Results 81 to 90 of about 2,171 (198)
A series of 5‐nitroimidazole‐1,2,3‐triazole hybrids was synthesised and evaluated for antitrypanosomatid activity to assess their potential as treatments against leishmaniasis and trypanosomiasis. No notable in vitro activity against Leishmania was detected.
Liandi Ferreira +4 more
wiley +1 more source
Preparation of Hydantoins by Catalytic Oxidative Carbonylation of α-Amino Amides
Hydantoins can be synthesized from the corresponding amino amides employing oxidative catalytic carbonylation using W(CO)6 as the catalyst, I2 as the oxidant, CO as the carbonyl source, and DBU as base.
Lisa McElwee-White (1453750) +2 more
core +1 more source
Acute generalized exanthematous pustulosis related to phenytoin administration. Case report
The occurrence of acute generalized exanthematous pustulosis adverse reactions to medication administration is becoming more frequent. This article reports the case of a 78-year-old woman who attended the clinic with generalized papules and pustules on ...
Juan Raul Castro-Ayarza, Eduardo Fierro
doaj
Hydantoins are a class of compounds renowned for their diverse medical applications, particularly in neurology. Phenytoin (Dilantin) is one of the most well-known hydantoins, primarily used to stabilize neuronal membranes and prevent the spread of ...
Jana Tchekalarova +2 more
doaj +1 more source
Selective reductions of substituted hydantoins
Nine N-3-substituted hydantoins (2) have been shown to undergo LiAlH4 reduction (tetrahydrofuran, room temperature, 2d) to give 4-hydroxy-2-imidazolidinones (21) in good yields.
Alvarado, Sergio Javier Cortes, 1950-
core
International audienceThe eco-friendly preparation of 5- and 5,5-disubstituted hydantoins from various amino ester hydrochlorides and potassium cyanate in a planetary ball-mill is described.
Colacino, Evelina +6 more
core +1 more source
New route for 1-substituted hydantoins [PDF]
Alkytation reactions on hydantoins (I) lead smoothly to 3-alkyl derivatives; more rigorous conditions allow further substitution at position 1 provided the N1-H group is activated by an aryl group or an ethylenic bond attached to the adjacent C52,a.
Corral, Renée Antonio +1 more
core
Multidrug resistant (MDR) bacteria are an increasing health problem with the shortage of new active antibiotic agents. Among effective mechanisms that contribute to the spread of MDR Gram-negative bacteria are drug efflux pumps that expel clinically ...
Ewa eOtrębska-Machaj +10 more
doaj +1 more source
From Diketopiperazines to Hydantoins: An Unprecedented Rearrangement
International audienceBis-Boc-activated 2,5-diketopiperazines on reaction with potassium hydroxide or sodium methoxide in dry tetrahydrofuran led to Boc-protected hydantoins through an unprecedented ring contraction.
Chaubet, Guilhem +4 more
core +1 more source
Considering the pharmaceutical importance of hydantoins, a set of 25 derivatives of phenytoin, nirvanol and 5-methyl-5-phenylhydantoin, the lipophilicities of which were gradually increased by the introduction of different alkyl, cycloalkyl and alkenyl ...
Trišović Nemanja +2 more
doaj +1 more source

