http://www.w3.org/ns/prov#value | - nsubstituted n-alkoxycarbonyl group and zero, one or more additional functional groups; Ring B is substituted with at least one-H and at least one tert-butyl group, 1- ethenyl-2-carboxylic acid group or ester thereof, substituted or unsubstituted alkylenedioxy group, or substituted or unsubstituted n-alkoxycarbonyl group and zero, one or more additional functional groups; n is an integer equal to
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