1
|
Liang YJ, Gao YY, Han HB, Li L, Liu L. Enantioselective synthesis of 4-aryl-3,4-dihydrocoumarins via N-heterocyclic carbene catalyzed β-arylation/cyclization of α-bromoenals. Org Biomol Chem 2024; 22:5101-5104. [PMID: 38859801 DOI: 10.1039/d4ob00756e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
4-Aryl-3,4-dihydrocoumarins are one of the most important structural motifs. Herein, we disclose an enantioselective N-heterocyclic carbene catalyzed β-arylation/cyclization of α-bromoenals with 3-aminophenols under mild conditions. The protocol allows for the rapid preparation of 4-aryl-3,4-dihydrocoumarins in acceptable yields with good enantioselectivities. The products of this reaction could be converted into chiral diarylpropanoic acid derivatives without erosion of the enantioselectivity.
Collapse
Affiliation(s)
- Yu-Jing Liang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Yuan-Yuan Gao
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Hua-Bo Han
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Lu Li
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Lantao Liu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| |
Collapse
|
2
|
Banik S, Saikiran A, Permula P, Srivishnu KS, Sridhar B, Reddy BVS. Visible Light-Induced Metal-free Arylation of Coumarin-3-carboxylates with Arylboronic Acids. Chem Asian J 2024; 19:e202400042. [PMID: 38386270 DOI: 10.1002/asia.202400042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/13/2024] [Accepted: 02/21/2024] [Indexed: 02/23/2024]
Abstract
The present work represents a novel methodology for the selective arylation of coumarin-3-carboxylates with arylboronic acids via a photochemical route, marking the first-ever attempt for the direct alkenyl C-H arylation using rose bengal as a photocatalyst, which is a readily available and cost-effective alternative to transition metal catalysis. The reaction proceeds smoothly in MeOH/H2O solvent media in the presence of radical initiator affording the arylated products in good yields (60-80 %). The reaction parameters such as visible light, radical initiator, oxidant, anhydrous solvent, and inert atmosphere play a crucial role for the success of this methodology. The substituents present on the substrate show a significant effect on the conversion. This study provides a valuable contribution to the field of organic synthesis offering a new and efficient approach to the arylation of coumarin-3-carboxylic acid esters with a broad substrate scope and high functional group tolerance. It is a versatile method and provides a direct access to biologically relevant 4-arylcoumarin-3-carboxylates.
Collapse
Affiliation(s)
- Swarnayu Banik
- Fluoro &Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Aita Saikiran
- Fluoro &Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Prathyusha Permula
- Fluoro &Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - K S Srivishnu
- Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - B Sridhar
- Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - B V Subba Reddy
- Fluoro &Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| |
Collapse
|
3
|
Badalamenti N, Vaglica A, Porrello A, Maggio A, Bruno M, Lauricella M, D'Anneo A. Phytochemical investigation and antitumor activity of coumarins from Sicilian accession of Ferulago nodosa (L.) Boiss. roots. Nat Prod Res 2024; 38:1024-1035. [PMID: 37211799 DOI: 10.1080/14786419.2023.2213808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/03/2023] [Indexed: 05/23/2023]
Abstract
Ferulago nodosa (L.) Boiss. (Apiaceae) is a species occurring in the Balkan-Tyrrhenian area being present in Crete, Greece, Albania, and probably in Macedonia. From the roots of this accession of species, not previously investigated, four coumarins, grandivittin, aegelinol benzoate, felamidin and aegelinol, and two terpenoids, (2E)-3-methyl-4-[(3-methyl-1-oxo-2-buten-1yl)oxy]-2-butenoic acid and pressafonin-A, were isolated and spectroscopically characterized. The last one was never detected in Ferulago species. The evaluation of the anti-tumor effects of F. nodosa coumarins on colon cancer HCT116 cells showed only a modest effect on reduction of tumor cell viability. For aegelinol, the reduction of colon cancer cell viability already appears with 25 µΜ, while using 50 e 100 µM doses of marmesin the residual viability amounted to 70% and 54%, respectively. This effect resulted more evident at higher doses of compounds (at 200 µM from 80% to 0%). The most effective compounds resulted coumarins lacking ester group.
Collapse
Affiliation(s)
- Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Alessandro Vaglica
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Antonella Porrello
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Antonella Maggio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
- NBFC, National Biodiversity Future Center, Palermo, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
- NBFC, National Biodiversity Future Center, Palermo, Italy
- Interdepartmental Research Center "Bio-based Reuse of Waste from Agri-Food Matrices" (RIVIVE), University of Palermo, Palermo, Italy
| | - Marianna Lauricella
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, Institute of Biochemistry, University of Palermo, Palermo, Italy
| | - Antonella D'Anneo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, Laboratory of Biochemistry, University of Palermo, Palermo, Italy
| |
Collapse
|
4
|
Shui L, Liu F, Wang X, Ma C, Qiang Q, Shen M, Fang Y, Ni SF, Rong ZQ. Ligand-Induced chemodivergent nickel-catalyzed annulations via tandem isomerization/esterification and direct O-allylic substitution: Divergent access to 3,4-dihydrocoumarins and 2H-chromenes. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
|
5
|
Ziyaei Halimehjani A, Ghaffari Z. The chemistry of 2-hydroxy-β-nitrostyrenes: versatile intermediates in synthetic organic chemistry. Org Biomol Chem 2023; 21:2653-2688. [PMID: 36916212 DOI: 10.1039/d3ob00015j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
The applications of 2-hydroxy-β-nitrostyrenes as efficient bifunctional intermediates in organic synthesis are investigated in this review. For this purpose, reactions of 2-hydroxy-β-nitrostyrenes with diverse molecules, including carbonyl compounds, 1,3-dicarbonyl compounds, α,β-unsaturated carbonyl compounds, hemiacetals, nitroalkenes, γ-butenolides, tetronic acid, azalactones, pyrazolones, enamines, malononitrile, methyleneindolinones, ylides, etc., were investigated to construct interesting biologically active scaffolds such as chromans, chromenes, coumarins, benzofurans and their fused and spiro rings, natural products, and other useful cyclic and acyclic compounds. The main focus is on the asymmetric synthesis of these compounds via cascade/domino/tandem reactions catalyzed by chiral organocatalysts. In this review, around 60 papers reported between the years 2000 and 2022 are presented.
Collapse
Affiliation(s)
- Azim Ziyaei Halimehjani
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-9516, Tehran, Iran. .,Faculty of Chemistry, Kharazmi University, 49 Mofateh St, 15719-14911, Tehran, Iran.
| | - Zahra Ghaffari
- Faculty of Chemistry, Kharazmi University, 49 Mofateh St, 15719-14911, Tehran, Iran.
| |
Collapse
|
6
|
Miyata R, Shigeta T, Egi M, Kumazawa S. Selective Syntheses of Coumarin and Benzofuran Derivatives Using Phenols and α-Methoxy-β-ketoesters. SYNOPEN 2023. [DOI: 10.1055/s-0042-1751408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
AbstractSelective syntheses of coumarin and benzofuran derivatives were achieved via HClO4-mediated intermolecular annulation using phenols and α-methoxy-β-ketoesters. Coumarins are formed under dehydrated conditions, whereas benzofurans are formed in the presence of water. In the synthetic process of benzofurans, α-methoxy-β-ketoesters are converted into α-methoxyacetophenones, and the methoxy group is an important element in the intermolecular annulation.
Collapse
|
7
|
Borrego LG, Recio R, Moreno N, Chelouan A, Álvarez E, Sánchez-Coronilla A, Caro C, Pearson JR, García-Martín ML, Khiar N, Fernández I. Enantioselective synthesis of 4-amino-3,4-dihydrocoumarins and their non-cyclic hydroxyester precursors: Biological evaluation for the treatment of glioblastoma multiforme. Eur J Med Chem 2022; 243:114730. [DOI: 10.1016/j.ejmech.2022.114730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/04/2022]
|
8
|
Chaudhary D, Bedi P, Santra S, Pramanik T. Synthesis and Biological Properties of Coumarin Analogue: A Brief
Review. LETT ORG CHEM 2022. [DOI: 10.2174/1570178618666210202152452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
One of the most prominent aromatic organic chemical compound is Coumarin having formula C9H6O2 which
is widely known for its benefits in drug industry. Colourless crystalline solid having sweet scent is coumarin’s physical
identity. It serves various purposes such as in synthesis of medicines, laser dyes, perfumes and many more. Having enormous
usages it becomes important to synthesize such compound so various reactions were performed in order to obtain coumarins.
This review explicates the preparation of coumarin by Pechmann Condensation and its biological characteristics.
Collapse
Affiliation(s)
- Diksha Chaudhary
- Department of Chemistry, School of Chemical Engineering and Physical Science, Faculty of Technology and Sciences,
Lovely Professional University, Phagwara, P.O.Box 144411, India
| | - Pooja Bedi
- Department of Chemistry, School of Chemical Engineering and Physical Science, Faculty of Technology and Sciences,
Lovely Professional University, Phagwara, P.O.Box 144411, India
| | - Soumava Santra
- Department of Chemistry, School of Chemical Engineering and Physical Science, Faculty of Technology and Sciences,
Lovely Professional University, Phagwara, P.O.Box 144411, India
| | - Tanay Pramanik
- Department of Chemistry, University of Engineering
and Management, University Area, Action Area III, B/5, Newtown, Kolkata-700160, India
| |
Collapse
|
9
|
Lai J, Yang C, Csuk R, Song B, Li S. Palladium Catalyzed Enantioselective Hayashi-Miyaura Reaction for Pharmaceutically Important 4-Aryl-3,4-dihydrocoumarins. Org Lett 2022; 24:1329-1334. [PMID: 35133842 DOI: 10.1021/acs.orglett.1c04366] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first palladium-catalyzed asymmetric addition of arylboronic acids to coumarins was successfully established, providing a straightforward asymmetric approach to achieving pharmaceutically important 4-aryl-3,4-dihydrocoumarins. This methodology features easily accessible and bench-stable ligands, a wide substrate scope, mild conditions, and accommodation of electron-withdrawing arylboronic acids.
Collapse
Affiliation(s)
- Jixing Lai
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Chen Yang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - René Csuk
- Organic Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 2, D-06120 Halle (Saale), Germany
| | - Baoan Song
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Shengkun Li
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| |
Collapse
|
10
|
Srivastava V, Singh PK, Tivari S, Singh PP. Visible light photocatalysis in the synthesis of pharmaceutically relevant heterocyclic scaffolds. Org Chem Front 2022. [DOI: 10.1039/d1qo01602d] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Visible light and photoredox catalysis have emerged as a powerful and long-lasting tool for organic synthesis, demonstrating the importance of a variety of chemical bond formation methods.
Collapse
Affiliation(s)
- Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Pravin K. Singh
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Shraddha Tivari
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Praveen P. Singh
- Department of Chemistry, United College of Engineering & Research, Naini, Prayagraj 211010, India
| |
Collapse
|
11
|
Kaur R, Singh D, Singh RP. Stereoselective Synthesis of Dihydrocoumarins via [1,2]-Phospha-Brook Rearrangement in Three-Component Coupling Reaction of α-Ketoesters, o-Quinone Methides, and Dialkyl Phosphites. J Org Chem 2021; 86:15702-15711. [PMID: 34637300 DOI: 10.1021/acs.joc.1c01414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A highly regio- and diastereoselective approach for the synthesis of phosphate substituted dihydrocoumarins via Brønsted base catalyzed [1,2]-phospha-Brook rearrangement is reported. The two-step, one-pot Michael addition of α-phosphonyloxy enolates proceeds by coupling of dialkyl phosphite and α-ketoesters to o-quinone methides, followed by an intramolecular cyclization, providing 3,4-dihydrocoumarin frameworks.
Collapse
Affiliation(s)
- Ravneet Kaur
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Dipak Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ravi P Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| |
Collapse
|
12
|
Katopodi A, Tsotsou E, Iliou T, Deligiannidou GE, Pontiki E, Kontogiorgis C, Tsopelas F, Detsi A. Synthesis, Bioactivity, Pharmacokinetic and Biomimetic Properties of Multi-Substituted Coumarin Derivatives. Molecules 2021; 26:5999. [PMID: 34641543 PMCID: PMC8512853 DOI: 10.3390/molecules26195999] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/20/2021] [Accepted: 09/28/2021] [Indexed: 11/17/2022] Open
Abstract
A series of novel multi-substituted coumarin derivatives were synthesized, spectroscopically characterized, and evaluated for their antioxidant activity, soybean lipoxygenase (LOX) inhibitory ability, their influence on cell viability in immortalized human keratinocytes (HaCaT), and cytotoxicity in adenocarcinomic human alveolar basal epithelial cells (A549) and human melanoma (A375) cells, in vitro. Coumarin analogues 4a-4f, bearing a hydroxyl group at position 5 of the coumarin scaffold and halogen substituents at the 3-phenyl ring, were the most promising ABTS•+ scavengers. 6,8-Dibromo-3-(4-hydroxyphenyl)-4-methyl-chromen-2-one (4k) and 6-bromo-3-(4,5-diacetyloxyphenyl)-4-methyl-chromen-2-one (3m) exhibited significant lipid peroxidation inhibitory activity (IC50 36.9 and 37.1 μM). In the DCF-DA assay, the 4'-fluoro-substituted compound 3f (100%), and the 6-bromo substituted compounds 3i (80.9%) and 4i (100%) presented the highest activity. The 3'-fluoro-substituted coumarins 3e and 4e, along with 3-(4-acetyloxyphenyl)-6,8-dibromo-4-methyl-chromen-2-one (3k), were the most potent lipoxygenase (LOX) inhibitors (IC50 11.4, 4.1, and 8.7 μM, respectively) while displaying remarkable hydroxyl radical scavenging ability, 85.2%, 100%, and 92.9%, respectively. In silico docking studies of compounds 4e and 3k, revealed that they present allosteric interactions with the enzyme. The majority of the analogues (100 μΜ) did not affect the cell viability of HaCaT cells, though several compounds presented over 60% cytotoxicity in A549 or A375 cells. Finally, the human oral absorption (%HOA) and plasma protein binding (%PPB) properties of the synthesized coumarins were also estimated using biomimetic chromatography, and all compounds presented high %HOA (>99%) and %PPB (60-97%) values.
Collapse
Affiliation(s)
- Annita Katopodi
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, Greece; (A.K.); (E.T.)
| | - Evangelia Tsotsou
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, Greece; (A.K.); (E.T.)
- Laboratory of Inorganic and Analytical Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, Greece;
| | - Triantafylia Iliou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (T.I.); (G.-E.D.); (C.K.)
| | - Georgia-Eirini Deligiannidou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (T.I.); (G.-E.D.); (C.K.)
| | - Eleni Pontiki
- Laboratory of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Christos Kontogiorgis
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (T.I.); (G.-E.D.); (C.K.)
| | - Fotios Tsopelas
- Laboratory of Inorganic and Analytical Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, Greece;
| | - Anastasia Detsi
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, Greece; (A.K.); (E.T.)
| |
Collapse
|
13
|
Gharui C, Parida C, Pan SC. Organocatalytic Asymmetric Addition of Aromatic α-Cyanoketones to o-Quinone Methides: Synthesis of 3,4-Dihydrocoumarins and Tetrasubstituted Chromans. J Org Chem 2021; 86:13071-13081. [PMID: 34464133 DOI: 10.1021/acs.joc.1c00435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The first organocatalytic asymmetric addition of aromatic α-cyanoketones to in situ-generated o-quinone methides has been developed. The products 3,4-dihydrocoumarin and tetrasubstituted chroman were obtained via addition of aromatic α-cyanoketones to in situ-generated o-quinone methides followed by treatment with 0.7 N HCl. With 10 mol % catalyst, the desired products were obtained in high enantio- and diastereoselectivities.
Collapse
Affiliation(s)
- Chandan Gharui
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| |
Collapse
|
14
|
Zhao M, Li F, Cheng Y, Wang Y, Zhou Z. Optically Active 3,4-Dihydrocoumarins via Organocatalyzed Asymmetric [4+2] Annulation of ortho-Hydroxyl Functionalized p-Quinone Methides with β-Keto Acylpyrazoles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
15
|
Albino de Souza G, de Castro Bezerra F, Martins TD. Photophysical Properties of Fluorescent Self-Assembled Peptide Nanostructures for Singlet Oxygen Generation. ACS OMEGA 2020; 5:8804-8815. [PMID: 32337442 PMCID: PMC7178805 DOI: 10.1021/acsomega.0c00381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
In this work, a drug delivery system for perillyl alcohol based on the peptide self-assembly containing 3-(2-benzothiazolyl)-7-(diethylamino)coumarin (C6) as a fluorescent additive is obtained, and its photophysical characteristics as well as its release dynamics were studied by steady-state and time-resolved fluorescence spectroscopy. Results proved the dynamics of drug release from the peptide nanostructures and showed that the system formed by the self-assembled peptide and C6, along with perillyl alcohol, presents unique photophysical properties that can be exploited to generate singlet oxygen (1O2) upon irradiation, which is not achieved by the sole components. Through epifluorescence microscopy combined with time-correlated single photon counting fluorescence spectroscopy, the release mechanism was proven to occur upon peptide structure interconversion, which is controlled by environmental changes.
Collapse
Affiliation(s)
- Geovany Albino de Souza
- Chemistry Institute, Federal University of Goiás, Av. Esperança, s/n, Vila Itatiaia, BR 74690900 Goiânia, Goiás, Brazil
| | | | - Tatiana Duque Martins
- Chemistry Institute, Federal University of Goiás, Av. Esperança, s/n, Vila Itatiaia, BR 74690900 Goiânia, Goiás, Brazil
| |
Collapse
|
16
|
Yu J, Ying P, Wang H, Xiang K, Su W. Mechanochemical Asymmetric Cross‐Dehydrogenative Coupling Reaction: Liquid‐Assisted Grinding Enables Reaction Acceleration and Enantioselectivity Control. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901363] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jingbo Yu
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Ping Ying
- College of Pharmaceutical ScienceZhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Hao Wang
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Keyu Xiang
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Weike Su
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 People's Republic of China
| |
Collapse
|
17
|
Yun Y, Yang J, Miao Y, Wang X, Sun J. Synthesis and biological evaluation of 4-arylcoumarins as potential anti-Alzheimer's disease agents. Bioorg Med Chem Lett 2019; 30:126900. [PMID: 31882295 DOI: 10.1016/j.bmcl.2019.126900] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/25/2019] [Accepted: 12/09/2019] [Indexed: 12/17/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurological degenerative disease that has complex pathogenesis. A variety of studies in humans indicate that several enzymes inhibitors can be useful in the treatment of AD, including acetylcholinesterase (AchE), butyrylcholinesterase (BuChE) and monoamine oxidase (MAO). Various substituted 4-arylcoumarin derivatives were synthesised, and their activity in vitro were investigated, including AChE/BuChE inhibitory activity, MAO inhibitory activity, and antioxidant activity. Most of the compounds were found to exhibit high inhibitory activity, and individual compounds have extremely excellent activities. Therefore 4-arylcoumarins provides an idea for drugs design for the development of therapeutic or preventive agents for AD.
Collapse
Affiliation(s)
- Yinling Yun
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China; Institute of MateriaMedica, Shandong Academy of Medical Sciences, Jinan, Shandong, China; Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, Shandong, China; Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Jie Yang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China; Institute of MateriaMedica, Shandong Academy of Medical Sciences, Jinan, Shandong, China; Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, Shandong, China; Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Yuhang Miao
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China; Institute of MateriaMedica, Shandong Academy of Medical Sciences, Jinan, Shandong, China; Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, Shandong, China; Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Xiaojing Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China; Institute of MateriaMedica, Shandong Academy of Medical Sciences, Jinan, Shandong, China; Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, Shandong, China; Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China.
| | - Jie Sun
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China; Institute of MateriaMedica, Shandong Academy of Medical Sciences, Jinan, Shandong, China; Key Laboratory for Biotech-Drugs Ministry of Health, Jinan, Shandong, China; Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China.
| |
Collapse
|
18
|
Lv D, Zhao M, Wang Y, Zhou Z. 3-Nitro-3,4-dihydrocoumarins: valuable precursors for the synthesis of enantiomerically enriched masked quaternary α-amino acid derivatives with a 3,4-dihydrocoumarin scaffold. Org Biomol Chem 2019; 17:9636-9645. [PMID: 31670332 DOI: 10.1039/c9ob02089f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A bifunctional squaramide catalyzed enantioselective formal [2 + 4] annulation reaction with 3-nitro-3,4-dihydrocoumarins and ortho-quinone methide has been developed. Novel chiral masked quaternary α-amino acid derivatives with a 3,4-dihydrocoumarin scaffold are obtained in a highly stereocontrolled manner. Representative transformation of the annulation product to a biologically important quaternary α-amino acid derivative is achieved without any appreciable loss in the diastereo- and enantioselectivity.
Collapse
Affiliation(s)
- Dan Lv
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Min Zhao
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Youming Wang
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Zhenghong Zhou
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| |
Collapse
|
19
|
Suay-García B, Alemán-López PA, Bueso-Bordils JI, Falcó A, Antón-Fos G, Pérez-Gracia MT. New solvent options for in vivo assays in the Galleria mellonella larvae model. Virulence 2019; 10:776-782. [PMID: 31451073 PMCID: PMC6735471 DOI: 10.1080/21505594.2019.1659663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Experimentation in mammals is a long and expensive process in which ethical aspects must be considered, which has led the scientific community to develop alternative models such as that of Galleria mellonella. This model is a cost and time effective option to act as a filter in the drug discovery process. The main limitation of this model is the lack of variety in the solvents used to administer compounds, which limits the compounds that can be studied using this model. Five aqueous (DMSO, MeOH, acetic acid, HCl and NaOH) and four non-aqueous (olive oil, isopropyl myristate, benzyl benzoate and ethyl oleate) solvents was assessed to be used as vehicles for toxicity and antimicrobial activity in vivo assays. All the tested solvents were innocuous at the tested concentrations except for NaOH, which can be used at a maximum concentration of 0.5 M. The toxicity of two additional compounds, 5-aminosalicylic acid and DDT, was also assessed. The results obtained allow for the testing of a broader range of compounds using wax moth larvae. This model appears as an alternative to mammal models, by acting as a filter in the drug development process and reducing costs and time invested in new drugs.
Collapse
Affiliation(s)
- Beatriz Suay-García
- Departamento de Farmacia, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud. Universidad Cardenal Herrera-CEU , Valencia , España
| | - Pedro A Alemán-López
- Departamento de Farmacia, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud. Universidad Cardenal Herrera-CEU , Valencia , España
| | - José Ignacio Bueso-Bordils
- Departamento de Farmacia, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud. Universidad Cardenal Herrera-CEU , Valencia , España
| | - Antonio Falcó
- ESI International Chair@CEU-UCH. Departamento de Matemáticas, Física y Ciencias Tecnológicas. Universidad Cardenal Herrera-CEU , Valencia , España
| | - Gerardo Antón-Fos
- Departamento de Farmacia, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud. Universidad Cardenal Herrera-CEU , Valencia , España
| | - María Teresa Pérez-Gracia
- Departamento de Farmacia, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud. Universidad Cardenal Herrera-CEU , Valencia , España
| |
Collapse
|
20
|
Novel 6a,12b-Dihydro-6 H,7 H-chromeno[3,4-c] chromen-6-ones: Synthesis, Structure and Antifungal Activity. Molecules 2019; 24:molecules24091745. [PMID: 31060338 PMCID: PMC6539249 DOI: 10.3390/molecules24091745] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 11/24/2022] Open
Abstract
A new series of coumarin derivatives, 7-hydroxy-7-(trifluoromethyl)-6a,12b-dihydro-6H,7H-chromeno[3,4-c]chromen-6-ones 3a–p, were synthesized via Michael addition, transesterification and nucleophilic addition from the reaction of 3-trifluoroacetyl coumarins and phenols in the presence of an organic base. The products were characterized by infrared spectroscopy (IR), hydrogen nuclear magnetic resonance spectroscopy (1H-NMR), carbon nuclear magnetic resonance spectroscopy (13C-NMR) and high-resolution mass spectrometer (HRMS). Single crystal X-ray analysis of compounds 3a and 3n clearly confirmed their assigned chemical structures and their twisted conformations. Compound 3a crystallized in the orthorhombic system, Pbca, in which a = 8.6244(2) Å, b = 17.4245(4) Å, c = 22.5188(6) Å, α = 90°, β = 90°, γ = 90°, v = 3384.02(14) Å3, and z = 8. In addition, the mycelial growth rate method was used to examine the in vitro antifungal activities of the title compounds 3a–p against Fusarium graminearum and Fusarium monitiforme at 500 µg/mL. The results showed that compound 3l exhibited significant anti-Fusarium monitiforme activity with inhibitory index of 84.6%.
Collapse
|
21
|
|
22
|
Hu Y, Wang B, Yang J, Liu T, Sun J, Wang X. Synthesis and biological evaluation of 3-arylcoumarin derivatives as potential anti-diabetic agents. J Enzyme Inhib Med Chem 2018; 34:15-30. [PMID: 30362362 PMCID: PMC6211316 DOI: 10.1080/14756366.2018.1518958] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A variety of substituted 3-arylcoumarin derivatives were synthesised through microwave radiation heating. The method has characteristics of environmental friendliness, economy, simple separation, and purification process, less by-products and high reaction yield. Those 3-arylcoumarin derivatives were screened for antioxidant, α-glucosidase inhibitory and advanced glycation end-products (AGEs) formation inhibitory. Most compounds exhibited significant antioxidant and AGEs formation inhibitory activities. Anti-diabetic activity studies showed that compounds 11 and 17 were equipotent to the standard drug glibenclamide in vivo. According to the experimental results, the target compound 35 can be used as a lead compound for the development of new anti-diabetic drugs. The whole experiment showed that anti-diabetic activity is prevalent in 3-arylcoumarins, which added a new natural skeleton to the development of anti-diabetic active drugs.
Collapse
Affiliation(s)
- Yuheng Hu
- a School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan , Shandong , China.,b Institute of MateriaMedica , Shandong Academy of Medical Sciences , Jinan , Shandong , China.,c Key Laboratory for Biotech-Drugs Ministry of Health , Jinan , Shandong , China.,d Key Laboratory for Rare & Uncommon Diseases of Shandong Province , Jinan , Shandong , China
| | - Bing Wang
- a School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan , Shandong , China.,b Institute of MateriaMedica , Shandong Academy of Medical Sciences , Jinan , Shandong , China.,c Key Laboratory for Biotech-Drugs Ministry of Health , Jinan , Shandong , China.,d Key Laboratory for Rare & Uncommon Diseases of Shandong Province , Jinan , Shandong , China
| | - Jie Yang
- a School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan , Shandong , China.,b Institute of MateriaMedica , Shandong Academy of Medical Sciences , Jinan , Shandong , China.,c Key Laboratory for Biotech-Drugs Ministry of Health , Jinan , Shandong , China.,d Key Laboratory for Rare & Uncommon Diseases of Shandong Province , Jinan , Shandong , China
| | - Teng Liu
- a School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan , Shandong , China.,b Institute of MateriaMedica , Shandong Academy of Medical Sciences , Jinan , Shandong , China.,c Key Laboratory for Biotech-Drugs Ministry of Health , Jinan , Shandong , China.,d Key Laboratory for Rare & Uncommon Diseases of Shandong Province , Jinan , Shandong , China
| | - Jie Sun
- a School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan , Shandong , China.,b Institute of MateriaMedica , Shandong Academy of Medical Sciences , Jinan , Shandong , China.,c Key Laboratory for Biotech-Drugs Ministry of Health , Jinan , Shandong , China.,d Key Laboratory for Rare & Uncommon Diseases of Shandong Province , Jinan , Shandong , China
| | - Xiaojing Wang
- a School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan , Shandong , China.,b Institute of MateriaMedica , Shandong Academy of Medical Sciences , Jinan , Shandong , China.,c Key Laboratory for Biotech-Drugs Ministry of Health , Jinan , Shandong , China.,d Key Laboratory for Rare & Uncommon Diseases of Shandong Province , Jinan , Shandong , China
| |
Collapse
|
23
|
Lee J, Ko KM, Kim SG. Ni(ClO4
)2
-Catalyzed Friedel-Crafts Reaction of Coumarin-Fused Donor-Acceptor Cyclopropanes with Indoles: Stereoselective Synthesis of trans
-3,4-Disubstituted-3,4-dihydrocoumarins. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800669] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jusung Lee
- Department of Chemistry; Kyonggi University; 154-42 Gwanggyosan-ro,Yeongtong-gu, Suwon 16227 Republic of Korea
| | - Kwang Min Ko
- Department of Chemistry; Kyonggi University; 154-42 Gwanggyosan-ro,Yeongtong-gu, Suwon 16227 Republic of Korea
| | - Sung-Gon Kim
- Department of Chemistry; Kyonggi University; 154-42 Gwanggyosan-ro,Yeongtong-gu, Suwon 16227 Republic of Korea
| |
Collapse
|
24
|
James J, Akula R, Guiry PJ. Pd-Catalyzed Decarboxylative Asymmetric Protonation of Sterically Hindered α-Aryl Lactones and Dihydrocoumarins. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800724] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jinju James
- Centre for Synthesis and Chemical Biology, School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
| | - Ramulu Akula
- Synthesis & Solid State Pharmaceutical Centre (SSPC), School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology, School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
- Synthesis & Solid State Pharmaceutical Centre (SSPC), School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
| |
Collapse
|
25
|
Saldanha GB, Saldanha GB, de Sousa MRSC, Oliveira GLDS, da Silva APDSC, David JM, David JP. Absence of toxicity in Swiss mice following treatment with 7-acetoxy-4-aryl-3,4-dihydrocoumarin: Acute and repeated-dose toxicity study. Regul Toxicol Pharmacol 2018; 94:75-82. [DOI: 10.1016/j.yrtph.2018.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/29/2017] [Accepted: 01/04/2018] [Indexed: 10/18/2022]
|
26
|
Cui L, Lv D, Wang Y, Fan Z, Li Z, Zhou Z. Asymmetric Formal [4 + 2] Annulation of o-Quinone Methides with β-Keto Acylpyrazoles: A General Approach to Optically Active trans-3,4-Dihydrocoumarins. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00234] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Liying Cui
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Dan Lv
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Youming Wang
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Zhijin Fan
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Zhengming Li
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Zhenghong Zhou
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| |
Collapse
|
27
|
Xiao M, Xu D, Liang W, Wu W, Chan ASC, Zhao J. Organocatalytic Enantioselective Friedel-Crafts Alkylation/Lactonization Reaction of Hydroxyindoles with Methyleneoxindoles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701089] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mengjie Xiao
- Guangzhou Institutes of Biomedicine and Health; Chinese Academy of Sciences; Guangzhou 510530 Peoples Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Dengfeng Xu
- Guangzhou Institutes of Biomedicine and Health; Chinese Academy of Sciences; Guangzhou 510530 Peoples Republic of China
| | - Weihong Liang
- Guangzhou Institutes of Biomedicine and Health; Chinese Academy of Sciences; Guangzhou 510530 Peoples Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Wenyu Wu
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Albert S. C. Chan
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Junling Zhao
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| |
Collapse
|
28
|
Li Y, Liu T, Liang C. Mechanisms and stereoselectivities of NHC-catalyzed [4 + 2] cycloaddition reaction between phenylacetic acid and o-quinone methide: A computational investigation. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
29
|
Chen X, Song R, Liu Y, Ooi CY, Jin Z, Zhu T, Wang H, Hao L, Chi YR. Carbene and Acid Cooperative Catalytic Reactions of Aldehydes and o-Hydroxybenzhydryl Amines for Highly Enantioselective Access to Dihydrocoumarins. Org Lett 2017; 19:5892-5895. [DOI: 10.1021/acs.orglett.7b02883] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xingkuan Chen
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Runjiang Song
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Yingguo Liu
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Chong Yih Ooi
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Zhichao Jin
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- Laboratory
Breeding Base of Green Pesticide and Agricultural Bioengineering,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, People’s Republic of China
| | - Tingshun Zhu
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Hongling Wang
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- Laboratory
Breeding Base of Green Pesticide and Agricultural Bioengineering,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, People’s Republic of China
| | - Lin Hao
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Yonggui Robin Chi
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- Laboratory
Breeding Base of Green Pesticide and Agricultural Bioengineering,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, People’s Republic of China
| |
Collapse
|
30
|
|
31
|
Jin JH, Li XY, Luo X, Fossey JS, Deng WP. Asymmetric Synthesis of cis-3,4-Dihydrocoumarins via [4 + 2] Cycloadditions Catalyzed by Amidine Derivatives. J Org Chem 2017; 82:5424-5432. [PMID: 28441490 DOI: 10.1021/acs.joc.7b00367] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly efficient chiral amidine derivative-catalyzed tandem Michael addition/lactonization of carboxylic acids and o-quinone methides (o-QMs) has been developed that enables the asymmetric synthesis of cis-3,4-dihydrocoumarins bearing contiguous tertiary stereogenic centers in high yields with excellent stereoselectivities.
Collapse
Affiliation(s)
- Jing-Hai Jin
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
| | - Xiang-Yu Li
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyan Luo
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
| | - John S Fossey
- School of Chemistry, University of Birmingham , Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
| |
Collapse
|
32
|
Organocatalytic Friedel–Crafts Alkylation/Lactonization Reaction of Naphthols with 3‐Trifluoroethylidene Oxindoles: The Asymmetric Synthesis of Dihydrocoumarins. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609390] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
33
|
Zhao YL, Lou QX, Wang LS, Hu WH, Zhao JL. Organocatalytic Friedel-Crafts Alkylation/Lactonization Reaction of Naphthols with 3-Trifluoroethylidene Oxindoles: The Asymmetric Synthesis of Dihydrocoumarins. Angew Chem Int Ed Engl 2016; 56:338-342. [PMID: 27900837 DOI: 10.1002/anie.201609390] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 11/07/2016] [Indexed: 11/11/2022]
Abstract
Naphthols and 3-trifluoroethylidene oxindoles were found to undergo an asymmetric Friedel-Crafts alkylation/lactonization reaction, catalyzed by only 2.5 mol % of a quinine-derived squaramide catalyst, to afford the corresponding α-aryl-β-trifluoromethyl dihydrocoumarin derivatives in high yields (up to 99 %) with excellent enantio- and diastereoselectivities (up to 98 % ee, >20:1 d.r.). Importantly, the lactonization proceeded by nucleophilic attack of the naphthol hydroxy group at the amide motif of the oxindoles under mild reaction conditions. This protocol represents a new strategy for the formation of dihydrocoumarins by an efficient intramolecular amide C-N bond-cleavage and esterification process.
Collapse
Affiliation(s)
- Yun-Long Zhao
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, 510530, China
| | - Qin-Xin Lou
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, 510530, China
| | - Long-Sheng Wang
- Institute of POM-based Materials, School of Material and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Wen-Hui Hu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, 510530, China
| | - Jun-Ling Zhao
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, 510530, China
| |
Collapse
|
34
|
Leitis Z, Lūsis V. Conjugate addition of aryl nucleophiles to α,β-unsaturated cinnamic acid derivatives containing Evans type chiral auxiliaries. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
35
|
Quantitative Structure Activity Relationship Models for the Antioxidant Activity of Polysaccharides. PLoS One 2016; 11:e0163536. [PMID: 27685320 PMCID: PMC5042491 DOI: 10.1371/journal.pone.0163536] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 09/10/2016] [Indexed: 01/06/2023] Open
Abstract
In this study, quantitative structure activity relationship (QSAR) models for the antioxidant activity of polysaccharides were developed with 50% effective concentration (EC50) as the dependent variable. To establish optimum QSAR models, multiple linear regressions (MLR), support vector machines (SVM) and artificial neural networks (ANN) were used, and 11 molecular descriptors were selected. The optimum QSAR model for predicting EC50 of DPPH-scavenging activity consisted of four major descriptors. MLR model gave EC50 = 0.033Ara-0.041GalA-0.03GlcA-0.025PC+0.484, and MLR fitted the training set with R = 0.807. ANN model gave the improvement of training set (R = 0.96, RMSE = 0.018) and test set (R = 0.933, RMSE = 0.055) which indicated that it was more accurately than SVM and MLR models for predicting the DPPH-scavenging activity of polysaccharides. 67 compounds were used for predicting EC50 of the hydroxyl radicals scavenging activity of polysaccharides. MLR model gave EC50 = 0.12PC+0.083Fuc+0.013Rha-0.02UA+0.372. A comparison of results from models indicated that ANN model (R = 0.944, RMSE = 0.119) was also the best one for predicting the hydroxyl radicals scavenging activity of polysaccharides. MLR and ANN models showed that Ara and GalA appeared critical in determining EC50 of DPPH-scavenging activity, and Fuc, Rha, uronic acid and protein content had a great effect on the hydroxyl radicals scavenging activity of polysaccharides. The antioxidant activity of polysaccharide usually was high in MW range of 4000-100000, and the antioxidant activity could be affected simultaneously by other polysaccharide properties, such as uronic acid and Ara.
Collapse
|
36
|
Wang Y, Pan J, Jiang R, Wang Y, Zhou Z. Stereocontrolled Construction of 3,4‐Dihydrocoumarin Scaffolds with a Quaternary Amino Acid Moiety
via
Chiral Squaramide‐Catalyzed Cascade Michael Addition/Lactonization Reaction. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500862] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuehua Wang
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Jianping Pan
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Rongrong Jiang
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Youming Wang
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Zhenghong Zhou
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| |
Collapse
|