About: http://webisa.webdatacommons.org/123291590

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	R. sup. 3 is selected from the group consisting of hydrogen, alkyl, heterocyclic, and aryl groups, provided that R. sup. 3 may form a ring with A or is a group joined to R. sup. 4 to form a heterocyclic five- or six-membered ring;
http://www.w3.org/ns/prov#wasQuotedFrom	radaris.com