Using COc1ccc(CN(Cc2ccc(OC)cc2)c2cc(C(CC(=O)OC(C)(C)C)C3(C)CC3)ccc2Cl)cc1 to produce CC(C)(C)OC(=O)CC(c1ccc(Cl)c(N)c1)C1(C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.