Using O=C([O-])O, Fc1ccc(-c2nn3ccnnc3c2-c2ccnc(F)c2)cc1 to produce COc1cc(-c2c(-c3ccc(F)cc3)nn3ccnnc23)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.