Using CC(C)(O)Cn1cnc2c(Cl)nc3ccccc3c21, C=CS(C)(=O)=O to produce CC(C)(Cn1cnc2c(Cl)nc3ccccc3c21)OCCS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.