Using CC(C)(C)OC(=O)NCCOc1cc2c(cc1OCCNC(=O)OC(C)(C)C)C(=O)OC2 to produce CC(C)(C)OC(=O)NCCOc1cc(CO)c(CO)cc1OCCNC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.