Using CC(=O)N1CCc2ccc(S)cc2C1, CCOC(=O)C1(CCI)CCN(C(=O)OC(C)(C)C)CC1 to produce CCOC(=O)C1(CCSc2ccc3c(c2)CN(C(C)=O)CC3)CCN(C(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.