| http://www.w3.org/ns/prov#value | - R3 is a linear alkyl group of from 1 to about 10 carbon atoms or an alkenyl group of from 2 to 10 carbon atoms, which can be halogenated, R3??? is a in ??-position or in ??-position cyclic or branched alkyl group of from 3 to about 20 carbon atoms, an alkenyl group of from 3 to about 20 carbon atoms, an alkylaryl group of from 7 to about 20 carbon atoms, or a trimethylsilyl group,
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