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2
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Someswarao B, P. RK, Reddy BJM, B. S, B. VSR. Tandem Prins-type cyclization for the stereoselective construction of fused polycyclic ring systems. Org Chem Front 2018. [DOI: 10.1039/c7qo01164d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel strategy has been developed for the synthesis of fused tetrahydrofuro[3,2-c]pyrano[2,3-b]chromene derivatives through the condensation of 2-hydroxybenzaldehydes with 2-(3,4-dihydro-2H-pyran-5-yl)ethan-1-ol in the presence of 20 mol% TMSOTf.
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Affiliation(s)
- B. Someswarao
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- Laboratory of X-ray crystallography
| | - Rasvan Khan P.
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - B. Jagan Mohan Reddy
- Laboratory of X-ray crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - Sridhar B.
- Department of Organic Chemistry
- Adikavi Nannaya University
- Rajahmundry
- India
| | - V. Subba Reddy B.
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
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4
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Lukashenko AV, Osyanin VA, Osipov DV, Klimochkin YN. Reaction of Push–Pull Enaminoketones and in Situ Generated ortho-Quinone Methides: Synthesis of 3-Acyl-4H-chromenes and 2-Acyl-1H-benzo[f]chromenes as Precursors for Hydroxybenzylated Heterocycles. J Org Chem 2017; 82:1517-1528. [DOI: 10.1021/acs.joc.6b02716] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anton V. Lukashenko
- Department
of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| | - Vitaly A. Osyanin
- Department
of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
- Organic
Chemistry Department, Faculty of Science, RUDN University, 6 Miklukho-Maklaya
St., Moscow 117198, Russian Federation
| | - Dmitry V. Osipov
- Department
of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| | - Yuri N. Klimochkin
- Department
of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
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6
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Frasinyuk MS, Mrug GP, Bondarenko SP, Khilya VP, Sviripa VM, Syrotchuk OA, Zhang W, Cai X, Fiandalo MV, Mohler JL, Liu C, Watt DS. Antineoplastic Isoflavonoids Derived from Intermediate ortho-Quinone Methides Generated from Mannich Bases. ChemMedChem 2016; 11:600-11. [PMID: 26889756 PMCID: PMC4818953 DOI: 10.1002/cmdc.201600008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/08/2016] [Indexed: 12/31/2022]
Abstract
The regioselective condensations of various 7-hydroxyisoflavonoids with bis(N,N-dimethylamino)methane in a Mannich reaction provided C-8 N,N-dimethylaminomethyl-substituted isoflavonoids in good yield. Similar condensations of 7-hydroxy-8-methylisoflavonoids led to the C-6-substituted analogs. Thermal eliminations of dimethylamine from these C-6 or C-8 N,N-dimethylaminomethyl-substituted isoflavonoids generated ortho-quinone methide intermediates within isoflavonoid frameworks for the first time. Despite other potential competing outcomes, these ortho-quinone methide intermediates trapped dienophiles including 2,3-dihydrofuran, 3,4-dihydro-2H-pyran, 3-(N,N-dimethylamino)-5,5-dimethyl-2-cyclohexen-1-one, 1-morpholinocyclopentene, and 1-morpholinocyclohexene to give various inverse electron-demand Diels-Alder adducts. Several adducts derived from 8-N,N-dimethylaminomethyl-substituted isoflavonoids displayed good activity in the 1-10 μm concentration range in an in vitro proliferation assay using the PC-3 prostate cancer cell line.
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Affiliation(s)
- Mykhaylo S Frasinyuk
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA.
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536-0509, USA.
- Department of Chemistry of Bioactive Nitrogen-Containing Heterocyclic Bases, Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, Kyiv, 02094, Ukraine.
| | - Galyna P Mrug
- Department of Chemistry of Bioactive Nitrogen-Containing Heterocyclic Bases, Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, Kyiv, 02094, Ukraine
| | - Svitlana P Bondarenko
- Department of Chemistry, Taras Shevchenko Kyiv National University, Kyiv, 01601, Ukraine
| | - Volodymyr P Khilya
- Department of Chemistry, Taras Shevchenko Kyiv National University, Kyiv, 01601, Ukraine
| | - Vitaliy M Sviripa
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536-0509, USA
| | - Oleksandr A Syrotchuk
- Central Laboratory for Quality Control of Medicines and Medical Products, Kyiv, 04053, Ukraine
| | - Wen Zhang
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA
| | - Xianfeng Cai
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA
| | - Michael V Fiandalo
- Department of Urology, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - James L Mohler
- Department of Urology, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - Chunming Liu
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA
| | - David S Watt
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA.
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536-0509, USA.
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA.
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8
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Barbato KS, Luan Y, Ramella D, Panek JS, Schaus SE. Enantioselective Multicomponent Condensation Reactions of Phenols, Aldehydes, and Boronates Catalyzed by Chiral Biphenols. Org Lett 2015; 17:5812-5. [PMID: 26576776 PMCID: PMC4671505 DOI: 10.1021/acs.orglett.5b02954] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chiral diols and biphenols catalyze the multicomponent condensation reaction of phenols, aldehydes, and alkenyl or aryl boronates. The condensation products are formed in good yields and enantioselectivities. The reaction proceeds via an initial Friedel-Crafts alkylation of the aldehyde and phenol to yield an ortho-quinone methide that undergoes an enantioselective boronate addition. A cyclization pathway was discovered while exploring the scope of the reaction that provides access to chiral 2,4-diaryl chroman products, the core of which is a structural motif found in natural products.
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Affiliation(s)
- Keith S Barbato
- Center for Molecular Discovery, Boston University , 24 Cummington Mall, Boston, Massachusetts 02215, United States
| | - Yi Luan
- Center for Molecular Discovery, Boston University , 24 Cummington Mall, Boston, Massachusetts 02215, United States
| | - Daniele Ramella
- Center for Molecular Discovery, Boston University , 24 Cummington Mall, Boston, Massachusetts 02215, United States
| | - James S Panek
- Center for Molecular Discovery, Boston University , 24 Cummington Mall, Boston, Massachusetts 02215, United States
| | - Scott E Schaus
- Center for Molecular Discovery, Boston University , 24 Cummington Mall, Boston, Massachusetts 02215, United States
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