Using FC(F)(F)c1cccc(Cl)n1, COCc1n[nH]cc1C(=O)OC to produce COCc1nn(-c2cccc(C(F)(F)F)n2)cc1C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.