Results 211 to 220 of about 17,768 (339)

Antioxidants Inhibit Indoleamine 2,3-Dioxygenase in IFN-γ-Activated Human Macrophages: Posttranslational Regulation by Pyrrolidine Dithiocarbamate [PDF]

, 2001
Shane R. Thomas, Houta Salahifar, Ryuichi Mashima, Nicholas H. Hunt, Des R. Richardson, Roland Stocker   +5 more
openalex   +1 more source

Diastereodivergent Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Ylides and β-Fluoroalkyl Vinylsulfones: Low Copper(II) Catalyst Loading and Theoretical Studies [PDF]

, 2019
Cheng, Feng, Huang, Yi Yong, Kalita, Subarna Jyoti, Schneider, Uwe, Shibata, Norio, Yang, Xing, Zhao, Yan, Zhao, Zhen Ni   +7 more
core   +1 more source

Synthesis of Rhamnose‐Modified Lewis‐X‐Containing Saponins

European Journal of Organic Chemistry, Accepted Article.
We report the synthesis of betulinic acid and echinocystic acid saponins featuring an unnatural analogue of the Lewis‐X trisaccharide, in which the l‐fucose residue is replaced by l‐rhamnose. These triterpenoid saponins were designed as negative controls for dendritic cell‐specific intercellular adhesion molecule‐3‐grabbing non‐integrin (DC‐SIGN ...
Oscar Javier Gamboa Marin, Nitish Verma, Maude Cloutier, Charles Gauthier   +3 more
wiley   +1 more source

Substituted Spiro[pyrrolidine-5,2'-tricyclo[3.3.1.13,7]decane] Derivatives

, 1989
Vassil St. Georgiev, Christpher G. Acker, G. B. MULLEN, Lesley A. Radov, Laura A. Trusso, Dietgard K. Kamp   +5 more
openalex   +1 more source

Green‐light Cerium Photocatalysis enabled by Pyridine N‐oxide Ligands

European Journal of Organic Chemistry, Accepted Article.
Abstract: We report pyridine N‐oxides as neutral ligands in cerium photocatalysis. By using those neutral ligands, photoactive Ce(IV)‐species are generated, that show an extensive bathochromic shift compared to previously employed cerium‐based complexes. This allows the effective utilization of green light in the redox‐neutral CH‐hydrazination of small
Nicolas Müller, Jessica Stahl, Julia Stoiber, Burkhard König   +3 more
wiley   +1 more source

Stereoselective Chemoenzymatic Cascades for the Synthesis of Densely Functionalized Iminosugars. [PDF]

J Am Chem Soc
Swanson CRB, Gourbeyre L, Ford GJ, Clapés P, Flitsch SL.   +4 more
europepmc   +1 more source

Heterocyclic Spiro Compounds. III. Synthesis of [2R*,11bR*]-9.10-Dimethoxy-1,3,4,6,7,11b-hexahydrobenzo[a]quinolizine-2-spiro-3'-pyrrolidines and [2R*,11bR*]-9,10-Dimethoxy-1,3,4,6,7,11b-hexahydrobenzo[a]quinolizine-2-spiro-3'-pyrrolidin-2'-ones

, 1989
Mónica Söllhuber, J. Carlos Menéndez
openalex   +1 more source

Efficient stereoselective syntheses of piperidine, pyrrolidine, and indolizidine alkaloids [PDF]

, 2001
Dieter Enders, Christoph Thiebes
openalex   +1 more source

Electrochemical Hydrogenation of N‐Heterocycles and Related Substrates: A Mini‐Review

Electrochemical Science Advances, EarlyView.
ABSTRACT Catalytic hydrogenation refers to the (often) metal‐mediated addition of dihydrogen (H2) equivalents to unsaturated compounds to form new element‐hydrogen bonds. This conceptually simple reaction is ubiquitous in the production of a vast number of essential chemicals.
Esteban Garcia‐Torres, David E. Herbert   +1 more
wiley   +1 more source

B(C₆F₅)₃-Catalyzed Dehydrogenation of Pyrrolidines to Form Pyrroles. [PDF]

ACS Catal
Alvarez-Montoya A, Gillions JP, Winfrey L, Hawker RR, Singh K, Ortu F, Fu Y, Li Y, Pulis AP.   +8 more
europepmc   +1 more source