<http://webisa.webdatacommons.org/372020228>	<http://www.w3.org/ns/prov#value>	"and R.sup.4 are as defined above and X is a halogen atom such as chlorine, bromine or iodine, to condensation reaction." .
<http://webisa.webdatacommons.org/372020228>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/prov/215812655>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/372020228> .
<http://webisa.webdatacommons.org/372020228>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .