Using CCn1cc(C(O)CN(C)C)c2c(OC)cc(-c3ccccc3)cc21 to produce CCn1cc(CCN(C)C)c2c(OC)cc(-c3ccccc3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.