6729-79-9Relevant academic research and scientific papers
A facile approach to bis(Isoxazoles), promising ligands of the ampa receptor
Averina, Elena B.,Grigoriev, Vladimir V.,Grishin, Yuri K.,Karlov, Dmitry S.,Kuznetsova, Tamara S.,Palyulin, Vladimir A.,Radchenko, Eugene V.,Rybakov, Victor B.,Sadovnikov, Kirill S.,Sedenkova, Kseniya N.,Vasilenko, Dmitry A.,Zamoyski, Vladimir L.
, (2021/11/01)
A convenient synthetic approach to novel functionalized bis(isoxazoles), the promising bivalent ligands of the AMPA receptor, was elaborated. It was based on the heterocyclization reactions of readily available electrophilic alkenes with the tetranitromethane-triethylamine complex. The structural diversity of the synthesized compounds was demonstrated. In the electrophysi-ological experiments using the patch clamp technique on Purkinje neurons, the compound 1,4-phenylenedi(methylene)bis(5-aminoisoxazole-3-carboxylate) was shown to be highly potent positive modulator of the AMPA receptor, potentiating kainate-induced currents up to 70% at 10?11 M.
Fluorescent multi-component polymer sensors for the sensitive and selective detection of Hg2+/Hg+ions: Via dual mode fluorescence and colorimetry
Cheng, Xinjian,Liu, Kaiqi,Marin, Luminita,Xiao, Li
, p. 22888 - 22901 (2021/12/24)
Multi-component polymers (MCPs) incorporate multiple components into the main chain or pendant group and have special functions. In this work, the small-molecule fluorescent boron-dipyrromethene (BODIPY), with ester groups and/or alkoxyl long chains, was synthesized first. Then, this small-molecule BODIPY and the components containing CC bonds (HD and PD) were reacted via the Heck coupling reaction to obtain macromolecular probes that perform different functions. With the help of ester groups and alkoxyl "tail", polymers MCP1 and MCP2 were soluble in a variety of water-miscible organic solvents. Moreover, MCP3 and MCP4 were completely soluble in water. These macromolecular probes showed sensitive and selective recognition toward Hg2+/Hg+ because of the introduced components (HD and PD) containing CC bonds. After binding to Hg2+/Hg+, MCP1 and MCP2 demonstrated fluorescence quenching and color changes, which allowed the dual-channel specific detection of Hg2+/Hg+. Compared with the probes containing HD, the probes containing PD showed higher sensitivity, and the good recognition ability caused the detection limit to be as low as 0.32 μM, which may be due to the "molecular wire"mechanism. The small-molecule components with different functional groups were polymerized into fluorescent polymer materials. This methodology endows the polymer probe with good solubility and high sensitivity, and the as-prepared polymers could sense metal ions in aqueous environments. This journal is
Synthesis and characterization of triptycene type cross-linker and its use in photoinduced curing applications
Ates, Sahin,Aydogan, Binnur,Torun, Lokman,Yagci, Yusuf
scheme or table, p. 825 - 831 (2011/02/25)
A novel triptycene type diacrylate cross-linker, triptycene hydroquinone diacrylate (THDA) was synthesized from the reaction of triptycene hydroquinone with acryloyl chloride and characterized. The photocuring behaviour and the reaction kinetics of the synthesized cross-linker were investigated by means of photo-differential scanning calorimetry (photo-DSC) experiments. Formulations containing monofunctional (meth)acrylate monomers, namely glycidyl methacrylate (GMA), 2-hydroxyethyl acrylate (HEA), 2-hydroxyethyl methacrylate (HEMA), and 2-ethylhexyl methacrylate (EHMA), cross-linker, THDA and 2,2-dimethoxy-2-phenylacetophenone (DMPA) as a photoinitiator were irradiated. A?conventional cross-linker without triptycene unit such as hydroquinone diacrylate (HDA) was used under the same conditions for comparison. The effects of the structure of the monofunctional monomer and triptycene moiety on the photopolymerization kinetics were evaluated and discussed.
Antimicrobial activity of p-hydroxyphenyl acrylate derivatives
Jung, Hee Kim,Park, Eun-Soo,Jae, Hun Shim,Kim, Mal-Nam,Moon, Woong-Sik,Chung, Kyoo-Hyun,Yoon, Jin-San
, p. 7480 - 7483 (2007/10/03)
To estimate the antimicrobial effect of p-hydroxyphenyl acrylate (H5) derivatives on the basis of their molecular structure, the hydroxy and acryl groups of p-hydroxyphenyl acrylate were modified. The antimicrobial activity of the resulting compounds was assessed against a Gram-positive bacterium (Staphylococcus aureus), a Gram-negative bacterium (Pseudomonas aeruginosa), and fungi (Aspergillus fumigatus and Penicillium pinphilum) by the halo zone and the shake flask test. The antimicrobial activity of H5 was ascribed mainly to the acryl group. Compounds with acryl or acryloxy groups bound to the phenyl moiety were found to exhibit particularly high antimicrobial activities. The activities of phenyl acrylate and phenyl vinyl ketone were excellent as compared to aliphatic acrylates such as cyclohexyl acrylate and hexyl acrylate, indicating that the stereoelectronic effect of the phenyl group was important to the antimicrobial activity.
Biodegradable neuromuscular blocking agents. Part V. α,ω-bisquaternary polyalkylene phenolic esters
Stenlake,Waigh,Dewar,et al.
, p. 273 - 276 (2007/10/02)
A small group of α,ω-bisquaternary polyalkylene esters of quinol, catechol, and pyrogallol have been synthesised, and tested as potential biodegradable neuromuscular blocking agents. Three of the compounds were virtually inactive and the remainder of low potency compared to that of tubocuranine. Duration of action and vagal blockade have also been recorded.
