CN
Search Within
W200905
应用筛选条件
关键词:'W200905'
显示 1-30 共 62 条结果 关于 "W200905" 范围 论文
Yuka Inatomi et al.
Journal of natural medicines, 67(2), 359-368 (2012-08-01)
New glycosides of seven acetophenone derivatives (1-7) and two phenylpropanoids (8, 9), named juniperosides III-XI, have been isolated from the MeOH extract of the leaves and stems of Juniperus occidentalis Hook. (Cupressaceae), together with eleven other known compounds. The structures
Bao-Ting Yu et al.
Parasites & vectors, 8, 598-598 (2015-11-19)
Most mosquito species need to obtain sugar from host plants. Little is known about the chemical cues that Culex pipiens pallens use during their orientation to nectar host plants. In this study, we investigated the behavioural responses of female Cx.
Terra D Haddad et al.
The Journal of organic chemistry, 77(2), 889-898 (2011-12-14)
We report a simple, efficient, and general method for the indium-mediated enantioselective propargylation of aromatic and aliphatic aldehydes under Barbier-type conditions in a one-pot synthesis affording the corresponding chiral alcohol products in very good yield (up to 90%) and enantiomeric
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation
Zsolt Székelyhidi et al.
Bioorganic & medicinal chemistry letters, 15(13), 3241-3246 (2005-06-01)
SR protein-specific kinase-1 (SRPK-1) has been identified as a validated target for hepatitis B virus (HBV). A series of novel tricyclic quinoxaline derivatives was designed and synthesised as potential kinase inhibitory antiviral agents and was found to be active and
Fabrice Gritti et al.
Journal of chromatography. A, 1355, 179-192 (2014-07-09)
The mass transfer mechanism in four prototype columns (2.1 and 3.0×50mm, 2.1 and 3.0×100mm) packed with 1.9μm fully porous Titan-C18 particles was investigated by using two previously reported home-made protocols. The first one was used to measure the eddy dispersion
Saowanee Chaipech et al.
Journal of natural medicines, 66(3), 486-492 (2011-11-22)
Two new flav-3-en-3-ol glycosides, kaempferiaosides C (3) and D(4), and two new acetophenone glycosides, kaempferiaosides E (5) and F (6), were isolated from the Thai natural medicine Krachai Dum, the rhizomes of Kaempferia parviflora Wall. ex Baker. Their structures were
V Selvarani et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 91, 329-337 (2012-03-14)
Four tetradentate (N(2)O(2)) and tridentate (NO(2)) Schiff base compounds (L1-L4) with propargyl moiety were prepared by the condensation of 1-[2-hydroxy-4-(prop-2-yn-1-yloxy)phenyl]ethanone with various aliphatic amines. The newly synthesized compounds (L1-L4) were characterized on the basis of the results of elemental analysis
Maili Lehto et al.
PloS one, 9(12), e114490-e114490 (2014-12-05)
In vitro toxicological studies together with atomistic molecular dynamics simulations show that occupational co-exposure with C60 fullerene may strengthen the health effects of organic industrial chemicals. The chemicals studied are acetophenone, benzaldehyde, benzyl alcohol, m-cresol, and toluene which can be
Alka Bali et al.
European journal of medicinal chemistry, 49, 397-405 (2012-02-10)
A series of 3-alkoxy-4-methanesulfonamido acetophenone derivatives were synthesized and evaluated for their anti-inflammatory activity in carrageenan-induced rat paw edema model. The synthesized compounds were also investigated for their gastric ulcerogenic potential. The compounds 4a, 4c and 4d showed comparable anti-inflammatory
Naweed Al-Haque et al.
Biotechnology progress, 28(5), 1186-1196 (2012-06-28)
Effective estimation of parameters in biocatalytic reaction kinetic expressions are very important when building process models to enable evaluation of process technology options and alternative biocatalysts. The kinetic models used to describe enzyme-catalyzed reactions generally include several parameters, which are
Daniel I Perez et al.
Bioorganic & medicinal chemistry, 17(19), 6914-6925 (2009-09-15)
Thienylhalomethylketones, whose chemical, biological, and pharmaceutical data are here reported, are the first irreversible inhibitors of GSK-3beta described to date. Their inhibitory activity is likely related to the cysteine residue present in the ATP-binding site, which is proposed as a
Matthias Onghena et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 31(12), 2090-2102 (2014-11-20)
In 2011, the European Union prohibited the production of polycarbonate (PC) baby bottles due to the toxic effects of the PC monomer bisphenol-A. Therefore, baby bottles made of alternative materials, e.g. polypropylene (PP) or polyethersulphone (PES), are currently marketed. The
Nikola Vaňková et al.
Journal of chromatography. A, 1409, 152-158 (2015-07-29)
The effect of gradient steepness on the kinetic performance limits and peak compression effects has been assessed in gradient mode for the separation of phenol derivatives using columns packed with 2.6μm core-shell particles. The effect of mobile-phase velocity on peak
Fabrice Gritti et al.
Journal of chromatography. A, 1355, 164-178 (2014-06-28)
In a previous report, it was reported that columns packed with fully porous 1.9μm Titan-C18 particles provided a minimum reduced plate height as small as 1.7 for the most retained compound (n-octanophenone) under RPLC conditions. These particles are characterized by
Jelle De Vos et al.
Journal of chromatography. A, 1360, 164-171 (2014-08-17)
To increase detection sensitivity in liquid chromatography, a generic post-column refocusing strategy has been developed to enrich (target) analytes prior to detection. In this strategy, after separation on the analytical column, the analytes are led to a trap column preferably
Ruben De Pauw et al.
Journal of chromatography. A, 1420, 129-134 (2015-10-20)
A new system is proposed for applying fast temperature gradients in liquid chromatography. It consists of a 0.7 mm × 150 mm fused-silica column coated with a 50 μm Nickel-layer, which is connecting with a power source and a temperature
Koji Uwai et al.
Bioorganic & medicinal chemistry, 16(3), 1084-1089 (2007-11-17)
Stereoselective reductive metabolism of various p-substituted acetophenone derivatives was studied using isolated rat liver 3alpha-hydroxysteroid dehydrogenase (3alpha-HSD). Kinetic experiments were performed and analyzed by measuring the products by HPLC using a chiral column. The results demonstrated that the presence of
Eric R Bittner et al.
The Journal of chemical physics, 137(22), 22A551-22A551 (2012-12-20)
The standard model for molecular recognition of an odorant is that receptor sites discriminate by molecular geometry as evidenced that two chiral molecules may smell very differently. However, recent studies of isotopically labeled olfactants indicate that there may be a
Mei-Huey Lin et al.
Molecules (Basel, Switzerland), 17(3), 2464-2473 (2012-03-03)
A simple procedure for SnCl(2)/TiCl(3)-mediated deoximation of ketoximes in an aqueous solvent is reported. Under the conditions developed in this effort, various ketones and aldehydes are produced in good to excellent yields.
Ashley A Reinke et al.
Bioorganic & medicinal chemistry letters, 19(17), 4952-4957 (2009-07-31)
Aggregated amyloid-beta (Abeta) peptide is implicated in the pathology of Alzheimer's disease. In vitro and in vivo, these aggregates are found in a variety of morphologies, including globular oligomers and linear fibrils, which possess distinct biological activities. However, known chemical
Volatile flavor components in crayfish waste.
Tanchotikul U & Hsieh TCY
Journal of Food Science, 54(6), 1515-1520 (1989)
Xinzheng Yang
Inorganic chemistry, 50(24), 12836-12843 (2011-11-23)
The hydrogenation of ketones catalyzed by 2,6-bis(diisopropylphosphinomethyl)pyridine (PNP)-ligated iron pincer complexes was studied using the range-separated and dispersion-corrected ωB97X-D functional in conjunction with the all-electron 6-31++G(d,p) basis set. A validated structural model in which the experimental isopropyl groups were replaced
Fabrice Gritti et al.
Journal of chromatography. A, 1384, 76-87 (2015-02-11)
Previous data have shown that could deliver a minimum reduced plate height as small as 1.7. Additionally, the reduction of the mesopore size after C18 derivatization and the subsequent restriction for sample diffusivity across the Titan-C18 particles were found responsible
Simon Gane et al.
PloS one, 8(1), e55780-e55780 (2013-02-02)
Whether olfaction recognizes odorants by their shape, their molecular vibrations, or both remains an open and controversial question. A convenient way to address it is to test for odor character differences between deuterated and undeuterated odorant isotopomers, since these have
Manickam Sugumaran et al.
Insect biochemistry and molecular biology, 43(2), 209-218 (2013-01-01)
Arterenone (2-amino-3',4'-dihydroxy acetophenone) is an important hydrolytic product generated from lightly colored sclerotized cuticle that use N-acyldopamine derivatives for crosslinking reactions. It seems to arise from 1,2-dehydro-N-acetyldopamine (dehydro NADA) that has been crosslinked to the cuticular components. However, the mechanism
D Essaid et al.
Journal of pharmaceutical and biomedical analysis, 114, 227-240 (2015-06-24)
Porphyrins are a class of photosensitizers used in photodynamic therapy (PDT). Understanding the interaction of porphyrins with membrane cells components is important in order to improve this therapy. Many analytical methods can be used for this aim. High performance liquid
Martin Gilar et al.
Journal of chromatography. A, 1381, 110-117 (2015-01-22)
Sample introduction in microfluidic liquid chromatography often generates wide zones rather than peaks, especially when a large sample volume (relative to column volume) is injected. Formation of wide injection zones can be further amplified when the sample is dissolved in
Paula V Gonzalez et al.
Journal of medical entomology, 52(6), 1315-1321 (2015-09-10)
Aedes aegypti (L.) (Diptera: Culicidae) is the key vector of three important arboviral diseases: dengue, yellow fever, and chikungunya. Immature stages of this species inhabit human-made containers placed in residential landscapes. In this study, we evaluated a few compounds in
Carolina Aliaga et al.
Journal of fluorescence, 25(4), 979-983 (2015-05-15)
The photophysical behavior of three pyridinium-derived fluorophores, the N-aryl-2,4,6-triphenylpyridinium, the N-aryl-5,6-dihydro-2,4-diphenylbenzo[h]quinolinium and the N-aryl-5,6,8,9-tetrahydro-7-phenyldibenzo[c,h]acridinium perchlorates, was investigated. Comparison of their fluorescence quantum yields led to the preparation of a novel, more sensitive pyridinium-based, TEMPO-attached prefluorescent probe for H-abstraction processes, the
1/3