Using COc1ccc(C(=O)N2C[C@H]3CC4C[C@]4(NC(=O)OC(C)(C)C)[C@H]3C2)cc1 to produce COc1ccc(CN2C[C@H]3CC4C[C@]4(NC(=O)OC(C)(C)C)[C@H]3C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.