Using Cc1noc(C)c1Cn1cc(N)cn1, O=C(O)c1ccc2c(c1)OCO2 to produce Cc1noc(C)c1Cn1cc(NC(=O)c2ccc3c(c2)OCO3)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.