Using COC(=O)c1cc(C2CN(C(=O)OC(C)(C)C)C2)cc(N(C)C2CCOCC2)c1C to produce Cc1c(C(=O)O)cc(C2CN(C(=O)OC(C)(C)C)C2)cc1N(C)C1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.