About: http://webisa.webdatacommons.org/335703693

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	Such stain can be avoided if R6 is a group which blocks the normal coupling position, e.g., an alkyl group having 1-4 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com