| http://www.w3.org/ns/prov#value | - in which R1 is a methyl group, R2 is a 2-hydroxyethyl group, R3 is a methyl group, R4 ii a hydrogen atom, Z is a group represented by the formula ???NMe-CH2???, R7 and R8 are a hydroxy group, R9 is a hydrogen atom, R10 is a hydroxy group, and A is a group represented by the formula ???NMe-, a compound in which R1 is a methyl group, R2 is a 2-hydroxyethyl group, R3 is a methyl group, R4 is a hydrog
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