| http://www.w3.org/ns/prov#value | - onyl, ethoxycarbonyl and the like; dialkylamino with each alkyl containing 1 to 4 carbon atoms, for example dimethylamino, diethylamino and the like; halogen, for example, chloro, bromo, iodo, and the like; nitro; a 5- or 6-membered heterocyclic group, for example pyrrolidino, morpholino, piperidino, pyridinium, and the like; a halo-substituted alkoxy group, for example ??-chloroethoxy, ??-iodoeth
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