Using OCCN1CCOCC1, CC(C)(C)OC(=O)NC1CCN(c2cc(F)c(C#N)c(F)c2)CC1 to produce CC(C)(C)OC(=O)NC1CCN(c2cc(F)c(C#N)c(OCCN3CCOCC3)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.