| http://www.w3.org/ns/prov#value | - ylcarbonyl or thienylcarbonyl,one of A and E is a nitrogen and the other is a radical of formula C--Y.sup.4 where Y.sup.4 is C.sub.1 -C.sub.20 -alkyl with or without substitution and with or without interruption by from 1 to 4 oxygen atoms in ether function, substituted orunsubstituted phenyl, mercapto or substituted or unsubstituted C.sub.1 -C.sub.20 -alkylthio, andQ.sup.1, Q.sup.2, Q.sup.3 and Q
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