Using CN1CCN(c2c(F)c(NC(=O)C(C)(C)C)c3c(=O)cc(-c4ccc(NC(=O)C(C)(C)C)c(F)c4)oc3c2F)CC1 to produce CN1CCN(c2c(F)c(N)c3c(=O)cc(-c4ccc(N)c(F)c4)oc3c2F)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.