Artículos de revistas: Recent submissions
Now showing items 4081-4100 of 4968
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(Elsevier B.V., 2011-09-01)A comparison of the ozone primary reference standard photometer serial number 45 (SRP45) against the National Institute of Standards and Technology (NIST) instruments, serial number 0 (SRP0) and 2 (SRP2), has been performed ...
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(Nature Publishing Group, 2005-06-27)1 Effects of derivatives of coclaurine (C), which mimic the ‘eastern’ or the nonquaternary halves of the alkaloids tetrandrine or d-tubocurarine, respectively, both of which are inhibitors of nicotinic acetylcholine ...
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(John Wiley & Sons, Ltd., 1997-10-26)The acute toxicities of the global methanol extract of Solanum ligustrinum (Solanaceae) and the crude steroidal glycoalkaloids mixture were determined. The antipyretic, hypothermic and antiinflammatory activities of ...
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(Elsevier, 2009-08-19)Meroditerpenoids, 2-[20(E)-30,70,110,150-tetramethylhexadec-2-en-10-yl]-6-methyl-1,4-benzohydroquinone diacetate and 40-chlorostypotriol triacetate, along with eight known compounds isolated from the dichloromethane ...
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(Elsevier Ltd., 2006-02-28)A series of tricyclic hydroquinones, incorporating a carbonyl group in the ortho position relative to the phenol function, were tested as inhibitors of oxygen uptake against the TA3 mouse carcinoma cell line and its ...
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(Georg Thieme, 2005-04-13)5tructure-activity analysis of 21 aporphine derivatives was performed by examining their affinities for c10ned human alA. alB and alD adrenoceptors (AR) using membranes prepared from rat -1 fibroblasts stably expressing ...
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(Sociedad Chilena de Química, 2006)Benzyltetrahydroisoquinoline (BTHIQ) molecules are able to adopt widely differing conformations that depend on the presence or absence of N-substituents. To assess the possible role of BTHIQ conformation on the affinity ...
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Simplified Tetrandrine Congeners as Possible Antihypertensive Agents with a Dual Mechanism of Action (American Chemical Society and American Society of Pharmacognosy, 2003-02-07)A series of O- and/or N-substituted derivatives of (()-coclaurine (1a) were synthesized as simplified structural mimics of the antihypertensive alkaloid tetrandrine (2) and assayed for binding to brain cortical sites ...
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(Taylor & Francis Ltd, 2003-03-10)(6)-4-Methylthioamphetamine (MTA) was resolved into its enantiomers, and a series of N-alkyl derivatives of the parent compound, as well as its a-ethyl analogue, were prepared. The monoamine oxidase (MAO) inhibitory properties ...
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(Taylor & Francis Ltd, 2001-05-04)Monoamine oxidase-A (MAO-A) (amiflamine (AMF) and 4-methylthioamphetamine (MTA)) and MAO-B (Ldeprenyl) inhibitors were found to be cytotoxic in a concentration-dependent manner for RCHTcells derived from adult rat ...
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(International Society for Neurochemistry,, 2001-06-06)Effects of cytisine (cy), 3-bromocytisine (3-Br-cy), 5-bromocytisine (5-Br-cy) and 3,5-dibromocytisine (3,5-diBr-cy) on human (h) a7-, a4b2- and a4b4 nicotinic acetylcholine (nACh) receptors, expressed in Xenopus oocytes ...
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(American Chemical Society, 2011-11-29)The bond Fukui function is introduced and tested as a new reactivity index capable of predicting the evolution of bond breaking and formation processes during an organic reaction involving π conjugated systems. As an ...
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CRYSTAL STRUCTURE OF 5,6,8,12b-TETRAHYDRODIOXOLO[4,5-g]ISOINDOLO[1,2-a]ISOQUINOLIN-8-ONE (C17H13NO3) (Sociedad Chilena de Química, 2009-07-03)The title compound was prepared by cyclization of 2-(3,4-methylenedioxyphenyl)ethyl-3-hydroxyisoindolin-1-one in concentrated hydrochloric acid. The compound crystallizes in the orthorhombic space group Pca21 (No. 29) with ...
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(American Chemical Society, 2011-05-31)When tested in solar cells, ruthenium polypyridinic dyes with extended π systems show an enhanced lightharvesting capacity that is not necessarily reflected by a high (collected electrons)/(absorbed photons) ratio. ...
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(Elsevier Ltd., 2007-05-22)Abstract—Four enantiomerically pure (S)-4-alkylthioamphetamine derivatives were evaluated as monoamine oxidase (MAO) inhibitors using the human and rat isoforms of the enzyme. Molecular dockings were performed in order ...
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(Pergamon Press Ltd., 1981-09-24)If)-Chilenine (3), the first isoindolobenzazepine alkaloid, has been fou& in Berberis enpetrifolia Lam. IBerberidaceae).
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(Springer, 2012)The new solid solutions AgPbSb1−xBixS3 were prepared by solid state reactions. The phases were characterized by powder X-ray diffractions (XRD), scanning electron microscopy, and thermal analysis. The XRD patterns of ...
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(Instituto Químico de Sudáfrica, 1982-01-13)A family of upper bounds for the ground-state second-order energy, derived from the Perturbation Theory, has been obtained. The bounds have been evaluated for the static electric dipole polarizability of the hydrogen atom.
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(Editorial Società Farmaceutica, 1982-10)
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(Sociedad Chilena de Química, 2003-09-22)We present a physically based treatment of the molecular rotational partition function for the case of the interaction of a macromolecular receptor with a small biologically active molecule. This leads to the proposal ...
