Using O=C(O)c1ccc2c(c1)cc(C(=O)N1CCOCC1)n2CC(F)(F)F, CC(C)N1CCNCC1 to produce CC(C)N1CCN(C(=O)c2ccc3c(c2)cc(C(=O)N2CCOCC2)n3CC(F)(F)F)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.