Using CCOC(=O)C(CCCCCCCl)(CCCC(F)(F)C(F)(F)F)C(=O)OCC, [I-] to produce CCOC(=O)C(CCCCCCI)(CCCC(F)(F)C(F)(F)F)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.