Results 31 to 40 of about 3,541 (213)

Hydantoins: Synthesis, properties and anticonvulsant activity [PDF]

open access: yesHemijska Industrija, 2009
Hydantoin is a five-membered cyclic ureide that is present in numerous biologically active compounds including antiarrhytmics, anticonvulsants and antitumor agents. This paper describes different ways of synthesis of hydantoin-derivatives, their physical
Trišović Nemanja P.   +2 more
doaj   +1 more source

Acute Hepatic Porphyrias: Review and Recent Progress. [PDF]

open access: yes, 2019
The acute hepatic porphyrias (AHPs) are a group of four inherited diseases of heme biosynthesis that present with episodic, acute neurovisceral symptoms.
Andant   +40 more
core   +1 more source

Pulsed Fe Electro-Oxidation for Catalytic Synthesis of Hydantoin Derivatives

open access: yesInternational Journal of Electrochemical Science, 2016
This paper presents an original and practical organic electrochemical/chemical (EC/C) synthesis to prepare hydantoin derivatives from N-Alkyl-piperidin-4-ones.
S. Santiago-Ruiz   +3 more
doaj   +1 more source

Synthesis, structure and biological properties of active spirohydantoin derivatives [PDF]

open access: yesHemijska Industrija, 2016
Spirohidantoins represent an pharmacologically important class of heterocycles since many derivatives have been recognized that display interesting activities against a wide range of biological targets.
Lazić Anita M.   +4 more
doaj   +1 more source

Biologically Oriented Hybrids of Indole and Hydantoin Derivatives

open access: yesMolecules, 2023
Indoles and hydantoins are important heterocycles scaffolds which present in numerous bioactive compounds which possess various biological activities. Moreover, they are essential building blocks in organic synthesis, particularly for the preparation of ...
Konstantin A. Kochetkov   +2 more
doaj   +1 more source

Immunological Abnormalities and Hydantoins [PDF]

open access: yesBMJ, 1972
Various immunological features were measured in 20 patients with epilepsy who had received prolonged treatment with hydantoins. Immunoglobulin A (IgA) was shown to be absent or low in five patients, beta(1)C/A was low in 10 patients. Five patients showed negative reactions to skin tests, and two could not be sensitized to dinitrochlorobenzene.
P J, Grob, G E, Herold
openaire   +2 more sources

Complementary regioselectivity in the synthesis of iminohydantoins: remarkable effect of amide substitution on the cyclization [PDF]

open access: yes, 2013
Complementary regioselective synthesis of iminohydantoins from isocyanoacetamides controlled by the substituent on the amide group has been described.
García Valverde, María   +5 more
core   +1 more source

Lipophilicity assessment of some 5,5-disubstituted hydantoins by the means of reversed phase liquid chromatography [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
The retention of some 5,5-disubstituted hydantoins was investigated by reversed phase high performance thin-layer chromatography (RP HPTLC) and reversed phase high-pressure liquid chromatography (RP HPLC).
Despotović Vesna   +4 more
doaj   +1 more source

Electronic effects in the cyclocondensation of benzil [PDF]

open access: yes, 2010
Electronic effects are important directing forces in the course of chem. reactions. Small differences in these effects can bring about considerable changes in the results of very similar reactions.
Nagendrappa, G.
core   +1 more source

New insights in the removal of the hydantoins, oxidation product of pyrimidines, via the base excision and nucleotide incision repair pathways. [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Oxidative damage to DNA, if not repaired, can be both miscoding and blocking. These genetic alterations can lead to mutations and/or cell death, which in turn cause cancer and aging.
Modesto Redrejo-Rodríguez   +6 more
doaj   +1 more source

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