<http://webisa.webdatacommons.org/2961303> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/497819840> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/2961303> . <http://webisa.webdatacommons.org/2961303> <http://www.w3.org/ns/prov#value> "Examples of imidazolyl-protecting groups which may be represented by R13 include: aralkyl groups in which an alkyl group having from 1 to 4 carbon atoms is substituted by at least one (preferably from 1 to 3) aryl groups, which themselves can optionally be substituted by at least one nitro group or alkoxy group having from 1 to 4 carbon atoms, for example the benzyl, p-nitrobenzyl, p-methoxybenzyl" . <http://webisa.webdatacommons.org/2961303> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> .