About: http://webisa.webdatacommons.org/456640239

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	In the formula for the intermediate, at least one of X1, X2, X3, X4, X5, X6, X7, and X8 is a protecting group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com