Using CCC1CN(c2c(S(C)(=O)=O)ccc(C(=O)c3cnn(CC)c3O)c2Cl)CC(O)O1 to produce CCC1CN(c2c(S(C)(=O)=O)ccc(C(=O)c3cnn(CC)c3O)c2Cl)CCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.