1
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Kim HS, Park H, Lim J, Lim C, Kim T, Lee S, Hur J, Sim J, Choi HJ, Suh YG. Collective Syntheses of Guaiane Sesquiterpenes: Stereoselective Syntheses of (+)-Dysodensiol F, (+)-10β,14-Dihydroxy- allo-aromadendrane, and (-)-Dendroside C Aglycon. J Org Chem 2020; 85:13779-13792. [PMID: 33049140 DOI: 10.1021/acs.joc.0c01907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A collective synthetic route for tricyclic guaiane sesquiterpenes and total syntheses of (+)-dysodensiol F, (+)-10β,14-dihydroxy-allo-aromadendrane, and (-)-dendroside C aglycon starting from a versatile hydroazulene intermediate were accomplished. The key features of these syntheses involve late-stage carbene-mediated diastereoselective cyclopropanation, construction of an unusual cis-fused-hydroazulene skeleton via intramolecular Dieckmann condensation, and highly stereoselective tandem conjugate addition/intramolecular allylic alkylation to afford a 5/7/3 tricyclic skeleton of guaiane natural products. The synthesis of (-)-dendroside C aglycon and the first total synthesis of (+)-dysodensiol F and (+)-10β,14-dihydroxy-allo-aromadendrane are described in detail. Activation of the Nrf2/ARE signaling pathway by (-)-dendroside C aglycon is also disclosed via our synthesis.
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Affiliation(s)
- Hyun Su Kim
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-si, Gyeonggi-do 11160, Korea
| | - Hyunkyung Park
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Juhee Lim
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-si, Gyeonggi-do 11160, Korea
| | - Changjin Lim
- College of Pharmacy, Jeonbuk National University, Jeonju 54896, Korea
| | - Taewoo Kim
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-si, Gyeonggi-do 11160, Korea
| | - Seungbeom Lee
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-si, Gyeonggi-do 11160, Korea
| | - Joonseong Hur
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), 679 Saimdang-ro, Gangneung 25451, Republic of Korea
| | - Jaehoon Sim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Hyun Jin Choi
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-si, Gyeonggi-do 11160, Korea
| | - Young-Ger Suh
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-si, Gyeonggi-do 11160, Korea.,College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
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2
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Subba Reddy CV, Sumathi S. l‐
Proline Catalyzed Synthesis of Highly Functionalized 4‐Hydroxy‐
4H
‐chromene‐pyrazoles and 4‐Hydroxy‐
4H
‐chromene‐barbiturates in Aqueous Medium. ChemistrySelect 2020. [DOI: 10.1002/slct.202001949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chitreddy V Subba Reddy
- Department of ChemistryVIT University Vellore 632014, Tamilnadu, Vellore India
- School of ChemistryThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Sun Yat-sen University, No. 135 Xingangxi Road Guangzhou 510275, People's Republic of China
| | - Shanmugam Sumathi
- Department of ChemistryVIT University Vellore 632014, Tamilnadu, Vellore India
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3
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Superbase-promoted multi-molecular acetylene/arylamine self-organization to 1-arylpyrroles. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.01.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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4
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Schmidt EY, Semenova NV, Ushakov IA, Vashchenko AV, Trofimov BA. Diastereoselective synthesis of 5-hydroxy-3-methylalkane-1,6-diones from ketones and acetylene in two atom-economic steps. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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5
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Kalita SJ, Deka DC. A Molecular Hybridization Approach for Simple and Expeditious Synthesis of Novel Spiro[oxindoline‐3, 4′‐isoxazolo[5, 4‐
b
]pyrazolo[4, 3‐
e
]pyridines] in Water. ChemistrySelect 2018. [DOI: 10.1002/slct.201801545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Subarna Jyoti Kalita
- Department of ChemistryUniversity of Gauhati, G. B. Nagar Guwahati 781014, Assam India
| | - Dibakar Chandra Deka
- Department of ChemistryUniversity of Gauhati, G. B. Nagar Guwahati 781014, Assam India
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6
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7
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Devi J, Kalita SJ, Deka DC. A Quick Micelle-Catalyzed One-Pot Synthesis of Spiro[indoline-3, 4′-pyrano[2, 3-c]pyrazoles] in Water at Room Temperature. ChemistrySelect 2018. [DOI: 10.1002/slct.201702716] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jutika Devi
- Department of Chemistry; University of Gauhati, G. B. Nagar; Guwahati 781014 Assam India
| | - Subarna Jyoti Kalita
- Department of Chemistry; University of Gauhati, G. B. Nagar; Guwahati 781014 Assam India
| | - Dibakar Chandra Deka
- Department of Chemistry; University of Gauhati, G. B. Nagar; Guwahati 781014 Assam India
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8
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Synthesis, antioxidant, antibacterial, solvatochromism and molecular docking studies of indolyl-4H-chromene-phenylprop-2-en-1-one derivatives. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.082] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Acetylene as driving and organizing molecule in the assembling reactions with chalcones in the NaOBu t /DMSO superbase system. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.01.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Bora P, Bora PP, Wahlang B, Bez G. Michael addition at neutral pH: a facile synthesis of 1,3-dinitroalkanes. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0257] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Base-catalyzed Michael addition of nitroalkane to conjugated nitroalkene suffers serious practical difficulties due to the formation of oligomeric byproduct. Given its importance for synthesis of pharmacologically relevant organic compounds, a scalable synthesis of 1,3-dinitroalkane is developed by addition of nitroalkane to nitroalkene in aqueous phosphate buffer at pH 7.0 with no added traditional base catalyst.
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Affiliation(s)
- Porag Bora
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
| | - Pranjal P. Bora
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
| | - Barisha Wahlang
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
| | - Ghanashyam Bez
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
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11
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Liu Y, Zhang Y, Duan HX, Wanyan DY, Wang YQ. Enantioselective organocatalytic Michael additions of N,N'-dialkylbarbituric acids to enones. Org Biomol Chem 2017; 15:8669-8679. [PMID: 28990625 DOI: 10.1039/c7ob02116j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N,N'-Dialkylbarbituric acids as cyclic malonamide donors were successfully used in the enantioselective Michael addition reaction of enones. Using cinchona alkaloid-based bifunctional squaramide as an organocatalyst, this Michael reaction of N,N'-di-tert-butylbarbituric acid with various enones features a highly enantioselective (91-99% ee) production of the corresponding optically active 5-substituted barbituric acid derivatives. The transformations of the Michael product for the barbituric acid structural unit were realized in two ways, deprotection to remove the N-tert-butyl group and alkylation to produce 5,5-disubstituted barbituric acid derivatives.
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Affiliation(s)
- Ying Liu
- Provincial Key Laboratory of Polyoxometalate Chemistry, Provincial Key Laboratory of Natural Medicine and Immuno-Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China.
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12
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Kalita SJ, Das B, Deka DC. A Quick, Simple and Clean Synthesis of Spiro(indoline-3,4′-pyrazolo[4′, 3′:5,6]pyrido[2, 3-d]pyrimidines) in Water through a Novel One-Pot Multicomponent Reaction. ChemistrySelect 2017. [DOI: 10.1002/slct.201701131] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Subarna Jyoti Kalita
- Department of Chemistry; University of Gauhati, G. B. Nagar; Guwahati 781014, Assam India
| | - Bidyut Das
- Department of Chemistry; University of Gauhati, G. B. Nagar; Guwahati 781014, Assam India
| | - Dibakar Chandra Deka
- Department of Chemistry; University of Gauhati, G. B. Nagar; Guwahati 781014, Assam India
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13
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Kalita SJ, Bayan R, Devi J, Brahma S, Mecadon H, Deka DC. A new, convenient and expeditious synthesis of 4-alkyl-5-methyl-1H-pyrazol-3-ols in water through a multicomponent reaction. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.084] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Kalita SJ, Saikia N, Deka DC, Mecadon H. Ni–Al2O3 as reusable heterogeneous catalyst for expedient one-pot synthesis of naphthopyrans. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2500-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Kalita SJ, Chandra Deka D, Mecadon H. Organocatalytic domino Knöevenagel–Michael reaction in water for the regioselective synthesis of benzo[4,5]imidazo[1,2-a]pyrimidines and pyrido[2,3-d]pyrimidin-2-amines. RSC Adv 2016. [DOI: 10.1039/c6ra21376f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An organocatalyzed aqueous media domino reaction is developed for the regioselective synthesis of benzo[4,5]imidazo[1,2-a]pyrimidines and pyrido[2,3-d]pyrimidin-2-amines.
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Affiliation(s)
| | | | - Hormi Mecadon
- Department of Chemistry
- University of Gauhati
- Guwahati 781014
- India
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16
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Mohammadi Ziarani G, Aleali F, Lashgari N. Recent applications of barbituric acid in multicomponent reactions. RSC Adv 2016. [DOI: 10.1039/c6ra09874f] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This review aims to show representative examples of multicomponent reactions utilizing barbituric acid in the synthesis of various heterocyclic structures.
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Affiliation(s)
| | | | - Negar Lashgari
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
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