Using CCOC(=O)c1c(C)nc2c(ccn2Cc2ccc(F)c(F)c2)c1N, O=S(=O)(O)O to produce CCOC(=O)c1c(C)nc2c(ccn2Cc2ccc(F)c(F)c2)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.