Results 111 to 120 of about 14,574 (240)
Development of 2‑Methyl-5-phenylpyrrolidine-Based ST2 Inhibitors for Neuroinflammatory Conditions. [PDF]
Yuan X +13 more
europepmc +1 more source
Direct asymmetric α‐C conjugate addition of aminoacetonitrile enabled by carbonyl/iminium double activation, together with subsequent electrophilic functionalization, offers a one‐pot, two‐step modular strategy for synthesizing chiral α‐quaternary pyrrolines with precise chirality relay and high structural diversity.
Xingdie Yang +6 more
wiley +1 more source
Chiral 3-acyl-2-pyrrolines as strategic hubs toward polycyclic pyrrolidines <i>via</i> enantioselective silver-catalyzed Michael addition-cyclization. [PDF]
Sakai S, Maeda K, Shimizu Y, Sawamura M.
europepmc +1 more source
Oxaziridines: Versatile Reagents in Modern Organic Synthesis
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra +2 more
wiley +1 more source
A Stereoconvergent Annulation in the Synthesis of Lysergic Acid. [PDF]
Firestone ZD, Harbit RC, Smith JM.
europepmc +1 more source
2D and 3D Nets by Self‐Assembly of Carbosilane Functionalized Polyphilic Liquid Crystals
In the shown compounds, the growing volume of the carbosilane side‐groups modifies the self‐assembly in liquid crystalline phases ranging from a square via a pentagonal to a hexagonal honeycomb and finally to a 3D (10,3)‐a double net. The structures are discussed in relation to inorganic solid‐state materials and the concept of “mesoatoms”.
Christian Anders +3 more
wiley +1 more source
Reversible protonation gates coumarin‐based overcrowded‐alkene molecular motors by dynamically reshaping their conjugation topology. This strategy enables efficient, near‐quantitative unidirectional photoisomerization from blue–green to red‐shifted visible light up to 600 nm, while preserving motor function and allowing orthogonal light, heat, and acid/
Jinghao Wang +2 more
wiley +2 more sources
Fluorinated Aminopiperidones as Non-Glutarimide Thalidomide Analogs: Stereodivergent Synthesis and Validation. [PDF]
Adamlje B +11 more
europepmc +1 more source
S‐Adenosylmethionine (SAM) hydrolases counter increased SAM epimerisation in thermophilic archaea
S‐Adenosyl‐l‐methionine (SAM) is a vital enzyme cofactor. Epimerisation at the sulfonium centre of biologically active (SS,SCα)‐SAM is driven by heat, yielding biologically inactive (RS,SCα)‐SAM. Here, two novel archaeal SAM hydrolases from the thermophilic Sulfolobus acidocaldarius and the halophilic Haloferax volcanii are shown to cleave (RS,SCα)‐SAM.
Agnes Bartels +7 more
wiley +1 more source
Achieving selective (sp3)C–H hydroxylation can streamline the synthesis of complex organic molecules. Biocatalysis presents an opportunity to realize this transformation, however, identifying useful enzymes that enable synthetic strategies can be a challenge due to limitations in enzyme substrate scope.
Gonzalo J. Villegas Rodríguez +5 more
wiley +2 more sources

