Using O=C1NC(=O)c2ccccc21, Cc1c(C)c2c(c(C)c1OCc1ccccc1)CC(CCO)O2 to produce Cc1c(C)c2c(c(C)c1OCc1ccccc1)CC(CCN1C(=O)c3ccccc3C1=O)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.