Results 11 to 20 of about 171,840 (265)

Synthesis of Amino Acid Analogues of 5H-Dibenz[b,f]azepine and Evaluation of their Radical Scavenging Activity

open access: yesE-Journal of Chemistry, 2009
A method for the synthesis of tyrosine, phenyl alanine, hydroxy proline and threonine free amino acid analogues of 5H-dibenz[b,f]azepine is proposed. 5H-dibenz[b,f]azepine was prepared by known method.
H. Vijay Kumar   +2 more
doaj   +1 more source

A Validated 1H NMR Method for the Quantitation of 5-Hydroxymethyl-2(5H)-Furanone, a Valuable Chemical Intermediate, In a Dichloromethane Extract of Helleborus lividus subsp: Corsicus Leaves from Corsica

open access: yesJournal of Analytical Methods in Chemistry, 2022
An experimental procedure using 1H NMR was developed and validated to quantify 5-hydroxymethyl-2(5H)-furanone, a valuable chemical synthon ((S)-enantiomer), in a dichloromethane extract of Helleborus lividus subsp. corsicus leaves.
Thomas Maroselli   +2 more
doaj   +1 more source

Ab initio calculations of 5H resonant states

open access: yesPhysics Letters B, 2019
By solving the 5-body Faddeev-Yakubovsky equations in configuration space with realistic nuclear Hamiltonians we have studied the resonant states of 5H isotope.
R. Lazauskas, E. Hiyama, J. Carbonell
doaj   +1 more source

Synthesis and Cytotoxic Activity of Some 3-Benzyl-5-Arylidenefuran-2(5H)-ones

open access: yesMolecules, 2007
3-Benzyl-furan-2(5H)-one (2a) and 3-(4-bromobenzyl)-furan-2(5H)-one (2b) were treated with TBDMSOTf and converted into the corresponding tert-butyldimethyl-silylfuran ethers.
Manoel Odorico Moraes   +7 more
doaj   +1 more source

Synthesis of Novel, Potentially Biologically Active Dibenzosuberone Derivatives

open access: yesMolecules, 2005
Novel representatives of the important group of biologically active dibenzosuberone derivatives were prepared: 3,7-dibromo-5-(dimethylaminoethyl- oxyimino)-10,11-dihydro-5H-dibenzo[a,d]cyclohepta-1,4-diene (1), 3,7-dibromo-5-(3- dimethylaminopropylidene)-
Vladimir Vinkovic   +3 more
doaj   +1 more source

Sydnone derivatives as synthons for novel bismesoionic compounds.Synthesis of 3-(2-sulphido-1,3,4-thiadiazolium-4-carbonylphenyl) sydnones and 4-[4-(2-sulphido-1,3,4-thiadiazolium) benzoyl]-1,3,4-thiadiazolium-2-thiolates from 3-[4/3-(hydrazinocarbonyl)phenyl]sydnones, and their antimicrobial and antitubercular activities [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
Some hitherto unknown novel bismesoionic compounds, 3-[4/3-(5H/substituted- 2-sulphido-1,3,4-thiadiazolium-4-carbonyl)phenyl]sydnones 5a–d and 6a-d and 4-[4-(5H/substituted-2-sulphido-1,3,4-thiadiazolium)benzoyl]-5H/substituted-1,3,4-thiadiazolium-2 ...
JOHNSON J. JOGUL, BHARATI V. BADAMI
doaj  

3-(2-Chlorophenyl)-4-hydroxyfuran-2(5H)-one

open access: yesActa Crystallographica Section E, 2011
In the title molecule, C10H7ClO3, the butyrolactone core, a furan-2(5H)-one, forms a dihedral angle of 59.21 (5)° with the benzene ring.
Zhu-Ping Xiao   +4 more
doaj   +1 more source

Antitumor Activity of a 5-Hydroxy-1H-Pyrrol-2-(5H)-One-Based Synthetic Small Molecule In Vitro and In Vivo. [PDF]

open access: yesPLoS ONE, 2015
Alternative chemo-reagents are in great demand because chemotherapy resistance is one of the major challenges in current cancer treatment. 5-hydoxy-1H-pyrrol-2-(5H)-one is an important N-heterocyclic scaffold that is present in natural products and ...
Yunyun Geng   +9 more
doaj   +1 more source

Micromagnetic Simulation of Increased Coercivity of (Sm, Zr)(Co, Fe, Cu)z Permanent Magnets

open access: yesCrystals, 2023
The finite element micromagnetic simulation is used to study the role of complex composition of 2:17R-cell boundaries in the realization of magnetization reversal processes of (Sm, Zr)(Co, Cu, Fe)z alloys intended for high-energy permanent magnets.
Mark V. Zheleznyi   +9 more
doaj   +1 more source

Objective short sleep duration is associated with the activity of the hypothalamic-pituitary-adrenal axis in insomnia

open access: yesArquivos de Neuro-Psiquiatria, 2015
Objective To evaluate the association between objective short sleep duration in patients with insomnia and changes in blood parameters related to hypothalamic-pituitary-adrenal (HPA) axis activity.Method A cross-sectional pilot study was conducted in 30 ...
Carolina D’Aurea   +5 more
doaj   +1 more source

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