Using CC(C)C[C@H](CO)Nc1nc(S)nc2nc(N)sc12, Cl to produce CC(C)C[C@H](CO)Nc1nc(SSc2nc(N[C@@H](CO)CC(C)C)c3sc(Cl)nc3n2)nc2nc(Cl)sc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.