<http://webisa.webdatacommons.org/418305537>	<http://www.w3.org/ns/prov#value>	"Preferably, R1 is a hydrogen or methyl radical." .
<http://webisa.webdatacommons.org/prov/283752978>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/418305537> .
<http://webisa.webdatacommons.org/prov/29868670>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/418305537> .
<http://webisa.webdatacommons.org/418305537>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/141546618>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/418305537> .
<http://webisa.webdatacommons.org/418305537>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.fr> .