About: http://webisa.webdatacommons.org/327963624

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	Examples of the substituent except for hydrogen atom, which can be preferably substituted to R21 to R26, include a t-butyl group, a phenyl group and a naphthyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com