About: http://webisa.webdatacommons.org/54634657

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	When X is a heterocyclic ring and R3 is R4 S, the compounds can be synthesized by a reaction of R1 R2 NR4 -Cl with dimercapto substituted heterocyclic ring.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca