35664-67-6Relevant academic research and scientific papers
Salicylaldehyde-based anion sensors featuring turn-on fluorescence, colorimetry, and the anti-counterfeiting application
Chen, Qiaobin,Li, Chencheng,Wu, Jianglan,Zhao, Jiang
, (2021/08/16)
Two simple salicylaldehyde-based sensors BDQ and BQ were developed, which had been applied in anion sensing and anti-counterfeiting. Their chemical structures were determined by the 1H, 13C NMR and mass spectra. In the anion sensing
MgBr2 supported on Fe3O4@SiO2?~?urea nanoparticle: An efficient catalyst for ortho-formylation of phenols and oxidation of benzylic alcohols
Soleimani, Ebrahim,Yaesoobi, Nadieh,Ghasempour, Hamid Reza
, (2017/10/07)
Urea was successfully immobilized on the surface of chloropropyl-modified Fe3O4@SiO2 core–shell magnetic nanoparticles, then supported by MgBr2 and acts as a unique catalyst for oxidation of benzylic alcohols to aldehydes and ketones, and ortho-formylation of phenols to salicylaldehydes. The prepared catalyst was characterized by FT-IR, transmission electron microscopy, scanning electron microscopy, X-ray powder diffraction, dispersive X-ray spectroscopy, CHN and TGA. It was found that Fe3O4@SiO2?~?urea/MgBr2 showed higher catalytic activity than homogenous MgBr2, and could be reused several times without significant loss of activity.
Bichromatic Photosynthesis of Coumarins by UV Filter-Enabled Olefin Metathesis
Eivgi, Or,Sutar, Revannath L.,Reany, Ofer,Lemcoff, N. Gabriel
supporting information, p. 2352 - 2357 (2017/07/22)
Herein, we report on a two-step bichromatic synthesis of coumarins involving UV-A and UV-C light. The first step is a UV-A-photoinduced ruthenium-catalyzed cross-metathesis (CM) reaction of 2-nitrobenzyl-protected 2-hydroxystyrenes with acrylates, using an external solution of 1-pyrenecarboxaldehyde as a UV filter. Irradiation in the absence of the filter permanently inhibits the light-activated catalyst due to photocleavage of the photolabile protecting group (PPG) and ensuing phenolate chelation to the ruthenium. The simple removal of the external filter after CM allows further photochemical reactions with UV-C light to achieve more complex architectures, such as the coumarins presented in this work. (Figure presented.).
Structure-activity relationship study of E6 as a novel necroptosis inducer
Mou, Jianfeng,Park, Ann,Cai, Yu,Yuan, Junying,Yuan, Chengye
supporting information, p. 3057 - 3061 (2015/06/22)
Necroptosis inducers represent a promising potential treatment for drug-resistant cancer. We herein describe the structure modification of E6, which was identified recently as a potent and selective necroptosis inducer. The studies described herein demonstrate for the first time that functionalized biphenyl derivatives possess necroptosis inducer activity. Furthermore, these studies have led to the identification of two promising compounds (5h and 5j) that can be used for further optimization studies as well as mechanism of action investigations.
Composition for treatment of pathogens that are resistant to tetracyclines
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Paragraph 0096-0097, (2014/08/19)
The invention relates to compounds and pharmaceutical compositions useful in combination with tetracyclines in the treatment of bacterial infections caused by Gram-positive and Gram-negative pathogens, with particular efficacy in tetracycline resistant st
COMPOSITION FOR TREATMENT OF PATHOGENS THAT ARE RESISTANT TO TETRACYCLINES
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Page/Page column 27, (2014/08/19)
The invention relates to compounds and pharmaceutical compositions useful in combination with tetracyclines in the treatment of bacterial infections caused by Gram- positive and Gram-negative pathogens, with particular efficacy in tetracycline resistant s
Aldehyde-Assisted Ruthenium(II)-Catalyzed C-H Oxygenations
Yang, Fanzhi,Rauch, Karsten,Kettelhoit, Katharina,Ackermann, Lutz
supporting information, p. 11285 - 11288 (2016/02/18)
Versatile ruthenium(II) complexes allow for site-selective C-H oxygenations with weakly-coordinating aldehydes. The challenging C-H functionalizations proceed with high chemoselectivity by rate-determining C-H metalation. The new method features an ample substrate scope, which sets the stage for the step-economical preparation of various bioactive heterocycles.
ORGANOMETALIC COMPOUNDS FOR ELECTROLUMINESCENCE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Page/Page column 13, (2010/06/22)
The present invention relates to organic electroluminescent compounds and electroluminescent devices comprising the same as host material. The electroluminescent compounds according to the invention are characterized by having three ligands, two bivalent metals and a monovalent anion derived from an inorganic or an organic acid.
Structure-activity relationship and molecular mechanisms of ethyl 2-amino-4-(2-ethoxy-2-oxoethyl)-6-phenyl-4H-chromene-3-carboxylate (sHA 14-1) and its analogues
Das, Sonia G.,Doshi, Jignesh M.,Tian, Defeng,Addo, Sadiya N.,Srinivasan, Balasubramanian,Hermanson, David L.,Xing, Chengguo
scheme or table, p. 5937 - 5949 (2010/03/24)
Rapid development of multiple drug resistance against current therapies is a major barrier in the treatment of cancer. Therefore, anticancer agents that can overcome acquired drug resistance in cancer cells are of great importance. Previously, we have demonstrated that ethyl 2-amino-4-(2-ethoxy-2-oxoethyl)-6- phenyl-4H-chromene-3-carboxylate (5a, sHA 14-1), a stable analogue of ethyl 2-amino-6-bromo-4-(1-cyano-2-ethoxy-2-oxoethyl)-4H-chromene-3-carboxylate (6, HA 14-1), mitigates drug resistance and synergizes with a variety of cancer therapies in leukemia cells. Structure-activity relationship (SAR) studies of 5a guided the development of ethyl 2-amino-6-(3′,5′-dimethoxyphenyl)- 4-(2-ethoxy-2-oxoethyl)-4H-chromene-3-carboxylate (5q, CXL017), a compound with low micromolar cytotoxicity against a wide-range of hematologic and solid tumor cells. More excitingly, our studies of 5q in camptothecin (CCRF-CEM/C2) and mitoxantrone (HL-60/MX2) resistant cancer cells highlight its ability to selectively kill drug-resistant cells over parent cancer cells. 5q inhibits tumor cell growth through the induction of apoptosis, with detailed mechanism of its selectivity toward drug-resistant cancer cells under investigation. These results suggest that 5q is a promising candidate for treatment of cancers with multiple drug resistance. 2009 American Chemical Society.
Monoaryl-substituted salicylaldoximes as ligands for estrogen receptor β
Minutolo, Filippo,Bellini, Rosalba,Bertini, Simone,Carboni, Isabella,Lapucci, Annalina,Pistolesi, Letizia,Prota, Giovanni,Rapposelli, Simona,Solati, Francesca,Tuccinardi, Tiziano,Martinelli, Adriano,Stossi, Fabio,Carlson, Kathryn E.,Katzenellenbogen, Benita S.,Katzenellenbogen, John A.,Macchia, Marco
, p. 1344 - 1351 (2008/09/21)
Salicylaldoximes possess a hydrogen-bonded pseudocyclic A′ ring in place of the typical phenolic A ring that is characteristic of most estrogen receptor (ER) ligands. Monoaryl-substituted salicylaldoximes were obtained by replacing the phenol moiety (ring
