| http://www.w3.org/ns/prov#value | - Examples of general classes of RE include groups that will yield a stable cation upon treatment with aqueous acid (e.g. tertiary substituents, meaning for the purposes of the instant specification and claims any substituent wherein the carbon atom bonded to the 1-nitrogen is fully substituted with electron-donating groups, for example hydroxy, alkoxy, acyloxy, halogen, alkyl, phenyl, and the like)
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