Using COC(=O)c1ccc2c(C3CCCCC3)c3n(c2c1)CCN(C(=O)OC(C)(C)C)c1ccccc1-3 to produce CC(C)(C)OC(=O)N1CCn2c(c(C3CCCCC3)c3ccc(C(=O)O)cc32)-c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.