Using CC(C)(C)OC(=O)N1CCc2ccc(Oc3ccnc(NC(=O)C4CC4)c3)cc2C1 to produce O=C(Nc1cc(Oc2ccc3c(c2)CNCC3)ccn1)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.