<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0121-1935</journal-id>
<journal-title><![CDATA[Revista de Ciencias]]></journal-title>
<abbrev-journal-title><![CDATA[rev. cienc.]]></abbrev-journal-title>
<issn>0121-1935</issn>
<publisher>
<publisher-name><![CDATA[Universidad del Valle]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-19352017000100133</article-id>
<article-id pub-id-type="doi">10.25100/rc.v21i1.6346</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[5-Deazaflavinas: síntesis química]]></article-title>
<article-title xml:lang="en"><![CDATA[5-Deazaflavins: Chemical Synthesis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trilleras Vásquez]]></surname>
<given-names><![CDATA[Jorge Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Yañez]]></surname>
<given-names><![CDATA[Omar S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González López]]></surname>
<given-names><![CDATA[Edwin Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Atlántico Programa de Química ]]></institution>
<addr-line><![CDATA[Puerto Colombia Atlántico]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad del Atlántico Programa de Especialización en Química Orgánica ]]></institution>
<addr-line><![CDATA[Puerto Colombia Atlántico]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>21</volume>
<numero>1</numero>
<fpage>133</fpage>
<lpage>158</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-19352017000100133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-19352017000100133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-19352017000100133&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las 5-Deazaflavinas, están involucradas en reacciones enzimáticas redox de una variedad de sistemas biológicosyguardan similitud estructuralconla riboflavina. Laspropiedadeselectroquímicas y fotoquímicas son resultado de la sustitución del N-5 del anillo de la isoaloxazina por un átomo de carbono. En esta revisión, se describen los avances en la obtención de 5-deazaflavinas y análogos a partir de ácido barbitúrico, análogos de uracilo, triamino-tricloropirimidinas y quinolincarbonitrilos. El grado y tipo de sustitución de las 5-deazaflavinas, se obtiene a través de los aldehídos y aminas utilizadas, vía reacciones clásicas, simples y convergentes. Comparando las diferentes estrategias sintéticas reportadas, para la construcción de 5-deazaflavinas y análogos, estas se clasifican en dos estrategias generales: i) la construcción del anillo de quinolina sobre el anillo pirimidínico o ii) la construcción del anillo pirimidínico sobre el anillo quinolínico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract 5-Deazaflavinas are involved in enzymatic redox reactions from a variety of biological systems and have structural similarity with riboflavin. Electrochemical and photochemical properties are the result of the substitution of N-5 of the isoalloxazine ring for a carbon. Herein, we described the progress in obtaining 5-deazaflavins analogues starting from barbituric acid, uracil analogues, three amino-threechloropirimidines and quinolincarbonitriles. Molecular diversity was obtained using both appropriately substituted aldehydes and amines, via conventional, simple and convergent reactions. When comparing the different synthetic reported strategies for the construction of the 5-desflavines and analogues, these are classified into two general strategies: i) construction of the quinoline ring over pyrimidine moiety or ii) construction of the pyrimidine ring over quinoline moiety.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[5-Deazaaloxazinas]]></kwd>
<kwd lng="es"><![CDATA[5-Deazaflavinas]]></kwd>
<kwd lng="es"><![CDATA[Flavin análogos]]></kwd>
<kwd lng="es"><![CDATA[Síntesis Heterocíclica]]></kwd>
<kwd lng="en"><![CDATA[5-Deazaalloxazines]]></kwd>
<kwd lng="en"><![CDATA[5-Deazaflavins]]></kwd>
<kwd lng="en"><![CDATA[Flavin analog]]></kwd>
<kwd lng="en"><![CDATA[Heterocyclic synthesis]]></kwd>
</kwd-group>
</article-meta>
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