About: http://webisa.webdatacommons.org/268506945

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 groups can be introduced as groups directly or indirectly attached at the heterocyclic base and the sugar substituents at the 2???, 3??? and 5???-positions.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com