Using CCOC(=O)[C@@H]1CN(C(=O)OC(C)(C)C)CC[C@H]1c1cc(=O)n(C)c(C)c1C to produce Cc1c([C@@H]2CCN(C(=O)OC(C)(C)C)C[C@H]2C(=O)O)cc(=O)n(C)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.