Using CCOC(=O)C1CC1c1cnc2[nH]cc(C(=O)Cc3cccc(F)c3F)c2c1 to produce O=C(Cc1cccc(F)c1F)c1c[nH]c2ncc(C3CC3C(=O)O)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.