Using O=C(O)C(F)(F)F, CCOC(=O)CSc1nc2ccc(OC)cc2[nH]1 to produce CCOC(=O)CSc1nc2ccc(OC)c(C=O)c2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.