Using C[S-], Clc1ccc2nc(Cl)nc(NCc3ccc4c(c3)OCO4)c2c1 to produce CSc1nc(NCc2ccc3c(c2)OCO3)c2cc(Cl)ccc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.