Using CC(C)(C)OC(=O)N1CCN(c2nccnc2-c2cccc(C(F)(F)F)c2F)CC1 to produce Fc1c(-c2nccnc2N2CCNCC2)cccc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.