Results 41 to 50 of about 36,653 (344)

Computational exploration of the chemical structure space of possible reverse tricarboxylic acid cycle constituents [PDF]

, 2017
The reverse tricarboxylic acid (rTCA) cycle has been explored from various standpoints as an idealized primordial metabolic cycle. Its simplicity and apparent ubiquity in diverse organisms across the tree of life have been used to argue for its antiquity
Fabienne d'Arripe-Longueville, Lisa Chaba, Stéphanie Scoffier-Mériaux, Vanessa Lentillon-Kaestner   +3 more
core   +7 more sources

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

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

Ueber stereoisomere Diazoamidoverbindungen [PDF]

Berichte der deutschen chemischen Gesellschaft, 1894
n ...
openaire   +3 more sources

Cyclo19,31[D-Cys19]-uPA19-31 is a potent competitive antagonist of the interaction of urokinase-type plasminogen activator with its receptor (CD87) [PDF]

, 2001
Urokinase-type plasminogen activator (uPA) represents a central molecule in pericellular proteolysis and is implicated in a variety of physiological and pathophysiological processes such as tissue remodelling, wound healing, tumor invasion, and ...
Arroyo de Prada, Nuria, Bürgle, Markus, Degitz, Klaus, Kellermann, Josef, Kessler, Horst, Magdolen, Viktor, Riemer, Christoph, Schmiedeberg, Niko, Schmitt, Manfred, Schroeck, Florian, Wilhelm, Olaf G.   +10 more
core   +1 more source

Escape from Flatland: Stereoselective Synthesis of Hexa‐aryl Borazines and their sp2‐Based 3D Architectures

Angewandte Chemie, EarlyView.
Short text: The first synthesis of hexa‐arylborazines with ortho‐substituted aryl groups expands their three‐dimensional structure. By selecting the appropriate ortho‐substituent, the ArLi adds to the BN‐core in a controlled manner, guiding the stereochemical outcome of the three‐substitution reaction.
Vivek Chandrakant Wakchaure, María Mercedes Lorenzo‐García, Francesco Fasano, Martina Crosta, Nicolas Biot, Nicola Demitri, Pradip Kumar Mondal, Benjamin D. Ward, Davide Bonifazi   +8 more
wiley   +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

Development of an Organoautocatalyzed Double σ‐Bond C(sp2)‐N Transamination Metathesis Reaction

Angewandte Chemie, EarlyView.
Organoautocatalyzed transamination metathesis of cyclic tertiary amines is disclosed as a high‐yielding, scalable reaction that proceeds under mild, catalyst‐free conditions. It operates via a multi‐step domino reaction mechanism, where an in situ‐formed pyrrolidinium salt functions as a HBD organoautocatalyst.
Volker Klein, Florian Schuster, Jonas Amthor, Harald Maid, Prabhakar Bijalwan, Fahmi Himo, Stefano Santoro, Svetlana B. Tsogoeva   +7 more
wiley   +2 more sources

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

Stereocontrol in Conformationally Stable C(sp2)─C(sp3) Atropisomers

Angewandte Chemie, EarlyView.
Building in our expertize in the synthesis of trans‐dihydrobenzofurans via organocatalyzed domino Michael/O‐cyclization between β‐naphthols and nitroalkenes, we developed an efficient strategy to access a new family of atropisomers bearing a conformationally stable C(sp2)─C(sp3) bond and two stereogenic centers through simple and highly ...
Antoine Domain, Guishun Bai, Juan‐Carlos Castillo, Hassane Moussa Abdraman, Stéphane Humbel, Michel Giorgi, Jean‐Valère Naubron, Sara Chentouf, Jean Rodriguez, Xiaoze Bao, Damien Bonne   +10 more
wiley   +2 more sources