http://www.w3.org/ns/prov#value | - with 1 to 20 carbon atoms, more preferably 1 to 16 carbon atoms and particularly preferably 1 to 12 carbon atoms, such as acetyl, benzoyl, formyl or pivaloyl), an alkoxycarbonyl group (preferably with 2 to 20 carbon atoms, more preferably 2 to 16 carbon atoms and particularly preferably 2 to 12 carbon atoms, such as methoxycarbonyl or ethoxycarbonyl), an aryloxycarbonyl group (preferably with 7 to
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