Using COc1cnc(-c2ccccc2)c2sc(N)nc12, O=C(O)c1ccnc(N2CCOCC2)c1 to produce COc1cnc(-c2ccccc2)c2sc(NC(=O)c3ccnc(N4CCOCC4)c3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.