| http://www.w3.org/ns/prov#value | - R7 is a member selected from the group consisting of H and alkyl, Z is a member selected from the group consisting of o-phenylene and o-naphthalene or alkyl, R1 and R2 are each a member selected from the group consisting of H, allyl, alkenyl, carboxy, carboxyalkyl, allyloxy, aminoalkyl, hydroxy, thio, and alkylthio.
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