Using CCOC(=O)Cc1ccc(OS(=O)(=O)C(F)(F)F)c(OC)c1, CN(C)C=O to produce CCOC(=O)Cc1ccc(C#N)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.