| http://www.w3.org/ns/prov#value | - In Formula VI, Z is a leaving group such as a halogen, --OSO2 CH3, or --O--SO2 --C6 H5 --CH3 and R2, D, and n are as defined in Formula I. It is also preferred that the non-reacting substituents of the ??-alkanoic acid derivative other than R2 correspond to those appearing in the final product.
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