Results 21 to 30 of about 13,203 (151)

Analysis of cis-isomer-enriched dihydroquercetin sample by 1D and 2D NMR spectroscopy

Разработка и регистрация лекарственных средств
Introduction. The structure of dihydroquercetin (DHQ) is characterized by two chiral centers at positions 2 and 3 of the benzopyran cycle, resulting in possible diastereomers: trans- and cis-isomers.
R. P. Terekhov, A. Taldaev, E. V. Bocharov, D. I. Pankov, A. D. Savina, I. A. Selivanova   +5 more
doaj   +1 more source

3-(3-Azabicyclo[2, 2, 1]heptan-2-yl)-1,2,4-oxadiazoles as Novel Potent DPP-4 Inhibitors to Treat T2DM

Pharmaceuticals
Background: Type 2 diabetes mellitus (T2DM) is a prevalent metabolic disease with global implications, necessitating effective management strategies.
Tatiana V. Zinevich, Ivan O. Maslov, Olga G. Kirichenko, Sergey V. Shorshnev, Maxim A. Gureev, Fedor M. Dolgushin, Yuri B. Porozov, Vladimir M. Trukhan   +7 more
doaj   +1 more source

Hirshfeld Surface Analysis and Energy Framework for Crystals of Quinazoline Methylidene Bridged Compounds

Proceedings, 2020
The crystal structures of 4-(3,4-dimethoxyphenylethylamino)-methylidene-2,3,4,10-tetrahydro-1H-pyrido[2,1-b]-quinazolin-10-one (1) and 4-(3,4-methylene-dioxyphenylethylamino)-methylidene-2,3,4,10-tetrahydro-1H-pyrido[2,1-b]-quina-zolin-10-one ...
Akmaljon Tojiboev, Sherzod Zhurakulov, Ulli Englert, Ruimin Wang, Irmgard Kalf, Valentina Vinogradova, Kambarali Turgunov, Bakhodir Tashkhodjaev   +7 more
doaj   +1 more source

Reversible Parahydrogen Induced Hyperpolarization of 15N in Unmodified Amino Acids Unraveled at High Magnetic Field

Advanced Science, 2023
Amino acids (AAs) and ammonia are metabolic markers essential for nitrogen metabolism and cell regulation in both plants and humans. NMR provides interesting opportunities to investigate these metabolic pathways, yet lacks sensitivity, especially in case
Ewoud Vaneeckhaute, Jean‐Max Tyburn, James G. Kempf, Johan A. Martens, Eric Breynaert   +4 more
doaj   +1 more source

Stereoisomere Phenylbrommilchsäuren [PDF]

Berichte der deutschen chemischen Gesellschaft, 1899
n ...
Erlenmeyer, E., Moebes, A.
openaire   +2 more sources

Scientific Opinion on Flavouring Group Evaluation 10, Revision 2 (FGE.10Rev2): Aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical groups 9, 13 and 30

EFSA Journal, 2011
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to evaluate 61 flavouring substances in the Flavouring Group Evaluation 10, Revision 2, using the Procedure in Commission ...
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Host–guest interactions in nor-seco-cucurbit[10]uril: novel guest-dependent molecular recognition and stereoisomerism

Beilstein Journal of Organic Chemistry, 2019
The unique monomer and excimer fluorescence emissions of pyrene were first exploited as distinctly photophysical signals to identify the possible diastereomers of guests within nor-seco-cucurbit[10]uril (NS-CB[10]) cavities.
Xiaodong Zhang, Wei Wu, Zhu Tao, Xin-Long Ni   +3 more
doaj   +1 more source

Side-by-side comparison of recombinant human glutathione peroxidases identifies overlapping substrate specificities for soluble hydroperoxides

Redox Biology, 2023
Five out of eight human glutathione peroxidases (GPXs) are selenoproteins, representing proteins that contain selenium as part of the amino acid selenocysteine. The GPXs are important for reducing hydroperoxides in a glutathione-consuming manner and thus
Maria Schwarz, Alina Löser, Qing Cheng, Mareike Wichmann-Costaganna, Patrick Schädel, Oliver Werz, Elias SJ. Arnér, Anna P. Kipp   +7 more
doaj   +1 more source

Taming T-REX: a canonical language for geometry-aware generative design of transition-metal complexes [PDF]

Digital Discovery
Canonical string representations have transformed organic cheminformatics, yet transition-metal complexes (TMCs) lack an equivalent that captures coordination geometry, stereochemistry, and donor topology.
Ilia Kevlishvili, Devmin Dorabawila
doaj   +1 more source

Scientific Opinion on Flavouring Group Evaluation 82, Revision 1 (FGE.82Rev1): Consideration of Epoxides evaluated by the JECFA (65th meeting) [PDF]

EFSA Journal, 2014
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to consider evaluations of flavouring substances assessed since 2000 by the Joint FAO/WHO Expert Committee on Food Additives
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source