| http://www.w3.org/ns/prov#value | - For the production of those compounds of Formula I wherein R1 is amino, (C1 -C4)alkylamino, di- (C1 -C4)alkyl!amino, pyrrolidin-1-yl, piperidino, morpholino, piperazin-1-yl, 4-(C1 -C4)alkylpiperazin-1-yl or (C1 -C4)alkythio, the reaction, conveniently in the presence of a suitable base, of a Formula I compound wherein R1 is a displaceable group with an appropriate amine or thiol may be preferred.
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