Using COC(=O)c1cnc(OC)c(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)c1 to produce COc1ncc(C(=O)O)cc1N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.