<http://webisa.webdatacommons.org/49775117>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/49775117>	<http://www.w3.org/ns/prov#value>	"According to the invention therefore, there are provided compounds of the general formula I: ##STR2## in which R1 is a halogen atom or a group NR2 R3 ;" .
<http://webisa.webdatacommons.org/49775117>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/333262910>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/49775117> .