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Showing 1-30 of 215 results for "570672" within Papers
Jane Hubert et al.
Journal of natural products, 78(7), 1609-1617 (2015-06-24)
The aqueous-ethanolic extract of Tephrosia purpurea seeds is currently exploited in the cosmetic industry as a natural ingredient of skin lotions. The aim of this study was to chemically characterize this ingredient by combining centrifugal partition extraction (CPE) as a
Timothy M Shoup et al.
Molecular imaging and biology : MIB : the official publication of the Academy of Molecular Imaging, 17(2), 257-263 (2014-10-03)
Fatty acid amide hydrolase (FAAH), a catabolic enzyme which regulates lipid transmitters in the endocannabinoid system, is an avidly sought therapeutic and positron emission tomography (PET) imaging target for studies involving addiction and neurological disorders. We report the synthesis of
Apurba K Bhattacharjee et al.
European journal of medicinal chemistry, 90, 209-220 (2014-12-03)
Utilizing our previously reported in silico pharmacophore model for reactivation efficacy of oximes, we present here a discovery of twelve new non-oxime reactivators of diisopropylfluorophosphate (DFP)-inhibited acetylcholinesterase (AChE) obtained through virtual screening of an in-house compound database. Rate constant (kr)
Simon J de Veer et al.
The Biochemical journal, 469(2), 243-253 (2015-05-20)
Laskowski inhibitors regulate serine proteases by an intriguing mode of action that involves deceiving the protease into synthesizing a peptide bond. Studies exploring naturally occurring Laskowski inhibitors have uncovered several structural features that convey the inhibitor's resistance to hydrolysis and
Na Guo et al.
Molecules (Basel, Switzerland), 20(5), 9393-9404 (2015-05-27)
In order to improve the antitumor activity and water solubility of 10-hydroxycamptothecin (HCPT), a series of novel HCPT conjugates were designed and synthesized by conjugating polyethylene glycol (PEG) to the 10-hydroxyl group of HCPT via a valine spacer. The in
J Aerts et al.
Mediators of inflammation, 2015, 510679-510679 (2015-09-10)
A hydroxypyrone-based matrix metalloproteinase (MMP) inhibitor was synthesized and assayed for its inhibitory capacity towards a panel of ten different MMPs. The compound exhibited selective inhibition towards MMP-12. The effects of inhibition of MMP-12 on endotoxemia and inflammation-induced blood-cerebrospinal fluid
Xiaofei Chen et al.
Macromolecular bioscience, 15(11), 1563-1570 (2015-07-15)
Herein, a novel kind of intelligent nanogels have been designed, which can spatiotemporally control the release of drug (doxorubicin) and photosensitizers (porphyrins) to combine chemo-therapy and photodynamic therapy. Further, the fluorescing properties of porphyrins make it possible to be used
Barbara Parrino et al.
European journal of medicinal chemistry, 94, 367-377 (2015-03-18)
Three new ring systems, pyrido[2',3':3,4]pyrrolo[1,2-a]quinoxalines, pyrido[3',2':3,4]pyrrolo[1,2-a]quinoxalines and pyrido[2',3':5,6]pyrazino[2,1-a]isoindoles, were synthesized through an aza-substitution on the already active isoindolo-quinoxaline system and in particular in the position 7 or 4 of the isoindole moiety and in position 5 of the quinoxaline portion.
Deblina Sarkar et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 153, 397-401 (2015-09-09)
A highly sensitive and selective benzimidazole based colourimetric chemosensor (HL) for the efficient detection of Ni(2+) has been reported. The synthesized chemosensor HL is highly efficient in detecting Ni(2+) over other metal ions that commonly coexist with Ni(2+) in physiological
Fen-Fen Zhang et al.
Carbohydrate research, 402, 81-86 (2014-12-17)
The chemical structure studies on an important related substance of voglibose have been carried out using NMR spectroscopy and single crystal X-ray crystallography. For the structure identification study, hydrochloride monohydrate of this compound was isolated and purified. Its molecular structure
Sandip Mandal et al.
Dalton transactions (Cambridge, England : 2003), 44(29), 13186-13195 (2015-06-26)
3',6'-Bis(diethylamino)-2-(pyridin-2-ylmethyl)spiro[isoindoline-1,9'-xanthen]-3-one () was synthesized for the selective fluorescence and colorimetric recognition of Hg(2+) at pH 6.0. In addition, was useful for imaging Hg(2+) in fish kidney and liver tissues using a fluorescence microscope. Spirolactam ring opening of for Hg(2+) recognition
Mykhaylo S Frasinyuk et al.
Organic & biomolecular chemistry, 13(4), 1053-1067 (2014-11-22)
The aminomethylation of hydroxylated isoflavones with 2-aminoethanol, 3-amino-1-propanol, 4-amino-1-butanol, and 5-amino-1-pentanol in the presence of excess formaldehyde led principally to 9-(2-hydroalkyl)-9,10-dihydro-4H,8H-chromeno[8,7-e][1,3]-oxazin-4-ones 4 and/or the tautomeric 7-hydroxy-8-(1,3-oxazepan-3-ylmethyl)-4H-chromen-4-ones 5. The ratio of these tautomers was dependent on solvent polarity, electronic effects of
Jing-Kun Yan et al.
International journal of biological macromolecules, 72, 333-340 (2014-09-07)
In this study, a new non-toxic, biodegradable, biocompatible and water-soluble carboxylic curdlan bearing the dissociable COOH group in 100% purity, which was prepared by 4-acetamido-TEMPO-mediated oxidation, was hydrophobically modified by deoxycholic acid (DOCA) to attain novel amphiphilic curdlan derivatives (CCDs)
Sudipta Chatterjee et al.
Carbohydrate polymers, 123, 432-442 (2015-04-07)
Fish oil-loaded microcapsules were prepared from oil-in-water emulsions using N-stearoyl O-butylglyceryl chitosan as shell material. The emulsions were prepared by both membrane and ultrasonic emulsification processes under variable conditions to examine the effect of the emulsification process and encapsulation conditions
Tsubasa Oyama et al.
Journal of pharmaceutical and biomedical analysis, 116, 71-79 (2015-07-15)
A new pre-column derivatization reagent with a 6-methoxy-4-quinolone (6-MOQ) moiety for amino acid analysis, 2,5-dioxopyrrolidin-1-yl(2-(6-methoxy-4-oxoquinolin-1(4H)-yl)ethyl) carbonate (6-MOQ-EtOCOOSu), was designed and synthesized. 6-MOQ is a thermo/photostable fluorophore with a high proton-affinity site and sensitive determination could be carried out by a
Jing-Can Qin et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 152, 352-357 (2015-08-02)
Two Schiff-base fluorescent sensors have been synthesized, which both can act as fluorescent probes for Al(3+), upon addition of Al(3+), they exhibit a large fluorescence enhancement which might be attributed to the formation of 1:1 ligand-Al complexes which inhibit photoinduced
Priya P Netalkar et al.
European journal of medicinal chemistry, 79, 47-56 (2014-04-12)
Air and moisture stable coordination compounds of late first row transition metals, viz. Co(II), Ni(II), Cu(II) and Zn(II), with a newly designed ligand, 2-(2-benzo[d]thiazol-2-yl)hydrazono)propan-1-ol (LH), were prepared and successfully characterized using various spectro-analytical techniques. The molecular structures of the ligand
Andrei Ponta et al.
Journal of drug targeting, 22(7), 619-628 (2014-04-29)
Nanoparticles are widely used as drug carriers for controlled, tumor-targeted delivery of various anticancer agents that have biopharmaceutical limitations such as water solubility and tissue permeability. Growing evidence suggests that nanoparticles not only reduce toxic side effects of anticancer drugs
Alfonso Maresca et al.
Bioorganic & medicinal chemistry, 23(22), 7181-7188 (2015-10-27)
A series of phenolic acid esters incorporating caffeic, ferulic, and p-coumaric acid, and benzyl, m/p-hydroxyphenethyl- as well as p-hydroxy-phenethoxy-phenethyl moieties were investigated for their inhibitory effects against the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). Many of the mammalian isozymes of
C F Massaro et al.
Fitoterapia, 95, 247-257 (2014-04-08)
Propolis of Australian stingless bees (Tetragonula carbonaria, Meliponini) originating from Corymbia torelliana (Myrtaceae) fruit resins was tested for its antimicrobial activities as well as its flavonoid contents. This study aimed at the isolation, structural elucidation and antibacterial testing of flavanones
Scott R Pollack et al.
Journal of labelled compounds & radiopharmaceuticals, 58(11-12), 433-441 (2015-09-19)
Omeprazole (Prilosec®) is a selective and irreversible proton pump inhibitor used to treat various medical conditions related to the production of excess stomach acids. It functions by suppressing secretion of those acids. Radiolabeled compounds are commonly employed in the drug
Tamara D Payero et al.
Microbial cell factories, 14, 114-114 (2015-08-08)
Streptomyces filipinensis is the industrial producer of filipin, a pentaene macrolide, archetype of non-glycosylated polyenes, and widely used for the detection and the quantitation of cholesterol in biological membranes and as a tool for the diagnosis of Niemann-Pick type C
Tatsuhiko Someya et al.
Nucleic acids research, 43(14), 6665-6676 (2015-07-02)
Site-specific labeling of long-chain RNAs with desired molecular probes is an imperative technique to facilitate studies of functional RNA molecules. By genetic alphabet expansion using an artificial third base pair, called an unnatural base pair, we present a post-transcriptional modification
Ilkoo Noh et al.
Biomaterials, 53, 763-774 (2015-04-22)
Multi-drug delivery focuses on different signaling pathways in cancer cells that have synergistic anti-proliferative effects. In this study, we developed multi-prodrug nanocarriers (MPDNCs) consisting of poly (l-lysine)-carboxylate PTX (PLL-PTX) and hyaluronic acid-conjugated GEM (HA-GEM) for CD44-targeted synergistic biliary cancer therapy.
Silvana Cartaxo da Costa Urtiga et al.
Carbohydrate polymers, 250, 116929-116929 (2020-10-15)
Xylan extracted from corn cobs was used to produce mesalamine-loaded xylan microparticles (XMP5-ASA) by cross-linking polymerization using a non-hazardous cross-linking agent. The microparticles were characterized by thermal analysis (DSC/TG), X-ray diffraction (XRD), Infrared spectroscopy (FTIR-ATR) and scanning electron microscopy (SEM).
Luís Novo et al.
Molecular pharmaceutics, 12(1), 150-161 (2014-11-11)
The applicability of small interfering RNA (siRNA) in future therapies depends on the availability of safe and efficient carrier systems. Ideally, siRNA delivery requires a system that is stable in the circulation but upon specific uptake into target cells can
Katalin Devaine-Pressing et al.
Dalton transactions (Cambridge, England : 2003), 44(27), 12365-12375 (2015-03-26)
Magnesium compounds of tetradentate amino-bis(phenolato) ligands, Mg[L1] (1) and Mg[L2] (2) (where [L1] = 2-pyridyl-N,N-bis(2-methylene-4-methoxy-6-tert-butylphenolato), and [L2] = dimethylaminoethylamino-N,N-bis(2-methylene-4-methyl-6-tert-butylphenolato)) were prepared. The proligands, H2[L1] and H2[L2] were reacted with di(n-butyl)magnesium in toluene to give the desired compounds in high yields.
Mostafa M Ghorab et al.
Acta pharmaceutica (Zagreb, Croatia), 64(4), 419-431 (2014-12-23)
A novel series of thiophenes having biologically active sulfonamide 2-11, 3-methylisoxazole 12, 4-methoxybenzo[d] thiazole 13, quinoline 14, 15, benzoylphenylamino 16, and anthracene-9,10-dione 17 moieties were prepared. Structures of the newly synthesized compounds were established by elemental analysis and spectral data.
Erik Selander et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(20), 6395-6400 (2015-04-29)
Interactions among microscopic planktonic organisms underpin the functioning of open ocean ecosystems. With few exceptions, these organisms lack advanced eyes and thus rely largely on chemical sensing to perceive their surroundings. However, few of the signaling molecules involved in interactions
Sibing Wang et al.
Chirality, 27(8), 543-550 (2015-05-23)
Single-handed twisted titania tubular nanoribbons were prepared through sol-gel transcription using a pair of enantiomers. Handedness was controlled by that of the template. The obtained samples were characterized using field-emission electron microscopy, transmission electron microscopy, diffuse reflectance circular dichroism (DRCD)
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