Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Randy H. Weiss"'
Autor:
Daryle H. Busch, William L. Neumann, Randy H. Weiss, Patrick L. Lennon, Dennis P. Riley, Delong Zhang
Publikováno v:
Inorganic Chemistry. 37:956-963
Iron(III) complexes with four pentaaza macrocylic ligands, [Fe(L)Cl2](PF6), have been synthesized, where the ligand L is 1,4,7,10,13-pentaazacyclopentadecane (L1), 2R,3R,8S,9S-dicyclohexano-1,4,7,10,13-pentaazacyclopentadecane (L2), 2R,3R,8R,9R -dicy
Publikováno v:
Journal of the American Chemical Society. 119:6522-6528
Two new isomeric bis(trans-fused cyclohexano) substituted 1,4,7,10,13-pentaazacyclopentadecane ligands and their Mn(II) complexes, 3 and 4, have been synthesized, and their activity as superoxide dismutase (SOD) catalysts has been studied. Complex 3
Synthesis of conformationally tailored pentaazacyclopentadecanes. Preorganizing peptide cyclizations
Autor:
William L. Neumann, Randy H. Weiss, Kirby R. Sample, Dennis P. Riley, Karl W. Aston, Gary W. Franklin
Publikováno v:
Tetrahedron Letters. 38:779-782
A general method for the preparation of rigidified pentaazamacrocycles using trans-(1R,2R)-diaminocyclohexane as the conformational controller element. High macrocyclization yields have been obtained by strategic placement of the diaminocyclohexane g
Publikováno v:
Journal of Biological Chemistry. 271:26149-26156
In a previous study (Hardy et al. (1994) J. Biol. Chem. 269, 18535-18540), we observed that the manganese-based superoxide dismutase mimetic Mn(II)-dichloro(1,4,7,10,13-pentaazacyclopentadecane) (MnPAM) inhibited neutrophil-mediated cell injury in vi
Autor:
Randy H. Weiss, Kirby R. Sample, William L. Neumann, Witold Szulbinski, † Chaur-Sun Ling, Patrick J. Lennon, Dennis P. Riley, Willie J. Rivers, Jeng-Jong Shieh, Karl W. Aston, Hayat Rahman, and Daryle H. Busch, Susan L. Henke
Publikováno v:
Inorganic Chemistry. 35:5213-5231
Superoxide radical anion has been demonstrated to be a mediator of many disease states, including inflammatory, autoimmune, and cancerous diseases. As a consequence, we have developed a program to design, synthesize, and test synthetic low-molecular
Publikováno v:
Journal of Biological Chemistry. 269:18535-18540
In this study, we evaluated the ability of low molecular weight manganese-based superoxide dismutase mimetics to attenuate neutrophil-mediated oxygen radical damage to human aortic endothelial cells in vitro. Human neutrophils, when exposed to tumor
Autor:
Susan L. Henke, William L. Neumann, Randy H. Weiss, Kirby R. Sample, Anil S. Modak, Karl W. Aston, Dennis P. Riley
Publikováno v:
Tetrahedron Letters. 35:3687-3690
A general synthetic method for the preparation of carbon-functionalized polyazamacrocycles from the corresponding cyclic peptides is described.
Autor:
Medora M. Hardy, Karl W. Aston, A. G. Flickinger, Una S. Ryan, Willie J. Rivers, Randy H. Weiss, Dennis P. Riley
Publikováno v:
Journal of Biological Chemistry. 268:23049-23054
By stopped-flow kinetic analysis, we have directly evaluated the superoxide dismutase (SOD) activity of a number of organic nitroxides and iron- and manganese-based complexes that have been attributed with having SOD activity based upon competition e
Autor:
Barry L. Parnas, Randy H. Weiss, Richard W. Gross, Stanley L. Hazen, Daniel P. Getman, Karl W. Aston, Patrick J. Lennon, Lori A. Zupan
Publikováno v:
Journal of Medicinal Chemistry. 36:95-100
Haloenol lactones are potent mechanism-based inhibitors of a novel class of calcium-independent phospholipases A2 which have been implicated as the enzymic mediators of membrane dysfunction during myocardial ischemia (Hazen, S. L.; et al. J. Biol. Ch
Autor:
Nigam P. Rath, Karl W. Aston, Kirby R. Sample, William L. Neumann, Randy H. Weiss, Gary W. Franklin, Dennis P. Riley
Publikováno v:
ChemInform. 28
The synthesis of a bis-cyclohexyl-fused pentaazamacrocycle via head-to-tail pseudopeptide cyclization chemistry is described. The bis-cyclohexyl-fused cyclic pseudopeptide 11 displays intramolecular hydrogen bonding which has been characterized by va