Using CCOC(=O)CN(C)C(=S)CCc1nc2c(F)c(F)cc(F)c2s1 to produce CN(CC(=O)O)C(=S)CCc1nc2c(F)c(F)cc(F)c2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.