| | - Vincent Théry
- Université Clermont Auvergne; CNRS; SIGMA Clermont; Institut de Chimie de Clermont-Ferrand; 63000 Clermont-Ferrand France
| | - Fabrice Anizon
- Université Clermont Auvergne; CNRS; SIGMA Clermont; Institut de Chimie de Clermont-Ferrand; 63000 Clermont-Ferrand France
| | - Isabelle Abrunhosa-Thomas
- Université Clermont Auvergne; CNRS; SIGMA Clermont; Institut de Chimie de Clermont-Ferrand; 63000 Clermont-Ferrand France
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Lahosa A, Yus M, Foubelo F. Enantiodivergent Approach to the Synthesis of Cis-2,6-Disubstituted Piperidin-4-ones. J Org Chem 2019; 84:7331-7341. [PMID: 31063684 DOI: 10.1021/acs.joc.9b01008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Enantiopure β-amino ketone derivatives were synthesized by decarboxylative Mannich reaction of chiral N- tert-butanesulfinyl imines with β-keto acids and were subsequently transformed into cis-2,6-disubstituted piperidin-4-ones through an organocatalyzed condensation with aldehydes. Both enantiomers were accessible from the same precursors by inverting the order in the reaction sequence of the aldehydes involved in the imine formation and the intramolecular Mannich condensation. The synthesis of the piperidine alkaloids (+)-241D, (-)-epimyrtine, and (-)-lasubine II demonstrated the utility of this methodology.
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Affiliation(s)
- Alejandro Lahosa
- Departamento de Química Orgánica, Facultad de Ciencias , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Instituto de Síntesis Orgánica (ISO) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain
| | - Francisco Foubelo
- Departamento de Química Orgánica, Facultad de Ciencias , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Instituto de Síntesis Orgánica (ISO) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain
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Davies SG, Fletcher AM, Roberts PM, Thomson JE. The conjugate addition of enantiomerically pure lithium amides as chiral ammonia equivalents part III: 2012–2017. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.10.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kandepedu N, Abrunhosa-Thomas I, Troin Y. Stereoselective strategies for the construction of polysubstituted piperidinic compounds and their applications in natural products’ synthesis. Org Chem Front 2017. [DOI: 10.1039/c7qo00262a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An abridged and far-reaching review communication on the construction of the polysubstituted piperidinic core using diverse methodologies for the benefit of organic chemists interested in the total synthesis of biologically active compounds.
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Affiliation(s)
- Nishanth Kandepedu
- Université Clermont Auvergne
- SIGMA Clermont
- Institut de Chimie de Clermont-Ferrand
- F-63000 Clermont-Ferrand
- France
| | - Isabelle Abrunhosa-Thomas
- Université Clermont Auvergne
- SIGMA Clermont
- Institut de Chimie de Clermont-Ferrand
- F-63000 Clermont-Ferrand
- France
| | - Yves Troin
- Université Clermont Auvergne
- SIGMA Clermont
- Institut de Chimie de Clermont-Ferrand
- F-63000 Clermont-Ferrand
- France
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Reddy AA, Reddy PO, Prasad KR. Synthesis of β-Amino-Substituted Enones by Addition of Substituted Methyl Enones to Sulfinimines: Application to the Total Synthesis of Alkaloids (+)-Lasubine II and (+)-241D and the Formal Total Synthesis of (-)-Lasubine I. J Org Chem 2016; 81:11363-11371. [PMID: 27732001 DOI: 10.1021/acs.joc.6b01541] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Addition of silyl enol ethers obtained from substituted methyl enones to chiral sulfinimines afforded the β-amino-substituted enones with excellent selectivity. Utility of the obtained N-sulfinyl β-amino ketones possessing α,β-unsaturation is exemplified in the total synthesis of the quinolizidine alkaloid natural products (-)-lasubine I, (+)-lasubine II, and substituted piperidine alkaloid (+)-241-D.
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Affiliation(s)
| | - Polimera Obula Reddy
- Department of Organic Chemistry, Indian Institute of Science , Bangalore 560012, India
| | - Kavirayani R Prasad
- Department of Organic Chemistry, Indian Institute of Science , Bangalore 560012, India
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Xiong Y, Mei H, Han J, Li G, Pan Y. Asymmetric synthesis of β′-amino-α,β-enones via addition of α,β-unsaturated ketone-derived enolates to chiral N-phosphonyl imines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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