Using COC(=O)c1nn(C)c(=O)cc1Nc1ccc(SC)cc1F, C=COCCON to produce C=COCCONC(=O)c1nn(C)c(=O)cc1Nc1ccc(SC)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.