Using CCOC(=O)c1sc(N2CCOCC2)c(C#N)c1C(CC=O)c1ccc(Cl)c(Cl)c1 to produce CCOC(=O)c1sc(N2CCOCC2)c(C#N)c1C(CCO)c1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.