104236-72-8Relevant academic research and scientific papers
Methoxy-Substituted Hydroxychalcone Reduces Biofilm Production, Adhesion and Surface Motility of Acinetobacter baumannii by Inhibiting ompA Gene Expression
U?jak, Du?an,Dini?, Miroslav,Novovi?, Katarina,Ivkovi?, Branka,Filipovi?, Nenad,Stevanovi?, Magdalena,Milenkovi?, Marina T.
, (2021)
An increasing lack of available therapeutic options against Acinetobacter baumannii urged researchers to seek alternative ways to fight this extremely resistant nosocomial pathogen. Targeting its virulence appears to be a promising strategy, as it offers
Synthesis and antibacterial activity of chalcone derivatives containing thioether triazole
Chen, Mei,Chen, Ying,He, Jun,He, Ming,Li, Pu,Su, Shijun,Wang, Hua,Xue, Wei
, (2020)
The infection of Xanthomonas oryzae pv. Oryzae (Xoo), Ralstonia solanacearum (Rs), and Xanthomonas axonopodis pv. Citri (Xac) has become a major problem in agricultural production. In this study, a series of novel chalcone derivatives containing thioether triazoles were designed and synthesized. The structures of the novel compounds were systematically characterized via 1H-NMR, 13C-NMR, and HRMS. Moreover, the antibacterial activity results showed that E10, E11, E15, and E16 have adequate antibacterial activities against Xoo, Rs, and Xac. Among the different compounds, E15 exhibited remarkable inhibitory effect against Xac with an EC50 of 9.1 μg.mL-1, which was better than that of commercial agent bismerthiazol (54.9 μg.mL-1). In addition, the possible antibacterial mechanism of the target compound E15 against Xac was studied via scanning electron microscopy (SEM).
Synthesis and preliminary biological evaluation of 4,6-disubstituted 3-cyanopyridin-2(1H)-ones, a new class of calcium entry blockers
Manna, Fedele,Chimenti, Franco,Bolasco, Adriana,Bizzarri, Bruna,Botta, Maurizio,Tafi, Andrea,Filippelli, Amelia,Rossi, Settimio
, p. 1883 - 1885 (2000)
The preparation of 3-cyano-4,6-diaryl-pyridin-2(1H)-ones 4a-h, calcium entry blockers related to diltiazem, is described starting from 1,3-diaryl-2-propen-1-ones 5. On preliminary pharmacological tests all compounds are active and some of them show calcium antagonistic activity superior or comparable to diltiazem. (C) 2000 Elsevier Science Ltd. All rights reserved.
Differences in antioxidant potential of chalcones in human serum: In vitro study
Ivkovi?, Branka,Jankovi?, Tamara,Kotur-Stevuljevi?, Jelena,Turkovi?, Nemanja,Vuji?, Zorica
, (2020)
Introduction: An imbalance between oxidants and antioxidants in favour of oxidants, potentially leading to damage, is termed oxidative stress. Antioxidants (AO), either enzymatic or non-enzymatic, are the ones that can reduce diverse effects of pro-oxidan
Synthesis and anti Methicillin resistant Staphylococcus aureus activity of substituted chalcones alone and in combination with non-beta-lactam antibiotics
Tran, Thanh-Dao,Do, Tuong-Ha,Tran, Ngoc-Chau,Ngo, Trieu-Du,Huynh, Thi-Ngoc-Phuong,Tran, Cat-Dong,Thai, Khac-Minh
, p. 4555 - 4560 (2012)
A total of 30 chalcone analogues was synthesized via a base catalyzed Claisen Schmidt condensation and screened for their in vitro antibacterial activity against Methicillin-sensitive Staphylococcus aureus (MSSA) and Methicillin-resistant Staphylococcus aureus (MRSA) alone or in combination with non beta-lactam antibiotics namely ciprofloxacin, chloramphenicol, erythromycin, vancomycin, doxycycline and gentamicin. In the checkerboard technique, fractional inhibitory concentration indices (FICI) show that the following combinations like ciprofloxacin with 25 (4′-bromo-2-hydroxychalcone); doxycycline with 21 (4-hydroxychalcone); doxycycline with 25; and doxycycline with 4 (2′,2-dihydroxychalcone) were synergistic against MRSA. In term SAR study, the relationship between chalcone structure and their antibacterial activity against S. aureus and synergy with tested antibiotics were discussed. Possible mechanisms for antibacterial activity of chalcones alone as well as the synergistic effect in combinations were proposed by molecular modeling studies, respectively. Combinations of chalcones with conventional antibiotics could be an effective alternative in the treatment of infection caused by MRSA.
The modulating effect of methoxy-derivatives of 2’-hydroxychalcones on the release of IL-8, MIF, VCAM-1 and ICAM-1 by colon cancer cells
Bronikowska, Joanna,Czuba, Zenon P.,Janeczko, Tomasz,K?ósek, Ma?gorzata,Kostrzewa-Sus?ow, Edyta
, (2021/11/22)
Colon cancer is one of the leading causes of death in the world. The search for effective and minimally invasive methods of treating colon cancer is the aim of modern medicine. Chalcones and their derivatives have shown an anticancer activity. The aim of
Convenient synthesis of flavanone derivatives via oxa-Michael addition using catalytic amount of aqueous cesium fluoride
Miura, Motofumi,Shigematsu, Karin,Toriyama, Masaharu,Motohashi, Shigeyasu
supporting information, (2021/10/25)
A total of 36 flavanones, which included polycyclic aromatic and heterocyclic rings, were readily synthesized via oxa-Michael addition from the corresponding hydroxychalcones with a catalytic amount of aqueous cesium fluoride solution under mild conditions. This method could be applied to the scalable synthesis of eriodictyol as a known potent inhibitor of the SARS-CoV-2 spike protein.
Novel chalcone derivatives containing a 1,2,4-triazine moiety: Design, synthesis, antibacterial and antiviral activities
Tang, Xu,Su, Shijun,Chen, Mei,He, Jun,Xia, Rongjiao,Guo, Tao,Chen, Ying,Zhang, Cheng,Wang, Jun,Xue, Wei
, p. 6011 - 6020 (2019/03/12)
A series of novel chalcone derivatives containing the 1,2,4-triazine moiety were synthesized and their structures were confirmed by 1H NMR, 13C NMR and elemental analyses. Antiviral bioassays revealed that most of the compounds exhibited good antiviral activity against tobacco mosaic virus (TMV) at a concentration of 500 μg mL-1. The designated compound 4l was 50% effective in terms of curative and protective activities against TMV with 50% effective concentrations (EC50) of 10.9 and 79.4 μg mL-1, which were better than those of ningnanmycin (81.4 and 82.2 μg mL-1). Microscale thermophoresis (MST) also showed that the binding of compound 4l to coat protein (TMV-CP) yielded a Kd value of 0.275 ± 0.160 μmol L-1, which was better than that of ningnanmycin (0.523 ± 0.250 μmol L-1). At the same time, molecular docking studies for 4l with TMV-CP (PDB code:1EI7) showed that the compound was embedded well in the pocket between the two subunits of TMV-CP. Meanwhile, compound 4a demonstrated excellent antibacterial activities against Ralstonia solanacearum (R. solanacearum), with an EC50 value of 0.1 μg mL-1, which was better than that of thiodiazole-copper (36.1 μg mL-1) and bismerthiazol (49.5 μg mL-1). The compounds act by causing folding and deformation of the bacterial cell membrane as observed using scanning electron microscopy (SEM). The chalcone derivatives thus synthesized could become potential alternative templates for novel antiviral and antibacterial agents.
A novel chalcone derivative and composition for anticancer comprising the same
-
Paragraph 0052-0055, (2020/05/06)
The present invention relates to a novel chalcone derivative and an anticancer composition including the chalcone derivative. In the present invention, provided are an anticancer drug for treating ovarian cancer cells and another anticancer drug for treating ovarian cancer cells having resistance to cisplatin. For this, in the present invention, provided is a compound denoted by chemical formula 1 in which R^1 is H or OCH_3, R^2 is OCH_3 or H, R^3 is OCH_3, R^4 is H, R^5 is OCH_3, R^6 is H and R^7 is OCH_3.
Superior anticancer activity of halogenated chalcones and flavonols over the natural flavonol quercetin
Dias, Tatiana A.,Duarte, Cecília L.,Lima, Cristovao F.,Proen?a, M. Fernanda,Pereira-Wilson, Cristina
, p. 500 - 510 (2013/10/01)
A series of chalcone and flavonol derivatives were synthesized in good yield by an eco-friendly approach. A pharmacological evaluation was performed with the human colorectal carcinoma cell line HCT116 and revealed that the anticancer activity of flavonols was higher when compared with that of the respective chalcone precursors. The antiproliferative activity of halogenated derivatives increases as the substituent in the 3- or 4-positon of the B-ring goes from F to Cl and to Br. In addition, halogens in position 3 enhance anticancer activity in chalcones whereas for flavonol derivatives the best performance was registered for the 4-substituted derivatives. Flow cytometry analysis showed that compounds 3p and 4o induced cell cycle arrest and apoptosis as demonstrated by increased S, G2/M and sub-G1 phases. These data were corroborated by western blot and fluorescence microscopy analysis. In summary, halogenated chalcones and flavonols were successfully prepared and presented high anticancer activity as shown by their cell growth and cell cycle inhibitory potential against HCT116 cells, superior to that of quercetin, used as a positive control.
