Stereochemical Studies on a New Ciramadol Analogue by NMR-Spectroscopy [PDF]
The absol. configuration of a Ciramadol analogue obtained from (-)-menthone is established by 'H-NMR-. simulated NMR-, COSY-90-, and NOEmeasurements. The final compound 2-(a-1 -pyrrolidino)benzy 1-4-isopropyl- 1 -methyl-cyclohexan-3-one (4b), e.g..
Akgün, H. +4 more
core
Design, synthesis and biological evaluation of 1,3-dihydroxyxanthone derivatives: Effective agents against acetylcholinesterase [PDF]
The present work concerns the rational design and development of new inhibitors of acetylcholinesterase (AChE) based on the privileged xanthone scaffold.
Accordino, Sebastian Roberto +5 more
core +1 more source
Azomethine Ylides—Versatile Synthons for Pyrrolidinyl-Heterocyclic Compounds
Azomethine ylides are nitrogen-based three-atom components commonly used in [3+2]-cycloaddition reactions with various unsaturated 2π-electron components.
Siva S. Panda +3 more
doaj +1 more source
Phosphoramidite Gold(I)-Catalyzed Diastereo- and Enantioselective Synthesis of 3,4-Substituted Pyrrolidines [PDF]
In this article the utility of phosphoramidite ligands in enantioselective AuI catalysis was explored in the development of highly diastereo- and enantioselective AuI-catalyzed cycloadditions of allenenes.
Benitez, Diego +4 more
core +3 more sources
In‐situ‐Konstruktion von Imidazopyridinium‐Fluoreszenzlabels für Biokonjugationen
Durch Chromophor‐Engineering von Isochinolinaldehyden entstehen TICT‐basierte fluorogene Farbstoffe für die In Situ Markierung unterschiedlicher (Bio‐)Moleküle mit großen Stokes‐Verschiebungen, die mit der Zellbildgebung kompatibel sind. ZUSAMMENFASSUNG Einfache, effiziente Transformationen fluorogenen Charakters, die unter biokompatiblen Bedingungen ...
Dongchen Du +7 more
wiley +1 more source
In the title solvate, C35H25ClN2O3·0.5CH3OH, the conformation of the central 1-methylpyrrolidine ring is best described as an envelope with the N atom as the flap.
J. M. Joseph +2 more
doaj +1 more source
Intramolecular Azide to Alkene Cycloadditions for the Construction of Pyrrolobenzodiazepines and Azetidino-Benzodiazepines [PDF]
The coupling of proline- and azetidinone-substituted alkenes to 2-azidobenzoic and 2-azidobenzenesulfonic acid gives precursors that undergo intramolecular azide to alkene 1,3-dipolar cycloadditions to give imine-, triazoline- or aziridine-containing ...
Antonow +9 more
core +2 more sources
Ionization effects on the partitioning behavior of food and beverage aroma compounds between aqueous phases and air and organic matrices [PDF]
Aroma compounds in the Flavornet database were screened for ionizable functional groups such as carboxylic acids, aliphatic and aromatic amines, phenols, alcohols, and thiols.
Kaya Forest, Sierra Rayne
core +2 more sources
In Situ Construction of Imidazopyridinium Fluorescent Labels for Bioconjugation
Chromophore engineering of isoquinoline aldehydes generates TICT‐based fluorogenic dyes for in situ labeling of diverse (bio)molecules with large Stokes shifts compatible with cell imaging. ABSTRACT Simple, efficient transformations of fluorogenic nature that proceed under biocompatible conditions without the formation of byproducts are of high ...
Dongchen Du +7 more
wiley +1 more source
The title compound, C35H27ClN4O3, crystallized with two independent molecules (A and B) in the asymmetric unit. In both molecules, the pyran and pyridine rings adopt envelope and chair conformations, respectively.
S. Syed Abuthahir +4 more
doaj +1 more source

