Using CC(=O)c1cccc(N)c1O, O=C(O)c1ccc2c(c1)CCC(COCc1ccccc1)O2 to produce CC(=O)c1cccc(NC(=O)c2ccc3c(c2)CCC(COCc2ccccc2)O3)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.