Results 41 to 50 of about 70,546 (390)

Enumeration of saturated and unsaturated substituted N-heterocycles [PDF]

open access: yesarXiv, 2023
Mathematical and computational approaches in chemistry and biochemistry fill a gap in respect to the analysis of the physicochemical features of compounds and their functionality and provide an overview of known as well as yet unknown, but hypothetically possible structures.
arxiv  

Inhibition of prolyl oligopeptidase with a synthetic unnatural dipeptide [PDF]

open access: yes, 2010
A new inhibitor, containing a linked proline-piperidine structure, for the enzyme prolyl oligopeptidase (POP) has been synthesised and demonstrated to bind covalently with the enzyme at the active site.
Bohno   +41 more
core   +1 more source

Sonogashira/N-acyliminium ion aromatic π-cyclisation processes: access to tetra- and pentacyclic lactams [PDF]

open access: yes, 2008
Application of the Sonogashira reaction of N-alkynylimides with 2-iodophenol or 2-iodo-N-tosylaniline affords 2-(N-alkylimino)-benzofurans and indoles in good yield.
Grigg, R., Sridharan, V., Sykes, D.A.
core   +1 more source

Spiro[pyrrolidine-3, 3´-oxindole] as potent anti-breast cancer compounds: Their design, synthesis, biological evaluation and cellular target identification

open access: yesScientific Reports, 2016
The spiro[pyrrolidine-3, 3´-oxindole] moiety is present as a core in number of alkaloids with substantial biological activities. Here in we report design and synthesis of a library of compounds bearing spiro[pyrrolidine-3, 3´-oxindole] motifs that ...
Santanu Hati   +7 more
semanticscholar   +1 more source

Syn-Ethyl 1-hydroxy-7-methoxy-2,3-dihydro-1H-pyrrolo[3,4-b]quinolone-3-carboxylate HCl Salt

open access: yesMolbank, 2015
This short note describes a one-step synthesis of the title compound from commercially available starting materials and reports its full spectroscopic characterization data.
Marcus Baumann, Ian R. Baxendale
doaj   +1 more source

Synthesis of enantiomeric polyhydroxyalkylpyrrolidines from 1,3-dipolar cycloadducts. Evaluation as inhibitors of a β-galactofuranosidase [PDF]

open access: yes, 2016
Enantiomeric 2,3,4-tris(hydroxyalkyl)-5-phenylpyrrolidines have been synthesized from the major cycloadducts obtained by the 1,3-dipolar cycloaddition of sugar enones with azomethine ylides derived from natural amino acids.
Oliveira Udry, Guillermo Alejandro   +3 more
core   +2 more sources

Cobalt-Catalyzed (Hetero)arylation of Saturated Cyclic Amines with Grignard Reagents

open access: yesMolecules, 2018
(Hetero)aryl substituted saturated cyclic amines are ubiquitous scaffolds in biologically active molecules. Metal-catalyzed cross-couplings between halogeno N-heterocycles and organometallic species are efficient and modular reactions to access these ...
Baptiste Barré   +3 more
doaj   +1 more source

Ethyl 3,4-bis(acetyloxy)-2-(4-methoxyphenyl)pyrrolidine-1-carboxylate

open access: yesIUCrData, 2020
The title pyrrolidine compound, C18H23NO7, is a tetra-substituted species in which the five-membered ring has a twisted conformation with the twist occurring in the C—C bond bearing the adjacent acetyloxy substituents; the Cm—Ca—Ca—Cp torsion angle is ...
Sofia Dallasta Pedroso   +7 more
doaj   +1 more source

The effects of a pyrrolidine functional group on the magnetic properties of N@C60 [PDF]

open access: yes, 2006
A new stable pyrrolidine functionalized fullerene derivative, C69H10N2O2, has been synthesized, purified by high performance liquid chromatography, and characterized by MALDI mass spectrometry, ultraviolet-visible spectroscopy, Fourier transform infrared, 1H and 13C nuclear magnetic resonance. The magnetic properties of the analogous endohedral species
arxiv   +1 more source

Tertiary alkylamines as nucleophiles in substitution reactions at heteroaromatic halide during the synthesis of the highly potent pirinixic acid derivative 2-(4-chloro-6-(2,3-dimethylphenylamino)pyrimidin-2-ylthio)octanoic acid (YS-121) [PDF]

open access: yes, 2011
YS-121 [2-(4-chloro-6-(2,3-dimethylphenylamino)pyrimidin-2-ylthio)octanoic acid] is the result of target-oriented structural derivatization of pirinixic acid.
Gabler, Matthias   +1 more
core   +2 more sources

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