Using COC(=O)c1ccc(C(O)c2c3n(c4ccccc24)CN(C)CC3)cc1 to produce COC(=O)c1ccc(Cc2c3n(c4ccccc24)CN(C)CC3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.