| http://www.w3.org/ns/prov#value | - aving up to 20 carbon atoms or CN R3 is a covalent bond or a halogen substituted or unsubstituted alkylene having up to 20 carbon atoms, oxyalkylene having up to 20 carbon atoms, thioalkylene having up to 20 carbon atoms or a carboxyalkylene having 2 to 20 carbon atoms R4 is hydrogen, halogen substituted or an unsubstituted alkyl having 1 to 20 carbon atoms, cycloalkyl having 5 to 12 carbon atoms,
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