| http://www.w3.org/ns/prov#value | - atoms, such as acetyl, benzoyl, formyl or pivaloyl), a sulfonyl group (preferably having 1 to 30 carbon atoms, still preferably 1 to 20 carbon atoms, particularly preferably 1 to 12 carbon atoms, such as mesyl or tosyl), a heterocyclic group (preferably
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