Using OCc1ccc(-n2cc3cc(Cc4ccccc4)ccc3n2)c(F)c1 to produce O=Cc1ccc(-n2cc3cc(Cc4ccccc4)ccc3n2)c(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.