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Fotopoulou T, Papadopoulou A, Tzani A, Mamais M, Mavrogonatou E, Pratsinis H, Koufaki M, Kletsas D, Calogeropoulou T. Design and Synthesis of Novel Antioxidant 2-Substituted-5,7,8-Trimethyl-1,4-Benzoxazine Hybrids: Effects on Young and Senescent Fibroblasts. Antioxidants (Basel) 2024; 13:798. [PMID: 39061867 PMCID: PMC11274006 DOI: 10.3390/antiox13070798] [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: 05/29/2024] [Revised: 06/23/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
The exponential growth of the aged population worldwide is followed by an increase in the prevalence of age-related disorders. Oxidative stress plays central role in damage accumulation during ageing and cell senescence. Thus, a major target of today's anti-ageing research has been focused on antioxidants counteracting senescence. In the current work, six novel 5,7,8-trimethyl-1,4-benzoxazine/catechol or resorcinol hybrids were synthesized connected through a methoxymethyl-1,2,3-triazolyl or a 1,2,3-triazoly linker. The compounds were evaluated for their antioxidant capacity in a cell-free system and for their ability to reduce intracellular ROS levels in human skin fibroblasts, both young (early-passage) and senescent. The most efficient compounds were further tested in these cells for their ability to induce the expression of the gene heme oxygenase-1 (ho-1), known to regulate redox homeostasis, and cellular glutathione (GSH) levels. Overall, the two catechol derivatives were found to be more potent than the resorcinol analogues. Furthermore, these two derivatives were shown to act coordinately as radical scavengers, ROS inhibitors, ho-1 gene expression inducers, and GSH enhancers. Interestingly, one of the two catechol derivatives was also found to enhance human skin fibroblast viability. The properties of the synthesized compounds support their potential use in cosmetic applications, especially in products targeting skin ageing.
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Affiliation(s)
- Theano Fotopoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Adamantia Papadopoulou
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Andromachi Tzani
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Michail Mamais
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Eleni Mavrogonatou
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Harris Pratsinis
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Maria Koufaki
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Dimitris Kletsas
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Theodora Calogeropoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
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Das KK, Aich D, Dey S, Panda S. One pot conversion of phenols and anilines to aldehydes and ketones exploiting α gem boryl carbanions. Nat Commun 2024; 15:3794. [PMID: 38714666 PMCID: PMC11076505 DOI: 10.1038/s41467-024-47156-0] [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: 12/21/2023] [Accepted: 03/22/2024] [Indexed: 05/10/2024] Open
Abstract
Functional group interconversion is an important asset in organic synthesis. Phenols/anilines being naturally abundant and the carbonyl being the most common in a wide range of bioactive molecules, an efficient conversion is of prime interest. The reported methods require transition metal catalyzed cross coupling which limits its applicability. Here we have described a method for synthesizing various aldehydes and ketones, starting from phenol and protected anilines via Csp2-O/N bond cleavage in a one-pot/stepwise manner. Our synthetic method is found to be compatible with a diverse range of phenols and anilines carrying sensitive functional groups including halides, esters, ketal, hydroxyl, alkenes, and terminal alkynes as well as the substitution on the aryl cores. A short-step synthesis of bioactive molecules and their functionalization have been executed. Starting from BINOL, a photocatalyst has been designed. Here, we have developed a transition metal-free protocol for the conversion of phenols and anilines to aldehydes and ketones.
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Affiliation(s)
- Kanak Kanti Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Debasis Aich
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Sutapa Dey
- School of Energy Science & Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Santanu Panda
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Sharma S, Kumari P, Thakur P, Brar GS, Bouqellah NA, Hesham AEL. Synthesis and characterization of Ni 0.5Al 0.5Fe 2O 4 nanoparticles for potent antifungal activity against dry rot of ginger (Fusarium oxysporum). Sci Rep 2022; 12:20092. [PMID: 36418392 PMCID: PMC9684562 DOI: 10.1038/s41598-022-22620-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 10/17/2022] [Indexed: 11/24/2022] Open
Abstract
Current study signifies the use of nanoparticles as alternative in plant disease management to avoid harmful effect of pesticide and fungicide residue. Synthesis of nanoparticles (Ni0.5Al0.5Fe2O4) by hydrothermal method and studied their X-ray diffraction analysis (XRD), Raman spectra, and UV spectra and further successfully evaluated for antifungal activity against a soil and seed borne pathogenic fungus (Fusarium oxysporum).Among various pests, fungal pathogens are the main cause of crop destruction and we developed nanoparticles (Ni0.5Al0.5Fe2O4) which is successfully evaluated for antimycotic activity against dry rot (F. oxysporum) of ginger which causes 50-70% losses in the ginger plant. In vitro and in vivo analysis designated that the nanoparticles (Ni0.5Al0.5Fe2O4) has shown an excellent antifungal activity against F. oxysporum at 0.5 mg/ml concentration. Similarly, no disease incidence was recorded when Ni0.5Al0.5Fe2O4 nanoparticles used at 0.5 mg/ml concentration under in vivo conditions. In plants various environmental stresses (biotic and abiotic) leads to excessive production of reactive oxygen species (ROS) causing progressive oxidative damage and ultimately leads to cell death. The role of ROS in nanoparticles (Ni0.5Al0.5Fe2O4) represents by reduction in the growth inhibition of F. oxysporum. We speculated in light of these results that the cytotoxic effect of Ni0.5Al0.5Fe2O4 nanoparticles on F. oxysporum may be mediated through ROS. We can suggest the role of nanoparticles (Ni0.5Al0.5Fe2O4) gives a promising result as a fungicidal activity and could be a novel family of future new generation fungicide.
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Affiliation(s)
- Sushma Sharma
- Dr Khem Singh Gill Akal College of Agriculture, Eternal University, H.P., Baru Sahib, Sirmour, India
| | - Poonam Kumari
- Akal College of Basic Science, Eternal University, H.P., Baru Sahib, Sirmour, India.
| | - Priyanka Thakur
- Dr Khem Singh Gill Akal College of Agriculture, Eternal University, H.P., Baru Sahib, Sirmour, India
| | - Gaganpreet Singh Brar
- Dr Yashwant, Singh Parmar University of Horticulture and Forestry, H.P., Nauni, Solan, India
| | - Nahla A Bouqellah
- Science College, Biology Department, Taibah University, Al-Madinah Al-Munawarh, 42317-8599, Saudi Arabia
| | - Abd El-Latif Hesham
- Department of Genetics, Faculty of Agriculture, Beni-Suef University, 62521, Beni-Suef, Egypt.
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4
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Bavandi H, Shahedi M, Habibi Z, Yousefi M, Brask J, Mohammadi M. Biocatalytic decarboxylative Michael addition for synthesis of 1,4-benzoxazinone derivatives. Sci Rep 2022; 12:12713. [PMID: 35882869 PMCID: PMC9325775 DOI: 10.1038/s41598-022-16291-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/07/2022] [Indexed: 11/23/2022] Open
Abstract
The Candida antarctica lipase B (Novozym 435) is found to catalyze a novel decarboxylative Michael addition in vinylogous carbamate systems for the synthesis of 1,4-benzoxazinone derivatives. The reaction goes through Michael addition, ester hydrolysis and decarboxylation. A possible mechanism is suggested, with simultaneous lipase-catalyzed Michael addition and ester hydrolysis. The present methodology offers formation of complex products through multi-step reactions in a one pot process under mild and facile reaction conditions with moderate to high yields (51–90%) and no side product formation. The reaction seems to be is a great example of enzymatic promiscuity.
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Affiliation(s)
- Hossein Bavandi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Mansour Shahedi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Zohreh Habibi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
| | - Jesper Brask
- Novozymes A/S, Krogshøjvej 36, 2880, Bagsværd, Copenhagen, Denmark
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Ionic liquid-catalyzed synthesis of (1,4-benzoxazin-3-yl) malonate derivatives via cross-dehydrogenative-coupling reactions. HETEROCYCL COMMUN 2022. [DOI: 10.1515/hc-2022-0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
A convenient C(sp3)–C(sp3) oxidative dehydrogenative coupling reaction of 1,4-benzoxazin-2-ones with malonate esters was developed under mild conditions to obtain the respective ester malonates in high yields. Reactions take place in [omim]FeCl4, acting as both the solvent and the catalyst. Under [omim]Cl/FeCl3-DDQ conditions, derivatives of 1 coupled with malonate 2 to give the target molecules within 1–2 h time periods. The ionic liquid was recovered and reused in the next reactions without losing its efficiency.
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6
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Borrego-Muñoz P, Ospina F, Quiroga D. A Compendium of the Most Promising Synthesized Organic Compounds against Several Fusarium oxysporum Species: Synthesis, Antifungal Activity, and Perspectives. Molecules 2021; 26:3997. [PMID: 34208916 PMCID: PMC8271819 DOI: 10.3390/molecules26133997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/25/2021] [Accepted: 06/27/2021] [Indexed: 11/17/2022] Open
Abstract
Vascular wilt caused by F. oxysporum (FOX) is one of the main limitations of producing several agricultural products worldwide, causing economic losses between 40% and 100%. Various methods have been developed to control this phytopathogen, such as the cultural, biological, and chemical controls, the latter being the most widely used in the agricultural sector. The treatment of this fungus through systemic fungicides, although practical, brings problems because the agrochemical agents used have shown mutagenic effects on the fungus, increasing the pathogen's resistance. The design and the synthesis of novel synthetic antifungal agents used against FOX have been broadly studied in recent years. This review article presents a compendium of the synthetic methodologies during the last ten years as promissory, which can be used to afford novel and potential agrochemical agents. The revision is addressed from the structural core of the most active synthetic compounds against FOX. The synthetic methodologies implemented strategies based on cyclo condensation reactions, radical cyclization, electrocyclic closures, and carbon-carbon couplings by metal-organic catalysis. This revision contributes significantly to the organic chemistry, supplying novel alternatives for the use of more effective agrochemical agents against F. oxysporum.
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Affiliation(s)
| | | | - Diego Quiroga
- Bioorganic Chemistry Laboratory, Facultad de Ciencias Básicas y Aplicadas, Campus Nueva Granada, Universidad Militar, Nueva Granada, Cajicá 250247, Colombia; (P.B.-M.); (F.O.)
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7
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Moriyama K, Kuramochi M, Tsuzuki S, Fujii K, Morita T. Nitroxyl Catalysts for Six-Membered Ring Bromolactonization and Intermolecular Bromoesterification of Alkenes with Carboxylic Acids. Org Lett 2021; 23:268-273. [PMID: 33300800 DOI: 10.1021/acs.orglett.0c03546] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We developed a nitroxyl-catalyzed bromoesterification of alkenes with bromo reagents, which includes a six-membered ring bromolactonization of alkenyl carboxylic acids catalyzed by AZADO as the nitroxyl radical catalyst, and an intermolecular bromoesterification of alkenes with carboxylic acids using NMO as the N-oxide catalyst. We also accomplished a remote diastereoselective bromohydroxylation via an AZADO-catalyzed six-membered ring bromolactonization and a subsequent ring cleavage reaction with alkylamines to furnish ε-bromo-δ-hydroxy amides with high diastereoselectivity.
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Affiliation(s)
- Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Masako Kuramochi
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Seiji Tsuzuki
- Research Initiative of Computational Sciences (RICS), Nanosystem Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Kozo Fujii
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Takeshi Morita
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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8
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Stepanova EE, Balandina SY, Drobkova VA, Dmitriev MV, Mashevskaya IV, Maslivets AN. Synthesis, in vitro antibacterial activity against Mycobacterium tuberculosis, and reverse docking-based target fishing of 1,4-benzoxazin-2-one derivatives. Arch Pharm (Weinheim) 2020; 354:e2000199. [PMID: 33617016 DOI: 10.1002/ardp.202000199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/07/2020] [Accepted: 09/11/2020] [Indexed: 11/06/2022]
Abstract
Seventeen 1,4-benzoxazin-2-ones bearing the enaminone moiety and three of their analogs were tested for the antibacterial activity against Mycobacterium tuberculosis (H37Rv). Minimal bactericidal concentrations (MBCs) were determined after 41 days of incubation by BACTEC. 1,4-Benzoxazin-2-ones bearing the unsubstituted benzo moiety showed the most promising activities (MBC = 5.00 µg/ml). For most active compounds, antibacterial activities were determined daily during the 41 days. The most promising compound showed a bacteriostatic effect at a concentration of 0.31 µg/ml on Day 4 of incubation, 0.62 µg/ml on Day 6, 2.50 µg/ml on Day 9, and 5.00 µg/ml on Day 41. All studied compounds, along with some of their reported analogs, were docked to 35 proteins of M. tuberculosis to find their potent targets in these organisms. As a result of reverse docking, aspartate 1-decarboxylase, panD, was selected as the most appropriate target. Docking of the most active compounds to mutant panD from pyrazinamide-resistant strains of M. tuberculosis implies that they would not be active against these strains. Considering that most of pyrazinamide clinical resistance cases are due to loss-of-function mutations in pyrazinamidase, pncA, compounds from this study could be useful drugs for the treatment of some cases of pyrazinamide-resistant tuberculosis.
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Affiliation(s)
| | | | - Vera A Drobkova
- Department of Chemistry, Perm State University, Perm, Russia
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9
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Stepanova EE, Dmitriev MV, Maslivets AN. Synthesis of 1,4-benzothiazinones from acylpyruvic acids or furan-2,3-diones and o-aminothiophenol. Beilstein J Org Chem 2020; 16:2322-2331. [PMID: 33029250 PMCID: PMC7522460 DOI: 10.3762/bjoc.16.193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/08/2020] [Indexed: 11/23/2022] Open
Abstract
Two synthetic approaches to enaminones fused to 1,4-benzothiazin-2-one moiety, which can be interesting in studies on biological activity, chemosensors, and fluorescence, were developed via the reaction of furan-2,3-diones or acylpyruvic acids in the presence of carbodiimides with o-aminothiophenols. The target enaminones were formed together with pharmaceutically interesting 2-hydroxy-2H-1,4-benzothiazin-3(4H)-ones. A selective synthetic approach to 2-hydroxy-2H-1,4-benzothiazin-3(4H)-ones was developed via the solvent-switchable reaction of furan-2,3-diones with o-aminothiophenol. Preliminary biological assays (antimicrobial, acute toxicity) of the new compounds were carried out.
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Affiliation(s)
- Ekaterina E Stepanova
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm 614990, Russian Federation
| | - Maksim V Dmitriev
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm 614990, Russian Federation
| | - Andrey N Maslivets
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm 614990, Russian Federation
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10
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Bardasov IN, Alekseeva AY, Bezgin DA, Ershov OV. Synthesis of 3-Arylcyclopropane-1,1,2,2-tetracarbonitriles under Micellar Catalysis. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2019. [DOI: 10.1134/s1070428018120187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Gojiya DG, Vekariya MB, Kapupara VH, Bhatt TD, Kalavadiya PL, Joshi HS. Rapid, Simple and Efficient Microwave‐Assisted Alkylation of 6‐Acetyl‐2 H‐Benzo[e][1, 3] Oxazine‐2, 4(3 H)‐Dione. ChemistrySelect 2019. [DOI: 10.1002/slct.201803607] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Dinesh G. Gojiya
- Department of ChemistrySaurashtra University, Rajkot- 360005 Gujarat INDIA)
| | - Mitesh B. Vekariya
- Department of ChemistrySaurashtra University, Rajkot- 360005 Gujarat INDIA)
| | - Vimal H. Kapupara
- Department of ChemistrySaurashtra University, Rajkot- 360005 Gujarat INDIA)
| | - Tejal D. Bhatt
- Department of ChemistrySaurashtra University, Rajkot- 360005 Gujarat INDIA)
| | | | - Hitendra S. Joshi
- Department of ChemistrySaurashtra University, Rajkot- 360005 Gujarat INDIA)
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12
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Lv M, Liu G, Jia M, Xu H. Synthesis of matrinic amide derivatives containing 1,3,4-thiadiazole scaffold as insecticidal/acaricidal agents. Bioorg Chem 2018; 81:88-92. [DOI: 10.1016/j.bioorg.2018.07.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/18/2018] [Accepted: 07/31/2018] [Indexed: 01/24/2023]
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13
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Kong W, Bao Y, Ma Q, Xu H. Synthesis and biological activities of novel pyrazolomatrine derivatives. Bioorg Med Chem Lett 2018; 28:3338-3341. [PMID: 30217413 DOI: 10.1016/j.bmcl.2018.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/22/2018] [Accepted: 09/06/2018] [Indexed: 12/16/2022]
Abstract
In continuation of our program aimed at the development of new natural product-based pesticides, a series of novel pyrazolomatrine derivatives were prepared by structural modifications of matrine, isolated as a quinolizidine alkaloid from the roots of Sophora flave. Their structures were confirmed by 1H NMR, HRMS, etc. Moreover, the steric structures of three compounds were determined by single-crystal X-ray diffraction. Among all derivatives, 19-(naphthyl-2-oyl)pyrazolomatrine (5y) showed 3.13-fold more potent acaricidal activity than its precusor matrine against Tetranychus cinnabarinus; 19-(4-methylbenzoyl)pyrazolomatrine (5j) and 19-(3,5-dimethylbenzoyl)pyrazolomatrine (5k) displayed the promising aphicidal activity against Aphis citricola van der. Their structure-activity relationships were also observed.
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Affiliation(s)
- Wenlong Kong
- Research Institute of Pesticidal Design & Synthesis, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Yinhe Bao
- Research Institute of Pesticidal Design & Synthesis, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Qianjun Ma
- Research Institute of Pesticidal Design & Synthesis, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Hui Xu
- Research Institute of Pesticidal Design & Synthesis, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi Province, China; State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjing 300071, China.
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14
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Sharma V, Jaiswal PK, Kumar K, Saran M, Mathur M, Swami AK, Chaudhary S. An efficient synthesis and biological evaluation of novel analogues of natural product Cephalandole A: A new class of antimicrobial and antiplatelet agents. Fitoterapia 2018; 129:13-19. [DOI: 10.1016/j.fitote.2018.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/29/2018] [Accepted: 06/03/2018] [Indexed: 01/05/2023]
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15
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Huang J, Lv M, Thapa S, Xu H. Synthesis of novel quinolinomatrine derivatives and their insecticidal/acaricidal activities. Bioorg Med Chem Lett 2018; 28:1753-1757. [DOI: 10.1016/j.bmcl.2018.04.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 12/17/2022]
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16
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Yang R, Zhang Y, Xu H. Synthesis of novel isoxazoline-containing podophyllotoxin/2′(2′,6′)-(di)halogenopodophyllotoxin derivatives and their insecticidal/acaricidal activities. Bioorg Med Chem Lett 2018; 28:1410-1416. [DOI: 10.1016/j.bmcl.2018.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/06/2018] [Accepted: 02/09/2018] [Indexed: 12/16/2022]
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17
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Jaiswal PK, Sharma V, Kumar S, Mathur M, Swami AK, Yadav DK, Chaudhary S. Non-peptide-based new class of platelet aggregation inhibitors: Design, synthesis, bioevaluation, SAR, andin silicostudies. Arch Pharm (Weinheim) 2018. [DOI: 10.1002/ardp.201700349] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Pradeep K. Jaiswal
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry; Malaviya National Institute of Technology; Jaipur India
| | - Vashundhra Sharma
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry; Malaviya National Institute of Technology; Jaipur India
| | - Surendra Kumar
- College of Pharmacy; Gachon University of Medicine and Science; Incheon City Korea
| | - Manas Mathur
- Department of Advance Molecular Microbiology; Seminal Applied Sciences Pvt. Ltd.; Jaipur India
| | - Ajit K. Swami
- Department of Advance Molecular Microbiology; Seminal Applied Sciences Pvt. Ltd.; Jaipur India
| | - Dharmendra K. Yadav
- College of Pharmacy; Gachon University of Medicine and Science; Incheon City Korea
- Department of Biochemistry; All India Institute of Medical Sciences (AIIMS); Jodhpur Rajasthan India
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry; Malaviya National Institute of Technology; Jaipur India
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18
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Chaudhary S, Shyamlal BRK, Yadav L, Tiwari MK, Kumar K. Ag2O nanoparticle-catalyzed substrate-controlled regioselectivities: direct access to 3-ylidenephthalides and isocoumarins. RSC Adv 2018; 8:23152-23162. [PMID: 35540153 PMCID: PMC9081558 DOI: 10.1039/c8ra03926g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/15/2018] [Indexed: 12/02/2022] Open
Abstract
Herein, we disclose the first example of an efficient, silver oxide nanoparticle-catalyzed, direct regioselective synthesis of 3-ylidenephthalides 11–16 and isocoumarins 17–20via sonogashira type coupling followed by substrate-controlled 5-exo-dig or 6-endo-dig cyclization reaction, respectively. This one pot coupling involves reaction of substituted 2-halobenzoic acid with meta/para-substituted and ortho-substituted terminal alkynes, which proceeded in a regioselective manner resulting in the formation of 3-ylidenephthalides or isocoumarins, respectively, in excellent yields (up to 95%) with complete Z-selectivity. This protocol features relatively broad substrate scope, mild conditions, operational simplicity, and is favourable with aromatic/alicyclic terminal alkynes. The competition experiments and gram-scale synthesis further highlight the importance and versatility of the methodology. The proposed mechanistic pathways illustrate that the regioselectivity is substantially being controlled by the substituent(s) present on the acetylenic phenyl ring. We report the first example of an efficient, Ag2O nanoparticle-catalyzed, direct regioselective synthesis of 3-ylidenephthalides and isocoumarins via Sonogashira type coupling followed by substrate-controlled 5-exo-dig or 6-endo-dig cyclization reaction, respectively.![]()
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Affiliation(s)
- Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
| | - Bharti Rajesh K. Shyamlal
- Laboratory of Organic and Medicinal Chemistry
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
| | - Lalit Yadav
- Laboratory of Organic and Medicinal Chemistry
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
| | - Mohit K. Tiwari
- Laboratory of Organic and Medicinal Chemistry
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
| | - Krishan Kumar
- Laboratory of Organic and Medicinal Chemistry
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
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