Using COC(=O)CO, Cc1c(Cl)c(S(C)=O)nc2sc(C(=O)NC3CC3)c(N)c12 to produce COC(=O)COc1nc2sc(C(=O)NC3CC3)c(N)c2c(C)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.