Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ladislaus L. Torday"'
Autor:
Ladislaus L. Torday, Graciela N. Zamarbide, Mario R. Estrada, M.A. Zamora, Francisco Tomás Vert, Imre G. Csizmadia, Ricardo D. Enriz
Publikováno v:
Journal of Molecular Structure: THEOCHEM. :599-608
Captopril can interact regio- and stereo-specifically with various functional groups present at the active site of angiotensin converting enzyme (ACE). Since no X-ray structure of ACE is available, Captopril, as an ACE inhibitor may be used as a ‘m
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 637:11-26
Model compounds of α-, β-, γ-, and δ-tocopherol and Tocotrienol, as well as their sulphur and selenium congeners, were subjected to density functional analysis. The mono methyl substitution either stabilized or destabilized the ring structures to
Autor:
Luca F. Pisterzi, Botond Penke, Donna M. Gasparro, Ladislaus L. Torday, Julius Gy. Papp, David R.P. Almeida, András Varró
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 631:251-270
Carvedilol is cardiovascular drug of proven efficacy. It is believed that carvedilol exerts cardio-protective effects by acting as a mild uncoupler of mitochondrial oxidative phosphorylation, thereby protecting mitochondria from oxidative stress and
Autor:
Imre G. Csizmadia, Julius Gy. Papp, Botond Penke, Donna M. Gasparro, Luca F. Pisterzi, András Varró, David R.P. Almeida, Ladislaus L. Torday
Publikováno v:
The Journal of Physical Chemistry A. 107:5594-5610
Chirality and activity relationships are paramount to pharmaceutical design and synthesis. Generally, point chirality (enantiomeric R and S configurations) is emphasized most in molecules and drugs; however, axis chirality (present when structures ad
Autor:
Janice S.W. Lam, Julius Gy. Papp, Ladislaus L. Torday, Gregory A. Chass, Joseph C.P Koo, András Varró
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 620:231-255
The sidechain conformational potential energy hypersurfaces (PEHS) for the γL, βL, αL, and αD backbone conformations of N-acetyl- l -aspartate-N′-methylamide were generated. Of the 81 possible conformers initially expected for the aspartate res
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 620:93-106
The free radical scavenging mechanism, leading to a quinodal structure via an oxidative ring opening is exothermic. However, the ionic oxidative ring opening is endothermic. Consequently, the ionic reductive ring closing must be exothermic. This lead
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 619:1-20
A standardized numbering system is elaborated upon for the efficient generation of input data for molecular computations on phospholipids and triglycerides. The advantages of such a comprehensive system in terms of the extraction of structural data a
Autor:
Salvatore J. Salpietro, Joseph C.P Koo, Gregory A. Chass, Julius Gy. Papp, Ladislaus L. Torday, Janice S.W. Lam, Ricardo D. Enriz, András Varró
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 619:143-194
In this study, potential energy hypersurfaces have been generated and analyzed for each of the nine possible backbone (BB) conformations for both the endo and exo forms of N-acetyl- l -aspartic acid N′-methylamide. Ab initio calculations were carri
Autor:
Imre G. Csizmadia, Gregory A. Chass, Luca F. Pisterzi, Ladislaus L. Torday, David R.P. Almeida, András Varró, Julius Gy. Papp
Publikováno v:
Chemical Physics Letters. 365:542-551
5-Hydroxytryptamine (serotonin) was geometry optimized at the B3YP/6-31G(d) level of theory to determine the energetically most favourable conformations of the aromatic hydroxyl group and the protonated ethylamine side chain. The hydroxyl group was f
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 594:161-172
Tetralin, chroman as well as its' S and Se containing congeners were subjected to ab initio (RHF/3-21G and RHF/6-31G(d)) and DFT (B3LYP/6-31G(d)) computation. Molecular geometries and the activation energies for ring inversions were determined with f