Using Cn1cc(C(=O)c2cncc(N)c2)c2cncnc21, O=C(O)Cc1cc(F)ccc1C(F)(F)F to produce Cn1cc(C(=O)c2cncc(NC(=O)Cc3cc(F)ccc3C(F)(F)F)c2)c2cncnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.