1
|
Jansen-van Vuuren RD, Liu S, Miah MAJ, Cerkovnik J, Košmrlj J, Snieckus V. The Versatile and Strategic O-Carbamate Directed Metalation Group in the Synthesis of Aromatic Molecules: An Update. Chem Rev 2024; 124:7731-7828. [PMID: 38864673 PMCID: PMC11212060 DOI: 10.1021/acs.chemrev.3c00923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 06/13/2024]
Abstract
The aryl O-carbamate (ArOAm) group is among the strongest of the directed metalation groups (DMGs) in directed ortho metalation (DoM) chemistry, especially in the form Ar-OCONEt2. Since the last comprehensive review of metalation chemistry involving ArOAms (published more than 30 years ago), the field has expanded significantly. For example, it now encompasses new substrates, solvent systems, and metalating agents, while conditions have been developed enabling metalation of ArOAm to be conducted in a green and sustainable manner. The ArOAm group has also proven to be effective in the anionic ortho-Fries (AoF) rearrangement, Directed remote metalation (DreM), iterative DoM sequences, and DoM-halogen dance (HalD) synthetic strategies and has been transformed into a diverse range of functionalities and coupled with various groups through a range of cross-coupling (CC) strategies. Of ultimate value, the ArOAm group has demonstrated utility in the synthesis of a diverse range of bioactive and polycyclic aromatic compounds for various applications.
Collapse
Affiliation(s)
- Ross D. Jansen-van Vuuren
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Susana Liu
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
| | - M. A. Jalil Miah
- Department
of Chemistry, Rajshahi University, Rajshahi-6205, Bangladesh
| | - Janez Cerkovnik
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Janez Košmrlj
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Victor Snieckus
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
| |
Collapse
|
2
|
Lőrincz EB, Tóth G, Spolárics J, Herczeg M, Hodek J, Zupkó I, Minorics R, Ádám D, Oláh A, Zouboulis CC, Weber J, Nagy L, Ostorházi E, Bácskay I, Borbás A, Herczegh P, Bereczki I. Mannich-type modifications of (-)-cannabidiol and (-)-cannabigerol leading to new, bioactive derivatives. Sci Rep 2023; 13:19618. [PMID: 37949940 PMCID: PMC10638401 DOI: 10.1038/s41598-023-45565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023] Open
Abstract
(-)-Cannabidiol (CBD) and (-)-cannabigerol (CBG) are two major non-psychotropic phytocannabinoids that have many beneficial biological properties. However, due to their low water solubility and prominent first-pass metabolism, their oral bioavailability is moderate, which is unfavorable for medicinal use. Therefore, there is a great need for appropriate chemical modifications to improve their physicochemical and biological properties. In this study, Mannich-type reaction was used for the synthetic modification of CBD and CBG for the first time, and thus fifteen new cannabinoid derivatives containing one or two tertiary amino groups were prepared. Thereafter the antiviral, antiproliferative and antibacterial properties of the derivatives and their effects on certain skin cells were investigated. Some modified CBD derivatives showed remarkable antiviral activity against SARS-CoV-2 without cytotoxic effect, while synthetic modifications on CBG resulted in a significant increase in antiproliferative activity in some cases compared to the parent compound.
Collapse
Affiliation(s)
- Eszter Boglárka Lőrincz
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, 4032, Hungary
| | - Gergely Tóth
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Júlia Spolárics
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Mihály Herczeg
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Jan Hodek
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science, Prague, 166 10, Czech Republic
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, 6720, Hungary
| | - Renáta Minorics
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, 6720, Hungary
| | - Dorottya Ádám
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- Doctoral School of Molecular Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Attila Oláh
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Christos C Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology, Staedtisches Klinikum Dessau, Brandenburg Medical School Theodor Fontane and Faculty of Health Sciences Brandenburg, 06847, Dessau, Germany
| | - Jan Weber
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science, Prague, 166 10, Czech Republic
| | - Lajos Nagy
- Department of Applied Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Eszter Ostorházi
- Department of Medical Microbiology, Semmelweis University, Budapest, 1089, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, University of Debrecen, Debrecen, 4032, Hungary
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary.
- National Laboratory of Virology, Szentágothai Research Centre, Pécs, 7624, Hungary.
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Debrecen, 4032, Hungary.
| | - Pál Herczegh
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
- HUN-REN-UD Pharmamodul Research Group, University of Debrecen, Debrecen, 4032, Hungary
| | - Ilona Bereczki
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary.
- National Laboratory of Virology, Szentágothai Research Centre, Pécs, 7624, Hungary.
- HUN-REN-UD Pharmamodul Research Group, University of Debrecen, Debrecen, 4032, Hungary.
| |
Collapse
|
3
|
Szőke K, Kajtár R, Gyöngyösi A, Czompa A, Fésüs A, Lőrincz EB, Petróczi FD, Herczegh P, Bak I, Borbás A, Bereczki I, Lekli I. Pharmacological Evaluation of Newly Synthesized Cannabidiol Derivates on H9c2 Cells. Antioxidants (Basel) 2023; 12:1714. [PMID: 37760017 PMCID: PMC10525859 DOI: 10.3390/antiox12091714] [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: 08/01/2023] [Revised: 08/25/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Cannabidiol (CBD) is a nonpsychoactive phytocannabinoid that can be found in Cannabis sativa and possesses numerous pharmacological effects. Due to these promising effects, CBD can be used in a wide variety of diseases, for instance cardiovascular diseases. However, CBD, like tetrahydrocannabinol (THC), has low bioavailability, poor water solubility, and a variable pharmacokinetic profile, which hinders its therapeutic use. Chemical derivatization of CBD offers us potential ways to overcome these issues. We prepared three new CBD derivatives substituted on the aromatic ring by Mannich-type reactions, which have not been described so far for the modification of cannabinoids, and studied the protective effect they have on cardiomyocytes exposed to oxidative stress and hypoxia/reoxygenation (H/R) compared to the parent compound. An MTT assay was performed to determine the viability of rat cardiomyocytes treated with test compounds. Trypan blue exclusion and lactate dehydrogenase (LDH) release assays were carried out to study the effect of the new compounds in cells exposed to H2O2 or hypoxia/reoxygenation (H/R). Direct antioxidant activity was evaluated by a total antioxidant capacity (TAC) assay. To study antioxidant protein levels, HO-1, SOD, catalase, and Western blot analysis were carried out. pIC50 (the negative log of the IC50) values were as follows: CBD1: 4.113, CBD2: 3.995, CBD3: 4.190, and CBD: 4.671. The newly synthesized CBD derivatives prevented cell death induced by H/R, especially CBD2. CBD has the largest direct antioxidant activity. The levels of antioxidant proteins were increased differently after pretreatment with synthetic CBD derivatives and CBD. Taken together, our newly synthesized CBD derivatives are able to decrease cytotoxicity during oxidative stress and H/R. The compounds have similar or better effects than CBD on H9c2 cells.
Collapse
Affiliation(s)
- Kitti Szőke
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
- Institute of Healthcare Industry, University of Debrecen, 4032 Debrecen, Hungary
| | - Richárd Kajtár
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Alexandra Gyöngyösi
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Attila Czompa
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Adina Fésüs
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
- Institute of Healthcare Industry, University of Debrecen, 4032 Debrecen, Hungary
| | - Eszter Boglárka Lőrincz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Ferenc Dániel Petróczi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Pál Herczegh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
| | - István Bak
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
| | - Ilona Bereczki
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
- National Laboratory of Virology, Szentágothai Research Centre, 7624 Pécs, Hungary
- ELKH-DE Pharmamodul Research Team, University of Debrecen, 4032 Debrecen, Hungary
| | - István Lekli
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| |
Collapse
|
4
|
Sustainable Chitosan/Polybenzoxazine Films: Synergistically Improved Thermal, Mechanical, and Antimicrobial Properties. Polymers (Basel) 2023; 15:polym15041021. [PMID: 36850303 PMCID: PMC9959427 DOI: 10.3390/polym15041021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Polybenzoxazines (Pbzs) are considered as an advanced class of thermosetting phenolic resins as they overcome the shortcomings associated with novolac and resole type phenolic resins. Several advantages of these materials include curing without the use of catalysts, release of non-toxic by-products during curing, molecular design flexibility, near-zero shrinkage of the cured materials, low water absorption and so on. In spite of all these advantages, the brittleness of Pbz is a knotty problem that could be solved by blending with other polymers. Chitosan (Ch), has been extensively investigated in this context, but its thermal and mechanical properties rule out its practical applications. The purpose of this work is to fabricate an entirely bio-based Pbz films by blending chitosan with benzoxazine (Bzo), which is synthesized from curcumin and furfuryl amine (curcumin-furfurylamine-based Bzo, C-fu), by making use of a benign Schiff base chemistry. FT-IR and 1H-NMR spectroscopy were used to confirm the structure of C-fu. The impact of chitosan on benzoxazine polymerization was examined using FT-IR and DSC analyses. Further evidence for synergistic interactions was provided by DSC, SEM, TGA, and tensile testing. By incorporating C-fu into Ch, Ch-grafted-poly(C-fu) films were obtained with enhanced chemical resistance and tensile strength. The bio-based polymer films produced inhibited the growth of Staphylococcus aureus and Escherichia coli, by reversible labile linkages, expanding Ch galleries, and releasing phenolic species, which was 125 times stronger than bare Ch. In addition, synthesized polybenzoxazine films [Ch/Poly(C-fu)] showed significant dose-dependent antibiofilm activity against S. aureus and E. coli as determined by confirmed by confocal laser scanning microscopy (CLSM). This study suggests that bio-based Ch-graft-polymer material provide improved anti-bacterial property and characteristics that may be considered as a possibility in the near future for wound healing and implant applications.
Collapse
|
5
|
Mohamed MG, Li CJ, Khan MAR, Liaw CC, Zhang K, Kuo SW. Formaldehyde-Free Synthesis of Fully Bio-Based Multifunctional Bisbenzoxazine Resins from Natural Renewable Starting Materials. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00417] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mohamed Gamal Mohamed
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Chemistry Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Chia-Jung Li
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Mo Aqib Raza Khan
- Department of Marine Biotechnology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chih-Chuang Liaw
- Department of Marine Biotechnology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Kan Zhang
- Research School of Polymeric Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shiao-Wei Kuo
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
6
|
Vorobyev SV, Primerova OV, Bylikin SY, Koshelev VN. Lactamomethylation of alkylphenols: Synthesis and quantum-chemical study of the reaction pathway. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
7
|
Chernowsky CP, Chmiel AF, Wickens ZK. Electrochemical Activation of Diverse Conventional Photoredox Catalysts Induces Potent Photoreductant Activity*. Angew Chem Int Ed Engl 2021; 60:21418-21425. [PMID: 34288312 PMCID: PMC8440429 DOI: 10.1002/anie.202107169] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/07/2021] [Indexed: 12/15/2022]
Abstract
Herein, we disclose that electrochemical stimulation induces new photocatalytic activity from a range of structurally diverse conventional photocatalysts. These studies uncover a new electron-primed photoredox catalyst capable of promoting the reductive cleavage of strong C(sp2 )-N and C(sp2 )-O bonds. We illustrate several examples of the synthetic utility of these deeply reducing but otherwise safe and mild catalytic conditions. Finally, we employ electrochemical current measurements to perform a reaction progress kinetic analysis. This technique reveals that the improved activity of this new system is a consequence of an enhanced catalyst stability profile.
Collapse
Affiliation(s)
- Colleen P. Chernowsky
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Ave, Madison, WI 53706
| | - Alyah F. Chmiel
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Ave, Madison, WI 53706
| | - Zachary K. Wickens
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Ave, Madison, WI 53706
| |
Collapse
|
8
|
Chernowsky CP, Chmiel AF, Wickens ZK. Electrochemical Activation of Diverse Conventional Photoredox Catalysts Induces Potent Photoreductant Activity**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Colleen P. Chernowsky
- Department of Chemistry University of Wisconsin-Madison 1101 University Ave Madison WI 53706 USA
| | - Alyah F. Chmiel
- Department of Chemistry University of Wisconsin-Madison 1101 University Ave Madison WI 53706 USA
| | - Zachary K. Wickens
- Department of Chemistry University of Wisconsin-Madison 1101 University Ave Madison WI 53706 USA
| |
Collapse
|
9
|
Nagy S, Szigetvári Á, Ilkei V, Krámos B, Béni Z, Szántay C, Hazai L. Synthesis of aminal-type Lilium candidum alkaloids and lilaline; determination of their relative configuration by the concerted use of NMR spectroscopy and DFT conformational analysis. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131827] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
10
|
Rahmatpour A. Regioselective condensation of hydroxyaromatic compounds with 2,5-dimethoxytetrahydrofuran: facile one-pot synthesis of new substituted diaryl-fused 2,8-dioxabicyclo[3.3.2]nonanes comprising central ketal moieties. NEW J CHEM 2020. [DOI: 10.1039/c9nj06232g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Regioselective synthesis of a series of novel diaryl- and naphthyl-fused 2,8-dioxabicyclo[3.3.2]nonanes was accomplished by a one-pot reaction of p-substituted phenols and 2-naphthol with 2,5-dimethoxytetrahydrofuran.
Collapse
Affiliation(s)
- Ali Rahmatpour
- Polymer Chemistry Research Laboratory
- Faculty of Chemistry
- Shahid Beheshti University
- Tehran
- Iran
| |
Collapse
|
11
|
Lyu Y, Ishida H. Natural-sourced benzoxazine resins, homopolymers, blends and composites: A review of their synthesis, manufacturing and applications. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101168] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
12
|
Chalitangkoon J, Monvisade P. Dual pH/thermal-dependent coloring polymeric dye through Mannich reaction of chitosan: Synthesis and characterization. Carbohydr Polym 2019; 223:115049. [PMID: 31426948 DOI: 10.1016/j.carbpol.2019.115049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/25/2019] [Accepted: 07/01/2019] [Indexed: 11/25/2022]
Abstract
A novel polymeric dye was synthesized by one-pot Mannich reaction of chitosan (CS) and phenolphthalein (PHP). The grafting onto side chain of CS derivatives was confirmed by UV-vis, FT-IR, 1H NMR techniques. The degree of substitution (DS) calculated by 1H NMR and elemental analysis was revealed to increase with increasing mole ratio of formaldehyde and PHP. XRD analysis showed that the grafting through Mannich reaction was caused to amorphous structure in the derivatives. Covalent grafting of PHP onto CS made the grafted products showing pink color in basic conditions without leaching of dye and color fading after several weeks. Moreover, the derivatives dissolved in LiOH/urea systems could showed darker pink after heating. The results suggested that the novel CS derivatives with dual pH/thermal-dependent coloring property could potentially be prepared as pH/thermal-responsive biomaterial in a wide range of applications.
Collapse
Affiliation(s)
- Jongjit Chalitangkoon
- Polymer Synthesis and Functional Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand
| | - Pathavuth Monvisade
- Polymer Synthesis and Functional Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand.
| |
Collapse
|
13
|
Benzoxazine enhanced amino cellulose-based composite films: Preparation, proposed mechanism, and improved performance. Carbohydr Polym 2019; 222:115008. [DOI: 10.1016/j.carbpol.2019.115008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/29/2019] [Accepted: 06/18/2019] [Indexed: 11/24/2022]
|
14
|
Naresh G, Lakkaniga NR, Kharbanda A, Yan W, Frett B, Li H. Use of Imidazo[1,2‐
a
]pyridine as a Carbonyl Surrogate in a Mannich‐Like, Catalyst Free, One‐Pot Reaction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801430] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gunaganti Naresh
- Department of Pharmaceutical Sciences College of Pharmacy University of Arkansas for Medical Sciences 4301 W Markham St. 72205 Little Rock Arkansas USA
| | - Naga Rajiv Lakkaniga
- Department of Pharmaceutical Sciences College of Pharmacy University of Arkansas for Medical Sciences 4301 W Markham St. 72205 Little Rock Arkansas USA
| | - Anupreet Kharbanda
- Department of Pharmaceutical Sciences College of Pharmacy University of Arkansas for Medical Sciences 4301 W Markham St. 72205 Little Rock Arkansas USA
| | - Wei Yan
- Department of Pharmaceutical Sciences College of Pharmacy University of Arkansas for Medical Sciences 4301 W Markham St. 72205 Little Rock Arkansas USA
| | - Brendan Frett
- Department of Pharmaceutical Sciences College of Pharmacy University of Arkansas for Medical Sciences 4301 W Markham St. 72205 Little Rock Arkansas USA
| | - Hong‐yu Li
- Department of Pharmaceutical Sciences College of Pharmacy University of Arkansas for Medical Sciences 4301 W Markham St. 72205 Little Rock Arkansas USA
| |
Collapse
|
15
|
Wu WH, Duan J, Wei T, Tu HY, Zhang AD. The role of β-cyclodextrin in mediating regioselective dimethylaminomethylation of phenol. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
The modified-Mannich reaction: Conversion of arylboronic acids and subsequent coupling with paraformaldehyde and amines toward the one-pot synthesis of Mannich bases and benzoxazines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Ilkei V, Spaits A, Prechl A, Müller J, Könczöl Á, Lévai S, Riethmüller E, Szigetvári Á, Béni Z, Dékány M, Martins A, Hunyadi A, Antus S, Szántay C, Balogh GT, Kalaus G, Bölcskei H, Hazai L. C8-selective biomimetic transformation of 5,7-dihydroxylated flavonoids by an acid-catalysed phenolic Mannich reaction: Synthesis of flavonoid alkaloids with quercetin and (–)-epicatechin skeletons. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.01.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
18
|
Bikas R, Emami M, Ślepokura K, Noshiranzadeh N. Preparing Mn(iii) salen-type Schiff base complexes using 1,3-oxazines obtained by Mannich condensation: towards removing ortho-hydroxyaldehydes. NEW J CHEM 2017. [DOI: 10.1039/c7nj01562c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of Mn(iii)-salen type Schiff base complexes from 1,3-oxazines obtained from Mannich condensation. This method eliminates the restrictions on the use ofortho-hydroxyaldehydes.
Collapse
Affiliation(s)
- Rahman Bikas
- Department of Chemistry
- Faculty of Sciences
- University of Zanjan 45371-38791
- Zanjan
- Iran
| | - Marzieh Emami
- Department of Chemistry
- Faculty of Sciences
- University of Zanjan 45371-38791
- Zanjan
- Iran
| | - Katarzyna Ślepokura
- Faculty of Chemistry
- University of Wroclaw
- Joliot-Curie 14
- Wroclaw 50-383
- Poland
| | - Nader Noshiranzadeh
- Department of Chemistry
- Faculty of Sciences
- University of Zanjan 45371-38791
- Zanjan
- Iran
| |
Collapse
|
19
|
Aqueous Co(II) adsorption using 8-hydroxyquinoline anchored γ-Fe2O3@chitosan with Co(II) as imprinted ions. Int J Biol Macromol 2016; 87:375-84. [DOI: 10.1016/j.ijbiomac.2016.02.077] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/22/2016] [Accepted: 02/29/2016] [Indexed: 11/20/2022]
|
20
|
Frasinyuk MS, Mrug GP, Bondarenko SP, Sviripa VM, Zhang W, Cai X, Fiandalo MV, Mohler JL, Liu C, Watt DS. Application of Mannich bases to the synthesis of hydroxymethylated isoflavonoids as potential antineoplastic agents. Org Biomol Chem 2015; 13:11292-301. [PMID: 26416505 DOI: 10.1039/c5ob01828e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The regiospecific Mannich aminomethylation of 7-hydroxyisoflavonoids using bis(N,N-dimethylamino)methane afforded C-8 substituted N,N-dimethylaminomethyl adducts, and the regioselective aminomethylation of 5-hydroxy-7-methoxyisoflavonoids afforded predominantly the C-6 substituted N,N-dimethylaminomethyl adducts. Acetylation of these C-6 or C-8 Mannich bases with potassium acetate in acetic anhydride provided access to the corresponding acetoxymethyl derivatives that were subsequently converted to hydroxymethyl- and methoxymethyl-substituted 5-hydroxy- or 7-hydroxyisoflavonoids related to naturally occurring flavonoids. The C-8 acetoxymethyl, hydroxymethyl or methoxymethyl-substituted isoflavonoids possessed promising inhibitory potency in the low micromolar range in a prostate cancer PC-3 cell proliferation assay.
Collapse
Affiliation(s)
- Mykhaylo S Frasinyuk
- Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, Kyiv 02094, Ukraine
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Budnyak T, Tertykh V, Yanovska E, Kołodyńska D, Bartyzel A. Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction. ADSORPT SCI TECHNOL 2015. [DOI: 10.1260/0263-6174.33.6-8.645] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- T.M. Budnyak
- Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, 17 General Naumov Street, 03164 Kyiv, Ukraine
| | - V.A. Tertykh
- Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, 17 General Naumov Street, 03164 Kyiv, Ukraine
| | - E.S. Yanovska
- Kyiv National Taras Shevchenko University, 64 Volodymyrska Street, 01033 Kyiv, Ukraine
| | - D. Kołodyńska
- Maria Curie-Skłodowska University, 2 Maria Curie Sklodowska Sq., 20-031 Lublin, Poland
| | - A. Bartyzel
- Maria Curie-Skłodowska University, 2 Maria Curie Sklodowska Sq., 20-031 Lublin, Poland
| |
Collapse
|
22
|
|
23
|
Xu G, Shi T, Li M, Yu F, Chen Y. Difference between the effects of modification graphene oxide with two biomass molecules: Chitosan and cardanol. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-014-1906-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
24
|
Zhang L, Zhu Y, Li D, Wang M, Chen H, Wu J. Preparation and characterization of fully renewable polybenzoxazines from monomers containing multi-oxazine rings. RSC Adv 2015. [DOI: 10.1039/c5ra17164d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Fully renewable polybenzoxazines prepared from monomers with multi-oxazine rings shows reversible pH responsiveness, good thermal and mechanical performance.
Collapse
Affiliation(s)
- Lei Zhang
- Department of Mechanical and Aerospace Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Yejun Zhu
- Department of Mechanical and Aerospace Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Dan Li
- Center for Engineering Materials and Reliability
- Fok Ying Tung Research Institute
- The Hong Kong University of Science and Technology
- China
| | - Min Wang
- Center for Engineering Materials and Reliability
- Fok Ying Tung Research Institute
- The Hong Kong University of Science and Technology
- China
| | - Haibin Chen
- Department of Mechanical and Aerospace Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
- Center for Engineering Materials and Reliability
| | - Jingshen Wu
- Department of Mechanical and Aerospace Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
- Center for Engineering Materials and Reliability
| |
Collapse
|
25
|
Stereoselective preparation of chiral compounds in Mannich-type reactions of a bicyclic imine and phenols or indole. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
26
|
Hussain H, Al-Harrasi A, Al-Rawahi A, Green IR, Gibbons S. Fruitful decade for antileishmanial compounds from 2002 to late 2011. Chem Rev 2014; 114:10369-428. [PMID: 25253511 DOI: 10.1021/cr400552x] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hidayat Hussain
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa , P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | | | | | | | | |
Collapse
|
27
|
Xia L, Cai H, Lee YR. Catalyst-controlled regio- and stereoselective synthesis of diverse 12H-6,12-methanodibenzo[d,g][1,3]dioxocines. Org Biomol Chem 2014; 12:4386-96. [DOI: 10.1039/c4ob00691g] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Regio- and stereoselective synthesis of 12H-6,12-methanodibenzo[d,g][1,3]dioxocines has been accomplished by the EDDA and PTSA-catalyzed cascade reactions of resorcinols and 2-hydroxychalcones.
Collapse
Affiliation(s)
- Likai Xia
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749, Republic of Korea
| | - Hongyun Cai
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749, Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749, Republic of Korea
| |
Collapse
|
28
|
Alhwaige AA, Agag T, Ishida H, Qutubuddin S. Biobased Chitosan/Polybenzoxazine Cross-Linked Films: Preparation in Aqueous Media and Synergistic Improvements in Thermal and Mechanical Properties. Biomacromolecules 2013; 14:1806-15. [DOI: 10.1021/bm4002014] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Almahdi A. Alhwaige
- Department of Chemical
Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7217, United States
| | - Tarek Agag
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202,
United States
| | - Hatsuo Ishida
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202,
United States
| | - Syed Qutubuddin
- Department of Chemical
Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7217, United States
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202,
United States
| |
Collapse
|
29
|
Chitosan conjugates with biologically active compounds: design strategies, properties, and targeted drug delivery. Russ Chem Bull 2013. [DOI: 10.1007/s11172-012-0109-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
30
|
Gemma S, Camodeca C, Brindisi M, Brogi S, Kukreja G, Kunjir S, Gabellieri E, Lucantoni L, Habluetzel A, Taramelli D, Basilico N, Gualdani R, Tadini-Buoninsegni F, Bartolommei G, Moncelli MR, Martin RE, Summers RL, Lamponi S, Savini L, Fiorini I, Valoti M, Novellino E, Campiani G, Butini S. Mimicking the Intramolecular Hydrogen Bond: Synthesis, Biological Evaluation, and Molecular Modeling of Benzoxazines and Quinazolines as Potential Antimalarial Agents. J Med Chem 2012; 55:10387-404. [DOI: 10.1021/jm300831b] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sandra Gemma
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Caterina Camodeca
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Margherita Brindisi
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Simone Brogi
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Gagan Kukreja
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Sanil Kunjir
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Emanuele Gabellieri
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Leonardo Lucantoni
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
- Scuola di Scienze del Farmaco
e dei Prodotti della Salute, Università di Camerino, 62032
Camerino (MC), Italy
| | - Annette Habluetzel
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
- Scuola di Scienze del Farmaco
e dei Prodotti della Salute, Università di Camerino, 62032
Camerino (MC), Italy
| | - Donatella Taramelli
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Nicoletta Basilico
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Roberta Gualdani
- Department of Chemistry “Ugo
Schiff”, University of Florence, 50019 Sesto Fiorentino, Italy
| | | | - Gianluca Bartolommei
- Department of Chemistry “Ugo
Schiff”, University of Florence, 50019 Sesto Fiorentino, Italy
| | - Maria Rosa Moncelli
- Department of Chemistry “Ugo
Schiff”, University of Florence, 50019 Sesto Fiorentino, Italy
| | - Rowena E. Martin
- Research School of Biology,
The Australian National University, Canberra ACT 0200, Australia
| | - Robert L. Summers
- Research School of Biology,
The Australian National University, Canberra ACT 0200, Australia
| | - Stefania Lamponi
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Luisa Savini
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Isabella Fiorini
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Massimo Valoti
- Dipartimento di Neuroscienze,
University of Siena, via A. Moro 2, Siena, Italy
| | - Ettore Novellino
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- Dipartimento di Chimica Farmaceutica
e Tossicologica, University of Naples Federico II, Via D. Montesano
49, 80131 Naples, Italy
| | - Giuseppe Campiani
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| | - Stefania Butini
- European Research Centre for
Drug Discovery and Development (NatSynDrugs), University of Siena,
Via Aldo Moro, 53100 Siena, Italy
- CIRM Centro Interuniversitario
di Ricerche sulla Malaria, Università di Torino, Torino, Italy
| |
Collapse
|
31
|
Morimoto M, Nakajima T, Ishikura M, Shigemasa Y, Ifuku S, Saimoto H. Synthesis of organosoluble chitosan derivatives with polyphenolic side chains. Carbohydr Polym 2012; 90:1259-64. [PMID: 22939339 DOI: 10.1016/j.carbpol.2012.06.067] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 06/12/2012] [Accepted: 06/22/2012] [Indexed: 11/19/2022]
Abstract
A one-pot synthesis was used to produce chitosan derivatives with polyphenolic side chains via a regioselective phenolic coupling reaction. Under Mannich reaction conditions, treatment of chitosan with formaldehyde and methyl 2,4-dihydroxybenzoate gave N-(2,6-dihydroxy-3-methoxycarbonylphenyl)methylated chitosan in good yield (87%). Formation of a CC bond occurred regioselectively at the C(3) position of methyl 2,4-dihydroxybenzoate. Chitosan derivatives having various phenolic compounds as a side chain were easily synthesized in a similar manner. The chitosan derivatives showed good biodegradability and improved their solubility in methanol (9.8mg mL(-1)) and 2-methoxyethanol (> 10mg mL(-1)). The UV protection provided by the derivatives with phenolic benzophenone side chain was evaluated using UV spectra of polyethylene terephthalate and poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) films coated with the derivatives and the derivatives absorbed effectively in the UV-A region (<60%). Self-aggregation of the chitosan derivatives with the phenolic side chain was observed by using a fluorescent probe in aqueous solution.
Collapse
Affiliation(s)
- Minoru Morimoto
- Research Center for Bioscience and Technology, Tottori University, Koyama, Tottori 680-8550, Japan
| | | | | | | | | | | |
Collapse
|
32
|
Agag T, Vietmeier K, Chernykh A, Ishida H. Side-chain type benzoxazine-functional cellulose via click chemistry. J Appl Polym Sci 2012. [DOI: 10.1002/app.36365] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
33
|
Torlopov MA, Chukicheva IY, Kuchin AV. Synthesis of inulin and starch derivatives with a 2,6-diisobornyl-4-methylphenol (dibornolTM) fragment. Chem Nat Compd 2012. [DOI: 10.1007/s10600-012-0090-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
34
|
Wang D, Hou L, Wu L, Yu X. Synthesis and Anti-tumor Activities of Novel Oxazinyl Isoflavonoids. Chem Pharm Bull (Tokyo) 2012; 60:513-20. [DOI: 10.1248/cpb.60.513] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Dun Wang
- College of Pharmacential Engineering, Shenyang Pharmaceutical University
| | - Like Hou
- College of Pharmacential Engineering, Shenyang Pharmaceutical University
| | - Lirong Wu
- College of Pharmacential Engineering, Shenyang Pharmaceutical University
| | - Xin Yu
- Medical & Regulatory Affairs Department, Fresenisu Kabi (China) Co., Ltd. BD
| |
Collapse
|
35
|
Haga Y, Tonoi T, Anbiru Y, Takahashi Y, Tamura S, Yamamoto M, Ifuku S, Morimoto M, Saimoto H. A Short and Efficient Total Synthesis of (±)-Ascofuranone. CHEM LETT 2010. [DOI: 10.1246/cl.2010.622] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
36
|
Tumtin S, Phucho IT, Nongpiur A, Nongrum R, Vishwakarma JN, Myrboh B, Nongkhlaw RL. One pot synthesis of [1,3]-oxazine and [1,3]-thiazine derivatives under thermal and microwave conditions. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
37
|
Yu S, Du J, Zheng Y, Yan L. Synthesis and characterization of carboxymethyl chitosan containing functional ultraviolet absorber substituent. J Appl Polym Sci 2007. [DOI: 10.1002/app.26947] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
38
|
Bujnowski K, Adamczyk A, Synoradzki L. o-AMINOMETHYL DERIVATIVES OF PHENOLS. PART 2. BENZOXAZINES AND DIBENZYL AMINES: PROPERTIES, STRUCTURE, SYNTHESIS AND PURIFICATION. ORG PREP PROCED INT 2007. [DOI: 10.1080/00304940709458599] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
39
|
Phukan P, Kataki D, Chakraborty P. Direct synthesis of Cbz-protected β-amino ketones by iodine-catalyzed three-component condensation of aldehydes, ketones and benzyl carbamate. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.05.136] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
40
|
Inoue S, Kim R, Hoshino Y, Honda K. Synthesis of tricyclic pyrano[2,3-e]isoindolin-3-ones as the core structure of stachybotrin A, B, and C. Chem Commun (Camb) 2006:1974-6. [PMID: 16767254 DOI: 10.1039/b601433j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The substituted tricyclic pyrano[2,3-e]isoindolin-3-ones and , as the core structure of stachybotrin A, B, and C (), have been regioselectively synthesized for the first time by a short route which involved Mannich reaction and Claisen rearrangement.
Collapse
Affiliation(s)
- Seiichi Inoue
- Graduate School of Environment and Information Sciences, Yokohama National University, 79-7, Tokiwadai, Yokohama, 240-8501, Japan.
| | | | | | | |
Collapse
|
41
|
|
42
|
Xu LW, Xia CG, Li L. Transition Metal Salt-Catalyzed Direct Three-Component Mannich Reactions of Aldehydes, Ketones, and Carbamates: Efficient Synthesis of N-Protected β-Aryl-β-Amino Ketone Compounds. J Org Chem 2004; 69:8482-4. [PMID: 15549824 DOI: 10.1021/jo048778g] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The transition metal salt-catalyzed direct three-component Mannich reactions of aryl aldehydes, aryl ketones, and carbamates are described. The RuCl(3).xH(2)O-, AuCl(3)-PPh(3)-, and AuCl(3)-catalyzed direct Mannich reactions led to the synthesis of N-protected beta-aryl-beta-amino ketones, and the results create new possibilities for exploiting the transition metal salt-catalyzed direct Mannich reaction and facile synthesis of beta-amino ketone libraries.
Collapse
Affiliation(s)
- Li-Wen Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PRC
| | | | | |
Collapse
|
43
|
Xu LW, Wang ZT, Xia CG, Li L, Zhao PQ. Improved Protocol for the Three-ComponentBiginelli Reactions andBiginelli-LikeMannich Reactions of Carbamates, Aldehydes, and Ketones. Helv Chim Acta 2004. [DOI: 10.1002/hlca.200490234] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
44
|
de Mello H, Echevarria A, Bernardino AM, Canto-Cavalheiro M, Leon LL. Antileishmanial Pyrazolopyridine Derivatives: Synthesis and Structure−Activity Relationship Analysis. J Med Chem 2004; 47:5427-32. [PMID: 15481980 DOI: 10.1021/jm0401006] [Citation(s) in RCA: 140] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three series of 4-anilino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic esters were synthesized as part of a program to study potential anti-Leishmania drugs. These compounds were obtained by a condensation reaction of 4-chloro-1H-pyrazolo[3,4-b]pyridine with several aniline derivatives. Some of them were also obtained by an alternative pathway involving a Mannich-type reaction. The hydrophobic parameter, log P, was determined by shake-flask methodology, and using the Hansch-Fujita addictive hydrophobic fragmental constants. These compounds were tested against promastigote forms of Leishmania amazonensis. The very promising results showed the 3'-diethylaminomethyl-substituted compounds as the most active [IC50 = 0.39 (21) and 0.12 microM (22)]. Molecular modeling, using semiempirical AM1 method, predicted the most active compounds through the low-energy conformers superimposition on amodiaquine structure. QSAR equations, derived from the IC50 values against L. amazonensis, showed the hydrophobic (log P) and Sterimol steric (L and B2) parameters as most significant contributions on biological activity.
Collapse
Affiliation(s)
- Heloisa de Mello
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal Rural do Rio de Janeiro, 23851-970, Seropédica/RJ--Brazil
| | | | | | | | | |
Collapse
|
45
|
D. Wilson P, D. Pettigrew J, A. Bexrud J, P. Freeman R. Total Synthesis of (±)-Xyloketal D and Model Studies towards the Total Synthesis of (-)-Xyloketal A. HETEROCYCLES 2004. [DOI: 10.3987/com-03-s(p)37] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|