About: http://webisa.webdatacommons.org/449698628

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Preferably, for the compound of formula (IX), Ra represents a leaving group, especially a fluorine atom.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com