Using COC(=O)c1ccc2c(c1)CCCN2c1ncc(C(=O)N2CCOCC2)c(C(F)(F)F)n1 to produce O=C(O)c1ccc2c(c1)CCCN2c1ncc(C(=O)N2CCOCC2)c(C(F)(F)F)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.