Using O=C(O)c1cnc(COCc2ccccc2)nc1O, NC(c1ccccc1)c1ccccc1 to produce O=C(NC(c1ccccc1)c1ccccc1)c1cnc(COCc2ccccc2)nc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.