| http://www.w3.org/ns/prov#value | - In some further embodiments, side chains are locally modified, for example, by ??E or ??z dehydro modification, in which a double bond is present between the ?? and ?? atoms of the side chain, or for example by ??E or ??z cyclopropyl modification, in which a cyclopropyl group is present between the ?? and ?? atoms of the side chain.
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