<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Siopa, F.</style></author><author><style face="normal" font="default" size="100%">Pereira, AS</style></author><author><style face="normal" font="default" size="100%">Ferreira, LM</style></author><author><style face="normal" font="default" size="100%">Marques, M. M.</style></author><author><style face="normal" font="default" size="100%">Branco, P.S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis of catecholamine conjugates with nitrogen-centered bionucleophiles</style></title><secondary-title><style face="normal" font="default" size="100%">Bioorganic Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://WOS:000313902300003</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">44</style></volume><pages><style face="normal" font="default" size="100%">19-24</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The enzymatic (tyrosinase) and chemical (NaIO4, Ag2O or Fremys's salt) oxidation of biologically relevant catecholamines, such as dopamine (DA), N-acetyldopamine (NADA) and the Ecstasy metabolites (alpha-MeDA and N-Me-alpha-MeDA) generates the corresponding o-quinone which can be trapped with nitrogen bionucleophiles such as N-acetyl-histidine and imidazole in a regioselective reaction that takes place predominantly at the 6-position of the catecholamine. (C) 2012 Elsevier Inc. All rights reserved.&lt;/p&gt;
</style></abstract><work-type><style face="normal" font="default" size="100%">Journal Article</style></work-type><notes><style face="normal" font="default" size="100%">&lt;p&gt;Times Cited: 0 Siopa, Filipa Pereira, Alice S. Ferreira, Luisa M. Matilde Marques, M. Branco, Paula S.&lt;/p&gt;
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