Using O=C=O, Fc1cccc2c1OC(c1ccccc1)(c1ccccc1)O2 to produce O=C(O)c1ccc2c(c1F)OC(c1ccccc1)(c1ccccc1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.