Using COS(=O)(=O)OC, CC(C)[C@H]1CC[C@@H](N2CCC3(CC2)C(O)CCN3c2ccccc2)CC1 to produce COC1CCN(c2ccccc2)C12CCN([C@H]1CC[C@@H](C(C)C)CC1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.