Using CCC(CCC(=O)OC)(c1ccc(Cl)cc1)n1ccc2c(NS(C)(=O)=O)cccc21 to produce CCC(CCCO)(c1ccc(Cl)cc1)n1ccc2c(NS(C)(=O)=O)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.