Using C=CCBr, COCN1C(=O)C(C(=O)OC)C(c2ccccc2OC)Cc2cc(C(F)(F)F)ccc21 to produce C=CCC1(C(=O)OC)C(=O)N(COC)c2ccc(C(F)(F)F)cc2CC1c1ccccc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.