Using NCC(=O)O, S=C1CN=C(c2ccccc2)c2cc(Cl)ccc2N1 to produce O=C(O)CNC1=Nc2ccc(Cl)cc2C(c2ccccc2)=NC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.