نتایج جستجو برای: biologically active compounds

تعداد نتایج: 663691  

2012
Urmila Berar

Chalcones are a class of α,β-unsaturated carbonyl compounds that form the central core for a variety of naturally occurring biologically active compounds. They exhibit tremendous potential to act as a pharmacological agent. Besides their various pharmacological activities, chalcones have been explored for different optical applications including second harmonic generation materials in non-linea...

2009
ZITA PUTEROVÁ ALŽBETA KRUTOŠÍKOVÁ DANIEL VÉGH

Highly substituted thiophene derivatives are important heterocycles found in numerous biologically active compounds. Title compounds are attractive derivatives because their applications in pharmaceuticals, agriculture and pesticides. They exhibit antimicrobial activity against various Gram(+) and Gram(-) bacteria and fungi. Many of these molecules act as allosteric enhancers of A1-adenosine re...

Journal: :Journal of the American Chemical Society 2011
Tianning Diao Shannon S Stahl

α,β-Unsaturated carbonyl compounds are versatile intermediates in the synthesis of pharmaceuticals and biologically active compounds. Here, we report the discovery and application of Pd(DMSO)(2)(TFA)(2) as a catalyst for direct dehydrogenation of cyclohexanones and other cyclic ketones to the corresponding enones, using O(2) as the oxidant. The substrate scope includes heterocyclic ketones and ...

2005
Oren Bogin

Venomous creatures have a sophisticated mechanism for prey capture which includes a vast array of biologically-active compounds, such as enzymes, proteins, peptides and small molecular weight compounds. These substances target an immense number of receptors and membrane proteins with high affinity, selectivity and potency, and can serve as potential drugs or scaffolds for drug design. Oren Bogi...

Journal: :iranian journal of pharmaceutical research 0
strahinja kovačević department of applied and engineering chemistry, faculty of technology, university of novi sad lidija r. jevrić department of applied and engineering chemistry, faculty of technology, university of novi sad sanja o. podunavac kuzmanović department of applied and engineering chemistry, faculty of technology, university of novi sad eva s. lončar department of applied and engineering chemistry, faculty of technology, university of novi sad

retention behavior of molecules mostly depends on their chemical structure. retention data of biologically active molecules could be an indirect relationship between their structure and biological or pharmacological activity, since the molecular structure affects their behavior in all pharmacokinetic stages. in the present paper, retention parameters (rm0) of biologically active 1,2-o-isopropyl...

2018
Steve Peigneur Jan Tytgat

Venoms from marine and terrestrial animals (cone snails, scorpions, spiders, snakes, centipedes, cnidarian, etc.) can be seen as an untapped cocktail of biologically active compounds, being increasingly recognized as a new emerging source of peptide-based therapeutics.

2012
K. TABATABAEIAN A. KHORSHIDI A. DADASHI

Synthesis of various potential biologically active compounds from the reaction of quinoline and vanillin based aldehydes and ethereal dialdehydes with indoles in the presence of RuCl3.nH2O as a homogeneous catalyst at room temperature is described.

2010
Daniela Rossi Anna Carnevale Baraglia Massimo Serra Ornella Azzolina

A microwave-assisted HWE olefination process of readily accessible aryl-alkyl ketones has been developed to provide a rapid access to (Z)-3,3-trisubstituted-α,βunsaturated methyl esters, key building blocks for the synthesis of biologically active compounds.

Journal: :Chemical communications 2008
Cezary Samojłowicz Michał Bieniek Andrzej Zarecki Renat Kadyrov Karol Grela

Aromatic fluorinated hydrocarbons, used as solvents for olefin metathesis reactions, catalysed by standard commercially available Ru precatalysts, allow substantially higher yields to be obtained, especially of challenging substrates, including natural and biologically active compounds.

Journal: : 2022

The article includes a review of available literature sources on toxicology research and the use indole its derivatives. Indole - benzo[β]pyrrole, with molecular weight 117.18, these are colorless crystals that have weak smell naphthalene. Under various conditions chem-ical interaction, it easily forms many biologically active compounds

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