Using COC(=O)CN, CCC(CC)(c1ccc(OCC(=O)C(C)(C)C)c(C)c1)c1nc2cc(C(=O)O)ccc2o1 to produce CCC(CC)(c1ccc(OCC(=O)C(C)(C)C)c(C)c1)c1nc2cc(C(=O)NCC(=O)O)ccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.