Using CC1(C)CCC(C)(C)c2cc(-c3cccc(N4CCN(CCN5CCOC5=O)CC4)n3)ccc21 to produce CC1(C)CCC(C)(C)c2cc(-c3cccc(N4CCN(CCNCCO)CC4)n3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.