Using CC(C)(C)OC(=O)NCCOc1noc(-c2ccccc2)c1C(=O)O, CO to produce COC(=O)c1c(OCCNC(=O)OC(C)(C)C)noc1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.