Results 11 to 20 of about 107,424 (195)
A simple and efficient process for the extraction of naringin from grapefruit peel waste
An improved method to obtain naringin, a bitter flavored flavanone glicoside with proven biological activities, from grapefruit (Citrus x paradisi L.) peel waste is described. The proposed modification of the known process, which involves extraction with
Victor Mauricio M. +4 more
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1,2-Naphthoquinone-4-sulfonic acid salts in organic synthesis
Several low molecular weight naphthoquinones are very useful in organic synthesis. These compounds have given rise to thousands of other naphthoquinones that have been tested against various microorganisms and pharmacological targets, including being ...
Ruan Carlos B. Ribeiro +5 more
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Synthesis of platinum and palladium complexes with bis-(hydroxy imines)
The Schiff bases are an important class of compounds well used as ligands in coordination chemistry. The functionalized bis-imines, that represent a specific group of Schiff base, have been studied in our research group both for the evaluation of ...
Lucas M. Arantes +2 more
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Organothiocyanates and selenocyanates are valuable compounds, both in terms of functional group interconversion and due to their biological activities. In this contribution, we report the synthesis of a series of these important substances in a mixture ...
Alix Y. Bastidas Ángel +2 more
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One-pot preparation of substituted pyrroles from α-diazocarbonyl compounds
In this work an efficient one-pot synthesis of substituted pyrroles 7a–n is described, which involves the in situ formation of dihydrofurans ethyl 5-butoxy-2-methyl-4,5-dihydrofuran-3-carboxylate (4), 1-(5-butoxy-2-methyl-4,5-dihydrofuran-3-yl)ethanone ...
Fernando de C. da Silva +5 more
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The chemical indexes, suggested by Gottlieb et al., have not been used before regarding evolutionary tendency of species in the Swartzia genus. However, the importance of this work encour- aged for an analysis of the Swartzia genus using the metabolites ...
Aderbal F. Magalhães +3 more
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Leishmaniasis is a neglected disease caused by protozoan parasites of the Leishmania genus. Benzylamines are a class of compounds selectively designed to inhibit the squalene synthase (SQS) that catalyzes the first committed reaction on the sterol ...
Sara Teixeira de Macedo-Silva +6 more
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HPLC Quantification of Cytotoxic Compounds from Aspergillus niger
A high-performance liquid chromatography method was developed and validated for the quantification of the cytotoxic compounds produced by a marine strain of Aspergillus niger.
Paula Karina S. Uchoa +5 more
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Synthetic model of a new deoxybenzoin derivative from Deguelia hatschbachii A.M.G. Azevedo
In this paper we describe the synthesis of 2 ́,4 ́-dimethoxy-8-(propyl-2-one)-deoxybenzoin, a new compound employed as a model for the comparison with the respective spectral data for 6’,4- dihydroxy-3’-(3,3- dimethylallyl)-2",2"-dimethylchromene(5",6":5’
A. F. Magalhães +3 more
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Nanotechnology has assumed a significant role over the last decade in the development of various technologies applied to health sciences. This becomes even more evident with its application in controlled drug delivery systems.
Thaissa Pasquali F. Rosalba +3 more
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