Using COCCCl, O=C(c1ccccc1)N1CCN(Cc2ccc(OC3CCNCC3)cc2)CC1 to produce COCCN1CCC(Oc2ccc(CN3CCN(C(=O)c4ccccc4)CC3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.