Using COC(OC)N(C)C, COC(=O)Cc1ccccc1SCc1cc(F)ccc1F to produce COC(=O)C(=CN(C)C)c1ccccc1SCc1cc(F)ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.