Using CC(C)(CN(C(=O)CBr)c1c(F)cccc1F)NC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CC(=O)N(c2c(F)cccc2F)CC1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.