Using Nc1ncnc2c1ncn2C1OC(CC(S(=O)c2ccccc2)P(=O)(O)O)C(F)C1O to produce Nc1ncnc2c1ncn2C1OC(C=CP(=O)(O)O)C(F)C1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.