| http://www.w3.org/ns/prov#value | - wherein alkyl is unsubstituted or mono-, di- or trisubstituted independently of one another by halogen, ???OH or a methoxy residue, or 4. ???O???(C1-C4)-alkyl, wherein alkyl is unsubstituted or mono-, di- or trisubstituted independently of one another by halogen or a methoxy residue, provided that R8 is at least one halogen, ???C(O)???NH2 or ???O???(C1-C8)-alkyl residue, if R0 is a aryl or a hete
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