Using Fc1ccccc1CBr, Nc1nc(-c2ccco2)c2[nH]nnc2n1 to produce Fc1ccccc1CN(Cc1ccccc1F)c1nc(-c2ccco2)c2nnn(Cc3ccccc3F)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.