About: http://webisa.webdatacommons.org/37451871

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	n O, S or N protecting group, provided that when X1X5 are oxygen and R2, R4 and R5 are hydrogen, at least one of Rl and R3 is other than hydrogen or methyl; or a pharmaceutically acceptable salt, hydrate or derivative thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com