Using CC(C)C(=O)Nc1cc(C2CCN(C(=O)OC(C)(C)C)CC2)c(F)cc1F to produce CC(C)C(=O)Nc1cc(C2CCNCC2)c(F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.