Using C=CCBr, CC(C)(C)OC(=O)NCCNC(=O)C(F)(F)F to produce C=CCN(CCNC(=O)OC(C)(C)C)C(=O)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.