Using CI, O=C(Nc1cnccn1)Nc1ccnc2ccc(C(F)(F)F)cc12 to produce CN(C(=O)Nc1ccnc2ccc(C(F)(F)F)cc12)c1cnccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.