Using CCOC(=O)CC(c1cc(OCc2cnc(-c3cc(OC)ccc3F)c(O)c2)ncn1)C1CC1, OCCC(F)(F)F to produce CCOC(=O)CC(c1cc(OCc2cnc(-c3cc(OC)ccc3F)c(OCCC(F)(F)F)c2)ncn1)C1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.