Using Cc1nc(C=C(OC(=O)c2ccccc2F)c2ccccc2F)n(C(=O)c2ccccc2F)c1C to produce Cc1nc(CC(=O)c2ccccc2F)[nH]c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.