Using CC(=O)OCc1cc(OCCNC(=O)OC(C)(C)C)c(OCc2ccccc2)cn1 to produce CC(=O)OCc1cc(OCCNC(=O)OC(C)(C)C)c(O)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.