Using CCOC(=O)C1CCC(Oc2nc3c(F)c(-c4ccc(-c5ccccc5)cc4)c(F)cc3[nH]2)CC1 to produce O=C(O)C1CCC(Oc2nc3c(F)c(-c4ccc(-c5ccccc5)cc4)c(F)cc3[nH]2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.