| http://www.w3.org/ns/prov#value | - lkyl) piperazinyl; R3 is hydrogen, halogen, C1 -C8 -alkyl, phenyl, phenyl substituted by C1 -C4 -alkyl, C1 -C4 -alkoxy, amino, hydroxyl, halogen or nitro; benzyl; benzyl which phenyl ring thereof is substituted by C1 -C4 -alkyl, C1 -C4 -alkoxy, amino, hydroxyl, halogen or nitro; cyclohexyl, thienyl, hydroxyl or C1 -C8 -monoalkylamino; and Q is a radical of an acidic --CH compound, wherein Q is der
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