| http://www.w3.org/ns/prov#value | - The term optionally substituted as used herein means that the groups in question are either unsubstituted or substituted with one or more of the substituents such as for example those specified above and phenyl, substituted phenyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, halogen (-F, -CI, -Br, -I), -COOH, -NH 2 , -NHR and -NRR' wherein R and R' are each independently a straight or branch
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