نتایج جستجو برای: 8 dioxo octahydroxanthenes

تعداد نتایج: 656093  

Journal: :Archiv der Pharmazie 2013
Malavalli Madaiah Maralekere K Prashanth Hosakere D Revanasiddappa Bantal Veeresh

New 3-[(2,4-dioxo-1,3,8-triazaspiro[4.6]undec-3-yl)methyl]benzonitrile derivatives 8-37 were synthesized and their pharmacological activities were determined with the objective to better understand their structure-activity relationship (SAR) for anticonvulsant activity. All the compounds were evaluated for their possible anticonvulsant activity by maximal electroshock seizure (MES) and pentylen...

Journal: :Angewandte Chemie 2013
Kazuhiko Amakawa Lili Sun Chunsheng Guo Michael Hävecker Pierre Kube Israel E Wachs Soe Lwin Anatoly I Frenkel Anitha Patlolla Klaus Hermann Robert Schlögl Annette Trunschke

Highly dispersed molybdenum oxide supported on mesoporous silica SBA-15 has been prepared by anion exchange resulting in a series of catalysts with changing Mo densities (0.2-2.5 Mo atoms nm(-2) ). X-ray absorption, UV/Vis, Raman, and IR spectroscopy indicate that doubly anchored tetrahedral dioxo MoO4 units are the major surface species at all loadings. Higher reducibility at loadings close to...

Journal: :Bioscience, biotechnology, and biochemistry 2009
Xiaonan Xie Kaori Yoneyama Jun-ya Kurita Yuta Harada Yoichi Yamada Yasutomo Takeuchi Koichi Yoneyama

Germination stimulants for root parasitic plants produced by flax (Linum usitatissimum L.) were purified and characterized. The root exudate of flax contained at least 8 active fractions, and liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography mass spectrometry (GC-MS) analyses suggested that there were 6 strigolactones. Two of them were identified as orobanchol and...

Journal: :Bioorganic chemistry 2005
Yingchun Li Frank M Raushel

Four new compounds have been synthesized as potential inhibitors of dihydroorotase from Escherichia coli. NMR spectroscopy was used to show that 4,6-dioxo-piperidine-2(S)-carboxylic acid (3), exists in solution as a mixture of the hydrate (7), enol (8), and enolate (9) tautomeric forms. This compound was found to be a competitive inhibitor versus dihydroorotate and thio-dihydroorotate at pH val...

Journal: :Catalysis Letters 2022

Abstract In this work, a functionalized gallium metal–organic framework with active dioxo-molybdenum (VI) centers was evaluated as catalyst in the epoxidation of soybean oil using tert-butyl-hydroperoxide an oxidizing agent. The influence reaction time, temperature, and concentration agent studied, it demonstrated that highest epoxide selectivity obtained at 110 °C after 4 h (29% conversion 91%...

Journal: :physical chemistry and electrochemistry 0
mohammad mehdi ghanbari ayoung researchers and elite club, marvdasht branch, islamic azad university, marvdasht, iran abolghasem shameli department of chemistry, omidyeh branch, islamic azad university, omidyeh, iran sina matavos aramyan department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran

the adducts produced in the reaction between trialkyl phosphites and acetylenic esters were trapped by hydantoins to produce highly functionalized dialkyl 2-(2,5-dioxo-4,4-diphenylimidazolidin-1-yl) succinate in good yields.

The adducts produced in the reaction between trialkyl phosphites and acetylenic esters were trapped by hydantoins to produce highly functionalized dialkyl 2-(2,5-dioxo-4,4-diphenylimidazolidin-1-yl) succinate in good yields.

2014

effectiveness of ceftriaxone for injection, and other antibacterial drugs, ceftriaxone for injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. DESCRIPTION: Ceftriaxone for injection, USP is a sterile, semisynthetic, broad-spectrum cephalosporin antibiotic for intravenous or intramuscular administration. Ceftriaxone sodium ...

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