Using [O-]P(OCC(F)(F)F)OCC(F)(F)F, CN(C)C(=O)CBr to produce CN(C)C(=O)CP(=O)(OCC(F)(F)F)OCC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.