Using CC(C)(C)OC(=O)NCCCCO, COCOc1c(C(=O)OC)c(O)cc2ccccc12 to produce COCOc1c(C(=O)OC)c(OCCCCNC(=O)OC(C)(C)C)cc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.