Using CC(C)(C)OC(=O)N1CCC(C(=O)N2CCN(c3cccc(-c4nc5ccccc5n4C(F)F)c3)CC2)CC1 to produce O=C(C1CCNCC1)N1CCN(c2cccc(-c3nc4ccccc4n3C(F)F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.