Using COc1ccc(C(=CCN2CCN(Cc3ccccc3)CC2)C2(O)CCCCC2)cc1 to produce COc1ccc(C(CCN2CCNCC2)C2(O)CCCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.