<http://webisa.webdatacommons.org/prov/333848442>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/250124977> .
<http://webisa.webdatacommons.org/250124977>	<http://www.w3.org/ns/prov#value>	"R3 is a hydrogen atom or C1-6 alkyl optionally having 1 to 5" .
<http://webisa.webdatacommons.org/250124977>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .
<http://webisa.webdatacommons.org/prov/464280906>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/250124977> .
<http://webisa.webdatacommons.org/250124977>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .