prov:value
| - io, Y is carbonyl, (CH2)1-3, (CH2)1-3C(O), or (CH2)1-3SO2 and Z is (??-(4-pyridyl)(C2???C4 alkoxy), (??-((R8)(R9)amino)(C2???C4 alkoxy), wherein R8 and R9 are each H, (C1???C3)alkyl or together with N are a 5- or 6-membered heterocyclic ring comprising 1???3 N(R8), S or nonperoxide O; an amino acid ester of (??-(HO)(C2???C4))alkoxy, N(R8)CH(R8)CO2H, 1???-D-glucuronyloxy; Y-Z is (CH2)1-3R8 wherein
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