Using COc1ccc(C(O)c2c(C)cc(OC)nc2OC)cc1, CC(=O)OI1(OC(C)=O)(OC(C)=O)OC(=O)c2ccccc21 to produce COc1cc(C)c(C(=O)c2ccccc2OC)c(OC)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.