Results 41 to 50 of about 132,748 (328)

Analysis of the flavonoid component of bioactive New Zealand mānuka (Leptospermum scoparium) honey and the isolation, characterisation and synthesis of an unusual pyrrole [PDF]

, 2013
The flavonoid components of New Zealand mānuka (Leptospermum scoparium) honey have been quantified in a series of 31 honeys of varying non-peroxide antibacterial activity to clarify discrepancies between previous studies reported in the literature. Total
Alber, Dagmar G., Chan, Ching Wan, Deadman, Benjamin Jade, Harry, Elizabeth, Manley-Harris, Merilyn, Wilkins, Alistair L.   +5 more
core   +2 more sources

The first direct synthesis of β-unsubstituted meso-decamethylcalix[5]pyrrole

Beilstein Journal of Organic Chemistry, 2009
The first direct synthesis of β-unsubstituted meso-decamethylcalix[5]pyrrole from pyrrole and acetone, with moderate yield, is described. The results showed that a bismuth salt was necessary to obtain calix[5]pyrrole, with the best results obtained using
Luis Chacón-García, Lizbeth Chávez, Denisse R. Cacho, Josue Altamirano-Hernández   +3 more
doaj   +1 more source

Synthesis of N-perfluoroalkyl-3,4-disubstituted pyrroles by rhodium-catalyzed transannulation of N-fluoroalkyl-1,2,3-triazoles with terminal alkynes

Beilstein Journal of Organic Chemistry, 2021
The rhodium-catalyzed transannulation of N-perfluoroalkyl-1,2,3-triazoles with aromatic and aliphatic terminal alkynes under microwave heating conditions afforded N-perfluoroalkyl-3,4-disubstituted pyrroles (major products) and N-fluoroalkyl-2,4 ...
Olga Bakhanovich, Viktor Khutorianskyi, Vladimir Motornov, Petr Beier   +3 more
doaj   +1 more source

Rapid Assembly of Pyrrole-Ligated 1,3,4-Oxadiazoles and Excellent Antibacterial Activity of Iodophenol Substituents

Molecules, 2023
Pyrrole-ligated 1,3,4-oxadiazole is a very important pharmacophore which exhibits broad therapeutic effects such as anti-tuberculosis, anti-epileptic, anti-HIV, anti-cancer, anti-inflammatory, antioxidant, and antibacterial activities. A one-pot Maillard
Hyein Kim, Lina Gu, Huisu Yeo, Umji Choi, Chang-Ro Lee, Haiyang Yu, Sangho Koo   +6 more
doaj   +1 more source

Regioselective Formation of α-Vinylpyrroles from the Ruthenium-Catalyzed Coupling Reaction of Pyrroles and Terminal Alkynes Involving C–H Bond Activation [PDF]

, 2010
The cationic ruthenium catalyst Ru3(CO)12/NH4PF6 was found to be highly effective for the intermolecular coupling reaction of pyrroles and terminal alkynes to give gem-selective α-vinylpyrroles.
Gao, Ruili, Yi, Chae S.
core   +2 more sources

Functionalization of Single and Multi-Walled Carbon Nanotubes with Polypropylene Glycol Decorated Pyrrole for the Development of Doxorubicin Nano-Conveyors for Cancer Drug Delivery

Nanomaterials, 2020
A recently reported functionalization of single and multi-walled carbon nanotubes, based on a cycloaddition reaction between carbon nanotubes and a pyrrole derived compound, was exploited for the formation of a doxorubicin (DOX) stacked drug delivery ...
Chiara Pennetta, Giuseppe Floresta, Adriana Carol Eleonora Graziano, Venera Cardile, Lucia Rubino, Maurizio Galimberti, Antonio Rescifina, Vincenzina Barbera   +7 more
doaj   +1 more source

Rational Design of a Low-Data Regime of Pyrrole Antioxidants for Radical Scavenging Activities Using Quantum Chemical Descriptors and QSAR with the GA-MLR and ANN Concepts

Molecules, 2023
A series of pyrrole derivatives and their antioxidant scavenging activities toward the superoxide anion (O2•−), hydroxyl radical (•OH), and 1,1-diphenyl-2-picryl-hydrazyl (DPPH•) served as the training data sets of a quantitative structure–activity ...
Wanting Xie, Sopon Wiriyarattanakul, Thanyada Rungrotmongkol, Liyi Shi, Amphawan Wiriyarattanakul, Phornphimon Maitarad   +5 more
doaj   +1 more source

Crystal structure of bis-[4-(1H-pyrrol-1-yl)phen-yl] ferrocene-1,1'-di-carboxyl-ate: a potential chemotherapeutic drug. [PDF]

, 2015
The title iron(II) complex, [Fe(C16H12NO2)2], crystallizes in the ortho-rhom-bic space group Pbca with the Fe(2+) cation positioned on an inversion center.
Meléndez, Enrique, Pérez, Wanda I, Rheingold, Arnold L   +2 more
core   +3 more sources

Cyclooxygenase-2 inhibitors. 1,5-diarylpyrrol-3-acetic esters with enhanced inhibitory activity toward cyclooxygenase-2 and improved cyclooxygenase-2/cyclooxygenase-1 selectivity. [PDF]

, 2007
he important role of cyclooxygenase-2 (COX-2) in the pathogenesis of inflammation and side effect limitations of current COX-2 inhibitor drugs illustrates a need for the design of new compounds based on alternative structural templates.
ANZELLOTTI P, ANZINI M., BIAVA M, BOTTA M, CAPPELLI A, FORLI S, GHELARDINI C, MAKOVEC F, MANETTI, F, PATRIGNANI P, PERGOLA, CARLO, POCE G, PORRETTA GC, ROSSI, ANTONIETTA, ROVINI M, SAUTEBIN, LIDIA, SUPINO S, VIVOLI E   +17 more
core   +1 more source

THEORETICAL CALCULATIONS ABOUT THE THERMAL STABILITY AND DETONATION CHARACTER OF NITRAMINO-SUBSTITUTED PYRROLE

Química Nova
A series of nitramino-derivatives of pyrrole were designed through introducing the nitramino group into pyrrole ring to look for high-energy-density compounds.
Butong Li, Lulin Li, Yu Wang
doaj   +1 more source