| prov:value
| - otecting group or both RPR together are a protecting group, A8 is C1-C10 optionally substituted alkyl, and R15A independently are ???H, ???CH3, ???C2H5, ???C3H7, ???C4H9, ???C(CH3)3, ???CH2OH, ???C2H4OH, ???C3H6OH, ???C4H8OH???C(CH2OH)(CH3)2, ???C3H5, ???C4H7, optionally substituted C1-10 alkyl, C1-10 perfluoroalkyl, optionally substituted aryl, optionally substituted C1-12 alkylaryl, optionally s
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