| http://www.w3.org/ns/prov#value | - cal, said lower alkanediyl radical being optionally substituted by a hydroxy- or a lower alkyl radical; and Q is a member selected from the group consisting of aryl; diarylmethyl, the methyl moiety in said diarylmethyl group being optionally substituted with a cyano or a lower alkyloxycarbonyl radical; diarylamino; and 1-aryl-1,3-dihydroisobenzofuran-1-yl,wherein aryl is a member selected from the
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