<http://webisa.webdatacommons.org/prov/131161656>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/121058658> .
<http://webisa.webdatacommons.org/121058658>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/121058658>	<http://www.w3.org/ns/prov#value>	"A typical synthetic procedure is illustrated below in which R1, R2 and X have the significance previously assigned, and R is a lower alkyl group. ##STR3##" .
<http://webisa.webdatacommons.org/121058658>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .