Using CI, COC(=O)c1ncc2c(ccn2Cc2ccc(F)cc2)c1O to produce COC(=O)c1ncc2c(ccn2Cc2ccc(F)cc2)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.