About: http://webisa.webdatacommons.org/64356626

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	R1 is H, R2 is an alkoxy group including --OCH3, --OC2 H3, R3 is Ph; or
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca