Using CC(=O)OC(C)=O, O=C(O)c1ccc(C2(c3nc4c(s3)CNCC4)CCOCC2)cc1 to produce CC(=O)N1CCc2nc(C3(c4ccc(C(=O)O)cc4)CCOCC3)sc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.