Using COC(=O)Cc1c(Oc2cc(Oc3ccccc3F)ncn2)c(C)nn1C, COC=O to produce COC(=O)/C(=C/O)c1c(Oc2cc(Oc3ccccc3F)ncn2)c(C)nn1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.