Results 121 to 130 of about 42,748 (282)

Rapid transient absorption and biliary secretion of enantiomeric cholesterol in hamsters

Journal of Lipid Research, 2006
To probe the pathway and specificity of cholesterol absorption, the synthetic enantiomer of cholesterol (ent-cholesterol) and cholesterol were labeled with deuterium, gavaged into hamsters, and measured by negative ion mass spectrometry.
Emily J. Westover, Xiaobo Lin, Terrence E. Riehl, Lina Ma, William F. Stenson, Douglas F. Covey, Richard E. Ostlund, Jr.   +6 more
doaj  

EFFECTS OF STRUCTURE OF PEPTIDE STATIONARY PHASES ON GAS-CHROMATOGRAPHIC SEPARATIONS OF AMINO-ACID ENANTIOMERS.

, 1971
John Corbin, J. E. Rhoad, L. B. Rogers
openalex   +2 more sources

Iridium‐Catalyzed Enantioselective Intramolecular Hydroarylation of Allenes: Formal Synthesis of (+)‐Rhazinilam

Angewandte Chemie, EarlyView.
A highly enantioselective iridium‐catalyzed hydroarylation of allene‐tethered pyrroles and indoles that provides access to relevant heterocyclic systems bearing vinyl‐substituted 3ry or 4ry stereocenters is reported. Its synthetic potential was exemplified with a very short, highly enantioselective formal synthesis of (+)‐Rhazinilam, whereas DFT ...
Andrés Arribas, Alejandro Rey, Martín Calvelo, José L. Mascareñas, Fernando López   +4 more
wiley   +2 more sources

Synthesis of the Enantiomers of 7,8-Dimethoxy-7,8-2-phenyl-1,2,4,5-tetrahydro-3-benzazepine

, 1986
J殲g R. Pfister
openalex   +1 more source

Enantioselective analysis of omeprazole in pharmaceutical formulations by chiral high-performance liquid chromatography and capillary electrophoresis

Journal of the Brazilian Chemical Society, 2004
We developed two sensitive and simple assay procedures based on high- performance liquid chromatography and capillary electrophoresis (CE) for the enantioselective analysis of omeprazole in pharmaceutical formulations.
Bonato Pierina S., Paias Fernanda O.
doaj  

Hemodynamic and Electrophysiologic Effects of Disopyramide Enantiomers in a Canine Blood Superfusion Model

, 1989
Gregory A. Kidwell, John J. Lima, Stephen F. Schaal, William W. Muir   +3 more
openalex   +1 more source

Biosynthese des Rotalgen‐Diterpens Peyssonnosol in Bakterien

Angewandte Chemie, EarlyView.
Zwei Terpensynthasen aus Anaerolineae‐Bakterien katalysieren die Biosynthese von Peyssonnosen‐artigen Diterpenen aus Rotalgen. Ortsgerichtete Mutagenese ermöglichte einen partiellen Funktionswechsel, der zur Bildung zusätzlicher Nebenprodukte führte.
Zhiyong Yin, Zhehui Hu, Kexin Yang, Guihu Lu, Georges B. Tabekoueng, Pingping Wu, Qi Luo, Juan Xu, Bernd Goldfuss, Jeroen S. Dickschat, Guangkai Bian   +10 more
wiley   +1 more source

Light‐Driven Ratchet Mechanism Accelerates Regioselective Metal‐Cation Exchange in a Heterobimetallic Helicate

Angewandte Chemie, EarlyView.
Photoswitchable homo‐ and heterobimetallic helicates form with high diastereo‐ and regioselectivity via single‐step self‐assembly or self‐sorting. White‐light exposure autonomously operates one helicate as a molecular ratchet, promoting the selective formation of an out‐of‐equilibrium structure.
Maximilian J. Notheis, Gregor Schnakenburg, Larissa K. S. von Krbek   +2 more
wiley   +2 more sources

Stereoselective synthesis of (S,E)-6-isopropyl-3,9-dimethyl-5,8-decadienyl acetate, the (S)-enantiomer of the yellow scale pheromone.

, 1981
S. Masuda, Shigefumi Kuwahara, Toshio Suguro, Kenji Mori   +3 more
openalex   +2 more sources

Advancing Sulfinyl Radical Chemistry: An Asymmetric Smiles Rearrangement with Chiral Sulfoxides

Angewandte Chemie, EarlyView.
A visible‐light‐driven, asymmetric sulfinyl‐Smiles rearrangement enables the enantioselective trifunctionalization of chiral sulfoxides via radical addition, 1,5‐aryl migration, and sulfinyl radical interception. By tuning the redox potentials of key components, this cascade forms two C─C and one C─S bond in a single step, yielding enantioenriched ...
Yawen Hu, Till Schreyer, Cristina Nevado
wiley   +2 more sources