<http://webisa.webdatacommons.org/prov/295754617>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/245333584> .
<http://webisa.webdatacommons.org/245333584>	<http://www.w3.org/ns/prov#value>	"R.sup.7 is hydrogen; or lower alkyl such as methyl, ethyl, propyl, isopropyl and butyl;" .
<http://webisa.webdatacommons.org/245333584>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/375325737>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/245333584> .
<http://webisa.webdatacommons.org/245333584>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .