Using Nc1ccccc1NC(=O)c1nc2c(s1)CNCC2, O=C(O)COc1ccccc1 to produce Nc1ccccc1NC(=O)c1nc2c(s1)CN(C(=O)COc1ccccc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.