Using CCOC(=O)C(NC(C)=O)C(=O)OCC, CC(C)=CCCBr to produce CCOC(=O)C(CCC=C(C)C)(NC(C)=O)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.