<http://webisa.webdatacommons.org/152191238>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/152191238>	<http://www.w3.org/ns/prov#value>	"It is desired that R7 is a hydrogen atom from the standpoint of easy availability and cost of the starting material." .
<http://webisa.webdatacommons.org/prov/333569837>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/152191238> .
<http://webisa.webdatacommons.org/152191238>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .