Using COCCOc1cc2nncc(Oc3cc(OCc4ccccc4)c(C)cc3F)c2cc1OC to produce COCCOc1cc2nncc(Oc3cc(O)c(C)cc3F)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.