Using O=C([O-])[O-], CC(C)Oc1ccccc1NCCNCc1cccc(C(=O)N2CCCCC2)c1 to produce CC(C)Oc1ccccc1NCCN(C)Cc1cccc(C(=O)N2CCCCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.