Results 31 to 40 of about 70,546 (390)

Synthesis and biological evaluation of pyrrolidine-based T-type calcium channel inhibitors for the treatment of neuropathic pain

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2018
The treatment of neuropathic pain is one of the urgent unmet medical needs and T-type calcium channels are promising therapeutic targets for neuropathic pain.
Hak Kyun Yang   +9 more
doaj   +1 more source

Crystal structure of ethyl 1′,1′′-dimethyl-2′′,3-dioxo-3H-dispiro[benzo[b]thiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C23H22N2O4S, the pyrrolidine ring has an envelope conformation with the spiro C atom, shared with the indoline ring system, as the flap. The mean planes of the benzothiophene and indoline ring systems are inclined to the mean plane
M. P. Savithri   +4 more
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of 4′-(2-chlorophenyl)-1′-methyl-3′′-phenyl-7′′,8′′-dihydro-5′′H-dispiro[indoline-3,2′-pyrrolidine-3′,6′′-isoquinoline]-2,5′′-dione

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
In the title dispiro compound, C32H26ClN3O2, the cyclohexanone ring of the isoquinoline unit has a distorted envelope conformation, with the methylene C atom adjacent to the spiro C atom as the flap.
R. Vishnupriya   +5 more
doaj   +1 more source

Diastereodivergent synthesis of chiral tetrahydropyrrolodiazepinediones via a one-pot intramolecular aza-Michael/lactamization sequence [PDF]

open access: yes, 2018
A modular and diastereodivergent synthesis of tetrahydro-1H-pyrrolo[1,2d]diazepine-(2,5)-diones is presented. The tetrahydropyrrolodiazepinedione scaffold is obtained via a base-mediated three-step isomerization/tandem cyclization of amino acid-coupled ...
Brown, Lauren E.   +3 more
core   +1 more source

Crystal structure of 4′-(2-methoxyquinolin-3-yl)-1′-methyldispiro[indan-2,2′-pyrrolidine-3′,3′′-indoline]-1,3,2′′-trione

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C30H23N3O4, the central 1-methylpyrrolidine ring adopts a twist conformation on the N—CH2 bond. The pyrrolidin-2-one ring of the indolin-2-one ring system also has a twist conformation on the C—C bond involving the spiro C atom and
Sadasivam Mathusalini   +4 more
doaj   +1 more source

Drug Repurposing for COVID-19 via Knowledge Graph Completion [PDF]

open access: yes, 2020
Objective: To discover candidate drugs to repurpose for COVID-19 using literature-derived knowledge and knowledge graph completion methods. Methods: We propose a novel, integrative, and neural network-based literature-based discovery (LBD) approach to identify drug candidates from both PubMed and COVID-19-focused research literature.
arxiv   +1 more source

Ethyl 1-benzyl-1,2,3,3a,4,10b-hexa-hydro-pyrrolo-[2',3':3,4]pyrrolo-[1,2-a]benzimidazole-2-carboxyl-ate. [PDF]

open access: yes, 2011
The title mol-ecule, C(22)H(23)N(3)O(2), was obtained via an intra-molecular cyclo-addition of an azomethine ylide and an alkene tethered by a benzimidazole unit. The benzoimidazole unit is essentially planar, with an r.m.s.
Fettinger, James C   +2 more
core   +2 more sources

Stereoselective Synthesis of Cyclobutanes by Contraction of Pyrrolidines [PDF]

open access: yesJournal of the American Chemical Society, 2021
Here we report a contractive synthesis of multisubstituted cyclobutanes containing multiple stereocenters from readily accessible pyrrolidines using iodonitrene chemistry. Mediated by a nitrogen extrusion process, the stereospecific synthesis of cyclobutanes involves a radical pathway.
Chunngai Hui   +5 more
openaire   +4 more sources

A Photocatalytic Method for the Degradation of Pyrrolidine in Water [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2000
A method for the degradation of pyrrolidine in water is described. The method relaies on the photocatalytic degradation of pyrrolidine to CO2 and NH3 by UV irradiation and using titanium dixide semiconductor as a photocatalyst.
Mohammad Hossein Habibi   +1 more
doaj  

Regioselective ring opening of aziridine for synthesizing azaheterocycle

open access: yesFrontiers in Chemistry, 2023
Aziridine had different regioselective ring openings depending on the functional group of its alkyl substituent. In the case of the alkyl group bearing γ-ketone at the C2 substituent of aziridine, the ring opening by the hydroxy nucleophile from H2O ...
Nikhil Srivastava, Hyun-Joon Ha
doaj   +1 more source

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