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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	wherein R.sup.1 to R.sup.6, A, B and D are as defined above, and X and Y each represent a leaving group such as a halogen atom, tosyloxy group or mesyloxy group.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com