Using CC(C)(C)OC(=O)N1CCC(C(=O)c2nc3ccccc3n2CCOCc2ccco2)CC1 to produce O=C(c1nc2ccccc2n1CCOCc1ccco1)C1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.