About: http://webisa.webdatacommons.org/365957990

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	Alternatively, compounds of formula 5 may be converted to compounds of formula 6 by exposure to an acid such as trifluoroacetic acid in a solvent such as dichloromethane at or near room temperature over a period of 1 to 5 days.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com