About: http://webisa.webdatacommons.org/293204996

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	Preferably R1 is a phenyl or naphthalene radical which is unsubstituted or substituted with one or more lower alkyl groups and/or with electron withdrawing groups such as nitro or cyano.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com