Using CC(C)(C)OC(=O)CC1(C)NC(=O)NC1=O, O=S(=O)(OCC(F)(F)F)C(F)(F)F to produce CC(C)(C)OC(=O)CC1(C)NC(=O)N(CC(F)(F)F)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.