Using CCOc1cc(F)c(Cn2nc(-c3ncc(OC)c(Nc4ccncc4)n3)c(C)c2C2CC2)c(F)c1 to produce CCOc1cc(F)c(Cn2nc(-c3ncc(O)c(Nc4ccncc4)n3)c(C)c2C2CC2)c(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.