<?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, Filipa</style></author><author><style face="normal" font="default" size="100%">Pereira, Alice S.</style></author><author><style face="normal" font="default" size="100%">Ferreira, Luisa M.</style></author><author><style face="normal" font="default" size="100%">Matilde Marques, M.</style></author><author><style face="normal" font="default" size="100%">Branco, Paula 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><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ACADEMIC PRESS INC ELSEVIER SCIENCE</style></publisher><pub-location><style face="normal" font="default" size="100%">525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA</style></pub-location><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%">{English}</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The enzymatic (tyrosinase) and chemical (NaIO4, Ag2O or Fremys&amp;apos;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><notes><style face="normal" font="default" size="100%">n/a</style></notes><custom3><style face="normal" font="default" size="100%">papers2://publication/uuid/397F541F-C5EB-4E3E-81F4-A1AA5B57781E</style></custom3><auth-address><style face="normal" font="default" size="100%">{Marques, MM (Reprint Author), IST, CQE, Complexo 1,Av Rovisco Pais, P-1049001 Lisbon, Portugal. Siopa, Filipa; Pereira, Alice S.; Ferreira, Luisa M.; Branco, Paula S., Univ Nova Lisboa, Fac Ciencias \&amp;amp; Tecnol, REQUIMTE, Dept Chem, P-2829516 Caparica, Portugal. Matilde Marques, M., Univ Tecn Lisboa, Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal.}</style></auth-address><label><style face="normal" font="default" size="100%">r08436</style></label></record></records></xml>