Using O=C(O)c1ccc(N2CC(F)(F)C2)c(OCC2CC2)n1, CC1(O)CCNC1 to produce CC1(O)CCN(C(=O)c2ccc(N3CC(F)(F)C3)c(OCC3CC3)n2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.