Results 91 to 100 of about 26,944 (259)

7-epi-griffonilide, a new lactone from Bauhinia pentandra: complete 1H and 13C chemical shift assignments

Anais da Academia Brasileira de Ciências
A new lactone, 7-epi-griffonilide (1), and six known compounds, 2, 3a - 3c, 4a and 4b, were isolated from the leaves of Bauhinia pentandra (Fabaceae). The structures elucidation of 1 and 2 were based on detailed 2D NMR techniques and spectral comparison ...
MACIA C.S. DE ALMEIDA, LUCIANA G.S. SOUZA, DANIELE A. FERREIRA, FRANCISCO C.L. PINTO, DÉBORA R. DE OLIVEIRA, GILVANDETE M.P. SANTIAGO, FRANCISCO J.Q. MONTE, RAIMUNDO BRAZ-FILHO, TELMA L.G. DE LEMOS   +8 more
doaj   +1 more source

Purification, Fluorescent Labeling, and Detyrosination of Mammalian Cell Tubulin for Biochemical Assays

Cytoskeleton, EarlyView.
ABSTRACT Microtubules play essential roles in numerous cellular processes. All microtubules are built from the protein tubulin, yet individual microtubules can differ spatially and temporally due to their tubulin isotype composition and post‐translational modifications (PTMs).
Ezekiel C. Thomas, Yang Yue, Morgan L. Pimm, Takashi Hotta, Ryoma Ohi, Kristen J. Verhey   +5 more
wiley   +1 more source

Clinical Characterization of Enzyme and Transporter Precipitants to Evaluate Drug–Drug Interactions for Orforglipron, a Small Molecule Glucagon‐Like Peptide‐1 Receptor Agonist

Clinical Pharmacology &Therapeutics, EarlyView.
Orforglipron is an orally administered, small‐molecule glucagon‐like peptide‐1 receptor agonist in clinical development for the treatment of type 2 diabetes and obesity. Orforglipron is a substrate of CYP3A4, organic anion transporting polypeptides (OATPs) 1B/1B3, and P‐glycoprotein (P‐gp); however, precipitants commonly used to define these mechanisms
Bridget L. Morse, David E. Coutant, Xiaosu Ma, Sohini Raha, Keerthan Aithal, Clare Nicoll, Luc R. A. Rougée, Shobha Bhattachar   +7 more
wiley   +1 more source

Non‐Invasive Estimation of Systemic Drug Exposure Using Exhaled Breath Metabolomics in Humans: A Translational Proof‐of‐Concept Study

Clinical Pharmacology &Therapeutics, EarlyView.
Accurate assessment of systemic drug exposure in humans remains challenging, as conventional approaches rely on intermittent blood sampling and laboratory‐based assays that are invasive and provide limited temporal resolution. Exhaled breath contains volatile and semi‐volatile compounds arising from drug metabolism and downstream biological processes ...
Kai Fricke, Diego M. Baur, Kapil Dev Singh, Felix Schmidt, Kathrin Müsch, Noriane A. Sievi, Marco Di Donato, Anton Schmick, Jonas Herth, Silvia Ulrich, Pablo Sinues, Marian Galovic, Malcolm Kohler   +12 more
wiley   +1 more source

Constituintes químicos de Vernonia scorpioides (Lam) Pers. (Asteraceae) Chemical constituents of Vernonia scorpioides (Lam) Pers. (Asteraceae)

Química Nova, 2013
The chemical investigation of hexane and ethanol extracts from the aerial parts of Vernonia scorpioides resulted in the isolation and characterization of a new polyacetylene lactone, rel-4-dihydro-4β-hydroxy-5a-octa-2,4,6-triynyl-furan-2-(5H)-one ...
Adalva Lopes Machado, Fabiana Martins Aragão, Paulo N. Bandeira, Hélcio Silva dos Santos, Maria Rose Jane R. Albuquerque, Otília Deusdênia L. Pessoa, Edilberto R. Silveira, Edson Paula Nunes, Raimundo Braz-Filho   +8 more
doaj  

Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley   +1 more source

Investigations Into the Metabolism and Elimination of Tesofensine in Human Urine

Drug Testing and Analysis, EarlyView.
This study investigated tesofensine metabolism and urinary elimination after a single 483 μg intake via a dietary supplement. In six volunteers, urine was collected up to 659 h. LC‐HRMS/MS identified four tentative metabolites; maximum urinary concentrations reached 4 ng/mL within 4–48 h.
O. Krug, A. Thomas, M. Thevis
wiley   +1 more source

Fluorinated and B‐Vinylated Tris(pyridyl)borate in Copper(I) Coordination Chemistry

European Journal of Inorganic Chemistry, EarlyView.
Coordinatively flexible tris(pyridyl)borate stabilizes copper coordination complexes, including those with ethylene and carbon monoxide. Fluorinated tris(pyridyl)borate with a vinyl substituent on boron was synthesized and comprehensively characterized, expanding the diversity and functional versatility of the poly(pyridyl)borate ligand family.
Deepika V. Karade, Mukundam Vanga, Xiuxiu Sun, H. V. Rasika Dias   +3 more
wiley   +1 more source

Synthesis of the Core Tetracycle of the Spirobiflavonoid Daphnodorin C

European Journal of Organic Chemistry, EarlyView.
Core spirotetracycle of daphnodorin C: Oxidative ring contraction of benzofuro[3,2‐b]chromenones affords novel 2,3′‐spirobi[benzofuran]diones, rather than the isomeric spiroketals. The first synthesis of the spirobi[benzofuran]dione core structure of the spirobiflavonoid daphnodorin C is described.
Lukas Heemann, Peter G. Jones, Thomas Lindel   +2 more
wiley   +1 more source

Flavouring Group Evaluation 80 (FGE.80) ‐ Consideration of alicyclic, alicyclic‐fused and aromatic‐fused ring lactones evaluated by JECFA (61st meeting) structurally related to a aromatic lactone evaluated by EFSA in FGE.27 (2008) ‐ Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (AFC)

EFSA Journal, 2008
European Food Safety Authority (EFSA)
doaj   +1 more source