| http://www.w3.org/ns/prov#value | - Such an aryl groupmay have 1 to 3 substituents such as hydroxy, halo, haloalkyl, nitro, cyano, alkoxy, and low alkylamino.An arylalkyl group which can be used in the embodiments of the present invention (e.g., R.sub.1-R.sub.5 of Formula 1 and R.sub.3-R.sub.6 of Formula 2) indicates that one or more hydrogen atoms included in the alkyl group is substituted with thearyl group.A heteroarylalkyl group
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