Using CCOc1ccc(C=O)c(OCC)c1OCC, CC(C)(C)OC(=O)N1CCNCC1 to produce CCOc1ccc(CN2CCN(C(=O)OC(C)(C)C)CC2)c(OCC)c1OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.